mariadb

Commit Graph

Author	SHA1	Message	Date
Eugene Kosov	3daef523af	MDEV-17084 Optimize append only files for NVDIMM Optionally use libpmem for InnoDB redo log writing. When server is built -DWITH_PMEM=ON InnoDB tries to detect that redo log is located on persistent memory storage and uses faster file access method. When server is built with -DWITH_PMEM=OFF preprocessor is used to ensure that no slowdown will present due to allocations and virtual function calls. So, we don't slow down server in a common case. mapped_file_t: an map file, unmap file and returns mapped memory buffer file_io: abstraction around memory mapped files and file descriptors. Allows writing, reading and flushing to files. file_io::writes_are_durable(): notable method of a class. When it returns true writes are flushed immediately. file_os_io: file descriptor based file access. Depends on a global state like srv_read_only_mode file_pmem_io: file access via libpmem This is a collaboration work with Sergey Vojtovich	6 years ago
Marko Mäkelä	d901919db2	MDEV-19747: Fix a warning In commit `fc2f2fa853` we replaced FlushObserver* with bool, but forgot to replace one NULL with false.	6 years ago
Marko Mäkelä	37dc087f58	MDEV-12353: Remove bogus comments and clean up code This is a fixup for commit `7ae21b18a6`. It turns out that even if we in the future made LSN count mini-transactions instead of bytes, we will need both start LSN and end LSN, which must exactly match between mtr_t::commit() and log_phys_t::apply(). log_rec_t::lsn: Restore the const qualifier. log_phys_t::append(): Remove the lsn parameter. Both the start and end LSN must remain unchanged. We can only append log from the same mini-transaction to a single log record snippet. If we combined the log from mini-transactions A and B, it could happen that the FIL_PAGE_LSN of the page is somewhere between A.start_lsn and B.start_lsn. In that case, also the log of B would be wrongly skipped. recv_sys_t::add(): Assert that if the start LSN matches, also the end LSN will match.	6 years ago
Sergei Golubchik	dd87a8b316	Merge commit 'bb-10.5-release' into 10.5	6 years ago
Sergei Golubchik	6dc46b5a4d	alpha -> beta	6 years ago
Marko Mäkelä	f8a9f90667	MDEV-12353: Remove support for crash-upgrade We tighten some assertions regarding dict_index_t::is_dummy and crash recovery, now that redo log processing will no longer create dummy objects.	6 years ago
Marko Mäkelä	7ae21b18a6	MDEV-12353: Change the redo log encoding log_t::FORMAT_10_5: physical redo log format tag log_phys_t: Buffered records in the physical format. The log record bytes will follow the last data field, making use of alignment padding that would otherwise be wasted. If there are multiple records for the same page, also those may be appended to an existing log_phys_t object if the memory is available. In the physical format, the first byte of a record identifies the record and its length (up to 15 bytes). For longer records, the immediately following bytes will encode the remaining length in a variable-length encoding. Usually, a variable-length-encoded page identifier will follow, followed by optional payload, whose length is included in the initially encoded total record length. When a mini-transaction is updating multiple fields in a page, it can avoid repeating the tablespace identifier and page number by setting the same_page flag (most significant bit) in the first byte of the log record. The byte offset of the record will be relative to where the previous record for that page ended. Until MDEV-14425 introduces a separate file-level log for redo log checkpoints and file operations, we will write the file-level records in the page-level redo log file. The record