Updated with changes from Percona Server 5.1.54-12.5, from lp:percona-server

as of February 4, 2011/ Merged: revid:oleg.tsarev@percona.com-20110113143630-b9ojivymbiwe3y2i
15 years ago · 8e0ed9eeba
138 changed files with 3975 additions and 752 deletions
--- a/117
+++ b/117
@ -1,30 +1,121 @@
+2010-11-11	The InnoDB Team
+	* thr/thr0loc.c, trx/trx0i_s.c:
+	Fix Bug#57802 Empty ASSERTION parameter passed to the HASH_SEARCH macro
+
+2010-11-10	The InnoDB Team
+
+	* dict/dict0dict.c, handler/handler0alter.cc, include/dict0dict.h
+	row/row0merge.c:
+	Fix Bug#55084 InnoDB crash and corruption after ALTER TABLE
+
+2010-11-10	The InnoDB Team
+
+	* srv/srv0start.c:
+	Fix Bug#48026 Log start and end of InnoDB buffer pool
+	initialization to the error log
+
+2010-11-03	The InnoDB Team
+
+	* include/btr0btr.h, include/btr0btr.ic, dict/dict0crea.c:
+	Fix Bug#57947 InnoDB diagnostics shows btr_block_get calls
+	instead of real callers
+
+2010-11-03	The InnoDB Team
+
+	* fil/fil0fil.c, fsp/fsp0fsp.c, handler/ha_innodb.cc,
+	include/fil0fil.h, include/univ.i:
+	Fix Bug #54538 - use of exclusive innodb dictionary lock limits
+	performance.
+
+2010-11-02	The InnoDB Team
+
+	* btr/btr0cur.c, dict/dict0dict.c, dict/dict0load.c,
+	handler/ha_innodb.cc, include/dict0dict.h, row/row0mysql.c,
+	innodb_bug53046.result, innodb_bug53046.test:
+	Fix Bug#53046 dict_update_statistics_low can still be run
+	concurrently on same table
+
+2010-11-02	The InnoDB Team
+
+	* row/row0sel.c:
+	Fix Bug#57799 READ UNCOMMITTED access failure of off-page
+	DYNAMIC or COMPRESSED columns again
+
+2010-10-24	The InnoDB Team
+
+	* row/row0mysql.c
+	Fix Bug#57700 Latching order violation in
+	row_truncate_table_for_mysql()
+
+2010-10-20	The InnoDB Team
+
+	* dict/dict0load.c
+	Fix Bug#57616 Sig 11 in dict_load_table() when failed to load
+	index or foreign key
+
+2010-10-19	The InnoDB Team
+
+	* btr/btr0cur.c, buf/buf0buf.c, buf/buf0flu.c, handler/ha_innodb.cc,
+	ibuf/ibuf0ibuf.c, include/btr0cur.h, include/buf0flu.h,
+	include/ibuf0ibuf.h, include/row0mysql.h,
+	row/row0mysql.c, row/row0sel.c,
+	innodb_bug56680.test, innodb_bug56680.result:
+	Fix Bug#56680 InnoDB may return wrong results from a
+	case-insensitive covering index
+
+2010-10-18	The InnoDB Team
+
+	* handler/ha_innodb.cc, handler/ha_innodb.h, innodb_bug57252.result,
+	innodb_bug57252.test:
+	Fix Bug#57252 disabling innobase_stats_on_metadata disables ANALYZE
+
+2010-10-14	The InnoDB Team
+
+	* handler/ha_innodb.cc, innodb_bug56143.result, innodb_bug56143.test:
+	Fix Bug#56143 too many foreign keys causes output of show create
+	table to become invalid
+
+2010-10-14	The InnoDB Team
+
+	* srv/srv0start.c:
+	Fix Bug#57397 io_handler_thread() will never cleanup
+
 2010-10-11	The InnoDB Team
+
 	* row/row0sel.c
 	Fix Bug #57345 btr_pcur_store_position abort for load with
 	concurrent lock/unlock tables

+2010-10-11	The InnoDB Team
+
+	* row/row0mysql.c, innodb_bug56947.result, innodb_bug56947.test:
+	Fix Bug #56947 InnoDB leaks memory when failing to create a table
+
 2010-10-06	The InnoDB Team
+
 	* row/row0mysql.c, innodb_bug57255.result, innodb_bug57255.test
-	Fix Bug #Cascade Delete results in "Got error -1 from storage engine"
- 
+	Fix Bug #57255 Cascade Delete results in "Got error -1 from
+	storage engine"
+
 2010-09-27	The InnoDB Team

 	* row/row0sel.c, innodb_bug56716.result, innodb_bug56716.test:
-	Fix Bug #56716 InnoDB locks a record gap without locking the table
+	Fix Bug#56716 InnoDB locks a record gap without locking the table

 2010-09-06	The InnoDB Team
-	* dict/dict0load.c, innodb_bug53756.test innodb_bug53756.result
-	Fix Bug #53756 	ALTER TABLE ADD PRIMARY KEY affects crash recovery
+
+	* dict/dict0load.c, innodb_bug53756.test innodb_bug53756.result:
+	Fix Bug#53756 ALTER TABLE ADD PRIMARY KEY affects crash recovery

 2010-08-24	The InnoDB Team

 	* handler/ha_innodb.c, dict/dict0dict.c:
-	Fix Bug #55832 selects crash too easily when innodb_force_recovery>3
+	Fix Bug#55832 selects crash too easily when innodb_force_recovery>3

 2010-08-03	The InnoDB Team

 	* include/dict0dict.h, include/dict0dict.ic, row/row0mysql.c:
-	Fix bug #54678, InnoDB, TRUNCATE, ALTER, I_S SELECT, crash or deadlock
+	Fix Bug#54678 InnoDB, TRUNCATE, ALTER, I_S SELECT, crash or deadlock

 2010-08-03	The InnoDB Team

@ -37,13 +128,13 @@
 2010-08-03	The InnoDB Team

 	* include/ut0mem.h, ut/ut0mem.c:
-	Fix Bug #55627 segv in ut_free pars_lexer_close innobase_shutdown
+	Fix Bug#55627 segv in ut_free pars_lexer_close innobase_shutdown
 	innodb-use-sys-malloc=0

 2010-08-01	The InnoDB Team

-	* handler/ha_innodb.cc
-	Fix Bug #55382 Assignment with SELECT expressions takes unexpected
+	* handler/ha_innodb.cc:
+	Fix Bug#55382 Assignment with SELECT expressions takes unexpected
 	S locks in READ COMMITTED

 2010-07-27	The InnoDB Team
@ -65,8 +156,8 @@

 2010-06-29	The InnoDB Team

-	* btr/btr0cur.c, include/btr0cur.h,
-	include/row0mysql.h, row/row0merge.c, row/row0sel.c:
+	* btr/btr0cur.c, include/btr0cur.h, include/row0mysql.h,
+	row/row0merge.c, row/row0sel.c:
 	Fix Bug#54358 READ UNCOMMITTED access failure of off-page DYNAMIC
 	or COMPRESSED columns

@ -98,7 +189,7 @@

 	* dict/dict0load.c, fil/fil0fil.c:
 	Fix Bug#54658: InnoDB: Warning: allocated tablespace %lu,
-	old maximum was 0 (introduced in Bug #53578 fix)
+	old maximum was 0 (introduced in Bug#53578 fix)

 2010-06-16	The InnoDB Team

--- a/Makefile.in
+++ b/Makefile.in
@ -529,8 +529,6 @@ plugin_ftexample_shared_target = @plugin_ftexample_shared_target@
 plugin_ftexample_static_target = @plugin_ftexample_static_target@
 plugin_heap_shared_target = @plugin_heap_shared_target@
 plugin_heap_static_target = @plugin_heap_static_target@
-plugin_ibmdb2i_shared_target = @plugin_ibmdb2i_shared_target@
-plugin_ibmdb2i_static_target = @plugin_ibmdb2i_static_target@
 plugin_innobase_shared_target = @plugin_innobase_shared_target@
 plugin_innobase_static_target = @plugin_innobase_static_target@
 plugin_innodb_plugin_shared_target = @plugin_innodb_plugin_shared_target@
@ -546,8 +544,6 @@ plugin_partition_static_target = @plugin_partition_static_target@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-pstack_dir = @pstack_dir@
-pstack_libs = @pstack_libs@
 readline_basedir = @readline_basedir@
 readline_dir = @readline_dir@
 readline_h_ln_cmd = @readline_h_ln_cmd@
--- a/btr/btr0cur.c
+++ b/btr/btr0cur.c
@ -1124,7 +1124,7 @@ btr_cur_ins_lock_and_undo(
 				not zero, the parameters index and thr
 				should be specified */
 	btr_cur_t*	cursor,	/*!< in: cursor on page after which to insert */
-	const dtuple_t*	entry,	/*!< in: entry to insert */
+	dtuple_t*	entry,	/*!< in/out: entry to insert */
 	que_thr_t*	thr,	/*!< in: query thread or NULL */
 	mtr_t*		mtr,	/*!< in/out: mini-transaction */
 	ibool*		inherit)/*!< out: TRUE if the inserted new record maybe
@ -1803,7 +1803,7 @@ func_exit:
 See if there is enough place in the page modification log to log
 an update-in-place.
@return	TRUE if enough place */
-static
+UNIV_INTERN
 ibool
 btr_cur_update_alloc_zip(
 /*=====================*/
@ -3582,11 +3582,9 @@ btr_estimate_number_of_different_key_vals(
 		effective_pages = btr_estimate_n_pages_not_null(index, 1 /*k*/, first_rec_path);

 		if (!effective_pages) {
-			dict_index_stat_mutex_enter(index);
 			for (j = 0; j <= n_cols; j++) {
 				index->stat_n_diff_key_vals[j] = (ib_int64_t)index->stat_n_leaf_pages;
 			}
-			dict_index_stat_mutex_exit(index);
 			return;
 		} else if (effective_pages > index->stat_n_leaf_pages) {
 			effective_pages = index->stat_n_leaf_pages;
@ -3728,8 +3726,6 @@ btr_estimate_number_of_different_key_vals(
 	also the pages used for external storage of fields (those pages are
 	included in index->stat_n_leaf_pages) */

-	dict_index_stat_mutex_enter(index);
-
 	for (j = 0; j <= n_cols; j++) {
 		index->stat_n_diff_key_vals[j]
 			= ((n_diff[j]
@ -3768,8 +3764,6 @@ btr_estimate_number_of_different_key_vals(
 		}
 	}

-	dict_index_stat_mutex_exit(index);
-
 	mem_free(n_diff);
 	if (UNIV_LIKELY_NULL(heap)) {
 		mem_heap_free(heap);
@ -4182,7 +4176,7 @@ Stores the fields in big_rec_vec to the tablespace and puts pointers to
 them in rec.  The extern flags in rec will have to be set beforehand.
 The fields are stored on pages allocated from leaf node
 file segment of the index tree.
-@return	DB_SUCCESS or error */
+@return	DB_SUCCESS or DB_OUT_OF_FILE_SPACE */
 UNIV_INTERN
 ulint
 btr_store_big_rec_extern_fields(
--- a/buf/buf0buf.c
+++ b/buf/buf0buf.c
@ -53,6 +53,10 @@ Created 11/5/1995 Heikki Tuuri
 #include "page0zip.h"
 #include "trx0trx.h"
 #include "srv0start.h"
+#include "que0que.h"
+#include "read0read.h"
+#include "row0row.h"
+#include "ha_prototypes.h"

 /* prototypes for new functions added to ha_innodb.cc */
 trx_t* innobase_get_trx();
@ -310,6 +314,30 @@ read-ahead or flush occurs */
 UNIV_INTERN ibool		buf_debug_prints = FALSE;
 #endif /* UNIV_DEBUG */

+/* Buffer pool shared memory segment information */
+typedef	struct buf_shm_info_struct	buf_shm_info_t;
+
+struct buf_shm_info_struct {
+	char	head_str[8];
+	ulint	binary_id;
+	ibool	is_new;		/* during initializing */
+	ibool	clean;		/* clean shutdowned and free */
+	ibool	reusable;	/* reusable */
+	ulint	buf_pool_size;	/* backup value */
+	ulint	page_size;	/* backup value */
+	ulint	frame_offset;	/* offset of the first frame based on chunk->mem */
+	ulint	zip_hash_offset;
+	ulint	zip_hash_n;
+
+	ulint	checksum;
+
+	buf_pool_t	buf_pool_backup;
+	buf_chunk_t	chunk_backup;
+
+	ib_uint64_t	dummy;
+};
+
+#define BUF_SHM_INFO_HEAD "XTRA_SHM"
 #endif /* !UNIV_HOTBACKUP */

 /********************************************************************//**
@ -756,6 +784,45 @@ buf_block_init(
 #endif /* UNIV_SYNC_DEBUG */
 }

+static
+void
+buf_block_reuse(
+/*============*/
+	buf_block_t*	block,
+	ptrdiff_t	frame_offset)
+{
+	/* block_init */
+	block->frame += frame_offset;
+
+	UNIV_MEM_DESC(block->frame, UNIV_PAGE_SIZE, block);
+
+	block->index = NULL;
+
+#ifdef UNIV_DEBUG
+	/* recreate later */
+	block->page.in_page_hash = FALSE;
+	block->page.in_zip_hash = FALSE;
+#endif /* UNIV_DEBUG */
+
+#if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
+	block->n_pointers = 0;
+#endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
+
+	if (block->page.zip.data)
+		block->page.zip.data += frame_offset;
+
+	block->is_hashed = FALSE;
+
+	mutex_create(&block->mutex, SYNC_BUF_BLOCK);
+
+	rw_lock_create(&block->lock, SYNC_LEVEL_VARYING);
+	ut_ad(rw_lock_validate(&(block->lock)));
+
+#ifdef UNIV_SYNC_DEBUG
+	rw_lock_create(&block->debug_latch, SYNC_NO_ORDER_CHECK);
+#endif /* UNIV_SYNC_DEBUG */
+}
+
 /********************************************************************//**
 Allocates a chunk of buffer frames.
@return	chunk, or NULL on failure */
@ -768,26 +835,188 @@ buf_chunk_init(
 {
 	buf_block_t*	block;
 	byte*		frame;
+	ulint		zip_hash_n = 0;
+	ulint		zip_hash_mem_size = 0;
+	hash_table_t*	zip_hash_tmp = NULL;
 	ulint		i;
+	buf_shm_info_t*	shm_info = NULL;

 	/* Round down to a multiple of page size,
 	although it already should be. */
 	mem_size = ut_2pow_round(mem_size, UNIV_PAGE_SIZE);
+
+	srv_buffer_pool_shm_is_reused = FALSE;
+
+	if (srv_buffer_pool_shm_key) {
+		/* zip_hash size */
+		zip_hash_n = (mem_size / UNIV_PAGE_SIZE) * 2;
+		zip_hash_mem_size = ut_2pow_round(hash_create_needed(zip_hash_n)
+						  + (UNIV_PAGE_SIZE - 1), UNIV_PAGE_SIZE);
+	}
+
 	/* Reserve space for the block descriptors. */
 	mem_size += ut_2pow_round((mem_size / UNIV_PAGE_SIZE) * (sizeof *block)
 				  + (UNIV_PAGE_SIZE - 1), UNIV_PAGE_SIZE);
+	if (srv_buffer_pool_shm_key) {
+		 mem_size += ut_2pow_round(sizeof(buf_shm_info_t)
+					   + (UNIV_PAGE_SIZE - 1), UNIV_PAGE_SIZE);
+		 mem_size += zip_hash_mem_size;
+	}

 	chunk->mem_size = mem_size;
+
+	if (srv_buffer_pool_shm_key) {
+		ulint	binary_id;
+		ibool	is_new;
+
+		ut_a(buf_pool->n_chunks == 1);
+
+		fprintf(stderr,
+		"InnoDB: Warning: The innodb_buffer_pool_shm_key option has been specified.\n"
+		"InnoDB: Do not change the following between restarts of the server while this option is being used:\n"
+		"InnoDB:   * the mysqld executable between restarts of the server.\n"
+		"InnoDB:   * the value of innodb_buffer_pool_size.\n"
+		"InnoDB:   * the value of innodb_page_size.\n"
+		"InnoDB:   * datafiles created by InnoDB during this session.\n"
+		"InnoDB: Otherwise, data corruption in datafiles may result.\n");
+
+		/* FIXME: This is vague id still */
+		binary_id = (ulint) ((byte*)mtr_commit - (byte*)btr_root_get)
+			  + (ulint) ((byte*)os_get_os_version - (byte*)buf_calc_page_new_checksum)
+			  + (ulint) ((byte*)page_dir_find_owner_slot - (byte*)dfield_data_is_binary_equal)
+			  + (ulint) ((byte*)que_graph_publish - (byte*)dict_casedn_str)
+			  + (ulint) ((byte*)read_view_oldest_copy_or_open_new - (byte*)fil_space_get_version)
+			  + (ulint) ((byte*)rec_get_n_extern_new - (byte*)fsp_get_size_low)
+			  + (ulint) ((byte*)row_get_trx_id_offset - (byte*)ha_create_func)
+			  + (ulint) ((byte*)srv_set_io_thread_op_info - (byte*)thd_is_replication_slave_thread)
+			  + (ulint) ((byte*)mutex_create_func - (byte*)ibuf_inside)
+			  + (ulint) ((byte*)trx_set_detailed_error - (byte*)lock_check_trx_id_sanity)
+			  + (ulint) ((byte*)ut_time - (byte*)mem_heap_strdup);
+
+		chunk->mem = os_shm_alloc(&chunk->mem_size, srv_buffer_pool_shm_key, &is_new);
+
+		if (UNIV_UNLIKELY(chunk->mem == NULL)) {
+			return(NULL);
+		}
+init_again:
+#ifdef UNIV_SET_MEM_TO_ZERO
+		if (is_new) {
+			memset(chunk->mem, '\0', chunk->mem_size);
+		}
+#endif
+		/* for ut_fold_binary_32(), these values should be 32-bit aligned */
+		ut_a(sizeof(buf_shm_info_t) % 4 == 0);
+		ut_a((ulint)chunk->mem % 4 == 0);
+		ut_a(chunk->mem_size % 4 == 0);
+
+		shm_info = chunk->mem;
+
+		zip_hash_tmp = (hash_table_t*)((byte*)chunk->mem + chunk->mem_size - zip_hash_mem_size);
+
+		if (is_new) {
+			strncpy(shm_info->head_str, BUF_SHM_INFO_HEAD, 8);
+			shm_info->binary_id = binary_id;
+			shm_info->is_new = TRUE;	/* changed to FALSE when the initialization is finished */
+			shm_info->clean = FALSE;	/* changed to TRUE when free the segment. */
+			shm_info->reusable = FALSE;	/* changed to TRUE when validation is finished. */
+			shm_info->buf_pool_size = srv_buf_pool_size;
+			shm_info->page_size = srv_page_size;
+			shm_info->zip_hash_offset = chunk->mem_size - zip_hash_mem_size;
+			shm_info->zip_hash_n = zip_hash_n;
+		} else {
+			ulint	checksum;
+
+			if (strncmp(shm_info->head_str, BUF_SHM_INFO_HEAD, 8)) {
+				fprintf(stderr,
+				"InnoDB: Error: The shared memory segment seems not to be for buffer pool.\n");
+				return(NULL);
+			}
+			if (shm_info->binary_id != binary_id) {
+				fprintf(stderr,
+				"InnoDB: Error: The shared memory segment seems not to be for this binary.\n");
+				return(NULL);
+			}
+			if (shm_info->is_new) {
+				fprintf(stderr,
+				"InnoDB: Error: The shared memory was not initialized yet.\n");
+				return(NULL);
+			}
+			if (shm_info->buf_pool_size != srv_buf_pool_size) {
+				fprintf(stderr,
+				"InnoDB: Error: srv_buf_pool_size is different (shm=%lu current=%lu).\n",
+				shm_info->buf_pool_size, srv_buf_pool_size);
+				return(NULL);
+			}
+			if (shm_info->page_size != srv_page_size) {
+				fprintf(stderr,
+				"InnoDB: Error: srv_page_size is different (shm=%lu current=%lu).\n",
+				shm_info->page_size, srv_page_size);
+				return(NULL);
+			}
+			if (!shm_info->reusable) {
+				fprintf(stderr,
+				"InnoDB: Warning: The shared memory has unrecoverable contents.\n"
+				"InnoDB: The shared memory segment is initialized.\n");
+				is_new = TRUE;
+				goto init_again;
+			}
+			if (!shm_info->clean) {
+				fprintf(stderr,
+				"InnoDB: Warning: The shared memory was not shut down cleanly.\n"
+				"InnoDB: The shared memory segment is initialized.\n");
+				is_new = TRUE;
+				goto init_again;
+			}
+
+			ut_a(shm_info->zip_hash_offset == chunk->mem_size - zip_hash_mem_size);
+			ut_a(shm_info->zip_hash_n == zip_hash_n);
+
+			/* check checksum */
+			if (srv_buffer_pool_shm_checksum) {
+				checksum = ut_fold_binary_32((byte*)chunk->mem + sizeof(buf_shm_info_t),
+							     chunk->mem_size - sizeof(buf_shm_info_t));
+			} else {
+				checksum = BUF_NO_CHECKSUM_MAGIC;
+			}
+
+			if (shm_info->checksum != BUF_NO_CHECKSUM_MAGIC
+			    && shm_info->checksum != checksum) {
+				fprintf(stderr,
+				"InnoDB: Error: checksum of the shared memory is not match. "
+				"(stored=%lu calculated=%lu)\n",
+				shm_info->checksum, checksum);
+				return(NULL);
+			}
+
+			/* flag to use the segment. */
+			shm_info->clean = FALSE;	/* changed to TRUE when free the segment. */
+		}
+
+		/* init zip_hash contents */
+		if (is_new) {
+			hash_create_init(zip_hash_tmp, zip_hash_n);
+		} else {
+			/* adjust offset is done later */
+			hash_create_reuse(zip_hash_tmp);
+
+			srv_buffer_pool_shm_is_reused = TRUE;
+		}
+	} else {
 	chunk->mem = os_mem_alloc_large(&chunk->mem_size);

 	if (UNIV_UNLIKELY(chunk->mem == NULL)) {

 		return(NULL);
 	}
+	}

 	/* Allocate the block descriptors from
 	the start of the memory block. */
+	if (srv_buffer_pool_shm_key) {
+		chunk->blocks = (buf_block_t*)((byte*)chunk->mem + sizeof(buf_shm_info_t));
+	} else {
 	chunk->blocks = chunk->mem;
+	}

 	/* Align a pointer to the first frame.  Note that when
 	os_large_page_size is smaller than UNIV_PAGE_SIZE,
@ -795,8 +1024,13 @@ buf_chunk_init(
 	it is bigger, we may allocate more blocks than requested. */

 	frame = ut_align(chunk->mem, UNIV_PAGE_SIZE);
+	if (srv_buffer_pool_shm_key) {
+		/* reserve zip_hash space and always -1 for reproductibity */
+		chunk->size = (chunk->mem_size - zip_hash_mem_size) / UNIV_PAGE_SIZE - 1;
+	} else {
 	chunk->size = chunk->mem_size / UNIV_PAGE_SIZE
 		- (frame != chunk->mem);
+	}

 	/* Subtract the space needed for block descriptors. */
 	{
@ -810,6 +1044,98 @@ buf_chunk_init(
 		chunk->size = size;
 	}