FILE_CHECKPOINT (which replaces MLOG_CHECKPOINT) will be removed in MDEV-14425, and one sequential scan of the page recovery log will suffice. Compared to MLOG_FILE_CREATE2, FILE_CREATE will not include any flags. If the information is needed, it can be parsed from WRITE records that modify FSP_SPACE_FLAGS. MLOG_ZIP_WRITE_STRING: Remove. The record was only introduced temporarily as part of this work, before being replaced with WRITE (along with MLOG_WRITE_STRING, MLOG_1BYTE, MLOG_nBYTES). mtr_buf_t::empty(): Check if the buffer is empty. mtr_t::m_n_log_recs: Remove. It suffices to check if m_log is empty. mtr_t::m_last, mtr_t::m_last_offset: End of the latest m_log record, for the same_page encoding. page_recv_t::last_offset: Reflects mtr_t::m_last_offset. Valid values for last_offset during recovery should be 0 or above 8. (The first 8 bytes of a page are the checksum and the page number, and neither are ever updated directly by log records.) Internally, the special value 1 indicates that the same_page form will not be allowed for the subsequent record. mtr_t::page_create(): Take the block descriptor as parameter, so that it can be compared to mtr_t::m_last. The INIT_INDEX_PAGE record will always followed by a subtype byte, because same_page records must be longer than 1 byte. trx_undo_page_init(): Combine the writes in WRITE record. trx_undo_header_create(): Write 4 bytes using a special MEMSET record that includes 1 bytes of length and 2 bytes of payload. flst_write_addr(): Define as a static function. Combine the writes. flst_zero_both(): Replaces two flst_zero_addr() calls. flst_init(): Do not inline the function. fsp_free_seg_inode(): Zerofill the whole inode. fsp_apply_init_file_page(): Initialize FIL_PAGE_PREV,FIL_PAGE_NEXT to FIL_NULL when using the physical format. btr_create(): Assert !page_has_siblings() because fsp_apply_init_file_page() must have been invoked. fil_ibd_create(): Do not write FILE_MODIFY after FILE_CREATE. fil_names_dirty_and_write(): Remove the parameter mtr. Write the records using a separate mini-transaction object, because any FILE_ records must be at the start of a mini-transaction log. recv_recover_page(): Add a fil_space_t* parameter. After applying log to the a ROW_FORMAT=COMPRESSED page, invoke buf_zip_decompress() to restore the uncompressed page. buf_page_io_complete(): Remove the temporary hack to discard the uncompressed page of a ROW_FORMAT=COMPRESSED page. page_zip_write_header(): Remove. Use mtr_t::write() or mtr_t::memset() instead, and update the compressed page frame separately. trx_undo_header_add_space_for_xid(): Remove. trx_undo_seg_create(): Perform the changes that were previously made by trx_undo_header_add_space_for_xid(). btr_reset_instant(): New function: Reset the table to MariaDB 10.2 or 10.3 format when rolling back an instant ALTER TABLE operation. page_rec_find_owner_rec(): Merge with the only callers. page_cur_insert_rec_low(): Combine writes by using a local buffer. MEMMOVE data from the preceding record whenever feasible (copying at least 3 bytes). page_cur_insert_rec_zip(): Combine writes to page header fields. PageBulk::insertPage(): Issue MEMMOVE records to copy a matching part from the preceding record. PageBulk::finishPage(): Combine the writes to the page header and to the sparse page directory slots. mtr_t::write(): Only log the least significant (last) bytes of multi-byte fields that actually differ. For updating FSP_SIZE, we must always write all 4 bytes to the redo log, so that the fil_space_set_recv_size() logic in recv_sys_t::parse() will work. mtr_t::memcpy(), mtr_t::zmemcpy(): Take a pointer argument instead of a numeric offset to the page frame. Only log the last bytes of multi-byte fields that actually differ. In fil_space_crypt_t::write_page0(), we must log also any unchanged bytes, so that recovery will recognize the record and invoke fil_crypt_parse(). Future work: MDEV-21724 Optimize page_cur_insert_rec_low() redo logging MDEV-21725 Optimize btr_page_reorganize_low() redo logging MDEV-21727 Optimize redo logging for ROW_FORMAT=COMPRESSED	6 years ago