+	if (shm_info && !(shm_info->is_new)) {
+		/* convert the shared memory segment for reuse */
+		ptrdiff_t	phys_offset;
+		ptrdiff_t	logi_offset;
+		ptrdiff_t	blocks_offset;
+		void*		previous_frame_address;
+
+		if (chunk->size < shm_info->chunk_backup.size) {
+			fprintf(stderr,
+			"InnoDB: Error: The buffer pool became smaller because of allocated address.\n"
+			"InnoDB: Retrying may avoid this situation.\n");
+			shm_info->clean = TRUE; /* release the flag for retrying */
+			return(NULL);
+		}
+
+		chunk->size = shm_info->chunk_backup.size;
+		phys_offset = frame - ((byte*)chunk->mem + shm_info->frame_offset);
+		logi_offset = frame - chunk->blocks[0].frame;
+		previous_frame_address = chunk->blocks[0].frame;
+		blocks_offset = (byte*)chunk->blocks - (byte*)shm_info->chunk_backup.blocks;
+
+		if (phys_offset || logi_offset || blocks_offset) {
+			fprintf(stderr,
+			"InnoDB: Buffer pool in the shared memory segment should be converted.\n"
+			"InnoDB: Previous frames in address      : %p\n"
+			"InnoDB: Previous frames were located    : %p\n"
+			"InnoDB: Current frames should be located: %p\n"
+			"InnoDB: Pysical offset                  : %ld (%#lx)\n"
+			"InnoDB: Logical offset (frames)         : %ld (%#lx)\n"
+			"InnoDB: Logical offset (blocks)         : %ld (%#lx)\n",
+				(byte*)chunk->mem + shm_info->frame_offset,
+				chunk->blocks[0].frame, frame,
+				phys_offset, phys_offset, logi_offset, logi_offset,
+				blocks_offset, blocks_offset);
+		} else {
+			fprintf(stderr,
+			"InnoDB: Buffer pool in the shared memory segment can be used as it is.\n");
+		}
+
+		if (phys_offset) {
+			fprintf(stderr,
+			"InnoDB: Aligning physical offset...");
+
+			memmove(frame, (byte*)chunk->mem + shm_info->frame_offset,
+				chunk->size * UNIV_PAGE_SIZE);
+
+			fprintf(stderr,
+			" Done.\n");
+		}
+
+		/* buf_block_t */
+		block = chunk->blocks;
+		for (i = chunk->size; i--; ) {
+			buf_block_reuse(block, logi_offset);
+			block++;
+		}
+
+		if (logi_offset || blocks_offset) {
+			fprintf(stderr,
+			"InnoDB: Aligning logical offset...");
+
+
+			/* buf_pool_t buf_pool_backup */
+			UT_LIST_OFFSET(flush_list, buf_page_t, shm_info->buf_pool_backup.flush_list,
+					previous_frame_address, logi_offset, blocks_offset);
+			UT_LIST_OFFSET(free, buf_page_t, shm_info->buf_pool_backup.free,
+					previous_frame_address, logi_offset, blocks_offset);
+			UT_LIST_OFFSET(LRU, buf_page_t, shm_info->buf_pool_backup.LRU,
+					previous_frame_address, logi_offset, blocks_offset);
+			if (shm_info->buf_pool_backup.LRU_old)
+				shm_info->buf_pool_backup.LRU_old =
+					(buf_page_t*)((byte*)(shm_info->buf_pool_backup.LRU_old)
+						+ (((void*)shm_info->buf_pool_backup.LRU_old > previous_frame_address)
+						  ? logi_offset : blocks_offset));
+
+			UT_LIST_OFFSET(unzip_LRU, buf_block_t, shm_info->buf_pool_backup.unzip_LRU,
+					previous_frame_address, logi_offset, blocks_offset);
+
+			UT_LIST_OFFSET(zip_list, buf_page_t, shm_info->buf_pool_backup.zip_clean,
+					previous_frame_address, logi_offset, blocks_offset);
+			for (i = 0; i < BUF_BUDDY_SIZES_MAX; i++) {
+				UT_LIST_OFFSET(zip_list, buf_page_t, shm_info->buf_pool_backup.zip_free[i],
+					previous_frame_address, logi_offset, blocks_offset);
+			}
+
+			HASH_OFFSET(zip_hash_tmp, buf_page_t, hash,
+					previous_frame_address, logi_offset, blocks_offset);
+
+			fprintf(stderr,
+			" Done.\n");
+		}
+	} else {
 	/* Init block structs and assign frames for them. Then we
 	assign the frames to the first blocks (we already mapped the
 	memory above). */
@ -833,6 +1159,11 @@ buf_chunk_init(
 		block++;
 		frame += UNIV_PAGE_SIZE;
 	}
+	}
+
+	if (shm_info) {
+		shm_info->frame_offset = chunk->blocks[0].frame - (byte*)chunk->mem;
+	}

 	return(chunk);
 }
@ -1014,6 +1345,8 @@ buf_chunk_free(
 		UNIV_MEM_UNDESC(block);
 	}

+	ut_a(!srv_buffer_pool_shm_key);
+
 	os_mem_free_large(chunk->mem, chunk->mem_size);
 }

@ -1063,7 +1396,10 @@ buf_pool_init(void)
 	srv_buf_pool_curr_size = buf_pool->curr_size * UNIV_PAGE_SIZE;

 	buf_pool->page_hash = hash_create(2 * buf_pool->curr_size);
+	/* zip_hash is allocated to shm when srv_buffer_pool_shm_key is enabled */
+	if (!srv_buffer_pool_shm_key) {
 	buf_pool->zip_hash = hash_create(2 * buf_pool->curr_size);
+	}

 	buf_pool->last_printout_time = time(NULL);

@ -1078,6 +1414,86 @@ buf_pool_init(void)
 	--------------------------- */
 	/* All fields are initialized by mem_zalloc(). */

+	if (srv_buffer_pool_shm_key) {
+		buf_shm_info_t*	shm_info;
+
+		ut_a((byte*)chunk->blocks == (byte*)chunk->mem + sizeof(buf_shm_info_t));
+		shm_info = chunk->mem;
+
+		buf_pool->zip_hash = (hash_table_t*)((byte*)chunk->mem + shm_info->zip_hash_offset);
+
+		if(shm_info->is_new) {
+			shm_info->is_new = FALSE; /* initialization was finished */
+		} else {
+			buf_block_t*	block = chunk->blocks;
+			buf_page_t*	b;
+
+			/* shm_info->buf_pool_backup should be converted */
+			/* at buf_chunk_init(). So copy simply. */
+			buf_pool->flush_list 		= shm_info->buf_pool_backup.flush_list;
+			buf_pool->freed_page_clock 	= shm_info->buf_pool_backup.freed_page_clock;
+			buf_pool->free			= shm_info->buf_pool_backup.free;
+			buf_pool->LRU			= shm_info->buf_pool_backup.LRU;
+			buf_pool->LRU_old		= shm_info->buf_pool_backup.LRU_old;
+			buf_pool->LRU_old_len		= shm_info->buf_pool_backup.LRU_old_len;
+			buf_pool->unzip_LRU		= shm_info->buf_pool_backup.unzip_LRU;
+			buf_pool->zip_clean		= shm_info->buf_pool_backup.zip_clean;
+			for (i = 0; i < BUF_BUDDY_SIZES_MAX; i++) {
+				buf_pool->zip_free[i]	= shm_info->buf_pool_backup.zip_free[i];
+			}
+
+			for (i = 0; i < chunk->size; i++, block++) {
+				if (buf_block_get_state(block)
+				    == BUF_BLOCK_FILE_PAGE) {
+					ut_d(block->page.in_page_hash = TRUE);
+					HASH_INSERT(buf_page_t, hash, buf_pool->page_hash,
+						    buf_page_address_fold(
+							    block->page.space,
+							    block->page.offset),
+						    &block->page);
+				}
+			}
+
+			for (b = UT_LIST_GET_FIRST(buf_pool->zip_clean); b;
+			     b = UT_LIST_GET_NEXT(zip_list, b)) {
+				ut_ad(!b->in_flush_list);
+				ut_ad(b->in_LRU_list);
+
+				ut_d(b->in_page_hash = TRUE);
+				HASH_INSERT(buf_page_t, hash, buf_pool->page_hash,
+					    buf_page_address_fold(b->space, b->offset), b);
+			}
+
+			for (b = UT_LIST_GET_FIRST(buf_pool->flush_list); b;
+			     b = UT_LIST_GET_NEXT(flush_list, b)) {
+				ut_ad(b->in_flush_list);
+				ut_ad(b->in_LRU_list);
+
+				switch (buf_page_get_state(b)) {
+				case BUF_BLOCK_ZIP_DIRTY:
+					ut_d(b->in_page_hash = TRUE);
+					HASH_INSERT(buf_page_t, hash, buf_pool->page_hash,
+						    buf_page_address_fold(b->space,
+							    		  b->offset), b);
+					break;
+				case BUF_BLOCK_FILE_PAGE:
+					/* uncompressed page */
+					break;
+				case BUF_BLOCK_ZIP_FREE:
+				case BUF_BLOCK_ZIP_PAGE:
+				case BUF_BLOCK_NOT_USED:
+				case BUF_BLOCK_READY_FOR_USE:
+				case BUF_BLOCK_MEMORY:
+				case BUF_BLOCK_REMOVE_HASH:
+					ut_error;
+					break;
+				}
+			}
+
+
+		}
+	}
+
 	mutex_exit(&LRU_list_mutex);
 	rw_lock_x_unlock(&page_hash_latch);
 	buf_pool_mutex_exit();
@ -1102,6 +1518,34 @@ buf_pool_free(void)
 	buf_chunk_t*	chunk;
 	buf_chunk_t*	chunks;

+	if (srv_buffer_pool_shm_key) {
+		buf_shm_info_t*	shm_info;
+
+		ut_a(buf_pool->n_chunks == 1);
+
+		chunk = buf_pool->chunks;
+		shm_info = chunk->mem;
+		ut_a((byte*)chunk->blocks == (byte*)chunk->mem + sizeof(buf_shm_info_t));
+
+		/* validation the shared memory segment doesn't have unrecoverable contents. */
+		/* Currently, validation became not needed */
+		shm_info->reusable = TRUE;
+
+		memcpy(&(shm_info->buf_pool_backup), buf_pool, sizeof(buf_pool_t));
+		memcpy(&(shm_info->chunk_backup), chunk, sizeof(buf_chunk_t));
+
+		if (srv_fast_shutdown < 2) {
+			if (srv_buffer_pool_shm_checksum) {
+				shm_info->checksum = ut_fold_binary_32((byte*)chunk->mem + sizeof(buf_shm_info_t),
+								       chunk->mem_size - sizeof(buf_shm_info_t));
+			} else {
+				shm_info->checksum = BUF_NO_CHECKSUM_MAGIC;
+			}
+			shm_info->clean = TRUE;
+		}
+
+		os_shm_free(chunk->mem, chunk->mem_size);
+	} else {
 	chunks = buf_pool->chunks;
 	chunk = chunks + buf_pool->n_chunks;

@ -1110,10 +1554,13 @@ buf_pool_free(void)
 		would fail at shutdown. */
 		os_mem_free_large(chunk->mem, chunk->mem_size);
 	}
+	}

 	mem_free(buf_pool->chunks);
 	hash_table_free(buf_pool->page_hash);
+	if (!srv_buffer_pool_shm_key) {
 	hash_table_free(buf_pool->zip_hash);
+	}
 	mem_free(buf_pool);
 	buf_pool = NULL;
 }
@ -1308,6 +1755,11 @@ try_again:
 	//buf_pool_mutex_enter();
 	mutex_enter(&LRU_list_mutex);

+	if (srv_buffer_pool_shm_key) {
+		/* Cannot support shrink */
+		goto func_done;
+	}
+
 shrink_again:
 	if (buf_pool->n_chunks <= 1) {

@ -1551,6 +2003,11 @@ void
 buf_pool_resize(void)
 /*=================*/
 {
+	if (srv_buffer_pool_shm_key) {
+		/* Cannot support resize */
+		return;
+	}
+
 	//buf_pool_mutex_enter();
 	mutex_enter(&LRU_list_mutex);

@ -2511,6 +2968,30 @@ wait_until_unfixed:
 	bytes. */
 	UNIV_MEM_ASSERT_RW(&block->page, sizeof block->page);
 #endif
+#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+	if (mode == BUF_GET_IF_IN_POOL && ibuf_debug) {
+		/* Try to evict the block from the buffer pool, to use the
+		insert buffer as much as possible. */
+
+		if (buf_LRU_free_block(&block->page, TRUE, NULL)
+		    == BUF_LRU_FREED) {
+			buf_pool_mutex_exit();
+			mutex_exit(&block->mutex);
+			fprintf(stderr,
+				"innodb_change_buffering_debug evict %u %u\n",
+				(unsigned) space, (unsigned) offset);
+			return(NULL);
+		} else if (buf_flush_page_try(block)) {
+			fprintf(stderr,
+				"innodb_change_buffering_debug flush %u %u\n",
+				(unsigned) space, (unsigned) offset);
+			guess = block;
+			goto loop;
+		}
+
+		/* Failed to evict the page; change it directly */
+	}
+#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */

 	buf_block_buf_fix_inc(block, file, line);

--- a/buf/buf0flu.c
+++ b/buf/buf0flu.c
@ -1064,6 +1064,82 @@ buf_flush_write_block_low(
 	}
 }

+# if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+/********************************************************************//**
+Writes a flushable page asynchronously from the buffer pool to a file.
+NOTE: buf_pool_mutex and block->mutex must be held upon entering this
+function, and they will be released by this function after flushing.
+This is loosely based on buf_flush_batch() and buf_flush_page().
+@return TRUE if the page was flushed and the mutexes released */
+UNIV_INTERN
+ibool
+buf_flush_page_try(
+/*===============*/
+	buf_block_t*	block)		/*!< in/out: buffer control block */
+{
+	ut_ad(buf_pool_mutex_own());
+	ut_ad(buf_block_get_state(block) == BUF_BLOCK_FILE_PAGE);
+	ut_ad(mutex_own(&block->mutex));
+
+	if (!buf_flush_ready_for_flush(&block->page, BUF_FLUSH_LRU)) {
+		return(FALSE);
+	}
+
+	if (buf_pool->n_flush[BUF_FLUSH_LRU] > 0
+	    || buf_pool->init_flush[BUF_FLUSH_LRU]) {
+		/* There is already a flush batch of the same type running */
+		return(FALSE);
+	}
+
+	buf_pool->init_flush[BUF_FLUSH_LRU] = TRUE;
+
+	buf_page_set_io_fix(&block->page, BUF_IO_WRITE);
+
+	buf_page_set_flush_type(&block->page, BUF_FLUSH_LRU);
+
+	if (buf_pool->n_flush[BUF_FLUSH_LRU]++ == 0) {
+
+		os_event_reset(buf_pool->no_flush[BUF_FLUSH_LRU]);
+	}
+
+	/* VERY IMPORTANT:
+	Because any thread may call the LRU flush, even when owning
+	locks on pages, to avoid deadlocks, we must make sure that the
+	s-lock is acquired on the page without waiting: this is
+	accomplished because buf_flush_ready_for_flush() must hold,
+	and that requires the page not to be bufferfixed. */
+
+	rw_lock_s_lock_gen(&block->lock, BUF_IO_WRITE);
+
+	/* Note that the s-latch is acquired before releasing the
+	buf_pool mutex: this ensures that the latch is acquired
+	immediately. */
+
+	mutex_exit(&block->mutex);
+	buf_pool_mutex_exit();
+
+	/* Even though block is not protected by any mutex at this
+	point, it is safe to access block, because it is io_fixed and
+	oldest_modification != 0.  Thus, it cannot be relocated in the
+	buffer pool or removed from flush_list or LRU_list. */
+
+	buf_flush_write_block_low(&block->page);
+
+	buf_pool_mutex_enter();
+	buf_pool->init_flush[BUF_FLUSH_LRU] = FALSE;
+
+	if (buf_pool->n_flush[BUF_FLUSH_LRU] == 0) {
+		/* The running flush batch has ended */
+		os_event_set(buf_pool->no_flush[BUF_FLUSH_LRU]);
+	}
+
+	buf_pool_mutex_exit();
+	buf_flush_buffered_writes();
+
+	return(TRUE);
+}
+# endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
+
 /********************************************************************//**
 Writes a flushable page asynchronously from the buffer pool to a file.
 NOTE: in simulated aio we must call
@ -1735,9 +1811,9 @@ buf_flush_validate_low(void)
 		ut_a(om > 0);

 		if (UNIV_LIKELY_NULL(buf_pool->flush_rbt)) {
+			buf_page_t* rpage;
 			ut_a(rnode);
-			buf_page_t* rpage = *rbt_value(buf_page_t*,
-						       rnode);
+			rpage = *rbt_value(buf_page_t*, rnode);
 			ut_a(rpage);
 			ut_a(rpage == bpage);
 			rnode = rbt_next(buf_pool->flush_rbt, rnode);
--- a/buf/buf0lru.c
+++ b/buf/buf0lru.c
@ -2265,7 +2265,7 @@ buf_LRU_file_restore(void)
 	ulint		req = 0;
 	ibool		terminated = FALSE;
 	ibool		ret = FALSE;
-	dump_record_t*	records;
+	dump_record_t*	records = NULL;
 	ulint		size;
 	ulint		size_high;
 	ulint		length;
--- a/dict/dict0crea.c
+++ b/dict/dict0crea.c
@ -894,7 +894,7 @@ dict_truncate_index_tree(
 	appropriate field in the SYS_INDEXES record: this mini-transaction
 	marks the B-tree totally truncated */

-	btr_page_get(space, zip_size, root_page_no, RW_X_LATCH, mtr);
+	btr_block_get(space, zip_size, root_page_no, RW_X_LATCH, mtr);

 	btr_free_root(space, zip_size, root_page_no, mtr);
 create:
--- a/dict/dict0dict.c
+++ b/dict/dict0dict.c
@ -81,9 +81,18 @@ UNIV_INTERN rw_lock_t	dict_operation_lock;
 /** Identifies generated InnoDB foreign key names */
 static char	dict_ibfk[] = "_ibfk_";

-/** array of mutexes protecting dict_index_t::stat_n_diff_key_vals[] */
-#define DICT_INDEX_STAT_MUTEX_SIZE	32
-static mutex_t	dict_index_stat_mutex[DICT_INDEX_STAT_MUTEX_SIZE];
+/** array of rw locks protecting
+dict_table_t::stat_initialized
+dict_table_t::stat_n_rows (*)
+dict_table_t::stat_clustered_index_size
+dict_table_t::stat_sum_of_other_index_sizes
+dict_table_t::stat_modified_counter (*)
+dict_table_t::indexes*::stat_n_diff_key_vals[]
+dict_table_t::indexes*::stat_index_size
+dict_table_t::indexes*::stat_n_leaf_pages
+(*) those are not always protected for performance reasons */
+#define DICT_TABLE_STATS_LATCHES_SIZE	64
+static rw_lock_t	dict_table_stats_latches[DICT_TABLE_STATS_LATCHES_SIZE];

 /*******************************************************************//**
 Tries to find column names for the index and sets the col field of the
@ -244,43 +253,65 @@ dict_mutex_exit_for_mysql(void)
 	mutex_exit(&(dict_sys->mutex));
 }

-/** Get the mutex that protects index->stat_n_diff_key_vals[] */
-#define GET_INDEX_STAT_MUTEX(index) \
-	(&dict_index_stat_mutex[ut_fold_dulint(index->id) \
-	 			% DICT_INDEX_STAT_MUTEX_SIZE])
+/** Get the latch that protects the stats of a given table */
+#define GET_TABLE_STATS_LATCH(table) \
+	(&dict_table_stats_latches[ut_fold_dulint(table->id) \
+				   % DICT_TABLE_STATS_LATCHES_SIZE])

 /**********************************************************************//**
-Lock the appropriate mutex to protect index->stat_n_diff_key_vals[].
-index->id is used to pick the right mutex and it should not change
-before dict_index_stat_mutex_exit() is called on this index. */
+Lock the appropriate latch to protect a given table's statistics.
+table->id is used to pick the corresponding latch from a global array of
+latches. */
 UNIV_INTERN
 void
-dict_index_stat_mutex_enter(
-/*========================*/
-	const dict_index_t*	index)	/*!< in: index */
+dict_table_stats_lock(
+/*==================*/
+	const dict_table_t*	table,		/*!< in: table */
+	ulint			latch_mode)	/*!< in: RW_S_LATCH or
+						RW_X_LATCH */
 {
-	ut_ad(index != NULL);
-	ut_ad(index->magic_n == DICT_INDEX_MAGIC_N);
-	ut_ad(index->cached);
-	ut_ad(!index->to_be_dropped);
+	ut_ad(table != NULL);
+	ut_ad(table->magic_n == DICT_TABLE_MAGIC_N);

-	mutex_enter(GET_INDEX_STAT_MUTEX(index));
+	switch (latch_mode) {
+	case RW_S_LATCH:
+		rw_lock_s_lock(GET_TABLE_STATS_LATCH(table));
+		break;
+	case RW_X_LATCH:
+		rw_lock_x_lock(GET_TABLE_STATS_LATCH(table));
+		break;
+	case RW_NO_LATCH:
+		/* fall through */
+	default:
+		ut_error;
+	}
 }

 /**********************************************************************//**
-Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */
+Unlock the latch that has been locked by dict_table_stats_lock() */
 UNIV_INTERN
 void
-dict_index_stat_mutex_exit(
-/*=======================*/
-	const dict_index_t*	index)	/*!< in: index */
+dict_table_stats_unlock(
+/*====================*/
+	const dict_table_t*	table,		/*!< in: table */
+	ulint			latch_mode)	/*!< in: RW_S_LATCH or
+						RW_X_LATCH */
 {
-	ut_ad(index != NULL);
-	ut_ad(index->magic_n == DICT_INDEX_MAGIC_N);
-	ut_ad(index->cached);
-	ut_ad(!index->to_be_dropped);
+	ut_ad(table != NULL);
+	ut_ad(table->magic_n == DICT_TABLE_MAGIC_N);

-	mutex_exit(GET_INDEX_STAT_MUTEX(index));
+	switch (latch_mode) {
+	case RW_S_LATCH:
+		rw_lock_s_unlock(GET_TABLE_STATS_LATCH(table));
+		break;
+	case RW_X_LATCH:
+		rw_lock_x_unlock(GET_TABLE_STATS_LATCH(table));
+		break;
+	case RW_NO_LATCH:
+		/* fall through */
+	default:
+		ut_error;
+	}
 }

 /********************************************************************//**
@ -671,8 +702,8 @@ dict_init(void)

 	mutex_create(&dict_foreign_err_mutex, SYNC_ANY_LATCH);

-	for (i = 0; i < DICT_INDEX_STAT_MUTEX_SIZE; i++) {
-		mutex_create(&dict_index_stat_mutex[i], SYNC_INDEX_TREE);
+	for (i = 0; i < DICT_TABLE_STATS_LATCHES_SIZE; i++) {
+		rw_lock_create(&dict_table_stats_latches[i], SYNC_INDEX_TREE);
 	}
 }

@ -704,13 +735,12 @@ dict_table_get(

 	mutex_exit(&(dict_sys->mutex));

-	if (table != NULL) {
-		if (!table->stat_initialized && !table->is_corrupt) {
-			/* If table->ibd_file_missing == TRUE, this will
-			print an error message and return without doing
-			anything. */
-			dict_update_statistics(table, FALSE);
-		}
+	if (table != NULL && !table->is_corrupt) {
+		/* If table->ibd_file_missing == TRUE, this will
+		print an error message and return without doing
+		anything. */
+		dict_update_statistics(table, TRUE /* only update stats
+				       if they have not been initialized */, FALSE);
 	}

 	return(table);
@ -4366,11 +4396,9 @@ next_rec:
 	btr_pcur_close(&pcur);
 	mtr_commit(&mtr);

-	dict_index_stat_mutex_enter(index);
 	for (i = 0; i <= n_cols; i++) {
 		index->stat_n_diff_key_vals[i] = stat_n_diff_key_vals_tmp[i];
 	}
-	dict_index_stat_mutex_exit(index);
 }
 /*===========================================*/

@ -4424,11 +4452,9 @@ dict_store_statistics(
 	n_cols = dict_index_get_n_unique(index);
 	stat_n_diff_key_vals_tmp = mem_heap_zalloc(heap, (n_cols + 1) * sizeof(ib_int64_t));

-	dict_index_stat_mutex_enter(index);
 	for (i = 0; i <= n_cols; i++) {
 		stat_n_diff_key_vals_tmp[i] = index->stat_n_diff_key_vals[i];
 	}
-	dict_index_stat_mutex_exit(index);

 	sys_stats = dict_sys->sys_stats;
 	sys_index = UT_LIST_GET_FIRST(sys_stats->indexes);
@ -4504,12 +4530,13 @@ Calculates new estimates for table and index statistics. The statistics
 are used in query optimization. */
 UNIV_INTERN
 void
-dict_update_statistics_low(
-/*=======================*/
+dict_update_statistics(
+/*===================*/
 	dict_table_t*	table,		/*!< in/out: table */
-	ibool		has_dict_mutex __attribute__((unused)),
-					/*!< in: TRUE if the caller has the
-					dictionary mutex */
+	ibool		only_calc_if_missing_stats,	/*!< in: only
+					update/recalc the stats if they have
+					not been initialized yet, otherwise
+					do nothing */
 	ibool		sync)		/*!< in: TRUE if must update SYS_STATS */
 {
 	dict_index_t*	index;
@ -4528,6 +4555,8 @@ dict_update_statistics_low(
 	}

 	if (srv_use_sys_stats_table && !((table->flags >> DICT_TF2_SHIFT) & DICT_TF2_TEMPORARY) && !sync) {
+		dict_table_stats_lock(table, RW_X_LATCH);
+
 		/* reload statistics from SYS_STATS table */
 		if (dict_reload_statistics(table, &sum_of_index_sizes)) {
 			/* success */
@ -4537,6 +4566,8 @@ dict_update_statistics_low(
 #endif
 			goto end;
 		}
+
+		dict_table_stats_unlock(table, RW_X_LATCH);
 	}
 #ifdef UNIV_DEBUG
 	fprintf(stderr, "InnoDB: DEBUG: update_statistics for %s.\n",
@ -4555,6 +4586,12 @@ dict_update_statistics_low(
 		return;
 	}

+	dict_table_stats_lock(table, RW_X_LATCH);
+
+	if (only_calc_if_missing_stats && table->stat_initialized) {
+		dict_table_stats_unlock(table, RW_X_LATCH);
+		return;
+	}

 	do {
 		if (table->is_corrupt) {
@ -4610,13 +4647,9 @@ dict_update_statistics_low(
 end:
 	index = dict_table_get_first_index(table);

-	dict_index_stat_mutex_enter(index);
-
 	table->stat_n_rows = index->stat_n_diff_key_vals[
 		dict_index_get_n_unique(index)];

-	dict_index_stat_mutex_exit(index);
-
 	table->stat_clustered_index_size = index->stat_index_size;

 	table->stat_sum_of_other_index_sizes = sum_of_index_sizes
@ -4625,19 +4658,8 @@ end:
 	table->stat_initialized = TRUE;

 	table->stat_modified_counter = 0;
-}

-/*********************************************************************//**
-Calculates new estimates for table and index statistics. The statistics
-are used in query optimization. */
-UNIV_INTERN
-void
-dict_update_statistics(
-/*===================*/
-	dict_table_t*	table,	/*!< in/out: table */
-	ibool		sync)
-{
-	dict_update_statistics_low(table, FALSE, sync);
+	dict_table_stats_unlock(table, RW_X_LATCH);
 }

 /**********************************************************************//**
@ -4717,8 +4739,9 @@ dict_table_print_low(

 	ut_ad(mutex_own(&(dict_sys->mutex)));

-	if (srv_stats_auto_update)
-		dict_update_statistics_low(table, TRUE, FALSE);
+	dict_update_statistics(table, FALSE /* update even if initialized */, FALSE);
+
+	dict_table_stats_lock(table, RW_S_LATCH);

 	fprintf(stderr,
 		"--------------------------------------\n"
@ -4747,6 +4770,8 @@ dict_table_print_low(
 		index = UT_LIST_GET_NEXT(indexes, index);
 	}

+	dict_table_stats_unlock(table, RW_S_LATCH);
+
 	foreign = UT_LIST_GET_FIRST(table->foreign_list);

 	while (foreign != NULL) {
@ -4795,8 +4820,6 @@ dict_index_print_low(

 	ut_ad(mutex_own(&(dict_sys->mutex)));

-	dict_index_stat_mutex_enter(index);
-
 	if (index->n_user_defined_cols > 0) {
 		n_vals = index->stat_n_diff_key_vals[
 			index->n_user_defined_cols];
@ -4804,8 +4827,6 @@ dict_index_print_low(
 		n_vals = index->stat_n_diff_key_vals[1];
 	}

-	dict_index_stat_mutex_exit(index);
-
 	fprintf(stderr,
 		"  INDEX: name %s, id %lu %lu, fields %lu/%lu,"
 		" uniq %lu, type %lu\n"
@ -5149,7 +5170,8 @@ void
 dict_table_replace_index_in_foreign_list(
 /*=====================================*/
 	dict_table_t*	table,  /*!< in/out: table */
-	dict_index_t*	index)	/*!< in: index to be replaced */
+	dict_index_t*	index,	/*!< in: index to be replaced */
+	const trx_t*	trx)	/*!< in: transaction handle */
 {
 	dict_foreign_t*	foreign;

@ -5160,7 +5182,13 @@ dict_table_replace_index_in_foreign_list(
 		if (foreign->foreign_index == index) {
 			dict_index_t*	new_index
 				= dict_foreign_find_equiv_index(foreign);
-			ut_a(new_index);
+
+			/* There must exist an alternative index if
+			check_foreigns (FOREIGN_KEY_CHECKS) is on, 
+			since ha_innobase::prepare_drop_index had done
+			the check before we reach here. */
+
+			ut_a(new_index || !trx->check_foreigns);

 			foreign->foreign_index = new_index;
 		}
@ -5294,8 +5322,8 @@ dict_close(void)
 	mem_free(dict_sys);
 	dict_sys = NULL;

-	for (i = 0; i < DICT_INDEX_STAT_MUTEX_SIZE; i++) {
-		mutex_free(&dict_index_stat_mutex[i]);
+	for (i = 0; i < DICT_TABLE_STATS_LATCHES_SIZE; i++) {
+		rw_lock_free(&dict_table_stats_latches[i]);
 	}
 }

--- a/dict/dict0load.c
+++ b/dict/dict0load.c
@ -221,8 +221,9 @@ loop:
 			/* The table definition was corrupt if there
 			is no index */

-			if (srv_stats_auto_update && dict_table_get_first_index(table)) {
-				dict_update_statistics_low(table, TRUE, FALSE);
+			if (dict_table_get_first_index(table)) {
+				dict_update_statistics(table, FALSE /* update
+						       even if initialized */, FALSE);
 			}

 			dict_table_print_low(table);
@ -1023,13 +1024,13 @@ err_exit:
 		if (err != DB_SUCCESS) {
 			dict_table_remove_from_cache(table);
 			table = NULL;
+		} else {
+			table->fk_max_recusive_level = 0;
 		}
 	} else if (!srv_force_recovery) {
 		dict_table_remove_from_cache(table);
 		table = NULL;
 	}
-
-	table->fk_max_recusive_level = 0;
 #if 0
 	if (err != DB_SUCCESS && table != NULL) {

--- a/fil/fil0fil.c
+++ b/fil/fil0fil.c
@ -336,14 +336,15 @@ fil_get_space_id_for_table(
 /*******************************************************************//**
 Frees a space object from the tablespace memory cache. Closes the files in
 the chain but does not delete them. There must not be any pending i/o's or
-flushes on the files. */
+flushes on the files.
+@return TRUE on success */
 static
 ibool
 fil_space_free(
 /*===========*/
-				/* out: TRUE if success */
-	ulint		id,	/* in: space id */
-	ibool		own_mutex);/* in: TRUE if own system->mutex */
+	ulint		id,		/* in: space id */
+	ibool		x_latched);	/* in: TRUE if caller has space->latch
+					in X mode */
 /********************************************************************//**
 Reads data from a space to a buffer. Remember that the possible incomplete
 blocks at the end of file are ignored: they are not taken into account when
@ -617,7 +618,7 @@ fil_node_create(

 	UT_LIST_ADD_LAST(chain, space->chain, node);

-	if (id < SRV_LOG_SPACE_FIRST_ID && fil_system->max_assigned_id < id) {
+	if (id < SRV_EXTRA_SYS_SPACE_FIRST_ID && fil_system->max_assigned_id < id) {

 		fil_system->max_assigned_id = id;
 	}
@ -1130,6 +1131,7 @@ try_again:
 	space = fil_space_get_by_name(name);

 	if (UNIV_LIKELY_NULL(space)) {
+		ibool	success;
 		ulint	namesake_id;

 		ut_print_timestamp(stderr);
@ -1168,9 +1170,10 @@ try_again:

 		namesake_id = space->id;

-		mutex_exit(&fil_system->mutex);
+		success = fil_space_free(namesake_id, FALSE);
+		ut_a(success);

-		fil_space_free(namesake_id, FALSE);
+		mutex_exit(&fil_system->mutex);

 		goto try_again;
 	}
@ -1205,6 +1208,7 @@ try_again:
 	space->mark = FALSE;

 	if (UNIV_LIKELY(purpose == FIL_TABLESPACE && !recv_recovery_on)
+	    && UNIV_UNLIKELY(id < SRV_EXTRA_SYS_SPACE_FIRST_ID)
 	    && UNIV_UNLIKELY(id > fil_system->max_assigned_id)) {
 		if (!fil_system->space_id_reuse_warned) {
 			fil_system->space_id_reuse_warned = TRUE;
@ -1290,7 +1294,7 @@ fil_assign_new_space_id(
 			(ulong) SRV_LOG_SPACE_FIRST_ID);
 	}

-	success = (id < SRV_LOG_SPACE_FIRST_ID);
+	success = (id < SRV_EXTRA_SYS_SPACE_FIRST_ID);

 	if (success) {
 		*space_id = fil_system->max_assigned_id = id;
@ -1323,15 +1327,14 @@ fil_space_free(
 /*===========*/
 					/* out: TRUE if success */
 	ulint		id,		/* in: space id */
-	ibool		own_mutex)	/* in: TRUE if own system->mutex */
+	ibool		x_latched)	/* in: TRUE if caller has space->latch
+					in X mode */
 {
 	fil_space_t*	space;
 	fil_space_t*	namespace;
 	fil_node_t*	fil_node;

-	if (!own_mutex) {
-		mutex_enter(&fil_system->mutex);
-	}
+	ut_ad(mutex_own(&fil_system->mutex));

 	space = fil_space_get_by_id(id);

@ -1342,8 +1345,6 @@ fil_space_free(
 			" from the cache but\n"
 			"InnoDB: it is not there.\n", (ulong) id);

-		mutex_exit(&fil_system->mutex);
-
 		return(FALSE);
 	}

@ -1378,8 +1379,8 @@ fil_space_free(

 	ut_a(0 == UT_LIST_GET_LEN(space->chain));

-	if (!own_mutex) {
-		mutex_exit(&fil_system->mutex);
+	if (x_latched) {
+		rw_lock_x_unlock(&space->latch);
 	}

 	rw_lock_free(&(space->latch));
@ -1626,25 +1627,27 @@ fil_close_all_files(void)
 /*=====================*/
 {
 	fil_space_t*	space;
-	fil_node_t*	node;

 	mutex_enter(&fil_system->mutex);

 	space = UT_LIST_GET_FIRST(fil_system->space_list);

 	while (space != NULL) {
+		fil_node_t*	node;
 		fil_space_t*	prev_space = space;

-		node = UT_LIST_GET_FIRST(space->chain);
+		for (node = UT_LIST_GET_FIRST(space->chain);
+		     node != NULL;
+		     node = UT_LIST_GET_NEXT(chain, node)) {

-		while (node != NULL) {
 			if (node->open) {
 				fil_node_close_file(node, fil_system);
 			}
-			node = UT_LIST_GET_NEXT(chain, node);
 		}
+
 		space = UT_LIST_GET_NEXT(space_list, space);
-		fil_space_free(prev_space->id, TRUE);
+
+		fil_space_free(prev_space->id, FALSE);
 	}

 	mutex_exit(&fil_system->mutex);
@ -1666,6 +1669,10 @@ fil_set_max_space_id_if_bigger(
 		ut_error;
 	}

+	if (max_id >= SRV_EXTRA_SYS_SPACE_FIRST_ID) {
+		return;
+	}
+
 	mutex_enter(&fil_system->mutex);

 	if (fil_system->max_assigned_id < max_id) {
@ -1684,6 +1691,7 @@ static
 ulint
 fil_write_lsn_and_arch_no_to_file(
 /*==============================*/
+	ulint		space_id,
 	ulint		sum_of_sizes,	/*!< in: combined size of previous files
 					in space, in database pages */
 	ib_uint64_t	lsn,		/*!< in: lsn to write */
@ -1693,14 +1701,16 @@ fil_write_lsn_and_arch_no_to_file(
 	byte*	buf1;
 	byte*	buf;

+	ut_a(trx_sys_sys_space(space_id));
+
 	buf1 = mem_alloc(2 * UNIV_PAGE_SIZE);
 	buf = ut_align(buf1, UNIV_PAGE_SIZE);

-	fil_read(TRUE, 0, 0, sum_of_sizes, 0, UNIV_PAGE_SIZE, buf, NULL);
+	fil_read(TRUE, space_id, 0, sum_of_sizes, 0, UNIV_PAGE_SIZE, buf, NULL);

 	mach_write_ull(buf + FIL_PAGE_FILE_FLUSH_LSN, lsn);

-	fil_write(TRUE, 0, 0, sum_of_sizes, 0, UNIV_PAGE_SIZE, buf, NULL);
+	fil_write(TRUE, space_id, 0, sum_of_sizes, 0, UNIV_PAGE_SIZE, buf, NULL);

 	mem_free(buf1);

@ -1736,7 +1746,7 @@ fil_write_flushed_lsn_to_data_files(
 		always open. */

 		if (space->purpose == FIL_TABLESPACE
-		    && space->id == 0) {
+		    && trx_sys_sys_space(space->id)) {
 			sum_of_sizes = 0;

 			node = UT_LIST_GET_FIRST(space->chain);
@ -1744,7 +1754,7 @@ fil_write_flushed_lsn_to_data_files(
 				mutex_exit(&fil_system->mutex);

 				err = fil_write_lsn_and_arch_no_to_file(
-					sum_of_sizes, lsn, arch_log_no);
+					space->id, sum_of_sizes, lsn, arch_log_no);
 				if (err != DB_SUCCESS) {

 					return(err);
@ -2264,6 +2274,19 @@ try_again:
 	path = mem_strdup(space->name);

 	mutex_exit(&fil_system->mutex);
+
+	/* Important: We rely on the data dictionary mutex to ensure
+	that a race is not possible here. It should serialize the tablespace
+	drop/free. We acquire an X latch only to avoid a race condition
+	when accessing the tablespace instance via:
+
+	  fsp_get_available_space_in_free_extents().
+
+	There our main motivation is to reduce the contention on the
+	dictionary mutex. */
+
+	rw_lock_x_lock(&space->latch);
+
 #ifndef UNIV_HOTBACKUP
 	/* Invalidate in the buffer pool all pages belonging to the
 	tablespace. Since we have set space->is_being_deleted = TRUE, readahead
@ -2276,7 +2299,11 @@ try_again:
 #endif
 	/* printf("Deleting tablespace %s id %lu\n", space->name, id); */

-	success = fil_space_free(id, FALSE);
+	mutex_enter(&fil_system->mutex);
+
+	success = fil_space_free(id, TRUE);
+
+	mutex_exit(&fil_system->mutex);

 	if (success) {
 		success = os_file_delete(path);
@ -2284,6 +2311,8 @@ try_again:
 		if (!success) {
 			success = os_file_delete_if_exists(path);
 		}
+	} else {
+		rw_lock_x_unlock(&space->latch);
 	}

 	if (success) {
@ -2311,6 +2340,31 @@ try_again:
 	return(FALSE);
 }

+/*******************************************************************//**
+Returns TRUE if a single-table tablespace is being deleted.
+@return TRUE if being deleted */
+UNIV_INTERN
+ibool
+fil_tablespace_is_being_deleted(
+/*============================*/
+	ulint		id)	/*!< in: space id */
+{
+	fil_space_t*	space;
+	ibool		is_being_deleted;
+
+	mutex_enter(&fil_system->mutex);
+
+	space = fil_space_get_by_id(id);
+
+	ut_a(space != NULL);
+
+	is_being_deleted = space->is_being_deleted;
+
+	mutex_exit(&fil_system->mutex);
+
+	return(is_being_deleted);
+}
+
 #ifndef UNIV_HOTBACKUP
 /*******************************************************************//**
 Discards a single-table tablespace. The tablespace must be cached in the
@ -5339,7 +5393,7 @@ fil_page_get_type(
 	return(mach_read_from_2(page + FIL_PAGE_TYPE));
 }

-/********************************************************************
+/****************************************************************//**
 Initializes the tablespace memory cache. */
 UNIV_INTERN
 void
--- a/fsp/fsp0fsp.c
+++ b/fsp/fsp0fsp.c
@ -3130,13 +3130,63 @@ fsp_get_available_space_in_free_extents(

 	ut_ad(!mutex_own(&kernel_mutex));

+	/* The convoluted mutex acquire is to overcome latching order
+	issues: The problem is that the fil_mutex is at a lower level
+	than the tablespace latch and the buffer pool mutex. We have to
+	first prevent any operations on the file system by acquiring the
+	dictionary mutex. Then acquire the tablespace latch to obey the
+	latching order and then release the dictionary mutex. That way we
+	ensure that the tablespace instance can't be freed while we are
+	examining its contents (see fil_space_free()).
+
+	However, there is one further complication, we release the fil_mutex
+	when we need to invalidate the the pages in the buffer pool and we
+	reacquire the fil_mutex when deleting and freeing the tablespace
+	instance in fil0fil.c. Here we need to account for that situation
+	too. */
+
+	mutex_enter(&dict_sys->mutex);
+
+	/* At this stage there is no guarantee that the tablespace even
+	exists in the cache. */
+
+	if (fil_tablespace_deleted_or_being_deleted_in_mem(space, -1)) {
+
+		mutex_exit(&dict_sys->mutex);
+
+		return(ULLINT_UNDEFINED);
+	}
+
 	mtr_start(&mtr);

 	latch = fil_space_get_latch(space, &flags);
+
+	/* This should ensure that the tablespace instance can't be freed
+	by another thread. However, the tablespace pages can still be freed
+	from the buffer pool. We need to check for that again. */
+
 	zip_size = dict_table_flags_to_zip_size(flags);

 	mtr_x_lock(latch, &mtr);

+	mutex_exit(&dict_sys->mutex);
+
+	/* At this point it is possible for the tablespace to be deleted and
+	its pages removed from the buffer pool. We need to check for that
+	situation. However, the tablespace instance can't be deleted because
+	our latching above should ensure that. */
+
+	if (fil_tablespace_is_being_deleted(space)) {
+
+		mtr_commit(&mtr);
+
+		return(ULLINT_UNDEFINED);
+	}
+
+	/* From here on even if the user has dropped the tablespace, the
+	pages _must_ still exist in the buffer pool and the tablespace
+	instance _must_ be in the file system hash table. */
+
 	space_header = fsp_get_space_header(space, zip_size, &mtr);

 	size = mtr_read_ulint(space_header + FSP_SIZE, MLOG_4BYTES, &mtr);
--- a/ha/hash0hash.c
+++ b/ha/hash0hash.c
@ -127,6 +127,70 @@ hash_create(
 	return(table);
 }

+/*************************************************************//**
+*/
+UNIV_INTERN
+ulint
+hash_create_needed(
+/*===============*/
+	ulint	n)
+{
+	ulint	prime;
+	ulint	offset;
+
+	prime = ut_find_prime(n);
+
+	offset = (sizeof(hash_table_t) + 7) / 8;
+	offset *= 8;
+
+	return(offset + sizeof(hash_cell_t) * prime);
+}
+
+UNIV_INTERN
+void
+hash_create_init(
+/*=============*/
+	hash_table_t*	table,
+	ulint		n)
+{
+	ulint	prime;
+	ulint	offset;
+
+	prime = ut_find_prime(n);
+
+	offset = (sizeof(hash_table_t) + 7) / 8;
+	offset *= 8;
+
+	table->array = (hash_cell_t*)(((byte*)table) + offset);
+	table->n_cells = prime;
+# if defined UNIV_AHI_DEBUG || defined UNIV_DEBUG
+	table->adaptive = FALSE;
+# endif /* UNIV_AHI_DEBUG || UNIV_DEBUG */
+	table->n_mutexes = 0;
+	table->mutexes = NULL;
+	table->heaps = NULL;
+	table->heap = NULL;
+	ut_d(table->magic_n = HASH_TABLE_MAGIC_N);
+
+	/* Initialize the cell array */
+	hash_table_clear(table);
+}
+
+UNIV_INTERN
+void
+hash_create_reuse(
+/*==============*/
+	hash_table_t*	table)
+{
+	ulint	offset;
+
+	offset = (sizeof(hash_table_t) + 7) / 8;
+	offset *= 8;
+
+	table->array = (hash_cell_t*)(((byte*)table) + offset);
+	ut_ad(table->magic_n == HASH_TABLE_MAGIC_N);
+}
+
 /*************************************************************//**
 Frees a hash table. */
 UNIV_INTERN
--- a/handler/ha_innodb.cc
+++ b/handler/ha_innodb.cc
@ -152,6 +152,7 @@ static ulong innobase_read_io_threads;
 static ulong innobase_write_io_threads;

 static ulong innobase_page_size;
+static ulong innobase_log_block_size;

 static my_bool innobase_thread_concurrency_timer_based;
 static long long innobase_buffer_pool_size, innobase_log_file_size;
@ -197,6 +198,7 @@ static my_bool	innobase_rollback_on_timeout		= FALSE;
 static my_bool	innobase_create_status_file		= FALSE;
 static my_bool	innobase_stats_on_metadata		= TRUE;
 static my_bool	innobase_use_sys_stats_table		= FALSE;
+static my_bool	innobase_buffer_pool_shm_checksum	= TRUE;

 static char*	internal_innobase_data_file_path	= NULL;

@ -2118,6 +2120,32 @@ innobase_init(
 		goto error;
 	}

+	srv_log_block_size = 0;
+	if (innobase_log_block_size != (1 << 9)) { /*!=512*/
+		uint	n_shift;
+
+		fprintf(stderr,
+			"InnoDB: Warning: innodb_log_block_size has been changed from default value 512. (###EXPERIMENTAL### operation)\n");
+		for (n_shift = 9; n_shift <= UNIV_PAGE_SIZE_SHIFT_MAX; n_shift++) {
+			if (innobase_log_block_size == ((ulong)1 << n_shift)) {
+				srv_log_block_size = (1 << n_shift);
+				fprintf(stderr,
+					"InnoDB: The log block size is set to %lu.\n",
+					srv_log_block_size);
+				break;
+			}
+		}
+	} else {
+		srv_log_block_size = 512;
+	}
+
+	if (!srv_log_block_size) {
+		fprintf(stderr,
+			"InnoDB: Error: %lu is not valid value for innodb_log_block_size.\n",
+			innobase_log_block_size);
+		goto error;
+	}
+
 #ifndef MYSQL_SERVER
 	innodb_overwrite_relay_log_info = FALSE;
 #endif
@ -2421,7 +2449,7 @@ innobase_change_buffering_inited_ok:
 	srv_n_write_io_threads = (ulint) innobase_write_io_threads;

 	srv_read_ahead &= 3;
-	srv_adaptive_checkpoint %= 3;
+	srv_adaptive_checkpoint %= 4;

 	srv_force_recovery = (ulint) innobase_force_recovery;

@ -2430,6 +2458,7 @@ innobase_change_buffering_inited_ok:
 	srv_use_doublewrite_buf = (ibool) innobase_use_doublewrite;
 	srv_use_checksums = (ibool) innobase_use_checksums;
 	srv_fast_checksum = (ibool) innobase_fast_checksum;
+	srv_buffer_pool_shm_checksum = (ibool) innobase_buffer_pool_shm_checksum;

 #ifdef HAVE_LARGE_PAGES
        if ((os_use_large_pages = (ibool) my_use_large_pages))
@ -4754,17 +4783,18 @@ include_field:
 		n_requested_fields++;

 		templ->col_no = i;
+		templ->clust_rec_field_no = dict_col_get_clust_pos(
+			&index->table->cols[i], clust_index);
+		ut_ad(templ->clust_rec_field_no != ULINT_UNDEFINED);

 		if (index == clust_index) {
-			templ->rec_field_no = dict_col_get_clust_pos(
-				&index->table->cols[i], index);
+			templ->rec_field_no = templ->clust_rec_field_no;
 		} else {
 			templ->rec_field_no = dict_index_get_nth_col_pos(
 								index, i);
-		}
-
-		if (templ->rec_field_no == ULINT_UNDEFINED) {
-			prebuilt->need_to_access_clustered = TRUE;
+			if (templ->rec_field_no == ULINT_UNDEFINED) {
+				prebuilt->need_to_access_clustered = TRUE;
+			}
 		}

 		if (field->null_ptr) {
@ -4816,9 +4846,7 @@ skip_field:
 		for (i = 0; i < n_requested_fields; i++) {
 			templ = prebuilt->mysql_template + i;

-			templ->rec_field_no = dict_col_get_clust_pos(
-				&index->table->cols[templ->col_no],
-				clust_index);
+			templ->rec_field_no = templ->clust_rec_field_no;
 		}
 	}
 }
@ -6674,6 +6702,33 @@ create_clustered_index_when_no_primary(
 	return(error);
 }

+/*****************************************************************//**
+Return a display name for the row format
+@return row format name */
+
+const char *get_row_format_name(
+/*============================*/
+enum row_type row_format)		/*!< in: Row Format */
+{
+	switch (row_format) {
+	case ROW_TYPE_COMPACT:
+		return("COMPACT");
+	case ROW_TYPE_COMPRESSED:
+		return("COMPRESSED");
+	case ROW_TYPE_DYNAMIC:
+		return("DYNAMIC");
+	case ROW_TYPE_REDUNDANT:
+		return("REDUNDANT");
+	case ROW_TYPE_DEFAULT:
+		return("DEFAULT");
+	case ROW_TYPE_FIXED:
+		return("FIXED");
+	default:
+		break;
+	}
+	return("NOT USED");
+}
+
 /*****************************************************************//**
 Validates the create options. We may build on this function
 in future. For now, it checks two specifiers:
@ -6689,9 +6744,9 @@ create_options_are_valid(
 					columns and indexes */
 	HA_CREATE_INFO*	create_info)	/*!< in: create info. */
 {
-	ibool 	kbs_specified	= FALSE;
+	ibool	kbs_specified	= FALSE;
 	ibool	ret		= TRUE;
-
+	enum row_type	row_type	= form->s->row_type;

 	ut_ad(thd != NULL);

@ -6700,13 +6755,28 @@ create_options_are_valid(
 		return(TRUE);
 	}

+	/* Check for a valid Innodb ROW_FORMAT specifier. For example,
+	ROW_TYPE_FIXED can be sent to Innodb */
+	switch (row_type) {
+	case ROW_TYPE_COMPACT:
+	case ROW_TYPE_COMPRESSED:
+	case ROW_TYPE_DYNAMIC:
+	case ROW_TYPE_REDUNDANT:
+	case ROW_TYPE_DEFAULT:
+		break;
+	default:
+		push_warning(
+			thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+			ER_ILLEGAL_HA_CREATE_OPTION,
+			"InnoDB: invalid ROW_FORMAT specifier.");
+		ret = FALSE;
+	}
+
 	ut_ad(form != NULL);
 	ut_ad(create_info != NULL);