Marko Mäkelä	9869005201	Cleanup ibuf_page_exists(): Take simpler parameters	6 years ago
Marko Mäkelä	67c76704a8	MDEV-12353: Remove MLOG_INDEX_LOAD (innodb_log_optimize_ddl) NOTE: This may break crash-upgrade from a dataset that was created with innodb_log_optimize_ddl=ON. Also due to ROW_FORMAT=COMPRESSED pages, it will be easiest to disallow crash-upgrade. It would be more robust to disable the MDEV-12699 logic when crash-upgrading from old redo log format. log_optimized_ddl_op: Remove. fil_space_t::enable_lsn, file_name_t::enable_lsn: Remove. ddl_tracker_t::optimized_ddl: Remove. TODO: Remove ddl_tracker	6 years ago
Marko Mäkelä	f37a29dd66	MDEV-12353: Write log by mtr_t member functions only mtr_t::log_write_low(): Replaces mlog_write_initial_log_record_low(). mtr_t::log_file_op(): Replaces fil_op_write_log(). mtr_t::free(): Write MLOG_INIT_FREE_PAGE. mtr_t::init(): Write MLOG_INIT_FILE_PAGE2. mtr_t::page_create(): Write record about the partial initialization of an index page. mlog_catenate_ulint(), mlog_catenate_string(), mlog_open(), mlog_close(): Remove.	6 years ago
Marko Mäkelä	8a039ee107	MDEV-12353: Introduce mtr_t::zmemcpy() Exclusively write MLOG_ZIP_WRITE_STRING records by mtr_t::zmemcpy().	6 years ago
Marko Mäkelä	2e7a084283	MDEV-21174: Remove mlog_write_initial_log_record_fast() Pass buf_block_t* to all functions that write redo log. Specifically, replace the parameters page,page_zip with buf_block_t* block in page_zip_ functions.	6 years ago
Marko Mäkelä	498f84a87b	MDEV-12353: Remove mlog_open_and_write_index() Now that all logical log records have been replaced, the function mlog_parse_index() is only needed for crash-upgrading from older versions.	6 years ago
Marko Mäkelä	08ba388713	MDEV-12353: Replace MLOG_REC_INSERT,MLOG_COMP_REC_INSERT page_mem_alloc_free(), page_dir_set_n_heap(), page_ptr_set_direction(): Merge with the callers. page_direction_reset(), page_direction_increment(), page_zip_dir_insert(), page_zip_write_rec_ext(), page_zip_write_rec(): Add the parameter mtr, and write log. PageBulk::insert(), PageBulk::finish(): Write log for all changes. page_cur_rec_insert(), page_cur_insert_rec_write_log(), page_cur_insert_rec_write_log(): Remove. page_rec_set_next(), page_header_set_field(), page_header_set_ptr(): Remove. Use lower-level operations with or without logging. page_zip_dir_add_slot(): Move to the same compilation unit with its only caller, page_cur_insert_rec_zip(). page_cur_insert_rec_zip(): Mark pieces of code that must be skipped once this task is completed. btr_defragment_chunk(): Before starting a mini-transaction that is writing (a lot), invoke log_free_check(). This should allow the test innodb.innodb_defrag_concurrent to pass with the mtr default_mysqld.cnf setting of innodb_log_file_size=10M. MLOG_BUF_MARGIN: Remove.	6 years ago
Marko Mäkelä	2c4d5aa0fe	MDEV-12353: Replace MLOG_ZIP_PAGE_COMPRESS page_zip_compress_write_log(): Write MLOG_INIT_FILE_PAGE2 and MLOG_ZIP_WRITE_STRING records instead of MLOG_ZIP_PAGE_COMPRESS. This depends on the changes to buf_page_io_complete() and friends in the parent commit.	6 years ago