-	/* First check if KEY_BLOCK_SIZE was specified. */
-	if (create_info->key_block_size
-	    || (create_info->used_fields & HA_CREATE_USED_KEY_BLOCK_SIZE)) {
-
+	/* First check if a non-zero KEY_BLOCK_SIZE was specified. */
+	if (create_info->key_block_size) {
 		kbs_specified = TRUE;
 		switch (create_info->key_block_size) {
 		case 1:
@ -6717,13 +6787,12 @@ create_options_are_valid(
 			/* Valid value. */
 			break;
 		default:
-			push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-					    ER_ILLEGAL_HA_CREATE_OPTION,
-					    "InnoDB: invalid"
-					    " KEY_BLOCK_SIZE = %lu."
-					    " Valid values are"
-					    " [1, 2, 4, 8, 16]",
-					    create_info->key_block_size);
+			push_warning_printf(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: invalid KEY_BLOCK_SIZE = %lu."
+				" Valid values are [1, 2, 4, 8, 16]",
+				create_info->key_block_size);
 			ret = FALSE;
 		}
 	}
@ -6731,110 +6800,67 @@ create_options_are_valid(
 	/* If KEY_BLOCK_SIZE was specified, check for its
 	dependencies. */
 	if (kbs_specified && !srv_file_per_table) {
-		push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-			     ER_ILLEGAL_HA_CREATE_OPTION,
-			     "InnoDB: KEY_BLOCK_SIZE"
-			     " requires innodb_file_per_table.");
+		push_warning(
+			thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+			ER_ILLEGAL_HA_CREATE_OPTION,
+			"InnoDB: KEY_BLOCK_SIZE"
+			" requires innodb_file_per_table.");
 		ret = FALSE;
 	}

 	if (kbs_specified && srv_file_format < DICT_TF_FORMAT_ZIP) {
-		push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-			     ER_ILLEGAL_HA_CREATE_OPTION,
-			     "InnoDB: KEY_BLOCK_SIZE"
-			     " requires innodb_file_format >"
-			     " Antelope.");
+		push_warning(
+			thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+			ER_ILLEGAL_HA_CREATE_OPTION,
+			"InnoDB: KEY_BLOCK_SIZE requires"
+			" innodb_file_format > Antelope.");
 		ret = FALSE;
 	}

-	/* Now check for ROW_FORMAT specifier. */
-	if (create_info->used_fields & HA_CREATE_USED_ROW_FORMAT) {
-		switch (form->s->row_type) {
-			const char* row_format_name;
-		case ROW_TYPE_COMPRESSED:
-		case ROW_TYPE_DYNAMIC:
-			row_format_name
-				= form->s->row_type == ROW_TYPE_COMPRESSED
-				? "COMPRESSED"
-				: "DYNAMIC";
-
-			/* These two ROW_FORMATs require
-			srv_file_per_table and srv_file_format */
-			if (!srv_file_per_table) {
-				push_warning_printf(
-					thd,
-					MYSQL_ERROR::WARN_LEVEL_WARN,
-					ER_ILLEGAL_HA_CREATE_OPTION,
-					"InnoDB: ROW_FORMAT=%s"
-					" requires innodb_file_per_table.",
-					row_format_name);
-					ret = FALSE;
-
-			}
-
-			if (srv_file_format < DICT_TF_FORMAT_ZIP) {
-				push_warning_printf(
-					thd,
-					MYSQL_ERROR::WARN_LEVEL_WARN,
-					ER_ILLEGAL_HA_CREATE_OPTION,
-					"InnoDB: ROW_FORMAT=%s"
-					" requires innodb_file_format >"
-					" Antelope.",
-					row_format_name);
-					ret = FALSE;
-			}
-
-			/* Cannot specify KEY_BLOCK_SIZE with
-			ROW_FORMAT = DYNAMIC.
-			However, we do allow COMPRESSED to be
-			specified with KEY_BLOCK_SIZE. */
-			if (kbs_specified
-			    && form->s->row_type == ROW_TYPE_DYNAMIC) {
-				push_warning_printf(
-					thd,
-					MYSQL_ERROR::WARN_LEVEL_WARN,
-					ER_ILLEGAL_HA_CREATE_OPTION,
-					"InnoDB: cannot specify"
-					" ROW_FORMAT = DYNAMIC with"
-					" KEY_BLOCK_SIZE.");
-					ret = FALSE;
-			}
-
-			break;
-
-		case ROW_TYPE_REDUNDANT:
-		case ROW_TYPE_COMPACT:
-		case ROW_TYPE_DEFAULT:
-			/* Default is COMPACT. */
-			row_format_name
-				= form->s->row_type == ROW_TYPE_REDUNDANT
-				? "REDUNDANT"
-				: "COMPACT";
-
-			/* Cannot specify KEY_BLOCK_SIZE with these
-			format specifiers. */
-			if (kbs_specified) {
-				push_warning_printf(
-					thd,
-					MYSQL_ERROR::WARN_LEVEL_WARN,
-					ER_ILLEGAL_HA_CREATE_OPTION,
-					"InnoDB: cannot specify"
-					" ROW_FORMAT = %s with"
-					" KEY_BLOCK_SIZE.",
-					row_format_name);
-					ret = FALSE;
-			}
-
-			break;
+	switch (row_type) {
+	case ROW_TYPE_COMPRESSED:
+	case ROW_TYPE_DYNAMIC:
+		/* These two ROW_FORMATs require srv_file_per_table
+		and srv_file_format > Antelope */
+		if (!srv_file_per_table) {
+			push_warning_printf(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: ROW_FORMAT=%s"
+				" requires innodb_file_per_table.",
+				get_row_format_name(row_type));
+				ret = FALSE;
+		}

-		default:
-			push_warning(thd,
-				     MYSQL_ERROR::WARN_LEVEL_WARN,
-				     ER_ILLEGAL_HA_CREATE_OPTION,
-				     "InnoDB: invalid ROW_FORMAT specifier.");
-			ret = FALSE;
+		if (srv_file_format < DICT_TF_FORMAT_ZIP) {
+			push_warning_printf(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: ROW_FORMAT=%s requires"
+				" innodb_file_format > Antelope.",
+				get_row_format_name(row_type));
+				ret = FALSE;
+		}
+	default:
+		break;
+	}

+	switch (row_type) {
+	case ROW_TYPE_REDUNDANT:
+	case ROW_TYPE_COMPACT:
+	case ROW_TYPE_DYNAMIC:
+		/* KEY_BLOCK_SIZE is only allowed with Compressed or Default */
+		if (kbs_specified) {
+			push_warning_printf(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: cannot specify ROW_FORMAT = %s"
+				" with KEY_BLOCK_SIZE.",
+				get_row_format_name(row_type));
+				ret = FALSE;
 		}
+	default:
+		break;
 	}

 	return(ret);
@ -6960,14 +6986,15 @@ ha_innobase::create(
 		goto cleanup;
 	}

-	if (create_info->key_block_size
-	    || (create_info->used_fields & HA_CREATE_USED_KEY_BLOCK_SIZE)) {
+	if (create_info->key_block_size) {
 		/* Determine the page_zip.ssize corresponding to the
 		requested page size (key_block_size) in kilobytes. */

 		ulint	ssize, ksize;
 		ulint	key_block_size = create_info->key_block_size;

+		/*  Set 'flags' to the correct key_block_size.
+		It will be zero if key_block_size is an invalid number.*/
 		for (ssize = ksize = 1; ssize <= DICT_TF_ZSSIZE_MAX;
 		     ssize++, ksize <<= 1) {
 			if (key_block_size == ksize) {
@ -6980,38 +7007,39 @@ ha_innobase::create(
 		}

 		if (!srv_file_per_table) {
-			push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-				     ER_ILLEGAL_HA_CREATE_OPTION,
-				     "InnoDB: KEY_BLOCK_SIZE"
-				     " requires innodb_file_per_table.");
+			push_warning(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: KEY_BLOCK_SIZE"
+				" requires innodb_file_per_table.");
 			flags = 0;
 		}

 		if (file_format < DICT_TF_FORMAT_ZIP) {
-			push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-				     ER_ILLEGAL_HA_CREATE_OPTION,
-				     "InnoDB: KEY_BLOCK_SIZE"
-				     " requires innodb_file_format >"
-				     " Antelope.");
+			push_warning(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: KEY_BLOCK_SIZE requires"
+				" innodb_file_format > Antelope.");
 			flags = 0;
 		}

 		if (!flags) {
-			push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
-					    ER_ILLEGAL_HA_CREATE_OPTION,
-					    "InnoDB: ignoring"
-					    " KEY_BLOCK_SIZE=%lu.",
-					    create_info->key_block_size);
+			push_warning_printf(
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+				ER_ILLEGAL_HA_CREATE_OPTION,
+				"InnoDB: ignoring"
+				" KEY_BLOCK_SIZE=%lu.",
+				create_info->key_block_size);
 		}
 	}

 	row_type = form->s->row_type;

 	if (flags) {
-		/* KEY_BLOCK_SIZE was specified. */
-		if (!(create_info->used_fields & HA_CREATE_USED_ROW_FORMAT)) {
-			/* ROW_FORMAT was not specified;
-			default to ROW_FORMAT=COMPRESSED */
+		/* if ROW_FORMAT is set to default,
+		automatically change it to COMPRESSED.*/
+		if (row_type == ROW_TYPE_DEFAULT) {
 			row_type = ROW_TYPE_COMPRESSED;
 		} else if (row_type != ROW_TYPE_COMPRESSED) {
 			/* ROW_FORMAT other than COMPRESSED
@ -7021,8 +7049,7 @@ ha_innobase::create(
 			such combinations can be obtained
 			with ALTER TABLE anyway. */
 			push_warning_printf(
-				thd,
-				MYSQL_ERROR::WARN_LEVEL_WARN,
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
 				ER_ILLEGAL_HA_CREATE_OPTION,
 				"InnoDB: ignoring KEY_BLOCK_SIZE=%lu"
 				" unless ROW_FORMAT=COMPRESSED.",
@ -7030,7 +7057,7 @@ ha_innobase::create(
 			flags = 0;
 		}
 	} else {
-		/* No KEY_BLOCK_SIZE */
+		/* flags == 0 means no KEY_BLOCK_SIZE.*/
 		if (row_type == ROW_TYPE_COMPRESSED) {
 			/* ROW_FORMAT=COMPRESSED without
 			KEY_BLOCK_SIZE implies half the
@ -7047,33 +7074,24 @@ ha_innobase::create(
 	}

 	switch (row_type) {
-		const char* row_format_name;
 	case ROW_TYPE_REDUNDANT:
 		break;
 	case ROW_TYPE_COMPRESSED:
 	case ROW_TYPE_DYNAMIC:
-		row_format_name
-			= row_type == ROW_TYPE_COMPRESSED
-			? "COMPRESSED"
-			: "DYNAMIC";
-
 		if (!srv_file_per_table) {
 			push_warning_printf(
-				thd,
-				MYSQL_ERROR::WARN_LEVEL_WARN,
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
 				ER_ILLEGAL_HA_CREATE_OPTION,
-				"InnoDB: ROW_FORMAT=%s"
-				" requires innodb_file_per_table.",
-				row_format_name);
+				"InnoDB: ROW_FORMAT=%s requires"
+				" innodb_file_per_table.",
+				get_row_format_name(row_type));
 		} else if (file_format < DICT_TF_FORMAT_ZIP) {
 			push_warning_printf(
-				thd,
-				MYSQL_ERROR::WARN_LEVEL_WARN,
+				thd, MYSQL_ERROR::WARN_LEVEL_WARN,
 				ER_ILLEGAL_HA_CREATE_OPTION,
-				"InnoDB: ROW_FORMAT=%s"
-				" requires innodb_file_format >"
-				" Antelope.",
-				row_format_name);
+				"InnoDB: ROW_FORMAT=%s requires"
+				" innodb_file_format > Antelope.",
+				get_row_format_name(row_type));
 		} else {
 			flags |= DICT_TF_COMPACT
 				| (DICT_TF_FORMAT_ZIP
@ -7085,10 +7103,10 @@ ha_innobase::create(
 	case ROW_TYPE_NOT_USED:
 	case ROW_TYPE_FIXED:
 	default:
-		push_warning(thd,
-			     MYSQL_ERROR::WARN_LEVEL_WARN,
-			     ER_ILLEGAL_HA_CREATE_OPTION,
-			     "InnoDB: assuming ROW_FORMAT=COMPACT.");
+		push_warning(
+			thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+			ER_ILLEGAL_HA_CREATE_OPTION,
+			"InnoDB: assuming ROW_FORMAT=COMPACT.");
 	case ROW_TYPE_DEFAULT:
 	case ROW_TYPE_COMPACT:
 		flags = DICT_TF_COMPACT;
@ -7271,6 +7289,14 @@ ha_innobase::discard_or_import_tablespace(
 		err = row_discard_tablespace_for_mysql(dict_table->name, trx);
 	} else {
 		err = row_import_tablespace_for_mysql(dict_table->name, trx);
+
+		/* in expanded import mode re-initialize auto_increment again */
+		if ((err == DB_SUCCESS) && srv_expand_import &&
+		    (table->found_next_number_field != NULL)) {
+			dict_table_autoinc_lock(dict_table);
+			innobase_initialize_autoinc();
+			dict_table_autoinc_unlock(dict_table);
+		}
 	}

 	err = convert_error_code_to_mysql(err, dict_table->flags, NULL);
@ -7734,6 +7760,7 @@ ha_innobase::estimate_rows_upper_bound(void)
 	dict_index_t*	index;
 	ulonglong	estimate;
 	ulonglong	local_data_file_length;
+	ulint		stat_n_leaf_pages;

 	DBUG_ENTER("estimate_rows_upper_bound");

@ -7753,10 +7780,12 @@ ha_innobase::estimate_rows_upper_bound(void)

 	index = dict_table_get_first_index(prebuilt->table);

-	ut_a(index->stat_n_leaf_pages > 0);
+	stat_n_leaf_pages = index->stat_n_leaf_pages;
+
+	ut_a(stat_n_leaf_pages > 0);

 	local_data_file_length =
-		((ulonglong) index->stat_n_leaf_pages) * UNIV_PAGE_SIZE;
+		((ulonglong) stat_n_leaf_pages) * UNIV_PAGE_SIZE;


 	/* Calculate a minimum length for a clustered index record and from
@ -7923,9 +7952,12 @@ Returns statistics information of the table to the MySQL interpreter,
 in various fields of the handle object. */
 UNIV_INTERN
 int
-ha_innobase::info(
-/*==============*/
-	uint flag)	/*!< in: what information MySQL requests */
+ha_innobase::info_low(
+/*==================*/
+	uint	flag,			/*!< in: what information MySQL
+					requests */
+	bool	called_from_analyze)	/* in: TRUE if called from
+					::analyze() */
 {
 	dict_table_t*	ib_table;
 	dict_index_t*	index;
@ -7956,14 +7988,12 @@ ha_innobase::info(
 	ib_table = prebuilt->table;

 	if (flag & HA_STATUS_TIME) {
-		if ((innobase_stats_on_metadata
-		     || thd_sql_command(user_thd) == SQLCOM_ANALYZE)
-		    && !share->ib_table->is_corrupt) {
+		if ((called_from_analyze || innobase_stats_on_metadata) && !share->ib_table->is_corrupt) {
 			/* In sql_show we call with this flag: update
 			then statistics so that they are up-to-date */

 			if (srv_use_sys_stats_table && !((ib_table->flags >> DICT_TF2_SHIFT) & DICT_TF2_TEMPORARY)
-			    && thd_sql_command(user_thd) == SQLCOM_ANALYZE) {
+			    && called_from_analyze) {
 				/* If the indexes on the table don't have enough rows in SYS_STATS system table, */
 				/* they need to be created. */
 				dict_index_t*	index;
@ -7985,7 +8015,8 @@ ha_innobase::info(
 			prebuilt->trx->op_info = "updating table statistics";

 			dict_update_statistics(ib_table,
-				(thd_sql_command(user_thd) == SQLCOM_ANALYZE)?TRUE:FALSE);
+					       FALSE /* update even if stats
+						     are initialized */, called_from_analyze);

 			prebuilt->trx->op_info = "returning various info to MySQL";
 		}
@ -8004,6 +8035,9 @@ ha_innobase::info(
 	}

 	if (flag & HA_STATUS_VARIABLE) {
+
+		dict_table_stats_lock(ib_table, RW_S_LATCH);
+
 		n_rows = ib_table->stat_n_rows;

 		/* Because we do not protect stat_n_rows by any mutex in a
@ -8053,6 +8087,8 @@ ha_innobase::info(
 				ib_table->stat_sum_of_other_index_sizes)
 					* UNIV_PAGE_SIZE;

+		dict_table_stats_unlock(ib_table, RW_S_LATCH);
+
 		/* Since fsp_get_available_space_in_free_extents() is
 		acquiring latches inside InnoDB, we do not call it if we
 		are asked by MySQL to avoid locking. Another reason to
@ -8069,19 +8105,12 @@ ha_innobase::info(
 			innodb_crash_recovery is set to a high value. */
 			stats.delete_length = 0;
 		} else {
-			/* lock the data dictionary to avoid races with
-			ibd_file_missing and tablespace_discarded */
-			row_mysql_lock_data_dictionary(prebuilt->trx);
+			ullint	avail_space;

-			/* ib_table->space must be an existent tablespace */
-			if (!ib_table->ibd_file_missing
-			    && !ib_table->tablespace_discarded) {
-
-				stats.delete_length =
-					fsp_get_available_space_in_free_extents(
-						ib_table->space) * 1024;
-			} else {
+			avail_space = fsp_get_available_space_in_free_extents(
+				ib_table->space);

+			if (avail_space == ULLINT_UNDEFINED) {
 				THD*	thd;

 				thd = ha_thd();
@ -8098,9 +8127,9 @@ ha_innobase::info(
 					ib_table->name);

 				stats.delete_length = 0;
+			} else {
+				stats.delete_length = avail_space * 1024;
 			}
-
-			row_mysql_unlock_data_dictionary(prebuilt->trx);
 		}

 		stats.check_time = 0;
@ -8129,6 +8158,8 @@ ha_innobase::info(
 					table->s->keys);
 		}

+		dict_table_stats_lock(ib_table, RW_S_LATCH);
+
 		for (i = 0; i < table->s->keys; i++) {
 			ulong	j;
 			/* We could get index quickly through internal
@ -8166,8 +8197,6 @@ ha_innobase::info(
 					break;
 				}

-				dict_index_stat_mutex_enter(index);
-
 				if (index->stat_n_diff_key_vals[j + 1] == 0) {

 					rec_per_key = stats.records;
@ -8176,8 +8205,6 @@ ha_innobase::info(
 					 index->stat_n_diff_key_vals[j + 1]);
 				}

-				dict_index_stat_mutex_exit(index);
-
 				/* Since MySQL seems to favor table scans
 				too much over index searches, we pretend
 				index selectivity is 2 times better than
@ -8194,6 +8221,8 @@ ha_innobase::info(
 				  (ulong) rec_per_key;
 			}
 		}
+
+		dict_table_stats_unlock(ib_table, RW_S_LATCH);
 	}

 	if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) {
@ -8227,6 +8256,18 @@ func_exit:
 	DBUG_RETURN(0);
 }

+/*********************************************************************//**
+Returns statistics information of the table to the MySQL interpreter,
+in various fields of the handle object. */
+UNIV_INTERN
+int
+ha_innobase::info(
+/*==============*/
+	uint	flag)	/*!< in: what information MySQL requests */
+{
+	return(info_low(flag, false /* not called from analyze */));
+}
+
 /**********************************************************************//**
 Updates index cardinalities of the table, based on 8 random dives into
 each index tree. This does NOT calculate exact statistics on the table.
@ -8243,7 +8284,8 @@ ha_innobase::analyze(
 	}

 	/* Simply call ::info() with all the flags */
-	info(HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE);
+	info_low(HA_STATUS_TIME | HA_STATUS_CONST | HA_STATUS_VARIABLE,
+		 true /* called from analyze */);

 	if (share->ib_table->is_corrupt) {
 		return(HA_ADMIN_CORRUPT);
@ -8552,8 +8594,6 @@ ha_innobase::get_foreign_key_create_info(void)
 	flen = ftell(srv_dict_tmpfile);
 	if (flen < 0) {
 		flen = 0;
-	} else if (flen > 64000 - 1) {
-		flen = 64000 - 1;
 	}

 	/* allocate buffer for the string, and
@ -9866,7 +9906,11 @@ ha_innobase::innobase_peek_autoinc(void)

 	auto_inc = dict_table_autoinc_read(innodb_table);

-	ut_a(auto_inc > 0);
+	if (auto_inc == 0) {
+		ut_print_timestamp(stderr);
+		fprintf(stderr, "  InnoDB: AUTOINC next value generation "
+			"is disabled for '%s'\n", innodb_table->name);
+	}

 	dict_table_autoinc_unlock(innodb_table);

@ -11140,6 +11184,11 @@ static MYSQL_SYSVAR_ULONG(page_size, innobase_page_size,
  "###EXPERIMENTAL###: The universal page size of the database. Changing for created database is not supported. Use on your own risk!",
  NULL, NULL, (1 << 14), (1 << 12), (1 << UNIV_PAGE_SIZE_SHIFT_MAX), 0);

+static MYSQL_SYSVAR_ULONG(log_block_size, innobase_log_block_size,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "###EXPERIMENTAL###: The log block size of the transaction log file. Changing for created log file is not supported. Use on your own risk!",
+  NULL, NULL, (1 << 9)/*512*/, (1 << 9)/*512*/, (1 << UNIV_PAGE_SIZE_SHIFT_MAX), 0);
+
 static MYSQL_SYSVAR_STR(data_home_dir, innobase_data_home_dir,
  PLUGIN_VAR_READONLY,
  "The common part for InnoDB table spaces.",
@ -11358,6 +11407,16 @@ static MYSQL_SYSVAR_LONGLONG(buffer_pool_size, innobase_buffer_pool_size,
  "The size of the memory buffer InnoDB uses to cache data and indexes of its tables.",
  NULL, NULL, 128*1024*1024L, 32*1024*1024L, LONGLONG_MAX, 1024*1024L);

+static MYSQL_SYSVAR_UINT(buffer_pool_shm_key, srv_buffer_pool_shm_key,
+  PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
+  "[experimental] The key value of shared memory segment for the buffer pool. 0 (default) disables the feature.",
+  NULL, NULL, 0, 0, INT_MAX32, 0);
+
+static MYSQL_SYSVAR_BOOL(buffer_pool_shm_checksum, innobase_buffer_pool_shm_checksum,
+  PLUGIN_VAR_NOCMDARG | PLUGIN_VAR_READONLY,
+  "Enable buffer_pool_shm checksum validation (enabled by default).",
+  NULL, NULL, TRUE);
+
 static MYSQL_SYSVAR_ULONG(commit_concurrency, innobase_commit_concurrency,
  PLUGIN_VAR_RQCMDARG,
  "Helps in performance tuning in heavily concurrent environments.",
@ -11489,6 +11548,13 @@ static MYSQL_SYSVAR_STR(change_buffering, innobase_change_buffering,
  innodb_change_buffering_validate,
  innodb_change_buffering_update, "inserts"); 

+#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+static MYSQL_SYSVAR_UINT(change_buffering_debug, ibuf_debug,
+  PLUGIN_VAR_RQCMDARG,
+  "Debug flags for InnoDB change buffering (0=none)",
+  NULL, NULL, 0, 0, 1, 0);
+#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
+
 static MYSQL_SYSVAR_ULONG(read_ahead_threshold, srv_read_ahead_threshold,
  PLUGIN_VAR_RQCMDARG,
  "Number of pages that must be accessed sequentially for InnoDB to "
@ -11561,17 +11627,19 @@ innodb_adaptive_checkpoint_update(
  void*        var_ptr,
  const void*  save)
 {
-  *(long *)var_ptr= (*(long *)save) % 3;
+  *(long *)var_ptr= (*(long *)save) % 4;
 }
 const char *adaptive_checkpoint_names[]=
 {
  "none", /* 0 */
  "reflex", /* 1 */
  "estimate", /* 2 */
+  "keep_average", /* 3 */
  /* For compatibility of the older patch */
-  "0", /* 3 ("none" + 3) */
-  "1", /* 4 ("reflex" + 3) */
-  "2", /* 5 ("estimate" + 3) */
+  "0", /* 4 ("none" + 3) */
+  "1", /* 5 ("reflex" + 3) */
+  "2", /* 6 ("estimate" + 3) */
+  "3", /* 7 ("keep_average" + 4) */
  NullS
 };
 TYPELIB adaptive_checkpoint_typelib=
@ -11581,7 +11649,7 @@ TYPELIB adaptive_checkpoint_typelib=
 };
 static MYSQL_SYSVAR_ENUM(adaptive_checkpoint, srv_adaptive_checkpoint,
  PLUGIN_VAR_RQCMDARG,
-  "Enable/Disable flushing along modified age. (none, reflex, [estimate])",
+  "Enable/Disable flushing along modified age. (none, reflex, [estimate], keep_average)",
  NULL, innodb_adaptive_checkpoint_update, 2, &adaptive_checkpoint_typelib);

 static MYSQL_SYSVAR_ULONG(enable_unsafe_group_commit, srv_enable_unsafe_group_commit,
@ -11620,9 +11688,12 @@ static	MYSQL_SYSVAR_ULONG(pass_corrupt_table, srv_pass_corrupt_table,

 static struct st_mysql_sys_var* innobase_system_variables[]= {
  MYSQL_SYSVAR(page_size),
+  MYSQL_SYSVAR(log_block_size),
  MYSQL_SYSVAR(additional_mem_pool_size),
  MYSQL_SYSVAR(autoextend_increment),
  MYSQL_SYSVAR(buffer_pool_size),
+  MYSQL_SYSVAR(buffer_pool_shm_key),
+  MYSQL_SYSVAR(buffer_pool_shm_checksum),
  MYSQL_SYSVAR(checksums),
  MYSQL_SYSVAR(fast_checksum),
  MYSQL_SYSVAR(commit_concurrency),
@ -11698,6 +11769,9 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
  MYSQL_SYSVAR(dict_size_limit),
  MYSQL_SYSVAR(use_sys_malloc),
  MYSQL_SYSVAR(change_buffering),
+#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+  MYSQL_SYSVAR(change_buffering_debug),
+#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
  MYSQL_SYSVAR(read_ahead_threshold),
  MYSQL_SYSVAR(io_capacity),
  MYSQL_SYSVAR(auto_lru_dump),
--- a/handler/ha_innodb.h
+++ b/handler/ha_innodb.h
@ -110,6 +110,7 @@ class ha_innobase: public handler
 	ulint innobase_update_autoinc(ulonglong	auto_inc);
 	void innobase_initialize_autoinc();
 	dict_index_t* innobase_get_index(uint keynr);
+	int info_low(uint flag, bool called_from_analyze);

 	/* Init values for the class: */
 public:
--- a/handler/handler0alter.cc
+++ b/handler/handler0alter.cc
@ -1012,12 +1012,13 @@ ha_innobase::prepare_drop_index(
 		index->to_be_dropped = TRUE;
 	}

-	/* If FOREIGN_KEY_CHECK = 1 you may not drop an index defined
+	/* If FOREIGN_KEY_CHECKS = 1 you may not drop an index defined
 	for a foreign key constraint because InnoDB requires that both
-	tables contain indexes for the constraint.  Note that CREATE
-	INDEX id ON table does a CREATE INDEX and DROP INDEX, and we
-	can ignore here foreign keys because a new index for the
-	foreign key has already been created.
+	tables contain indexes for the constraint. Such index can
+	be dropped only if FOREIGN_KEY_CHECKS is set to 0.
+	Note that CREATE INDEX id ON table does a CREATE INDEX and
+	DROP INDEX, and we can ignore here foreign keys because a
+	new index for the foreign key has already been created.