Marko Mäkelä	2a77b2a510	MDEV-12353: Replace MLOG_LIST__DELETE and MLOG_*REC_DELETE No longer write the following redo log records: MLOG_COMP_LIST_END_DELETE, MLOG_LIST_END_DELETE, MLOG_COMP_LIST_START_DELETE, MLOG_LIST_START_DELETE, MLOG_REC_DELETE,MLOG_COMP_REC_DELETE. Each individual deleted record will be logged separately using physical log records. page_dir_slot_set_n_owned(), page_zip_rec_set_owned(), page_zip_dir_delete(), page_zip_clear_rec(): Add the parameter mtr, and write redo log. page_dir_slot_set_rec(): Remove. Replaced with lower-level operations that write redo log when necessary. page_rec_set_n_owned(): Replaces rec_set_n_owned_old(), rec_set_n_owned_new(). rec_set_heap_no(): Replaces rec_set_heap_no_old(), rec_set_heap_no_new(). page_mem_free(), page_dir_split_slot(), page_dir_balance_slot(): Add the parameter mtr. page_dir_set_n_slots(): Merge with the caller page_dir_split_slot(). page_dir_slot_set_rec(): Merge with the callers page_dir_split_slot() and page_dir_balance_slot(). page_cur_insert_rec_low(), page_cur_insert_rec_zip(): Suppress the logging of lower-level operations. page_cur_delete_rec_write_log(): Remove. page_cur_delete_rec(): Do not tolerate mtr=NULL. rec_convert_dtuple_to_rec_old(), rec_convert_dtuple_to_rec_comp(): Replace rec_set_heap_no_old() and rec_set_heap_no_new() with direct access that does not involve redo logging. mtr_t::memcpy(): Do allow non-redo-logged writes to uncompressed pages of ROW_FORMAT=COMPRESSED pages. buf_page_io_complete(): Evict the uncompressed page of a ROW_FORMAT=COMPRESSED page after recovery. Because we no longer write logical log records for deleting index records, but instead write physical records that may refer directly to the compressed page frame of a ROW_FORMAT=COMPRESSED page, and because on recovery we will only apply the changes to the ROW_FORMAT=COMPRESSED page, the uncompressed page frame can be stale until page_zip_decompress() is executed. recv_parse_or_apply_log_rec_body(): After applying MLOG_ZIP_WRITE_STRING, ensure that the FIL_PAGE_TYPE of the uncompressed page matches the compressed page, because buf_flush_init_for_writing() assumes that field to be valid. mlog_init_t::mark_ibuf_exist(): Invoke page_zip_decompress(), because the uncompressed page after buf_page_create() is not necessarily up to date. buf_LRU_block_remove_hashed(): Bypass a page_zip_validate() check during redo log apply. recv_apply_hashed_log_recs(): Invoke mlog_init.mark_ibuf_exist() also for the last batch, to ensure that page_zip_decompress() will be called for freshly initialized pages.	6 years ago
Marko Mäkelä	d00185c40d	MDEV-12353: Replace MLOG_PAGE_CREATE_RTREE, MLOG_PAGE_COMP_CREATE_RTREE page_create(): Create normal B-tree pages. Callers that create R-tree pages will set FIL_PAGE_TYPE and reset the split sequence number afterwards. The creation of ROW_FORMAT=COMPRESSED pages is unaffected; they will be logged as compressed page images. page_create_low(): Take const buf_block_t* as a parameter. Let the callers invoke buf_block_modify_clock_inc().	6 years ago
Marko Mäkelä	b3d02a1fcf	MDEV-12353: Replace DELETE_MARK redo log records with MLOG_WRITE_STRING btr_cur_upd_rec_sys(): Replaces row_upd_rec_sys_fields() and implements redo logging. row_upd_rec_sys_fields_in_recovery(): Remove, and merge to the only remaining caller btr_cur_parse_update_in_place(). btr_cur_del_mark_set_clust_rec_log(), btr_cur_del_mark_set_sec_rec_log(), btr_cur_set_deleted_flag_for_ibuf(): Remove, and replace with btr_rec_set_deleted<bool>(). page_zip_rec_set_deleted(): Add the parameter mtr, and write a MLOG_ZIP_WRITE_STRING record to the log.	6 years ago
Marko Mäkelä	f3230111fc	MDEV-12353: Introduce MLOG_ZIP_WRITE_STRING Log the low-level operations for ROW_FORMAT=COMPRESSED index pages using a new record, MLOG_ZIP_WRITE_STRING. We will still use MLOG_1BYTE,..., MLOG_8BYTES or MLOG_WRITE_STRING for operations on other than index pages (such as the page allocation bitmap pages). We will stop writing the record MLOG_ZIP_PAGE_COMPRESS later, after replacing all MLOG_REC_ and MLOG_COMP_REC_ that update index pages.	6 years ago