 	We check for the foreign key constraints after marking the
 	candidate indexes for deletion, because when we check for an
--- a/handler/innodb_patch_info.h
+++ b/handler/innodb_patch_info.h
@ -47,5 +47,6 @@ struct innodb_enhancement {
 {"innodb_fast_checksum","Using the checksum on 32bit-unit calculation","incompatible for unpatched ver.","http://www.percona.com/docs/wiki/percona-xtradb"},
 {"innodb_files_extend","allow >4GB transaction log files, and can vary universal page size of datafiles","incompatible for unpatched ver.","http://www.percona.com/docs/wiki/percona-xtradb"},
 {"innodb_sys_tables_sys_indexes","Expose InnoDB SYS_TABLES and SYS_INDEXES schema tables","","http://www.percona.com/docs/wiki/percona-xtradb"},
+{"innodb_buffer_pool_shm","Put buffer pool contents to shared memory segment and reuse it at clean restart [experimental]","","http://www.percona.com/docs/wiki/percona-xtradb"},
 {NULL, NULL, NULL, NULL}
 };
--- a/ibuf/ibuf0ibuf.c
+++ b/ibuf/ibuf0ibuf.c
@ -49,6 +49,7 @@ Created 7/19/1997 Heikki Tuuri
 #include "btr0cur.h"
 #include "btr0pcur.h"
 #include "btr0btr.h"
+#include "row0upd.h"
 #include "sync0sync.h"
 #include "dict0boot.h"
 #include "fut0lst.h"
@ -170,6 +171,11 @@ access order rules. */
 /** Operations that can currently be buffered. */
 UNIV_INTERN ibuf_use_t	ibuf_use		= IBUF_USE_INSERT;

+#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+/** Flag to control insert buffer debugging. */
+UNIV_INTERN uint	ibuf_debug;
+#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
+
 /** The insert buffer control structure */
 UNIV_INTERN ibuf_t*	ibuf			= NULL;

@ -2886,9 +2892,80 @@ During merge, inserts to an index page a secondary index entry extracted
 from the insert buffer. */
 static
 void
+ibuf_insert_to_index_page_low(
+/*==========================*/
+	const dtuple_t*	entry,	/*!< in: buffered entry to insert */
+	buf_block_t*	block,	/*!< in/out: index page where the buffered
+				entry should be placed */
+	dict_index_t*	index,	/*!< in: record descriptor */
+	mtr_t*		mtr,	/*!< in/out: mtr */
+	page_cur_t*	page_cur)/*!< in/out: cursor positioned on the record
+				after which to insert the buffered entry */
+{
+	const page_t*	page;
+	ulint		space;
+	ulint		page_no;
+	ulint		zip_size;
+	const page_t*	bitmap_page;
+	ulint		old_bits;
+
+	if (UNIV_LIKELY
+	    (page_cur_tuple_insert(page_cur, entry, index, 0, mtr) != NULL)) {
+		return;
+	}
+
+	/* If the record did not fit, reorganize */
+
+	btr_page_reorganize(block, index, mtr);
+	page_cur_search(block, index, entry, PAGE_CUR_LE, page_cur);
+
+	/* This time the record must fit */
+
+	if (UNIV_LIKELY
+	    (page_cur_tuple_insert(page_cur, entry, index, 0, mtr) != NULL)) {
+		return;
+	}
+
+	page = buf_block_get_frame(block);
+
+	ut_print_timestamp(stderr);
+
+	fprintf(stderr,
+		"  InnoDB: Error: Insert buffer insert fails;"
+		" page free %lu, dtuple size %lu\n",
+		(ulong) page_get_max_insert_size(page, 1),
+		(ulong) rec_get_converted_size(index, entry, 0));
+	fputs("InnoDB: Cannot insert index record ", stderr);
+	dtuple_print(stderr, entry);
+	fputs("\nInnoDB: The table where this index record belongs\n"
+	      "InnoDB: is now probably corrupt. Please run CHECK TABLE on\n"
+	      "InnoDB: that table.\n", stderr);
+
+	space = page_get_space_id(page);
+	zip_size = buf_block_get_zip_size(block);
+	page_no = page_get_page_no(page);
+
+	bitmap_page = ibuf_bitmap_get_map_page(space, page_no, zip_size, mtr);
+	old_bits = ibuf_bitmap_page_get_bits(bitmap_page, page_no, zip_size,
+					     IBUF_BITMAP_FREE, mtr);
+
+	fprintf(stderr,
+		"InnoDB: space %lu, page %lu, zip_size %lu, bitmap bits %lu\n",
+		(ulong) space, (ulong) page_no,
+		(ulong) zip_size, (ulong) old_bits);
+
+	fputs("InnoDB: Submit a detailed bug report"
+	      " to http://bugs.mysql.com\n", stderr);
+}
+
+/************************************************************************
+During merge, inserts to an index page a secondary index entry extracted
+from the insert buffer. */
+static
+void
 ibuf_insert_to_index_page(
 /*======================*/
-	dtuple_t*	entry,	/*!< in: buffered entry to insert */
+	const dtuple_t*	entry,	/*!< in: buffered entry to insert */
 	buf_block_t*	block,	/*!< in/out: index page where the buffered entry
 				should be placed */
 	dict_index_t*	index,	/*!< in: record descriptor */
@ -2898,11 +2975,10 @@ ibuf_insert_to_index_page(
 	ulint		low_match;
 	page_t*		page		= buf_block_get_frame(block);
 	rec_t*		rec;
-	page_t*		bitmap_page;
-	ulint		old_bits;

 	ut_ad(ibuf_inside());
 	ut_ad(dtuple_check_typed(entry));
+	ut_ad(!buf_block_align(page)->is_hashed);

 	if (UNIV_UNLIKELY(dict_table_is_comp(index->table)
 			  != (ibool)!!page_is_comp(page))) {
@ -2940,71 +3016,86 @@ dump:
 	low_match = page_cur_search(block, index, entry,
 				    PAGE_CUR_LE, &page_cur);

-	if (low_match == dtuple_get_n_fields(entry)) {
+	if (UNIV_UNLIKELY(low_match == dtuple_get_n_fields(entry))) {
+		mem_heap_t*	heap;
+		upd_t*		update;
+		ulint*		offsets;
 		page_zip_des_t*	page_zip;

 		rec = page_cur_get_rec(&page_cur);
-		page_zip = buf_block_get_page_zip(block);

-		btr_cur_del_unmark_for_ibuf(rec, page_zip, mtr);
-	} else {
-		rec = page_cur_tuple_insert(&page_cur, entry, index, 0, mtr);
+		/* This is based on
+		row_ins_sec_index_entry_by_modify(BTR_MODIFY_LEAF). */
+		ut_ad(rec_get_deleted_flag(rec, page_is_comp(page)));

-		if (UNIV_LIKELY(rec != NULL)) {
+		heap = mem_heap_create(1024);
+
+		offsets = rec_get_offsets(rec, index, NULL, ULINT_UNDEFINED,
+					  &heap);
+		update = row_upd_build_sec_rec_difference_binary(
+			index, entry, rec, NULL, heap);
+
+		page_zip = buf_block_get_page_zip(block);
+
+		if (update->n_fields == 0) {
+			/* The records only differ in the delete-mark.
+			Clear the delete-mark, like we did before
+			Bug #56680 was fixed. */
+			btr_cur_del_unmark_for_ibuf(rec, page_zip, mtr);
+updated_in_place:
+			mem_heap_free(heap);
 			return;
 		}

-		/* If the record did not fit, reorganize */
-
-		btr_page_reorganize(block, index, mtr);
-		page_cur_search(block, index, entry, PAGE_CUR_LE, &page_cur);
+		/* Copy the info bits. Clear the delete-mark. */
+		update->info_bits = rec_get_info_bits(rec, page_is_comp(page));
+		update->info_bits &= ~REC_INFO_DELETED_FLAG;
+
+		/* We cannot invoke btr_cur_optimistic_update() here,
+		because we do not have a btr_cur_t or que_thr_t,
+		as the insert buffer merge occurs at a very low level. */
+		if (!row_upd_changes_field_size_or_external(index, offsets,
+							    update)
+		    && (!page_zip || btr_cur_update_alloc_zip(
+				page_zip, block, index,
+				rec_offs_size(offsets), FALSE, mtr))) {
+			/* This is the easy case. Do something similar
+			to btr_cur_update_in_place(). */
+			row_upd_rec_in_place(rec, index, offsets,
+					     update, page_zip);
+			goto updated_in_place;
+		}

-		/* This time the record must fit */
-		if (UNIV_UNLIKELY
-		    (!page_cur_tuple_insert(&page_cur, entry, index,
-					    0, mtr))) {
-			ulint	space;
-			ulint	page_no;
-			ulint	zip_size;
+		/* A collation may identify values that differ in
+		storage length.
+		Some examples (1 or 2 bytes):
+		utf8_turkish_ci: I = U+0131 LATIN SMALL LETTER DOTLESS I
+		utf8_general_ci: S = U+00DF LATIN SMALL LETTER SHARP S
+		utf8_general_ci: A = U+00E4 LATIN SMALL LETTER A WITH DIAERESIS

-			ut_print_timestamp(stderr);
+		latin1_german2_ci: SS = U+00DF LATIN SMALL LETTER SHARP S

-			fprintf(stderr,
-				"  InnoDB: Error: Insert buffer insert"
-				" fails; page free %lu,"
-				" dtuple size %lu\n",
-				(ulong) page_get_max_insert_size(
-					page, 1),
-				(ulong) rec_get_converted_size(
-					index, entry, 0));
-			fputs("InnoDB: Cannot insert index record ",
-			      stderr);
-			dtuple_print(stderr, entry);
-			fputs("\nInnoDB: The table where"
-			      " this index record belongs\n"
-			      "InnoDB: is now probably corrupt."
-			      " Please run CHECK TABLE on\n"
-			      "InnoDB: that table.\n", stderr);
+		Examples of a character (3-byte UTF-8 sequence)
+		identified with 2 or 4 characters (1-byte UTF-8 sequences):

-			space = page_get_space_id(page);
-			zip_size = buf_block_get_zip_size(block);
-			page_no = page_get_page_no(page);
+		utf8_unicode_ci: 'II' = U+2171 SMALL ROMAN NUMERAL TWO
+		utf8_unicode_ci: '(10)' = U+247D PARENTHESIZED NUMBER TEN
+		*/

-			bitmap_page = ibuf_bitmap_get_map_page(
-				space, page_no, zip_size, mtr);
-			old_bits = ibuf_bitmap_page_get_bits(
-				bitmap_page, page_no, zip_size,
-				IBUF_BITMAP_FREE, mtr);
+		/* Delete the different-length record, and insert the
+		buffered one. */

-			fprintf(stderr,
-				"InnoDB: space %lu, page %lu,"
-				" zip_size %lu, bitmap bits %lu\n",
-				(ulong) space, (ulong) page_no,
-				(ulong) zip_size, (ulong) old_bits);
+		lock_rec_store_on_page_infimum(block, rec);
+		page_cur_delete_rec(&page_cur, index, offsets, mtr);
+		page_cur_move_to_prev(&page_cur);
+		mem_heap_free(heap);

-			fputs("InnoDB: Submit a detailed bug report"
-			      " to http://bugs.mysql.com\n", stderr);
-		}
+		ibuf_insert_to_index_page_low(entry, block, index, mtr,
+					      &page_cur);
+		lock_rec_restore_from_page_infimum(block, rec, block);
+	} else {
+		ibuf_insert_to_index_page_low(entry, block, index, mtr,
+					      &page_cur);
 	}
 }

--- a/include/btr0btr.h
+++ b/include/btr0btr.h
@ -94,26 +94,35 @@ btr_root_get(
 Gets a buffer page and declares its latching order level. */
 UNIV_INLINE
 buf_block_t*
-btr_block_get(
-/*==========*/
-	ulint	space,		/*!< in: space id */
-	ulint	zip_size,	/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
-	ulint	page_no,	/*!< in: page number */
-	ulint	mode,		/*!< in: latch mode */
-	mtr_t*	mtr);		/*!< in: mtr */
-/**************************************************************//**
-Gets a buffer page and declares its latching order level. */
-UNIV_INLINE
-page_t*
-btr_page_get(
-/*=========*/
-	ulint	space,		/*!< in: space id */
-	ulint	zip_size,	/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
-	ulint	page_no,	/*!< in: page number */
-	ulint	mode,		/*!< in: latch mode */
-	mtr_t*	mtr);		/*!< in: mtr */
+btr_block_get_func(
+/*===============*/
+	ulint		space,		/*!< in: space id */
+	ulint		zip_size,	/*!< in: compressed page size in bytes
+					or 0 for uncompressed pages */
+	ulint		page_no,	/*!< in: page number */
+	ulint		mode,		/*!< in: latch mode */
+	const char*	file,		/*!< in: file name */
+	ulint		line,		/*!< in: line where called */
+	mtr_t*		mtr)		/*!< in/out: mtr */
+	__attribute__((nonnull));
+/** Gets a buffer page and declares its latching order level.
+@param space	tablespace identifier
+@param zip_size	compressed page size in bytes or 0 for uncompressed pages
+@param page_no	page number
+@param mode	latch mode
+@param mtr	mini-transaction handle
+@return the block descriptor */
+# define btr_block_get(space,zip_size,page_no,mode,mtr) \
+	btr_block_get_func(space,zip_size,page_no,mode,__FILE__,__LINE__,mtr)
+/** Gets a buffer page and declares its latching order level.
+@param space	tablespace identifier
+@param zip_size	compressed page size in bytes or 0 for uncompressed pages
+@param page_no	page number
+@param mode	latch mode
+@param mtr	mini-transaction handle
+@return the uncompressed page frame */
+# define btr_page_get(space,zip_size,page_no,mode,mtr) \
+	buf_block_get_frame(btr_block_get(space,zip_size,page_no,mode,mtr))
 #endif /* !UNIV_HOTBACKUP */
 /**************************************************************//**
 Gets the index id field of a page.
--- a/include/btr0btr.ic
+++ b/include/btr0btr.ic
@ -39,18 +39,21 @@ Created 6/2/1994 Heikki Tuuri
 Gets a buffer page and declares its latching order level. */
 UNIV_INLINE
 buf_block_t*
-btr_block_get(
-/*==========*/
-	ulint	space,		/*!< in: space id */
-	ulint	zip_size,	/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
-	ulint	page_no,	/*!< in: page number */
-	ulint	mode,		/*!< in: latch mode */
-	mtr_t*	mtr)		/*!< in: mtr */
+btr_block_get_func(
+/*===============*/
+	ulint		space,		/*!< in: space id */
+	ulint		zip_size,	/*!< in: compressed page size in bytes
+					or 0 for uncompressed pages */
+	ulint		page_no,	/*!< in: page number */
+	ulint		mode,		/*!< in: latch mode */
+	const char*	file,		/*!< in: file name */
+	ulint		line,		/*!< in: line where called */
+	mtr_t*		mtr)		/*!< in/out: mtr */
 {
 	buf_block_t*	block;

-	block = buf_page_get(space, zip_size, page_no, mode, mtr);
+	block = buf_page_get_gen(space, zip_size, page_no, mode,
+				 NULL, BUF_GET, file, line, mtr);

 	ut_a(srv_pass_corrupt_table || block);

@ -62,23 +65,6 @@ btr_block_get(
 	return(block);
 }

-/**************************************************************//**
-Gets a buffer page and declares its latching order level. */
-UNIV_INLINE
-page_t*
-btr_page_get(
-/*=========*/
-	ulint	space,		/*!< in: space id */
-	ulint	zip_size,	/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
-	ulint	page_no,	/*!< in: page number */
-	ulint	mode,		/*!< in: latch mode */
-	mtr_t*	mtr)		/*!< in: mtr */
-{
-	return(buf_block_get_frame(btr_block_get(space, zip_size, page_no,
-						 mode, mtr)));
-}
-
 /**************************************************************//**
 Sets the index id field of a page. */
 UNIV_INLINE
--- a/include/btr0cur.h
+++ b/include/btr0cur.h
@ -242,6 +242,22 @@ btr_cur_pessimistic_insert(
 	que_thr_t*	thr,	/*!< in: query thread or NULL */
 	mtr_t*		mtr);	/*!< in: mtr */
 /*************************************************************//**
+See if there is enough place in the page modification log to log
+an update-in-place.
+@return	TRUE if enough place */
+UNIV_INTERN
+ibool
+btr_cur_update_alloc_zip(
+/*=====================*/
+	page_zip_des_t*	page_zip,/*!< in/out: compressed page */
+	buf_block_t*	block,	/*!< in/out: buffer page */
+	dict_index_t*	index,	/*!< in: the index corresponding to the block */
+	ulint		length,	/*!< in: size needed */
+	ibool		create,	/*!< in: TRUE=delete-and-insert,
+				FALSE=update-in-place */
+	mtr_t*		mtr)	/*!< in: mini-transaction */
+	__attribute__((nonnull, warn_unused_result));
+/*************************************************************//**
 Updates a record when the update causes no size changes in its fields.
@return	DB_SUCCESS or error number */
 UNIV_INTERN
@ -504,7 +520,7 @@ Stores the fields in big_rec_vec to the tablespace and puts pointers to
 them in rec.  The extern flags in rec will have to be set beforehand.
 The fields are stored on pages allocated from leaf node
 file segment of the index tree.
-@return	DB_SUCCESS or error */
+@return	DB_SUCCESS or DB_OUT_OF_FILE_SPACE */
 UNIV_INTERN
 ulint
 btr_store_big_rec_extern_fields(
--- a/include/buf0buf.h
+++ b/include/buf0buf.h
@ -36,6 +36,7 @@ Created 11/5/1995 Heikki Tuuri
 #include "ut0rbt.h"
 #ifndef UNIV_HOTBACKUP
 #include "os0proc.h"
+#include "srv0srv.h"

 /** @name Modes for buf_page_get_gen */
 /* @{ */
@ -1301,7 +1302,10 @@ struct buf_block_struct{
 /**********************************************************************//**
 Compute the hash fold value for blocks in buf_pool->zip_hash. */
 /* @{ */
-#define BUF_POOL_ZIP_FOLD_PTR(ptr) ((ulint) (ptr) / UNIV_PAGE_SIZE)
+/* the fold should be relative when srv_buffer_pool_shm_key is enabled */
+#define BUF_POOL_ZIP_FOLD_PTR(ptr) (!srv_buffer_pool_shm_key\
+					?((ulint) (ptr) / UNIV_PAGE_SIZE)\
+					:((ulint) ((byte*)ptr - (byte*)(buf_pool->chunks->blocks->frame)) / UNIV_PAGE_SIZE))
 #define BUF_POOL_ZIP_FOLD(b) BUF_POOL_ZIP_FOLD_PTR((b)->frame)
 #define BUF_POOL_ZIP_FOLD_BPAGE(b) BUF_POOL_ZIP_FOLD((buf_block_t*) (b))
 /* @} */
--- a/include/buf0flu.h
+++ b/include/buf0flu.h
@ -76,6 +76,20 @@ buf_flush_init_for_writing(
 	ib_uint64_t	newest_lsn);	/*!< in: newest modification lsn
 					to the page */
 #ifndef UNIV_HOTBACKUP
+# if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+/********************************************************************//**
+Writes a flushable page asynchronously from the buffer pool to a file.
+NOTE: buf_pool_mutex and block->mutex must be held upon entering this
+function, and they will be released by this function after flushing.
+This is loosely based on buf_flush_batch() and buf_flush_page().
+@return TRUE if the page was flushed and the mutexes released */
+UNIV_INTERN
+ibool
+buf_flush_page_try(
+/*===============*/
+	buf_block_t*	block)		/*!< in/out: buffer control block */
+	__attribute__((nonnull, warn_unused_result));
+# endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
 /*******************************************************************//**
 This utility flushes dirty blocks from the end of the LRU list or flush_list.
 NOTE 1: in the case of an LRU flush the calling thread may own latches to
--- a/include/dict0dict.h
+++ b/include/dict0dict.h
@ -318,7 +318,8 @@ void
 dict_table_replace_index_in_foreign_list(
 /*=====================================*/
 	dict_table_t*	table,  /*!< in/out: table */
-	dict_index_t*	index);	/*!< in: index to be replaced */
+	dict_index_t*	index,	/*!< in: index to be replaced */
+	const trx_t*	trx);	/*!< in: transaction handle */
 /*********************************************************************//**
 Checks if a index is defined for a foreign key constraint. Index is a part
 of a foreign key constraint if the index is referenced by foreign key
@ -1053,20 +1054,13 @@ Calculates new estimates for table and index statistics. The statistics
 are used in query optimization. */
 UNIV_INTERN
 void
-dict_update_statistics_low(
-/*=======================*/
-	dict_table_t*	table,		/*!< in/out: table */
-	ibool		has_dict_mutex,	/*!< in: TRUE if the caller has the
-					dictionary mutex */
-	ibool		sync);
-/*********************************************************************//**
-Calculates new estimates for table and index statistics. The statistics
-are used in query optimization. */
-UNIV_INTERN
-void
 dict_update_statistics(
 /*===================*/
-	dict_table_t*	table,	/*!< in/out: table */
+	dict_table_t*	table,		/*!< in/out: table */
+	ibool		only_calc_if_missing_stats,	/*!< in: only
+					update/recalc the stats if they have
+					not been initialized yet, otherwise
+					do nothing */
 	ibool		sync);
 /********************************************************************//**
 Reserves the dictionary system mutex for MySQL. */
@ -1081,21 +1075,25 @@ void
 dict_mutex_exit_for_mysql(void);
 /*===========================*/
 /**********************************************************************//**
-Lock the appropriate mutex to protect index->stat_n_diff_key_vals[].
-index->id is used to pick the right mutex and it should not change
-before dict_index_stat_mutex_exit() is called on this index. */
+Lock the appropriate latch to protect a given table's statistics.
+table->id is used to pick the corresponding latch from a global array of
+latches. */
 UNIV_INTERN
 void
-dict_index_stat_mutex_enter(
-/*========================*/
-	const dict_index_t*	index);	/*!< in: index */
+dict_table_stats_lock(
+/*==================*/
+	const dict_table_t*	table,		/*!< in: table */
+	ulint			latch_mode);	/*!< in: RW_S_LATCH or
+						RW_X_LATCH */
 /**********************************************************************//**
-Unlock the appropriate mutex that protects index->stat_n_diff_key_vals[]. */
+Unlock the latch that has been locked by dict_table_stats_lock() */
 UNIV_INTERN
 void
-dict_index_stat_mutex_exit(
-/*=======================*/
-	const dict_index_t*	index);	/*!< in: index */
+dict_table_stats_unlock(
+/*====================*/
+	const dict_table_t*	table,		/*!< in: table */
+	ulint			latch_mode);	/*!< in: RW_S_LATCH or
+						RW_X_LATCH */
 /********************************************************************//**
 Checks if the database name in two table names is the same.
@return	TRUE if same db name */
--- a/include/fil0fil.h
+++ b/include/fil0fil.h
@ -737,6 +737,15 @@ fil_page_get_type(
 /*==============*/
 	const byte*	page);	/*!< in: file page */

+/*******************************************************************//**
+Returns TRUE if a single-table tablespace is being deleted.
+@return TRUE if being deleted */
+UNIV_INTERN
+ibool
+fil_tablespace_is_being_deleted(
+/*============================*/
+	ulint		id);	/*!< in: space id */
+
 /*************************************************************************
 Return local hash table informations. */

--- a/include/hash0hash.h
+++ b/include/hash0hash.h
@ -49,6 +49,28 @@ hash_table_t*
 hash_create(
 /*========*/
 	ulint	n);	/*!< in: number of array cells */
+
+/*************************************************************//**
+*/
+UNIV_INTERN
+ulint
+hash_create_needed(
+/*===============*/
+	ulint	n);
+
+UNIV_INTERN
+void
+hash_create_init(
+/*=============*/
+	hash_table_t*	table,
+	ulint		n);
+
+UNIV_INTERN
+void
+hash_create_reuse(
+/*==============*/
+	hash_table_t*	table);
+
 #ifndef UNIV_HOTBACKUP
 /*************************************************************//**
 Creates a mutex array to protect a hash table. */
@ -328,6 +350,33 @@ do {\
 	}\
 } while (0)

+/********************************************************************//**
+Align nodes with moving location.*/
+#define HASH_OFFSET(TABLE, NODE_TYPE, PTR_NAME, FADDR, FOFFSET, BOFFSET) \
+do {\
+	ulint		i2222;\
+	ulint		cell_count2222;\
+\
+	cell_count2222 = hash_get_n_cells(TABLE);\
+\
+	for (i2222 = 0; i2222 < cell_count2222; i2222++) {\
+		NODE_TYPE*	node2222;\
+\
+		if ((TABLE)->array[i2222].node) \
+			(TABLE)->array[i2222].node = (void*)((byte*)(TABLE)->array[i2222].node \
+			+ (((TABLE)->array[i2222].node > (void*)FADDR)?FOFFSET:BOFFSET));\
+		node2222 = HASH_GET_FIRST((TABLE), i2222);\
+\
+		while (node2222) {\
+			if (node2222->PTR_NAME) \
+				node2222->PTR_NAME = (void*)((byte*)(node2222->PTR_NAME) \
+				+ ((((void*)node2222->PTR_NAME) > (void*)FADDR)?FOFFSET:BOFFSET));\
+\
+			node2222 = node2222->PTR_NAME;\
+		}\
+	}\
+} while (0)
+
 /************************************************************//**
 Gets the mutex index for a fold value in a hash table.
@return	mutex number */
--- a/include/ibuf0ibuf.h
+++ b/include/ibuf0ibuf.h
@ -48,6 +48,11 @@ typedef enum {
 /** Operations that can currently be buffered. */
 extern ibuf_use_t	ibuf_use;

+#if defined UNIV_DEBUG || defined UNIV_IBUF_DEBUG
+/** Flag to control insert buffer debugging. */
+extern uint		ibuf_debug;
+#endif /* UNIV_DEBUG || UNIV_IBUF_DEBUG */
+
 /** The insert buffer control structure */
 extern ibuf_t*		ibuf;

--- a/include/log0log.h
+++ b/include/log0log.h
@ -672,6 +672,9 @@ extern log_t*	log_sys;
 					when mysqld is first time started
 					on the restored database, it can
 					print helpful info for the user */
+#define LOG_FILE_OS_FILE_LOG_BLOCK_SIZE 64
+					/* extend to record log_block_size
+					of XtraDB. 0 means default 512 */
 #define	LOG_FILE_ARCH_COMPLETED	OS_FILE_LOG_BLOCK_SIZE
 					/* this 4-byte field is TRUE when
 					the writing of an archived log file
--- a/include/os0file.h
+++ b/include/os0file.h
@ -107,7 +107,7 @@ whole block gets written. This should be true even in most cases of a crash:
 if this fails for a log block, then it is equivalent to a media failure in the
 log. */

-#define OS_FILE_LOG_BLOCK_SIZE		512
+#define OS_FILE_LOG_BLOCK_SIZE		srv_log_block_size

 /** Options for file_create @{ */
 #define	OS_FILE_OPEN			51
@ -188,6 +188,8 @@ extern ulint	os_n_file_reads;
 extern ulint	os_n_file_writes;
 extern ulint	os_n_fsyncs;

+extern ulint	srv_log_block_size;
+
 /* File types for directory entry data type */

 enum os_file_type_enum{
--- a/include/os0proc.h
+++ b/include/os0proc.h
@ -32,6 +32,11 @@ Created 9/30/1995 Heikki Tuuri
 #ifdef UNIV_LINUX
 #include <sys/ipc.h>
 #include <sys/shm.h>
+#else
+# if defined HAVE_SYS_IPC_H && HAVE_SYS_SHM_H
+#include <sys/ipc.h>
+#include <sys/shm.h>
+# endif
 #endif

 typedef void*			os_process_t;
@ -70,6 +75,29 @@ os_mem_free_large(
 	ulint	size);			/*!< in: size returned by
 					os_mem_alloc_large() */

+
+/****************************************************************//**
+Allocates or attaches and reuses shared memory segment.
+The content is not cleared automatically.
+@return	allocated memory */
+UNIV_INTERN
+void*
+os_shm_alloc(
+/*=========*/
+	ulint*	n,			/*!< in/out: number of bytes */
+	uint	key,
+	ibool*	is_new);
+
+/****************************************************************//**
+Detach shared memory segment. */
+UNIV_INTERN
+void
+os_shm_free(
+/*========*/
+	void	*ptr,			/*!< in: pointer returned by
+					os_shm_alloc() */
+	ulint	size);			/*!< in: size returned by
+					os_shm_alloc() */
 #ifndef UNIV_NONINL
 #include "os0proc.ic"
 #endif
--- a/include/os0sync.h
+++ b/include/os0sync.h
@ -189,14 +189,14 @@ os_event_wait_low(

 /**********************************************************//**
 Waits for an event object until it is in the signaled state or
-a timeout is exceeded. In Unix the timeout is always infinite.
+a timeout is exceeded.
@return	0 if success, OS_SYNC_TIME_EXCEEDED if timeout was exceeded */
 UNIV_INTERN
 ulint
 os_event_wait_time(
 /*===============*/
 	os_event_t	event,	/*!< in: event to wait */
-	ulint		time);	/*!< in: timeout in microseconds, or
+	ulint		wtime);	/*!< in: timeout in microseconds, or
 				OS_SYNC_INFINITE_TIME */
 #ifdef __WIN__
 /**********************************************************//**
--- a/include/row0ins.h
+++ b/include/row0ins.h
@ -84,9 +84,10 @@ ulint
 row_ins_index_entry(
 /*================*/
 	dict_index_t*	index,	/*!< in: index */
-	dtuple_t*	entry,	/*!< in: index entry to insert */
+	dtuple_t*	entry,	/*!< in/out: index entry to insert */
 	ulint		n_ext,	/*!< in: number of externally stored columns */
-	ibool		foreign,/*!< in: TRUE=check foreign key constraints */
+	ibool		foreign,/*!< in: TRUE=check foreign key constraints
+				(foreign=FALSE only during CREATE INDEX) */
 	que_thr_t*	thr);	/*!< in: query thread */
 /***********************************************************//**
 Inserts a row to a table. This is a high-level function used in
--- a/include/row0mysql.h
+++ b/include/row0mysql.h
@ -535,6 +535,10 @@ struct mysql_row_templ_struct {
 					Innobase record in the current index;
 					not defined if template_type is
 					ROW_MYSQL_WHOLE_ROW */
+	ulint	clust_rec_field_no;	/*!< field number of the column in an
+					Innobase record in the clustered index;
+					not defined if template_type is
+					ROW_MYSQL_WHOLE_ROW */
 	ulint	mysql_col_offset;	/*!< offset of the column in the MySQL
 					row format */
 	ulint	mysql_col_len;		/*!< length of the column in the MySQL
--- a/include/row0upd.h
+++ b/include/row0upd.h
@ -126,8 +126,8 @@ UNIV_INTERN
 void
 row_upd_index_entry_sys_field(
 /*==========================*/
-	const dtuple_t*	entry,	/*!< in: index entry, where the memory buffers
-				for sys fields are already allocated:
+	dtuple_t*	entry,	/*!< in/out: index entry, where the memory
+				buffers for sys fields are already allocated:
 				the function just copies the new values to
 				them */
 	dict_index_t*	index,	/*!< in: clustered index */
@ -167,8 +167,11 @@ row_upd_changes_field_size_or_external(
 	const upd_t*	update);/*!< in: update vector */
 #endif /* !UNIV_HOTBACKUP */
 /***********************************************************//**
-Replaces the new column values stored in the update vector to the record
-given. No field size changes are allowed. */
+Replaces the new column values stored in the update vector to the
+record given. No field size changes are allowed. This function is
+usually invoked on a clustered index. The only use case for a
+secondary index is row_ins_sec_index_entry_by_modify() or its
+counterpart in ibuf_insert_to_index_page(). */
 UNIV_INTERN
 void
 row_upd_rec_in_place(
--- a/include/srv0srv.h
+++ b/include/srv0srv.h
@ -57,6 +57,9 @@ extern const char	srv_mysql50_table_name_prefix[9];
 thread starts running */
 extern os_event_t	srv_lock_timeout_thread_event;

+/* This event is set at shutdown to wakeup threads from sleep */
+extern os_event_t	srv_shutdown_event;
+
 /* If the last data file is auto-extended, we add this many pages to it
 at a time */
 #define SRV_AUTO_EXTEND_INCREMENT	\
@ -156,6 +159,10 @@ extern ulint	srv_buf_pool_curr_size;	/*!< current size in bytes */
 extern ulint	srv_mem_pool_size;
 extern ulint	srv_lock_table_size;

+extern uint	srv_buffer_pool_shm_key;
+extern ibool	srv_buffer_pool_shm_is_reused;
+extern ibool	srv_buffer_pool_shm_checksum;
+
 extern ibool	srv_thread_concurrency_timer_based;

 extern ulint	srv_n_file_io_threads;
--- a/include/srv0start.h
+++ b/include/srv0start.h
@ -131,4 +131,7 @@ extern	enum srv_shutdown_state	srv_shutdown_state;
 /** Log 'spaces' have id's >= this */
 #define SRV_LOG_SPACE_FIRST_ID		0xFFFFFFF0UL

+/** reserved for extra system tables */
+#define SRV_EXTRA_SYS_SPACE_FIRST_ID	0xFFFFFFE0UL
+
 #endif
--- a/include/trx0sys.h
+++ b/include/trx0sys.h
@ -470,7 +470,7 @@ trx_sys_file_format_id_to_name(

 /* Space id and page no where the trx system file copy resides */
 #define	TRX_SYS_SPACE	0	/* the SYSTEM tablespace */
-#define	TRX_DOUBLEWRITE_SPACE	1	/* the doublewrite buffer tablespace if used */
+#define	TRX_DOUBLEWRITE_SPACE	0xFFFFFFE0UL	/* the doublewrite buffer tablespace if used */
 #define	TRX_SYS_SPACE_MAX	9	/* reserved max space id for system tablespaces */
 #include "fsp0fsp.h"
 #define	TRX_SYS_PAGE_NO	FSP_TRX_SYS_PAGE_NO
--- a/include/trx0sys.ic
+++ b/include/trx0sys.ic
@ -81,7 +81,7 @@ trx_sys_sys_space(
 {
 	if (srv_doublewrite_file) {
 		/* several spaces are reserved */
-		return((ibool)(space <= TRX_SYS_SPACE_MAX));
+		return((ibool)(space == TRX_SYS_SPACE || space == TRX_DOUBLEWRITE_SPACE));
 	} else {
 		return((ibool)(space == TRX_SYS_SPACE));
 	}
--- a/include/univ.i
+++ b/include/univ.i
@ -46,10 +46,10 @@ Created 1/20/1994 Heikki Tuuri

 #define INNODB_VERSION_MAJOR	1
 #define INNODB_VERSION_MINOR	0
-#define INNODB_VERSION_BUGFIX	13
+#define INNODB_VERSION_BUGFIX	14

 #ifndef PERCONA_INNODB_VERSION
-#define PERCONA_INNODB_VERSION 11.6
+#define PERCONA_INNODB_VERSION 12.5
 #endif


@ -371,6 +371,9 @@ typedef unsigned long long int	ullint;
 /* Maximum value for ib_uint64_t */
 #define IB_ULONGLONG_MAX	((ib_uint64_t) (~0ULL))

+/* THe 'undefined' value for ullint */
+#define ULLINT_UNDEFINED        ((ullint)(-1))
+
 /* This 'ibool' type is used within Innobase. Remember that different included
 headers may define 'bool' differently. Do not assume that 'bool' is a ulint! */
 #define ibool			ulint
--- a/include/ut0lst.h
+++ b/include/ut0lst.h
@ -257,5 +257,48 @@ do {									\
 	ut_a(ut_list_node_313 == NULL);					\
 } while (0)

+/********************************************************************//**
+Align nodes with moving location.
+@param NAME		the name of the list
+@param TYPE		node type
+@param BASE		base node (not a pointer to it)
+@param OFFSET		offset moved */
+#define UT_LIST_OFFSET(NAME, TYPE, BASE, FADDR, FOFFSET, BOFFSET)	\
+do {									\
+	ulint	ut_list_i_313;						\
+	TYPE*	ut_list_node_313;					\
+									\
+	if ((BASE).start)						\
+		(BASE).start = (void*)((byte*)((BASE).start)			\
+			+ (((void*)((BASE).start) > (void*)FADDR)?FOFFSET:BOFFSET));\
+	if ((BASE).end)							\
+		(BASE).end   = (void*)((byte*)((BASE).end)			\
+			+ (((void*)((BASE).end) > (void*)FADDR)?FOFFSET:BOFFSET));\
+									\
+	ut_list_node_313 = (BASE).start;				\
+									\
+	for (ut_list_i_313 = (BASE).count; ut_list_i_313--; ) {		\
+		ut_a(ut_list_node_313);					\
+		if ((ut_list_node_313->NAME).prev)			\
+			(ut_list_node_313->NAME).prev = (void*)((byte*)((ut_list_node_313->NAME).prev)\
+				+ (((void*)((ut_list_node_313->NAME).prev) > (void*)FADDR)?FOFFSET:BOFFSET));\
+		if ((ut_list_node_313->NAME).next)			\
+			(ut_list_node_313->NAME).next =	(void*)((byte*)((ut_list_node_313->NAME).next)\
+				+ (((void*)((ut_list_node_313->NAME).next)> (void*)FADDR)?FOFFSET:BOFFSET));\
+		ut_list_node_313 = (ut_list_node_313->NAME).next;	\
+	}								\
+									\
+	ut_a(ut_list_node_313 == NULL);					\
+									\
+	ut_list_node_313 = (BASE).end;					\
+									\
+	for (ut_list_i_313 = (BASE).count; ut_list_i_313--; ) {		\
+		ut_a(ut_list_node_313);					\
+		ut_list_node_313 = (ut_list_node_313->NAME).prev;	\
+	}								\
+									\
+	ut_a(ut_list_node_313 == NULL);					\
+} while (0)
+
 #endif

--- a/log/log0log.c
+++ b/log/log0log.c
@ -1184,6 +1184,9 @@ log_group_file_header_flush(
 	/* Wipe over possible label of ibbackup --restore */
 	memcpy(buf + LOG_FILE_WAS_CREATED_BY_HOT_BACKUP, "    ", 4);

+	mach_write_to_4(buf + LOG_FILE_OS_FILE_LOG_BLOCK_SIZE,
+			srv_log_block_size);
+
 	dest_offset = nth_file * group->file_size;

 #ifdef UNIV_DEBUG
@ -1777,9 +1780,7 @@ log_group_checkpoint(
 	ulint		i;

 	ut_ad(mutex_own(&(log_sys->mutex)));
-#if LOG_CHECKPOINT_SIZE > OS_FILE_LOG_BLOCK_SIZE
-# error "LOG_CHECKPOINT_SIZE > OS_FILE_LOG_BLOCK_SIZE"
-#endif
+	ut_a(LOG_CHECKPOINT_SIZE <= OS_FILE_LOG_BLOCK_SIZE);

 	buf = group->checkpoint_buf;

@ -3102,6 +3103,7 @@ logs_empty_and_mark_files_at_shutdown(void)
 	algorithm only works if the server is idle at shutdown */

 	srv_shutdown_state = SRV_SHUTDOWN_CLEANUP;
+	os_event_set(srv_shutdown_event);
 loop:
 	os_thread_sleep(100000);

--- a/log/log0recv.c
+++ b/log/log0recv.c
@ -2899,6 +2899,7 @@ recv_init_crash_recovery(void)
 /*==========================*/
 {
 	ut_a(!recv_needed_recovery);
+	ut_a(!srv_buffer_pool_shm_is_reused);

 	recv_needed_recovery = TRUE;

@ -2956,6 +2957,7 @@ recv_recovery_from_checkpoint_start_func(
 	log_group_t*	max_cp_group;
 	log_group_t*	up_to_date_group;
 	ulint		max_cp_field;
+	ulint		log_hdr_log_block_size;
 	ib_uint64_t	checkpoint_lsn;
 	ib_uint64_t	checkpoint_no;
 	ib_uint64_t	old_scanned_lsn;
@ -3057,6 +3059,20 @@ recv_recovery_from_checkpoint_start_func(
 		       log_hdr_buf, max_cp_group);
 	}

+	log_hdr_log_block_size
+		= mach_read_from_4(log_hdr_buf + LOG_FILE_OS_FILE_LOG_BLOCK_SIZE);
+	if (log_hdr_log_block_size == 0) {
+		/* 0 means default value */
+		log_hdr_log_block_size = 512;
+	}
+	if (log_hdr_log_block_size != srv_log_block_size) {
+		fprintf(stderr,
+			"InnoDB: Error: The block size of ib_logfile (%lu) "
+			"is not equal to innodb_log_block_size.\n",
+			log_hdr_log_block_size);
+		return(DB_ERROR);
+	}
+
 #ifdef UNIV_LOG_ARCHIVE
 	group = UT_LIST_GET_FIRST(log_sys->log_groups);

--- a/os/os0file.c
+++ b/os/os0file.c
@ -1222,10 +1222,12 @@ UNIV_INTERN
 void
 os_file_set_nocache(
 /*================*/
-	int		fd,		/*!< in: file descriptor to alter */
-	const char*	file_name,	/*!< in: file name, used in the
-					diagnostic message */
-	const char*	operation_name)	/*!< in: "open" or "create"; used in the
+	int		fd		/*!< in: file descriptor to alter */
+	__attribute__((unused)),
+	const char*	file_name	/*!< in: used in the diagnostic message */
+	__attribute__((unused)),
+	const char*	operation_name __attribute__((unused)))
+					/*!< in: "open" or "create"; used in the
 					diagnostic message */
 {
 	/* some versions of Solaris may not have DIRECTIO_ON */
@ -2355,7 +2357,10 @@ _os_file_read(
 	ulint		i;
 #endif /* !UNIV_HOTBACKUP */

+	/* On 64-bit Windows, ulint is 64 bits. But offset and n should be
+	no more than 32 bits. */
 	ut_a((offset & 0xFFFFFFFFUL) == offset);
+	ut_a((n & 0xFFFFFFFFUL) == n);

 	os_n_file_reads++;
 	os_bytes_read_since_printout += n;
@ -2479,7 +2484,10 @@ os_file_read_no_error_handling(
 	ulint		i;
 #endif /* !UNIV_HOTBACKUP */

+	/* On 64-bit Windows, ulint is 64 bits. But offset and n should be
+	no more than 32 bits. */
 	ut_a((offset & 0xFFFFFFFFUL) == offset);
+	ut_a((n & 0xFFFFFFFFUL) == n);

 	os_n_file_reads++;
 	os_bytes_read_since_printout += n;
@ -2609,7 +2617,10 @@ os_file_write(
 	ulint		i;
 #endif /* !UNIV_HOTBACKUP */

-	ut_a((offset & 0xFFFFFFFF) == offset);
+	/* On 64-bit Windows, ulint is 64 bits. But offset and n should be
+	no more than 32 bits. */
+	ut_a((offset & 0xFFFFFFFFUL) == offset);
+	ut_a((n & 0xFFFFFFFFUL) == n);

 	os_n_file_writes++;

@ -3383,12 +3394,14 @@ os_aio_array_reserve_slot(
 	trx_t*		trx)
 {
 	os_aio_slot_t*	slot;
-#ifdef WIN_ASYNC_IO
-	OVERLAPPED*	control;
-#endif
 	ulint		i;
 	ulint		slots_per_seg;
 	ulint		local_seg;
+#ifdef WIN_ASYNC_IO
+	OVERLAPPED*	control;
+
+	ut_a((len & 0xFFFFFFFFUL) == len);
+#endif

 	/* No need of a mutex. Only reading constant fields */
 	slots_per_seg = array->n_slots / array->n_segments;
@ -3690,6 +3703,9 @@ os_aio(
 	ut_ad(n % OS_FILE_LOG_BLOCK_SIZE == 0);
 	ut_ad(offset % OS_FILE_LOG_BLOCK_SIZE == 0);
 	ut_ad(os_aio_validate());
+#ifdef WIN_ASYNC_IO
+	ut_ad((n & 0xFFFFFFFFUL) == n);
+#endif

 	wake_later = mode & OS_AIO_SIMULATED_WAKE_LATER;
 	mode = mode & (~OS_AIO_SIMULATED_WAKE_LATER);
@ -3935,16 +3951,18 @@ os_aio_windows_handle(
 		/* retry failed read/write operation synchronously.
 		No need to hold array->mutex. */