Marko Mäkelä	db5cdc3195	MDEV-12353: Replace MLOG_PAGE_REORGANIZE, MLOG_COMP_PAGE_REORGANIZE Log page reorganize as a series of insert operations. This will make the redo log volume proportional to the page payload size. btr_page_reorganize_low(): Add template <bool recovery=false> btr_page_reorganize_block(): Remove the parameter 'bool recovery'	6 years ago
Marko Mäkelä	276f996af9	MDEV-12353: Replace MLOG_*_END_COPY_CREATED Instead of writing the high-level redo log records MLOG_LIST_END_COPY_CREATED, MLOG_COMP_LIST_END_COPY_CREATED write log for each individual insert of a record. page_copy_rec_list_end_to_created_page(): Remove. This will improve the fill factor of some pages. Adjust some tests accordingly. PageBulk::init(), PageBulk::finish(): Avoid setting bogus limits to PAGE_HEAP_TOP and PAGE_N_DIR_SLOTS. Avoid accessor functions that would enforce these limits before the correct ones are set at the end of PageBulk::finish().	6 years ago
Marko Mäkelä	acd265b69b	MDEV-12353: Exclusively use page_zip_reorganize() for ROW_FORMAT=COMPRESSED page_zip_reorganize(): Restore the page on failure. In callers, omit now-redundant calls to page_zip_decompress(). btr_page_reorganize_low(): Define in static scope only, and remove the z_level parameter. Assert that ROW_FORMAT is not COMPRESSED. btr_page_reorganize_block(), btr_page_reorganize(): Invoke page_zip_reorganize() for ROW_FORMAT=COMPRESSED.	7 years ago
Marko Mäkelä	f802c989ec	MDEV-12353: Replace MLOG_UNDO_INSERT trx_undof_page_add_undo_rec_log(): Remove. trx_undo_page_set_next_prev_and_add(), trx_undo_page_report_modify(), trx_undo_page_report_rename(): Write lower-level redo log records.	6 years ago
Marko Mäkelä	e0bc29df18	MDEV-12353: Replace MLOG_UNDO_HDR_CREATE trx_undo_header_create(): Emit lower-level records instead of writing MLOG_UNDO_HDR_CREATE records.	6 years ago
Marko Mäkelä	737b701786	MDEV-12353: Remove trx_undo_erase_page_end() MariaDB stopped writing the record MLOG_UNDO_ERASE_END in commit `0fd3def284` (10.3.3). Merge trx_undo_erase_page_end() with its callers.	6 years ago
Marko Mäkelä	07d39cde92	MDEV-12353: Replace MLOG_UNDO_INIT trx_undo_page_init(): Write lower-level redo log records by invoking mtr_t::write().	6 years ago
Marko Mäkelä	5bea43f5e0	MDEV-12353: Deprecate and ignore innodb_log_compressed_pages page_zip_compress_write_log_no_data(): Remove. We no longer write the MLOG_ZIP_PAGE_COMPRESS_NO_DATA record. Instead, we will write MLOG_ZIP_PAGE_COMPRESS records.	6 years ago
Marko Mäkelä	600eae9179	MDEV-12353: Remove MTR_LOG_SHORT_INSERTS No longer emit the redo log records MLOG_LIST_END_COPY_CREATED, MLOG_COMP_LIST_END_COPY_CREATED.	6 years ago
Vicențiu Ciorbaru	ac51bcfd8d	Update rdiff for sysvars 32bit to account for removed options	6 years ago
Vicențiu Ciorbaru	efa9079fbd	Fix compilation error due to type mismatch in tpool_generic.cc size_t compared to int	6 years ago
Vicențiu Ciorbaru	ad17aa110c	MDEV-18650: Options deprecated in previous versions - multi_range_count Remove deprecated system variable multi_range_count. It was ignored from 5.3.	6 years ago
Vicențiu Ciorbaru	5aebd78e27	MDEV-18650: Options deprecated in previous versions - mroonga_default_parser Variable is marked as deprecated since 10.1.6. Update tests to not make use of it.	6 years ago
Vicențiu Ciorbaru	a05b38c120	MDEV-18650: Options deprecated in previous versions - skip-bdb Remove the option from mysqld --help text.	6 years ago
Vicențiu Ciorbaru	8bbcaab160	MDEV-18650: Options deprecated in previous versions - thread_concurrency thread_concurrency was ignored since 5.5. Remove it.	6 years ago
Vicențiu Ciorbaru	fc5a4cfdf5	MDEV-18650: Options deprecated in previous versions - old_alter_table It was deprecated in 5.5 but it never issued a deprecation warning. Make it issue a warning in 10.5.1.	6 years ago
Sergei Golubchik	899056cfab	for every deprecated sysvar note a version when it happened	6 years ago
Vicențiu Ciorbaru	1bc9cce702	Policy improvement for removed options and system variables REMOVED OPTIONS / SYSTEM VARIABLES * mysqld removed options will not stop the server from starting. They will be silently accepted, as if --loose flag is set. Removed options prefixes will not interfere with existing options prefixes. They are consumed last. * mysqld removed options will not show in --help. * mysqld system variables will be removed according to the deprecation & removal timeline and not function within the client interface once removed. DEPRECTATED OPTIONS / SYSTEM VARIABLES * mysqld deprecated options will issue a warning to the user. * mysqld deprecated options will still be visible in --help. * mysqld system variables will be removed in the next GA version that is past EOL of the version that deprecated the variable. * deprecated options / variables will not be used anywhere in the server code the moment they are deprecated. At most, they will act as aliases. The advantage of this policy is that it ensures upgrades will always allow the user to start the server, even when upgrading from a very old version. It is still possible for user applications to break when upgrading, as system variables set via the client interface will return errors. However, this will happen after a long time, with lots of warnings between versions. The expected timeline is ~ 5 years until a deprecated variable dissapears from the server.	6 years ago
Vicențiu Ciorbaru	45bc7574fb	MDEV-18650: Options deprecated in previous versions - storage_engine Remove usage of deprecated variable storage_engine. It was deprecated in 5.5 but it never issued a deprecation warning. Make it issue a warning in 10.5.1. Replaced with default_storage_engine.	6 years ago
Otto Kekäläinen	415797f1a6	Deb: Run 'wrap-and-sort -a' so comparison across releases is easier	6 years ago
Marko Mäkelä	20a7f75fbf	MDEV-15058: Revert the changes to INFORMATION_SCHEMA For compatibility with diagnostic software, let us return a dummy buffer pool identifier 0 and restore the columns that were initially deleted in commit 1a6f708ec594ac0ae2dd30db926ab07b100fa24b: information_schema.innodb_buffer_page.pool_id information_schema.innodb_buffer_page_lru.pool_id information_schema.innodb_buffer_pool_stats.pool_id information_schema.innodb_cmpmem.buffer_pool_instance information_schema.innodb_cmpmem_reset.buffer_pool_instance Thanks to Vladislav Vaintroub for pointing this out.	6 years ago
Varun Gupta	f0606a7530	MDEV-21665: Server crashes in my_qsort2 / Filesort_buffer::sort_buffer Allocation should use ALIGN_SIZE when we need to make sure that we have atleast enough space to store one record in MERGEBUFF2 buffers	6 years ago
Marko Mäkelä	1a6f708ec5	MDEV-15058: Deprecate and ignore innodb_buffer_pool_instances Our benchmarking efforts indicate that the reasons for splitting the buf_pool in commit `c18084f71b` have mostly gone away, possibly as a result of mysql/mysql-server@ce6109ebfdedfdf185e391a0c97dc6d33867ed78 or similar work. Only in one write-heavy benchmark where the working set size is ten times the buffer pool size, the buf_pool->mutex would be less contended with 4 buffer pool instances than with 1 instance, in buf_page_io_complete(). That contention could be alleviated further by making more use of