+		ut_a((slot->len & 0xFFFFFFFFUL) == slot->len);
+
 		switch (slot->type) {
 		case OS_FILE_WRITE:
 			ret = WriteFile(slot->file, slot->buf,
-					slot->len, &len,
+					(DWORD) slot->len, &len,
 					&(slot->control));

 			break;
 		case OS_FILE_READ:
 			ret = ReadFile(slot->file, slot->buf,
-				       slot->len, &len,
+				       (DWORD) slot->len, &len,
 				       &(slot->control));

 			break;
--- a/os/os0proc.c
+++ b/os/os0proc.c
@ -229,3 +229,173 @@ os_mem_free_large(
 	}
 #endif
 }
+
+/****************************************************************//**
+Allocates or attaches and reuses shared memory segment.
+The content is not cleared automatically.
+@return	allocated memory */
+UNIV_INTERN
+void*
+os_shm_alloc(
+/*=========*/
+	ulint*	n,			/*!< in/out: number of bytes */
+	uint	key,
+	ibool*	is_new)
+{
+	void*	ptr;
+#if defined HAVE_SYS_IPC_H && HAVE_SYS_SHM_H
+	ulint	size;
+	int	shmid;
+
+	*is_new = FALSE;
+	fprintf(stderr,
+		"InnoDB: The shared memory segment containing the buffer pool is: key  %#x (%d).\n",
+		key, key);
+# if defined HAVE_LARGE_PAGES && defined UNIV_LINUX
+	if (!os_use_large_pages || !os_large_page_size) {
+		goto skip;
+	}
+
+	/* Align block size to os_large_page_size */
+	ut_ad(ut_is_2pow(os_large_page_size));
+	size = ut_2pow_round(*n + (os_large_page_size - 1),
+			     os_large_page_size);
+
+	shmid = shmget((key_t)key, (size_t)size,
+			IPC_CREAT | IPC_EXCL | SHM_HUGETLB | SHM_R | SHM_W);
+	if (shmid < 0) {
+		if (errno == EEXIST) {
+			fprintf(stderr,
+				"InnoDB: HugeTLB: The shared memory segment exists.\n");
+			shmid = shmget((key_t)key, (size_t)size,
+					SHM_HUGETLB | SHM_R | SHM_W);
+			if (shmid < 0) {
+				fprintf(stderr,
+					"InnoDB: HugeTLB: Warning: Failed to allocate %lu bytes. (reuse) errno %d\n",
+					size, errno);
+				goto skip;
+			} else {
+				fprintf(stderr,
+					"InnoDB: HugeTLB: The existent shared memory segment is used.\n");
+			}
+		} else {
+			fprintf(stderr,
+				"InnoDB: HugeTLB: Warning: Failed to allocate %lu bytes. (new) errno %d\n",
+				size, errno);
+			goto skip;
+		}
+	} else {
+		*is_new = TRUE;
+		fprintf(stderr,
+			"InnoDB: HugeTLB: A new shared memory segment has been created .\n");
+	}
+
+	ptr = shmat(shmid, NULL, 0);
+	if (ptr == (void *)-1) {
+		fprintf(stderr,
+			"InnoDB: HugeTLB: Warning: Failed to attach shared memory segment, errno %d\n",
+			errno);
+		ptr = NULL;
+	}
+
+	if (ptr) {
+		*n = size;
+		os_fast_mutex_lock(&ut_list_mutex);
+		ut_total_allocated_memory += size;
+		os_fast_mutex_unlock(&ut_list_mutex);
+		UNIV_MEM_ALLOC(ptr, size);
+		return(ptr);
+	}
+skip:
+	*is_new = FALSE;
+# endif /* HAVE_LARGE_PAGES && defined UNIV_LINUX */
+# ifdef HAVE_GETPAGESIZE
+	size = getpagesize();
+# else
+	size = UNIV_PAGE_SIZE;
+# endif
+	/* Align block size to system page size */
+	ut_ad(ut_is_2pow(size));
+	size = *n = ut_2pow_round(*n + (size - 1), size);
+
+	shmid = shmget((key_t)key, (size_t)size,
+			IPC_CREAT | IPC_EXCL | SHM_R | SHM_W);
+	if (shmid < 0) {
+		if (errno == EEXIST) {
+			fprintf(stderr,
+				"InnoDB: A shared memory segment containing the buffer pool seems to already exist.\n");
+			shmid = shmget((key_t)key, (size_t)size,
+					SHM_R | SHM_W);
+			if (shmid < 0) {
+				fprintf(stderr,
+					"InnoDB: Warning: Failed to allocate %lu bytes. (reuse) errno %d\n",
+					size, errno);
+				ptr = NULL;
+				goto end;
+			} else {
+				fprintf(stderr,
+					"InnoDB: The existent shared memory segment is used.\n");
+			}
+		} else {
+			fprintf(stderr,
+				"InnoDB: Warning: Failed to allocate %lu bytes. (new) errno %d\n",
+				size, errno);
+			ptr = NULL;
+			goto end;
+		}
+	} else {
+		*is_new = TRUE;
+		fprintf(stderr,
+			"InnoDB: A new shared memory segment has been created.\n");
+	}
+
+	ptr = shmat(shmid, NULL, 0);
+	if (ptr == (void *)-1) {
+		fprintf(stderr,
+			"InnoDB: Warning: Failed to attach shared memory segment, errno %d\n",
+			errno);
+		ptr = NULL;
+	}
+
+	if (ptr) {
+		*n = size;
+		os_fast_mutex_lock(&ut_list_mutex);
+		ut_total_allocated_memory += size;
+		os_fast_mutex_unlock(&ut_list_mutex);
+		UNIV_MEM_ALLOC(ptr, size);
+	}
+end:
+#else /* HAVE_SYS_IPC_H && HAVE_SYS_SHM_H */
+	fprintf(stderr, "InnoDB: shared memory segment is not supported.\n");
+	ptr = NULL;
+#endif /* HAVE_SYS_IPC_H && HAVE_SYS_SHM_H */
+	return(ptr);
+}
+
+/****************************************************************//**
+Detach shared memory segment. */
+UNIV_INTERN
+void
+os_shm_free(
+/*========*/
+	void	*ptr,			/*!< in: pointer returned by
+					os_shm_alloc() */
+	ulint	size)			/*!< in: size returned by
+					os_shm_alloc() */
+{
+	os_fast_mutex_lock(&ut_list_mutex);
+	ut_a(ut_total_allocated_memory >= size);
+	os_fast_mutex_unlock(&ut_list_mutex);
+
+#if defined HAVE_SYS_IPC_H && HAVE_SYS_SHM_H
+	if (!shmdt(ptr)) {
+		os_fast_mutex_lock(&ut_list_mutex);
+		ut_a(ut_total_allocated_memory >= size);
+		ut_total_allocated_memory -= size;
+		os_fast_mutex_unlock(&ut_list_mutex);
+		UNIV_MEM_FREE(ptr, size);
+	}
+#else /* HAVE_SYS_IPC_H && HAVE_SYS_SHM_H */
+	fprintf(stderr, "InnoDB: shared memory segment is not supported.\n");
+#endif /* HAVE_SYS_IPC_H && HAVE_SYS_SHM_H */
+}
--- a/os/os0sync.c
+++ b/os/os0sync.c
@ -31,6 +31,9 @@ Created 9/6/1995 Heikki Tuuri

 #ifdef __WIN__
 #include <windows.h>
+#else
+#include <sys/time.h>
+#include <time.h>
 #endif

 #include "ut0mem.h"
@ -407,14 +410,14 @@ os_event_wait_low(

 /**********************************************************//**
 Waits for an event object until it is in the signaled state or
-a timeout is exceeded. In Unix the timeout is always infinite.
+a timeout is exceeded.
@return	0 if success, OS_SYNC_TIME_EXCEEDED if timeout was exceeded */
 UNIV_INTERN
 ulint
 os_event_wait_time(
 /*===============*/
 	os_event_t	event,	/*!< in: event to wait */
-	ulint		time)	/*!< in: timeout in microseconds, or
+	ulint		wtime)	/*!< in: timeout in microseconds, or
 				OS_SYNC_INFINITE_TIME */
 {
 #ifdef __WIN__
@ -422,8 +425,8 @@ os_event_wait_time(

 	ut_a(event);

-	if (time != OS_SYNC_INFINITE_TIME) {
-		err = WaitForSingleObject(event->handle, (DWORD) time / 1000);
+	if (wtime != OS_SYNC_INFINITE_TIME) {
+		err = WaitForSingleObject(event->handle, (DWORD) wtime / 1000);
 	} else {
 		err = WaitForSingleObject(event->handle, INFINITE);
 	}
@ -439,13 +442,47 @@ os_event_wait_time(
 		return(1000000); /* dummy value to eliminate compiler warn. */
 	}
 #else
-	UT_NOT_USED(time);
+	int		err;
+	int		ret = 0;
+	ulint		tmp;
+	ib_int64_t	old_count;
+	struct timeval	tv_start;
+	struct timespec	timeout;
+
+	if (wtime == OS_SYNC_INFINITE_TIME) {
+		os_event_wait(event);
+		return 0;
+	}
+
+	/* Compute the absolute point in time at which to time out. */
+	gettimeofday(&tv_start, NULL);
+	tmp = tv_start.tv_usec + wtime;
+	timeout.tv_sec = tv_start.tv_sec + (tmp / 1000000);
+	timeout.tv_nsec = (tmp % 1000000) * 1000;
+
+	os_fast_mutex_lock(&(event->os_mutex));
+	old_count = event->signal_count;
+
+	for (;;) {
+		if (event->is_set == TRUE || event->signal_count != old_count)
+			break;
+
+		err = pthread_cond_timedwait(&(event->cond_var),
+					     &(event->os_mutex), &timeout);
+		if (err == ETIMEDOUT) {
+			ret = OS_SYNC_TIME_EXCEEDED;
+			break;
+		}
+	}

-	/* In Posix this is just an ordinary, infinite wait */
+	os_fast_mutex_unlock(&(event->os_mutex));

-	os_event_wait(event);
+	if (srv_shutdown_state == SRV_SHUTDOWN_EXIT_THREADS) {
+
+		os_thread_exit(NULL);
+	}

-	return(0);
+	return ret;
 #endif
 }

--- a/percona-suite/have_response_time_distribution.inc
+++ b/percona-suite/have_response_time_distribution.inc
@ -0,0 +1,4 @@
+-- require r/have_response_time_distribution.require
+disable_query_log;
+show variables like 'have_response_time_distribution';
+enable_query_log;
--- a/percona-suite/have_response_time_distribution.require
+++ b/percona-suite/have_response_time_distribution.require
@ -0,0 +1,2 @@
+Variable_name	Value
+have_response_time_distribution	YES
--- a/percona-suite/log_connection_error.patch/percona_log_connection_error-master.opt
+++ b/percona-suite/log_connection_error.patch/percona_log_connection_error-master.opt
@ -0,0 +1 @@
+--log-error
--- a/percona-suite/log_connection_error.patch/percona_log_connection_error.result
+++ b/percona-suite/log_connection_error.patch/percona_log_connection_error.result
@ -0,0 +1,15 @@
+SET @old_max_connections = @@max_connections;
+SET @old_log_warnings = @@log_warnings;
+SET GLOBAL max_connections=2;
+SET GLOBAL LOG_WARNINGS = 0;
+connect(localhost,root,,test,port,socket);
+ERROR HY000: Too many connections
+SET GLOBAL LOG_WARNINGS = 1;
+connect(localhost,root,,test,port,socket);
+ERROR HY000: Too many connections
+SET GLOBAL LOG_WARNINGS = 0;
+connect(localhost,root,,test,port,socket);
+ERROR HY000: Too many connections
+SET GLOBAL max_connections = @old_max_connections;
+SET GLOBAL log_warnings = @old_log_warnings;
+1
--- a/percona-suite/log_connection_error.patch/percona_log_connection_error.test
+++ b/percona-suite/log_connection_error.patch/percona_log_connection_error.test
@ -0,0 +1,52 @@
+--source include/not_embedded.inc
+
+connect (main,localhost,root,,);
+connection main;
+SET @old_max_connections = @@max_connections;
+SET @old_log_warnings = @@log_warnings;
+SET GLOBAL max_connections=2;
+let $port=`SELECT Variable_value FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE Variable_name LIKE 'port'`;
+let $socket=`SELECT Variable_value FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE Variable_name LIKE 'socket'`;
+
+SET GLOBAL LOG_WARNINGS = 0;
+--connect (conn0,localhost,root,,)
+connection conn0;
+replace_result $port port $socket socket;
+--error 1040
+--connect(conn1,localhost,root,,)
+disconnect conn0;
+SLEEP 0.1; # tsarev: hack, but i don't know (and didn't find) how right
+
+connection main;
+SET GLOBAL LOG_WARNINGS = 1;
+--connect (conn1,localhost,root,,)
+replace_result $port port $socket socket;
+--error 1040
+--connect (conn0,localhost,root,,)
+disconnect conn1;
+SLEEP 0.1; # tsarev: hack, but i don't know (and didn't find) how right
+
+connection main;
+SET GLOBAL LOG_WARNINGS = 0;
+--connect (conn0,localhost,root,,)
+replace_result $port port $socket socket;
+--error 1040
+--connect(conn1,localhost,root,,)
+disconnect conn0;
+SLEEP 0.1; # tsarev: hack, but i don't know (and didn't find) how right
+
+connection main;
+SET GLOBAL max_connections = @old_max_connections;
+SET GLOBAL log_warnings = @old_log_warnings;
+let $log_error_= `SELECT @@GLOBAL.log_error`;
+if(!`select LENGTH('$log_error_')`)
+{
+  # MySQL Server on windows is started with --console and thus
+  # does not know the location of its .err log, use default location
+  let $log_error_ = $MYSQLTEST_VARDIR/log/mysqld.1.err;
+}
+# Assign env variable LOG_ERROR
+let LOG_ERROR=$log_error_;
+
+let cmd=cat $log_error | grep "Too many connections" | wc -l;
+exec $cmd;
--- a/percona-suite/percona_innodb_buffer_pool_shm-master.opt
+++ b/percona-suite/percona_innodb_buffer_pool_shm-master.opt
@ -0,0 +1,2 @@
+--innodb_buffer_pool_shm_key=123456
+--innodb=FORCE
--- a/percona-suite/percona_innodb_buffer_pool_shm.result
+++ b/percona-suite/percona_innodb_buffer_pool_shm.result
@ -0,0 +1,8 @@
+show variables like 'innodb_buffer_pool_shm%';
+Variable_name	Value
+innodb_buffer_pool_shm_checksum	ON
+innodb_buffer_pool_shm_key	123456
+show variables like 'innodb_buffer_pool_shm%';
+Variable_name	Value
+innodb_buffer_pool_shm_checksum	ON
+innodb_buffer_pool_shm_key	123456
--- a/percona-suite/percona_innodb_buffer_pool_shm.test
+++ b/percona-suite/percona_innodb_buffer_pool_shm.test
@ -0,0 +1,19 @@
+--source include/big_test.inc
+--source include/have_innodb.inc
+show variables like 'innodb_buffer_pool_shm%';
+
+#clean shutdown (restart_mysqld.inc is not clean if over 10 sec...)
+--write_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+wait
+EOF
+shutdown_server 120;
+--append_file $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
+restart
+EOF
+--enable_reconnect
+--source include/wait_until_connected_again.inc
+--disable_reconnect
+
+show variables like 'innodb_buffer_pool_shm%';
+--sleep 1
+--system ipcrm -M 123456
--- a/percona-suite/percona_log_connection_error-master.opt
+++ b/percona-suite/percona_log_connection_error-master.opt
@ -1 +0,0 @@
--log-error
--- a/percona-suite/percona_server_variables.result
+++ b/percona-suite/percona_server_variables.result
@ -36,10 +36,12 @@ delayed_insert_limit	Value
 delayed_insert_timeout	Value
 delayed_queue_size	Value
 div_precision_increment	Value
+enable_query_response_time_stats	Value
 engine_condition_pushdown	Value
 error_count	Value
 event_scheduler	Value
 expire_logs_days	Value
+fast_index_creation	Value
 flush	Value
 flush_time	Value
 foreign_key_checks	Value
@ -62,6 +64,7 @@ have_ndbcluster	Value
 have_openssl	Value
 have_partitioning	Value
 have_query_cache	Value
+have_response_time_distribution	Value
 have_rtree_keys	Value
 have_ssl	Value
 have_symlink	Value
@ -78,6 +81,8 @@ innodb_additional_mem_pool_size	Value
 innodb_auto_lru_dump	Value
 innodb_autoextend_increment	Value
 innodb_autoinc_lock_mode	Value
+innodb_buffer_pool_shm_checksum	Value
+innodb_buffer_pool_shm_key	Value
 innodb_buffer_pool_size	Value
 innodb_change_buffering	Value
 innodb_checkpoint_age_target	Value
@ -246,6 +251,7 @@ query_cache_strip_comments	Value
 query_cache_type	Value
 query_cache_wlock_invalidate	Value
 query_prealloc_size	Value
+query_response_time_range_base	Value
 rand_seed1	Value
 rand_seed2	Value
 range_alloc_block_size	Value
--- a/percona-suite/percona_server_variables.test
+++ b/percona-suite/percona_server_variables.test
@ -1,3 +1,4 @@
+--source include/have_response_time_distribution.inc
 --source include/have_innodb.inc
 --source include/have_debug.inc

--- a/percona-suite/profiling_slow.patch/percona_bug643149.result
+++ b/percona-suite/profiling_slow.patch/percona_bug643149.result
@ -0,0 +1,16 @@
+SET @old_slow_query_log_file=@@global.slow_query_log_file;
+SET GLOBAL slow_query_log=on;
+SET LOCAL profiling_server=on;
+SET LOCAL long_query_time=1;
+SET GLOBAL slow_query_log_file='MYSQLTEST_VARDIR/percona_bug643149_slow.log';;
+SELECT SLEEP(2);
+SLEEP(2)
+0
+# Time: X X:X:X
+# User@Host: root[root] @ localhost []
+# Thread_id: X Schema: test Last_errno: X Killed: X
+# Query_time: X.X Lock_time: X.X Rows_sent: X Rows_examined: X Rows_affected: X Rows_read: X
+# Bytes_sent: X Tmp_tables: X Tmp_disk_tables: X Tmp_table_sizes: X
+# Profile_starting: X.X Profile_starting_cpu: X.X Profile_checking_permissions: X.X Profile_checking_permissions_cpu: X.X Profile_Opening_tables: X.X Profile_Opening_tables_cpu: X.X Profile_init: X.X Profile_init_cpu: X.X Profile_optimizing: X.X Profile_optimizing_cpu: X.X Profile_executing: X.X Profile_executing_cpu: X.X Profile_User_sleep: X.X Profile_User_sleep_cpu: X.X Profile_end: X.X Profile_end_cpu: X.X Profile_query_end: X.X Profile_query_end_cpu: X.X Profile_freeing_items: X.X Profile_freeing_items_cpu: X.X Profile_logging_slow_query: X.X Profile_logging_slow_query_cpu: X.X 
+# Profile_total: X.X Profile_total_cpu: X.X 
+SET GLOBAL slow_query_log_file=@old_slow_query_log_file;
--- a/percona-suite/profiling_slow.patch/percona_bug643149.test
+++ b/percona-suite/profiling_slow.patch/percona_bug643149.test
@ -0,0 +1,50 @@
+#
+# This test suffers from server
+# Bug#38124 "general_log_file" variable silently unset when using expression
+# In short:
+#    SET GLOBAL general_log_file = @<whatever>
+#    SET GLOBAL slow_query_log = @<whatever>
+# cause that the value of these server system variables is set to default
+# instead of the assigned values. There comes no error message or warning.
+# If this bug is fixed please
+# 1. try this test with "let $fixed_bug38124 = 0;"
+# 2. remove all workarounds if 1. was successful.
+let $fixed_bug38124 = 0;
+
+SET @old_slow_query_log_file=@@global.slow_query_log_file;
+SET GLOBAL slow_query_log=on;
+SET LOCAL profiling_server=on;
+SET LOCAL long_query_time=1;
+
+let slogfile=$MYSQLTEST_VARDIR/percona_bug643149_slow.log;
+--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
+--eval SET GLOBAL slow_query_log_file='$slogfile';
+
+--disable_ps_protocol
+SELECT SLEEP(2);
+--enable_ps_protocol
+
+perl;
+  $slogfile= $ENV{'slogfile'};
+
+  open(FILE, "$slogfile") or
+    die("Unable to read slow query log file $slogfile: $!\n");
+  while(<FILE>) {
+    next if (!/^#/);
+    s/[0-9]+/X/g;
+    s/ +/ /g;
+    print;
+  }
+
+  close(FILE);
+EOF
+
+SET GLOBAL slow_query_log_file=@old_slow_query_log_file;
+
+if(!$fixed_bug38124)
+{
+  --disable_query_log
+  let $my_var = `SELECT @old_slow_query_log_file`;
+  eval SET @@global.slow_query_log_file = '$my_var';
+  --enable_query_log
+}
--- a/percona-suite/query_cache_enhance.patch/percona_status_wait_query_cache_mutex.test
+++ b/percona-suite/query_cache_enhance.patch/percona_status_wait_query_cache_mutex.test
@ -34,4 +34,4 @@ SET SESSION debug="+d,status_wait_query_cache_mutex_sleep";
 SHOW PROCESSLIST;

 DROP TABLE t;
-set GLOBAL query_cache_size=0;
+set GLOBAL query_cache_size=0;
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time-replication.result
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time-replication.result
@ -0,0 +1,70 @@
+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+DROP TABLE IF EXISTS t;
+CREATE TABLE t(id INT);
+SELECT * from t;
+id
+SELECT * from t;
+id
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+Warnings:
+Warning	1292	Truncated incorrect query_response_time_range_base value: '1'
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	10
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=ON;
+INSERT INTO t SELECT SLEEP(0.4);
+Warnings:
+Note	1592	Statement may not be safe to log in statement format.
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+0
+INSERT INTO t SELECT SLEEP(0.4);
+Warnings:
+Note	1592	Statement may not be safe to log in statement format.
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+0
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+2
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+3
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+FLUSH QUERY_RESPONSE_TIME;
+INSERT INTO t SELECT SLEEP(0.4);
+Warnings:
+Note	1592	Statement may not be safe to log in statement format.
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+0
+INSERT INTO t SELECT SLEEP(0.4);
+Warnings:
+Note	1592	Statement may not be safe to log in statement format.
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+0
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+2
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count)
+3
+DROP TABLE IF EXISTS t;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=OFF;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time-replication.test
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time-replication.test
@ -0,0 +1,57 @@
+--source include/have_response_time_distribution.inc
+--source include/master-slave.inc
+--source include/have_binlog_format_statement.inc
+--source include/have_debug.inc
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+
+connection master;
+-- disable_warnings
+DROP TABLE IF EXISTS t;
+-- enable_warnings
+CREATE TABLE t(id INT);
+SELECT * from t;
+
+sync_slave_with_master;
+
+connection slave;
+SELECT * from t;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=ON;
+
+connection master;
+INSERT INTO t SELECT SLEEP(0.4);
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+INSERT INTO t SELECT SLEEP(0.4);
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+sync_slave_with_master;
+
+connection slave;
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+source include/percona_query_response_time_flush.inc;
+
+connection master;
+INSERT INTO t SELECT SLEEP(0.4);
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+INSERT INTO t SELECT SLEEP(0.4);
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+sync_slave_with_master;
+
+connection slave;
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SELECT SUM(INFORMATION_SCHEMA.QUERY_RESPONSE_TIME.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+
+connection master;
+DROP TABLE IF EXISTS t;
+sync_slave_with_master;
+connection slave;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=OFF;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time-stored.result
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time-stored.result
@ -0,0 +1,313 @@
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+CREATE FUNCTION test_f()
+RETURNS CHAR(30) DETERMINISTIC
+BEGIN
+DECLARE first  VARCHAR(5);
+DECLARE second VARCHAR(5);
+DECLARE result VARCHAR(20);
+SELECT SLEEP(1.11) INTO first;
+SET first= 'Hello';
+SET second=', ';
+SET result= CONCAT(first,second);
+SET result= CONCAT(result,'world!');
+RETURN result;
+END/
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+Warnings:
+Warning	1292	Truncated incorrect query_response_time_range_base value: '1'
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+FLUSH QUERY_RESPONSE_TIME;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+44
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000003
+      0.000007
+      0.000015
+      0.000030
+      0.000061
+      0.000122
+      0.000244
+      0.000488
+      0.000976
+      0.001953
+      0.003906
+      0.007812
+      0.015625
+      0.031250
+      0.062500
+      0.125000
+      0.250000
+      0.500000
+      1.000000
+      2.000000
+      4.000000
+      8.000000
+     16.000000
+     32.000000
+     64.000000
+    128.000000
+    256.000000
+    512.000000
+   1024.000000
+   2048.000000
+   4096.000000
+   8192.000000
+  16384.000000
+  32768.000000
+  65536.000000
+ 131072.000000
+ 262144.000000
+ 524288.000000
+ 1048576.00000
+ 2097152.00000
+ 4194304.00000
+ 8388608.00000
+TOO LONG
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+test_f()
+Hello, world!
+SELECT test_f();
+test_f()
+Hello, world!
+SELECT test_f();
+test_f()
+Hello, world!
+SELECT test_f();
+test_f()
+Hello, world!
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+4	4	4	1	44
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+44
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000003
+      0.000007
+      0.000015
+      0.000030
+      0.000061
+      0.000122
+      0.000244
+      0.000488
+      0.000976
+      0.001953
+      0.003906
+      0.007812
+      0.015625
+      0.031250
+      0.062500
+      0.125000
+      0.250000
+      0.500000
+      1.000000
+      2.000000
+      4.000000
+      8.000000
+     16.000000
+     32.000000
+     64.000000
+    128.000000
+    256.000000
+    512.000000
+   1024.000000
+   2048.000000
+   4096.000000
+   8192.000000
+  16384.000000
+  32768.000000
+  65536.000000
+ 131072.000000
+ 262144.000000
+ 524288.000000
+ 1048576.00000
+ 2097152.00000
+ 4194304.00000
+ 8388608.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	10
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+test_f()
+Hello, world!
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+1	1	1	1	14
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+14
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000010
+      0.000100
+      0.001000
+      0.010000
+      0.100000
+      1.000000
+     10.000000
+    100.000000
+   1000.000000
+  10000.000000
+ 100000.000000
+ 1000000.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	10
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 7;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	7
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+test_f()
+Hello, world!
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+1	1	1	1	17
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+17
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000008
+      0.000059
+      0.000416
+      0.002915
+      0.020408
+      0.142857
+      1.000000
+      7.000000
+     49.000000
+    343.000000
+   2401.000000
+  16807.000000
+ 117649.000000
+ 823543.000000
+ 5764801.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	7
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 156;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	156
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+test_f()
+Hello, world!
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+1	1	1	1	7
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+7
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000041
+      0.006410
+      1.000000
+    156.000000
+  24336.000000
+ 3796416.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	156
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1000;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+test_f()
+Hello, world!
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+1	1	1	1	6
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+6
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.001000
+      1.000000
+   1000.000000
+ 1000000.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1001;
+Warnings:
+Warning	1292	Truncated incorrect query_response_time_range_base value: '1001'
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE  =10;
+DROP FUNCTION test_f;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time-stored.test
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time-stored.test
@ -0,0 +1,90 @@
+--source include/have_response_time_distribution.inc
+--source include/have_debug.inc
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+
+delimiter /;
+CREATE FUNCTION test_f()
+RETURNS CHAR(30) DETERMINISTIC
+BEGIN
+	DECLARE first  VARCHAR(5);
+	DECLARE second VARCHAR(5);
+	DECLARE result VARCHAR(20);
+	SELECT SLEEP(1.11) INTO first;
+	SET first= 'Hello';
+	SET second=', ';
+	SET result= CONCAT(first,second);
+	SET result= CONCAT(result,'world!');
+	RETURN result;
+END/
+delimiter ;/
+
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+source include/percona_query_response_time_show.inc;
+
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+SELECT test_f();
+SELECT test_f();
+SELECT test_f();
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 7;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 156;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1000;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT test_f();
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1001;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE  =10;
+
+DROP FUNCTION test_f;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time.result
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time.result
@ -0,0 +1,567 @@
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+Warnings:
+Warning	1292	Truncated incorrect query_response_time_range_base value: '1'
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+FLUSH QUERY_RESPONSE_TIME;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+44
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000003
+      0.000007
+      0.000015
+      0.000030
+      0.000061
+      0.000122
+      0.000244
+      0.000488
+      0.000976
+      0.001953
+      0.003906
+      0.007812
+      0.015625
+      0.031250
+      0.062500
+      0.125000
+      0.250000
+      0.500000
+      1.000000
+      2.000000
+      4.000000
+      8.000000
+     16.000000
+     32.000000
+     64.000000
+    128.000000
+    256.000000
+    512.000000
+   1024.000000
+   2048.000000
+   4096.000000
+   8192.000000
+  16384.000000
+  32768.000000
+  65536.000000
+ 131072.000000
+ 262144.000000
+ 524288.000000
+ 1048576.00000
+ 2097152.00000
+ 4194304.00000
+ 8388608.00000
+TOO LONG
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT SLEEP(0.31);
+SLEEP(0.31)
+0
+SELECT SLEEP(0.32);
+SLEEP(0.32)
+0
+SELECT SLEEP(0.33);
+SLEEP(0.33)
+0
+SELECT SLEEP(0.34);
+SLEEP(0.34)
+0
+SELECT SLEEP(0.35);
+SLEEP(0.35)
+0
+SELECT SLEEP(0.36);
+SLEEP(0.36)
+0
+SELECT SLEEP(0.37);
+SLEEP(0.37)
+0
+SELECT SLEEP(0.38);
+SLEEP(0.38)
+0
+SELECT SLEEP(0.39);
+SLEEP(0.39)
+0
+SELECT SLEEP(0.40);
+SLEEP(0.40)
+0
+SELECT SLEEP(1.1);
+SLEEP(1.1)
+0
+SELECT SLEEP(1.2);
+SLEEP(1.2)
+0
+SELECT SLEEP(1.3);
+SLEEP(1.3)
+0
+SELECT SLEEP(1.5);
+SLEEP(1.5)
+0
+SELECT SLEEP(1.4);
+SLEEP(1.4)
+0
+SELECT SLEEP(0.5);
+SLEEP(0.5)
+0
+SELECT SLEEP(2.1);
+SLEEP(2.1)
+0
+SELECT SLEEP(2.3);
+SLEEP(2.3)
+0
+SELECT SLEEP(2.5);
+SLEEP(2.5)
+0
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+10	19	15	4	44
+1	19	15	4	44
+5	19	15	4	44
+3	19	15	4	44
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+44
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000003
+      0.000007
+      0.000015
+      0.000030
+      0.000061
+      0.000122
+      0.000244
+      0.000488
+      0.000976
+      0.001953
+      0.003906
+      0.007812
+      0.015625
+      0.031250
+      0.062500
+      0.125000
+      0.250000
+      0.500000
+      1.000000
+      2.000000
+      4.000000
+      8.000000
+     16.000000
+     32.000000
+     64.000000
+    128.000000
+    256.000000
+    512.000000
+   1024.000000
+   2048.000000
+   4096.000000
+   8192.000000
+  16384.000000
+  32768.000000
+  65536.000000
+ 131072.000000
+ 262144.000000
+ 524288.000000
+ 1048576.00000
+ 2097152.00000
+ 4194304.00000
+ 8388608.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	2
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	10
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT SLEEP(0.31);
+SLEEP(0.31)
+0
+SELECT SLEEP(0.32);
+SLEEP(0.32)
+0
+SELECT SLEEP(0.33);
+SLEEP(0.33)
+0
+SELECT SLEEP(0.34);
+SLEEP(0.34)
+0
+SELECT SLEEP(0.35);
+SLEEP(0.35)
+0
+SELECT SLEEP(0.36);
+SLEEP(0.36)
+0
+SELECT SLEEP(0.37);
+SLEEP(0.37)
+0
+SELECT SLEEP(0.38);
+SLEEP(0.38)
+0
+SELECT SLEEP(0.39);
+SLEEP(0.39)
+0
+SELECT SLEEP(0.40);
+SLEEP(0.40)
+0
+SELECT SLEEP(1.1);
+SLEEP(1.1)
+0
+SELECT SLEEP(1.2);
+SLEEP(1.2)
+0
+SELECT SLEEP(1.3);
+SLEEP(1.3)
+0
+SELECT SLEEP(1.5);
+SLEEP(1.5)
+0
+SELECT SLEEP(1.4);
+SLEEP(1.4)
+0
+SELECT SLEEP(0.5);
+SLEEP(0.5)
+0
+SELECT SLEEP(2.1);
+SLEEP(2.1)
+0
+SELECT SLEEP(2.3);
+SLEEP(2.3)
+0
+SELECT SLEEP(2.5);
+SLEEP(2.5)
+0
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+11	19	17	2	14
+8	19	17	2	14
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+14
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000010
+      0.000100
+      0.001000
+      0.010000
+      0.100000
+      1.000000
+     10.000000
+    100.000000
+   1000.000000
+  10000.000000
+ 100000.000000
+ 1000000.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	10
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 7;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	7
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT SLEEP(0.31);
+SLEEP(0.31)
+0
+SELECT SLEEP(0.32);
+SLEEP(0.32)
+0
+SELECT SLEEP(0.33);
+SLEEP(0.33)
+0
+SELECT SLEEP(0.34);
+SLEEP(0.34)
+0
+SELECT SLEEP(0.35);
+SLEEP(0.35)
+0
+SELECT SLEEP(0.36);
+SLEEP(0.36)
+0
+SELECT SLEEP(0.37);
+SLEEP(0.37)
+0
+SELECT SLEEP(0.38);
+SLEEP(0.38)
+0
+SELECT SLEEP(0.39);
+SLEEP(0.39)
+0
+SELECT SLEEP(0.40);
+SLEEP(0.40)
+0
+SELECT SLEEP(1.1);
+SLEEP(1.1)
+0
+SELECT SLEEP(1.2);
+SLEEP(1.2)
+0
+SELECT SLEEP(1.3);
+SLEEP(1.3)
+0
+SELECT SLEEP(1.5);
+SLEEP(1.5)
+0
+SELECT SLEEP(1.4);
+SLEEP(1.4)
+0
+SELECT SLEEP(0.5);
+SLEEP(0.5)
+0
+SELECT SLEEP(2.1);
+SLEEP(2.1)
+0
+SELECT SLEEP(2.3);
+SLEEP(2.3)
+0
+SELECT SLEEP(2.5);
+SLEEP(2.5)
+0
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+11	19	17	2	17
+8	19	17	2	17
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+17
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.000008
+      0.000059
+      0.000416
+      0.002915
+      0.020408
+      0.142857
+      1.000000
+      7.000000
+     49.000000
+    343.000000
+   2401.000000
+  16807.000000
+ 117649.000000
+ 823543.000000
+ 5764801.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	7
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 156;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	156
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT SLEEP(0.31);
+SLEEP(0.31)
+0
+SELECT SLEEP(0.32);
+SLEEP(0.32)
+0
+SELECT SLEEP(0.33);
+SLEEP(0.33)
+0
+SELECT SLEEP(0.34);
+SLEEP(0.34)
+0
+SELECT SLEEP(0.35);
+SLEEP(0.35)
+0
+SELECT SLEEP(0.36);
+SLEEP(0.36)
+0
+SELECT SLEEP(0.37);
+SLEEP(0.37)
+0
+SELECT SLEEP(0.38);
+SLEEP(0.38)
+0
+SELECT SLEEP(0.39);
+SLEEP(0.39)
+0
+SELECT SLEEP(0.40);
+SLEEP(0.40)
+0
+SELECT SLEEP(1.1);
+SLEEP(1.1)
+0
+SELECT SLEEP(1.2);
+SLEEP(1.2)
+0
+SELECT SLEEP(1.3);
+SLEEP(1.3)
+0
+SELECT SLEEP(1.5);
+SLEEP(1.5)
+0
+SELECT SLEEP(1.4);
+SLEEP(1.4)
+0
+SELECT SLEEP(0.5);
+SLEEP(0.5)
+0
+SELECT SLEEP(2.1);
+SLEEP(2.1)
+0
+SELECT SLEEP(2.3);
+SLEEP(2.3)
+0
+SELECT SLEEP(2.5);
+SLEEP(2.5)
+0
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+11	19	17	2	7
+8	19	17	2	7
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+7
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000041
+      0.006410
+      1.000000
+    156.000000
+  24336.000000
+ 3796416.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	156
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1000;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+FLUSH QUERY_RESPONSE_TIME;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+SELECT SLEEP(0.31);
+SLEEP(0.31)
+0
+SELECT SLEEP(0.32);
+SLEEP(0.32)
+0
+SELECT SLEEP(0.33);
+SLEEP(0.33)
+0
+SELECT SLEEP(0.34);
+SLEEP(0.34)
+0
+SELECT SLEEP(0.35);
+SLEEP(0.35)
+0
+SELECT SLEEP(0.36);
+SLEEP(0.36)
+0
+SELECT SLEEP(0.37);
+SLEEP(0.37)
+0
+SELECT SLEEP(0.38);
+SLEEP(0.38)
+0
+SELECT SLEEP(0.39);
+SLEEP(0.39)
+0
+SELECT SLEEP(0.40);
+SLEEP(0.40)
+0
+SELECT SLEEP(1.1);
+SLEEP(1.1)
+0
+SELECT SLEEP(1.2);
+SLEEP(1.2)
+0
+SELECT SLEEP(1.3);
+SLEEP(1.3)
+0
+SELECT SLEEP(1.5);
+SLEEP(1.5)
+0
+SELECT SLEEP(1.4);
+SLEEP(1.4)
+0
+SELECT SLEEP(0.5);
+SLEEP(0.5)
+0
+SELECT SLEEP(2.1);
+SLEEP(2.1)
+0
+SELECT SLEEP(2.3);
+SLEEP(2.3)
+0
+SELECT SLEEP(2.5);
+SLEEP(2.5)
+0
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+count	query_count	query_total	not_zero_region_count	region_count
+11	19	17	2	6
+8	19	17	2	6
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+region_count
+6
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+time
+      0.000001
+      0.001000
+      1.000000
+   1000.000000
+ 1000000.00000
+TOO LONG
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1001;
+Warnings:
+Warning	1292	Truncated incorrect query_response_time_range_base value: '1001'
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+Variable_name	Value
+query_response_time_range_base	1000
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE  =10;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time.test
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time.test
@ -0,0 +1,68 @@
+--source include/have_response_time_distribution.inc
+--source include/have_debug.inc
+SET SESSION debug="+d,response_time_distribution_log_only_more_300_milliseconds";
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 2;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+source include/percona_query_response_time_show.inc;
+
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+source include/percona_query_response_time_sleep.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 10;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+source include/percona_query_response_time_sleep.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 7;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+source include/percona_query_response_time_sleep.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 156;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+source include/percona_query_response_time_sleep.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1000;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+source include/percona_query_response_time_flush.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=1;
+source include/percona_query_response_time_sleep.inc;
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+
+source include/percona_query_response_time_show.inc;
+
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE = 1001;
+SHOW GLOBAL VARIABLES where Variable_name like 'QUERY_RESPONSE_TIME_RANGE_BASE';
+
+SET GLOBAL ENABLE_QUERY_RESPONSE_TIME_STATS=0;
+SET GLOBAL QUERY_RESPONSE_TIME_RANGE_BASE  =10;
+SET SESSION debug="-d,response_time_distribution_log_only_more_300_milliseconds";
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time_flush.inc
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time_flush.inc
@ -0,0 +1 @@
+FLUSH QUERY_RESPONSE_TIME;
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time_show.inc
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time_show.inc
@ -0,0 +1,8 @@
+SELECT d.count,
+(SELECT SUM(a.count) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as a WHERE a.count != 0) as query_count,
+(SELECT SUM((b.total * 1000000) DIV 1000000) FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as b WHERE b.count != 0) as query_total,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as c WHERE c.count != 0) as not_zero_region_count,
+(SELECT COUNT(*)     FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME) as region_count
+FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME as d WHERE d.count > 0;
+SELECT COUNT(*) as region_count FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
+SELECT time FROM INFORMATION_SCHEMA.QUERY_RESPONSE_TIME;
--- a/percona-suite/response-time-distribution.patch/percona_query_response_time_sleep.inc
+++ b/percona-suite/response-time-distribution.patch/percona_query_response_time_sleep.inc
@ -0,0 +1,19 @@
+SELECT SLEEP(0.31);
+SELECT SLEEP(0.32);
+SELECT SLEEP(0.33);
+SELECT SLEEP(0.34);
+SELECT SLEEP(0.35);
+SELECT SLEEP(0.36);
+SELECT SLEEP(0.37);
+SELECT SLEEP(0.38);
+SELECT SLEEP(0.39);
+SELECT SLEEP(0.40);
+SELECT SLEEP(1.1);
+SELECT SLEEP(1.2);
+SELECT SLEEP(1.3);
+SELECT SLEEP(1.5);
+SELECT SLEEP(1.4);
+SELECT SLEEP(0.5);
+SELECT SLEEP(2.1);
+SELECT SLEEP(2.3);
+SELECT SLEEP(2.5);
--- a/percona-suite/show_slave_status_nolock.patch/percona_show_slave_status_nolock.result
+++ b/percona-suite/show_slave_status_nolock.patch/percona_show_slave_status_nolock.result
@ -0,0 +1,21 @@
+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
+DROP TABLE IF EXISTS t;
+CREATE TABLE t(id INT);
+INSERT INTO t SELECT SLEEP(10);
+STOP SLAVE;
+Warnings:
+Note	1592	Statement may not be safe to log in statement format.
+master	count(*)
+master	1
+slave	count(*)
+slave	0
+SHOW SLAVE STATUS NOLOCK;
+START SLAVE;
+slave	count(*)
+slave	1
+DROP TABLE t;
--- a/percona-suite/show_slave_status_nolock.patch/percona_show_slave_status_nolock.test
+++ b/percona-suite/show_slave_status_nolock.patch/percona_show_slave_status_nolock.test
@ -0,0 +1,47 @@
+--source include/master-slave.inc
+--source include/have_binlog_format_statement.inc
+
+connection master;
+  --disable_warnings
+  DROP TABLE IF EXISTS t;
+  --enable_warnings
+  CREATE TABLE t(id INT);
+  sync_slave_with_master;
+
+connection master;
+  send INSERT INTO t SELECT SLEEP(10);
+
+connection slave;
+  sleep 15;
+  send STOP SLAVE;
+
+connection master;
+  reap;
+
+  --disable_query_log
+  select "master",count(*) from t;
+  --enable_query_log
+
+connection slave1;
+  --disable_query_log
+  select "slave",count(*) from t;
+  --enable_query_log
+
+  --disable_result_log
+  SHOW SLAVE STATUS NOLOCK;
+  --enable_result_log
+
+connection slave;
+  reap;
+
+  --source include/wait_for_slave_to_stop.inc
+  START SLAVE;
+  --source include/wait_for_slave_to_start.inc
+
+  --disable_query_log
+  select "slave",count(*) from t;
+  --enable_query_log
+
+connection master;
+  DROP TABLE t;
+sync_slave_with_master;
--- a/percona-suite/slow_extended.patch/grep.inc
+++ b/percona-suite/slow_extended.patch/grep.inc
@ -0,0 +1,16 @@
+perl;
+
+  $file = $ENV{'grep_file'};
+  $pattern = $ENV{'grep_pattern'};
+
+  open(FILE, "$file")
+    or die("Cannot open file $file: $!\n");
+
+  $lines = 0;
+  while(<FILE>) {
+    $lines++ if (/$pattern/);
+  }
+  print "$lines\n";
+
+  close(FILE);
+EOF
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined-master.opt
@ -0,0 +1 @@
+--use_global_long_query_time --log_slow_verbosity="full"
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined.result
@ -0,0 +1,18 @@
+show variables like 'use_global_long_query_time';
+Variable_name	Value
+use_global_long_query_time	ON
+show variables like 'use_global_log_slow_control';
+Variable_name	Value
+use_global_log_slow_control	long_query_time
+show variables like 'log_slow_verbosity';
+Variable_name	Value
+log_slow_verbosity	microtime,query_plan,innodb
+show global variables like 'use_global_long_query_time';
+Variable_name	Value
+use_global_long_query_time	ON
+show global variables like 'log_slow_verbosity';
+Variable_name	Value
+log_slow_verbosity	microtime,query_plan,innodb
+show global variables like 'use_global_log_slow_control';
+Variable_name	Value
+use_global_log_slow_control	long_query_time
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined.test
@ -0,0 +1,6 @@
+show variables like 'use_global_long_query_time';
+show variables like 'use_global_log_slow_control';
+show variables like 'log_slow_verbosity';
+show global variables like 'use_global_long_query_time';
+show global variables like 'log_slow_verbosity';
+show global variables like 'use_global_log_slow_control';
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined2-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined2-master.opt
@ -0,0 +1 @@
+--use_global_log_slow_control="long_query_time"
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined2.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined2.result
@ -0,0 +1,12 @@
+show variables like 'use_global_long_query_time';
+Variable_name	Value
+use_global_long_query_time	ON
+show variables like 'use_global_log_slow_control';
+Variable_name	Value
+use_global_log_slow_control	long_query_time
+show global variables like 'use_global_long_query_time';
+Variable_name	Value
+use_global_long_query_time	ON
+show global variables like 'use_global_log_slow_control';
+Variable_name	Value
+use_global_log_slow_control	long_query_time
--- a/percona-suite/slow_extended.patch/percona_slow_extended-combined2.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-combined2.test
@ -0,0 +1,4 @@
+show variables like 'use_global_long_query_time';
+show variables like 'use_global_log_slow_control';
+show global variables like 'use_global_long_query_time';
+show global variables like 'use_global_log_slow_control';
--- a/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow-master.opt
@ -1 +1 @@
--slow-query-log-file=percona_slow_query_log-control_global_slow.log --long-query-time=1
+--slow-query-log-file=percona_slow_query_log-control_global_slow.log --long-query-time=1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow.result
@ -8,5 +8,5 @@ sleep(2)
 0
 set global use_global_log_slow_control=none;
 set global log_slow_verbosity=microtime;
-cat var/mysqld.1/data/percona_slow_query_log-control_global_slow.log | grep "No InnoDB statistics available for this query" | wc -l
+FLUSH LOGS;
 1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-control_global_slow.test
@ -5,6 +5,8 @@ set global use_global_log_slow_control="log_slow_verbosity,long_query_time";
 SELECT sleep(2);
 set global use_global_log_slow_control=none;
 set global log_slow_verbosity=microtime;
-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-control_global_slow.log | grep "No InnoDB statistics available for this query" | wc -l;
-echo $cmd;
-exec $cmd;
+
+FLUSH LOGS;
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-control_global_slow.log
+--let grep_pattern = No InnoDB statistics available for this query
+--source include/grep.inc
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter-master.opt
@ -1 +1 @@
--slow-query-log-file=percona_slow_query_log-log_slow_filter.log --long-query-time=1
+--slow-query-log-file=percona_slow_query_log-log_slow_filter.log --long-query-time=1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter.result
@ -21,5 +21,5 @@ SELECT sleep(2);
 sleep(2)
 0
 drop table if exists t;
-cat var/mysqld.1/data/percona_slow_query_log-log_slow_filter.log | grep Query_time | wc -l
+FLUSH LOGS;
 2
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_filter.test
@ -26,6 +26,7 @@ SELECT sleep(2);
 drop table if exists t;
 --enable_warnings

-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-log_slow_filter.log | grep Query_time | wc -l;
-echo $cmd;
-exec $cmd;
+FLUSH LOGS;
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-log_slow_filter.log
+--let grep_pattern = Query_time
+--source include/grep.inc
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl-master.opt
@ -0,0 +1 @@
+--log_slow_sp_statements
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl.result
@ -0,0 +1,3 @@
+show global variables like 'log_slow_sp_statements';
+Variable_name	Value
+log_slow_sp_statements	ON
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_sp_statements-cl.test
@ -0,0 +1 @@
+show global variables like 'log_slow_sp_statements';
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl-master.opt
@ -0,0 +1 @@
+--log_slow_timestamp_every
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl.result
@ -0,0 +1,3 @@
+show global variables like 'log_slow_timestamp_every';
+Variable_name	Value
+log_slow_timestamp_every	ON
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_timestamp_every-cl.test
@ -0,0 +1 @@
+show global variables like 'log_slow_timestamp_every';
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl-master.opt
@ -0,0 +1 @@
+--log_slow_verbosity="full"
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl.result
@ -0,0 +1,9 @@
+show global variables like 'log_slow_verbosity';
+Variable_name	Value
+log_slow_verbosity	microtime,query_plan,innodb
+show variables like 'log_slow_verbosity';
+Variable_name	Value
+log_slow_verbosity	microtime,query_plan,innodb
+select @@log_slow_verbosity;
+@@log_slow_verbosity
+microtime,query_plan,innodb
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-cl.test
@ -0,0 +1,3 @@
+show global variables like 'log_slow_verbosity';
+show variables like 'log_slow_verbosity';
+select @@log_slow_verbosity;
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity-master.opt
@ -1 +1 @@
--slow-query-log-file=percona_slow_query_log-log_slow_verbosity.log --long-query-time=1
+--slow-query-log-file=percona_slow_query_log-log_slow_verbosity.log --long-query-time=1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity.result
@ -5,5 +5,5 @@ set log_slow_verbosity=innodb;
 SELECT sleep(2);
 sleep(2)
 0
-cat var/mysqld.1/data/percona_slow_query_log-log_slow_verbosity.log | grep "No InnoDB statistics available for this query" | wc -l
+FLUSH LOGS;
 1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-log_slow_verbosity.test
@ -6,6 +6,7 @@ set log_slow_verbosity=innodb;

 SELECT sleep(2);

-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-log_slow_verbosity.log | grep "No InnoDB statistics available for this query" | wc -l;
-echo $cmd;
-exec $cmd;
+FLUSH LOGS;
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-log_slow_verbosity.log
+--let grep_pattern = No InnoDB statistics available for this query
+--source include/grep.inc
--- a/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time-master.opt
@ -1 +1 @@
--slow-query-log-file=percona_slow_query_log-long_query_time.log --long-query-time=2
+--slow-query-log-file=percona_slow_query_log-long_query_time.log --long-query-time=2
--- a/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time.result
@ -18,5 +18,5 @@ SELECT sleep(5);
 sleep(5)
 0
 set long_query_time=2;
-cat var/mysqld.1/data/percona_slow_query_log-long_query_time.log | grep Query_time | wc -l
+FLUSH LOGS;
 3
--- a/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-long_query_time.test
@ -12,6 +12,8 @@ SELECT sleep(5);

 set long_query_time=2;

-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-long_query_time.log | grep Query_time | wc -l;
-echo $cmd;
-exec $cmd;
+FLUSH LOGS;
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-long_query_time.log
+--let grep_pattern = Query_time
+--source include/grep.inc
+
--- a/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended-master.opt
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended-master.opt
@ -1 +1 @@
--slow-query-log-file=percona_slow_query_log-microseconds_in_slow_query_log.log --long-query-time=1
+--slow-query-log-file=percona_slow_query_log-microseconds_in_slow_query_log.log --long-query-time=1
--- a/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended.result
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended.result
@ -6,7 +6,6 @@ SELECT sleep(2);
 sleep(2)
 0
 set global slow_query_log_microseconds_timestamp=OFF;
-cat var/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log | grep -E '# Time: [0-9]+[ ]+[0-9]+:[0-\9]+:[0-9]+.[0-9]+' | wc -l
+FLUSH LOGS;
 1
-cat var/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log | grep -E '# Time: [0-9]+[ ]+[0-9]+:[0-\9]+:[0-9]+' | wc -l
 2
--- a/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended.test
+++ b/percona-suite/slow_extended.patch/percona_slow_extended-microseconds_in_slow_extended.test
@ -8,10 +8,12 @@ SELECT sleep(2);

 set global slow_query_log_microseconds_timestamp=OFF;

-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log | grep -E '# Time: [0-9]+[ ]+[0-9]+:[0-\9]+:[0-9]+.[0-9]+' | wc -l;
-echo $cmd;
-exec $cmd;
+FLUSH LOGS;
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log
+--let grep_pattern = # Time: [0-9]+[ ]+[0-9]+:[0-9]+:[0-9]+.[0-9]+
+--source include/grep.inc
+
+--let grep_file = $MYSQLTEST_VARDIR/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log 
+--let grep_pattern =  # Time: [0-9]+[ ]+[0-9]+:[0-9]+:[0-9]+
+--source include/grep.inc

-let $cmd = cat var/mysqld.1/data/percona_slow_query_log-microseconds_in_slow_query_log.log | grep -E '# Time: [0-9]+[ ]+[0-9]+:[0-\9]+:[0-9]+' | wc -l;
-echo $cmd;
-exec $cmd;