std::atomic and by splitting buf_pool_t::mutex further (MDEV-15053). We will deprecate and ignore the following parameters: innodb_buffer_pool_instances innodb_page_cleaners There will be only one buffer pool and one page cleaner task. In a number of INFORMATION_SCHEMA views, columns that indicated the buffer pool instance will be removed: information_schema.innodb_buffer_page.pool_id information_schema.innodb_buffer_page_lru.pool_id information_schema.innodb_buffer_pool_stats.pool_id information_schema.innodb_cmpmem.buffer_pool_instance information_schema.innodb_cmpmem_reset.buffer_pool_instance	6 years ago
Marko Mäkelä	0448c614c8	MDEV-16264: Remove unused page_cleaner_t::is_started	6 years ago
Marko Mäkelä	2a6fa1c42b	MDEV-21132: Use memcpy_aligned, memset_aligned	6 years ago
Oleksandr Byelkin	4b087e1754	Merge branch '10.4' into 10.5	6 years ago
Marko Mäkelä	fc2f2fa853	MDEV-19747: Deprecate and ignore innodb_log_optimize_ddl During native table rebuild or index creation, InnoDB used to skip redo logging and write MLOG_INDEX_LOAD records to inform crash recovery and Mariabackup of the gaps in redo log. This is fragile and prohibits some optimizations, such as skipping the doublewrite buffer for newly (re)initialized pages (MDEV-19738). row_merge_write_redo(): Remove. We do not write MLOG_INDEX_LOAD records any more. Instead, we write full redo log. FlushObserver: Remove. fseg_free_page_func(): Remove the parameter log. Redo logging cannot be disabled. fil_space_t::redo_skipped_count: Remove. We cannot remove buf_block_t::skip_flush_check, because PageBulk will temporarily generate invalid B-tree pages in the buffer pool.	6 years ago
Marko Mäkelä	8ccb3caafb	MDEV-17491 micro optimize page_id_t further Let us define page_id_t as a thin wrapper of uint64_t so that the comparison operators can be simplified. This is a follow-up to the original commit `14be814380`. The comparison operator for recv_sys.pages.emplace() turned out to be a busy spot in a recovery benchmark. That data structure was introduced in MDEV-19586 in commit `177a571e01`.	6 years ago
Marko Mäkelä	f3dac59174	MDEV-21351: Fix a performance regression The linear scan of recv_sys_t::blocks() in recv_sys_t::free() turns out to dominate the execution time in crash recovery. Let us scan the much shorter buf_pool->chunks lists instead.	6 years ago
Oleksandr Byelkin	646d1ec83a	Merge branch '10.3' into 10.4	6 years ago
Jan Lindström	e6a50e41da	MDEV-20051: Add new mode to wsrep_OSU_method in which Galera checks storage engine of the effected table Introduced a new wsrep_strict_ddl configuration variable in which Galera checks storage engine of the effected table. If table is not InnoDB (only storage engine currently fully supporting Galera replication) DDL-statement will return error code: ER_GALERA_REPLICATION_NOT_SUPPORTED eng "DDL-statement is forbidden as table storage engine does not support Galera replication" However, when wsrep_replicate_myisam=ON we allow DDL-statements to MyISAM tables. If effected table is allowed storage engine Galera will run normal TOI. This new setting should be for now set globally on all nodes in a cluster. When this setting is set following DDL-clauses accessing tables not supporting Galera replication are refused: * CREATE TABLE (e.g. CREATE TABLE t1(a int) engine=Aria * ALTER TABLE * TRUNCATE TABLE * CREATE VIEW * CREATE TRIGGER * CREATE INDEX * DROP INDEX * RENAME TABLE * DROP TABLE Statements on PROCEDURE, EVENT, FUNCTION are allowed as effected tables are known only at execution. Furthermore, USER, ROLE, SERVER, DATABASE statements are also allowed as they do not really have effected table.	6 years ago

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