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Tree: ff758c8c45

Author	SHA1	Message	Date
Marko Mäkelä	ff758c8c45	Revert revno:3452.71.32 (Bug#12612184 fix). Bug#12612184 RACE CONDITION AFTER BTR_CUR_PESSIMISTIC_UPDATE() The fix introduced potentially more severe crash recovery problems than the bug causes. Revert the fix for now.	14 years ago
Marko Mäkelä	8a94d55e69	Bug#12612184 Race condition after btr_cur_pessimistic_update() btr_cur_compress_if_useful(), btr_compress(): Add the parameter ibool adjust. If adjust=TRUE, adjust the cursor position after compressing the page. btr_lift_page_up(): Return a pointer to the father page. BTR_KEEP_POS_FLAG: A new flag for btr_cur_pessimistic_update(). btr_cur_pessimistic_update(): If big_rec != NULL and flags & BTR_KEEP_POS_FLAG, keep the cursor positioned on the updated record. Also, do not release the index tree x-lock if big_rec != NULL. btr_cur_mtr_commit_and_start(): Commits and restarts a mini-transaction so that it will retain an x-lock on index->lock and the page of the cursor. This is invoked when btr_cur_pessimistic_update() returns big_rec != NULL. In all callers of btr_cur_pessimistic_update() that do not pass BTR_KEEP_POS_FLAG, assert that big_rec == NULL. btr_cur_compress(): Unused function [in the built-in MySQL 5.1], remove. page_rec_get_nth(): Return the nth record on the page (an inverse function of page_rec_get_n_recs_before()). Refactored from page_get_middle_rec(). page_get_middle_rec(): Invoke page_rec_get_nth(). page_cur_insert_rec_zip_reorg(): Make use of the page directory shortcuts in page_rec_get_nth() instead of scanning the whole list of records. row_ins_clust_index_entry_by_modify(): Pass BTR_KEEP_POS_FLAG to btr_cur_pessimistic_update(). row_ins_index_entry_low(): If row_ins_clust_index_entry_by_modify() returns a big_rec, invoke btr_cur_mtr_commit_and_start() in order to commit and start the mini-transaction without releasing the x-locks on index->lock and the cursor page, and write the big_rec. Releasing the page latch in mtr_commit() caused a race condition. row_upd_clust_rec(): Pass BTR_KEEP_POS_FLAG to btr_cur_pessimistic_update(). If it returns a big_rec, invoke btr_cur_mtr_commit_and_start() in order to commit and start the mini-transaction without releasing the x-locks on index->lock and the cursor page, and write the big_rec. Releasing the page latch in mtr_commit() caused a race condition. sync_thread_add_level(): Add the parameter ibool relock. When TRUE, bypass the latching order rules. rw_lock_add_debug_info(): For nested X-lock requests, pass relock=TRUE to sync_thread_add_level(). rb:678 approved by Jimmy Yang	15 years ago
tsmith@ramayana.hindu.god	85982ab747	Apply snapshot innodb-51-ss1644 Fixes: - Bug #23710: crash_commit_before fails if innodb_file_per_table=1 - Bug #28254: innodb crash if shutdown during innodb_table_monitor is running - Bug #28604: innodb_force_recovery restricts data dump - Bug #29097: fsp_get_available_space_in_free_extents() is capped at 4TB - Bug #29155: Innodb "Parallel recovery" is not prevented	18 years ago
tsmith/tim@siva.hindu.god	f269d9b6c3	Applied innodb-5.1 snapshots ss799 and ss854 Bugs fixed: - Bug #20877: InnoDB data dictionary memory footprint is too big - Bug #13544: Second delete of same row in transaction illustrates non-optimal locking - Bug #20791: valgrind errors in InnoDB	19 years ago
aivanov@mysql.com	d33b523271	Applied innodb-5.1-ss269 snapshot. Fixed BUGS: #3300: "UPDATE statement with no index column in where condition locks all rows" Implement semi-consistent read to reduce lock conflicts at the cost of breaking serializability. ha_innobase::unlock_row(): reset the "did semi consistent read" flag ha_innobase::was_semi_consistent_read(), ha_innobase::try_semi_consistent_read(): new methods row_prebuilt_t, row_create_prebuilt(): add field row_read_type for keeping track of semi-consistent reads row_vers_build_for_semi_consistent_read(), row_sel_build_committed_vers_for_mysql(): new functions row_search_for_mysql(): implement semi-consistent reads #9802: "Foreign key checks disallow alter table". Added test cases. #12456: "Cursor shows incorrect data - DML does not affect, probably caching" This patch implements a high-granularity read view to be used with cursors. In this high-granularity consistent read view modifications done by the creating transaction after the cursor is created or future transactions are not visible. But those modifications that transaction did before the cursor was created are visible. #12701: "Support >4GB buffer pool and log files on 64-bit Windows" Do not call os_file_create_tmpfile() at runtime. Instead, create all tempfiles at startup and guard access to them with mutexes. #13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs". When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between foreign key references are compatible. #14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB" innobase_init(): Assert that DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number. dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns. row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying to change the length of a VARBINARY column that refers to or is referenced by a BINARY column. BINARY columns are no longer padded on comparison, and thus they cannot be padded on storage either. #14747: "Race condition can cause btr_search_drop_page_hash_index() to crash" Note that buf_block_t::index should be protected by btr_search_latch or an s-latch or x-latch on the index page. btr_search_drop_page_hash_index(): Read block->index while holding btr_search_latch and use the cached value in the loop. Remove some redundant assertions. #15108: "mysqld crashes when innodb_log_file_size is set > 4G" #15308: "Problem of Order with Enum Column in Primary Key" #15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB" row_ins_foreign_report_add_err(): When printing the parent record, use the index in the parent table rather than the index in the child table. #15653: "Slow inserts to InnoDB if many thousands of .ibd files" Keep track on unflushed modifications to file spaces. When there are tens of thousands of file spaces, flushing all files in fil_flush_file_spaces() would be very slow. fil_flush_file_spaces(): Only flush unflushed file spaces. fil_space_t, fil_system_t: Add a list of unflushed spaces. #15991: "innodb-file-per-table + symlink database + rename = cr" os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR. This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link to a different file system. #16157: "InnoDB crashes when main location settings are empty" This patch is from Heikki. #16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables with VARCHAR BINARY" dict_load_columns(): Set the charset-collation code DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns that lack a charset-collation code, i.e., the tables were created with an older version of MySQL/InnoDB than 4.1.2. #16229: "MySQL/InnoDB uses full explicit table locks in trigger processing" Take a InnoDB table lock only if user has explicitly requested a table lock. Added some additional comments to store_lock() and external_lock(). #16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0" Do not mistake TABLENAME_ibfk_0 for auto-generated id. dict_table_get_highest_foreign_id(): Ignore foreign constraint identifiers starting with the pattern TABLENAME_ibfk_0. #16582: "InnoDB: Error in an adaptive hash index pointer to page" Account for a race condition when dropping the adaptive hash index for a B-tree page. btr_search_drop_page_hash_index(): Retry the operation if a hash index with different parameters was built meanwhile. Add diagnostics for the case that hash node pointers to the page remain. btr_search_info_update_hash(), btr_search_info_update_slow(): Document the parameter "info" as in/out. #16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR section" Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW INNODB STATUS output. dict_foreign_error_report(): Always print a newline after invoking dict_print_info_on_foreign_key_in_create_format(). #16827: "Better InnoDB error message if ibdata files omitted from my.cnf" #17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive hash" CHECK TABLE blocking other queries, by releasing the btr_search_latch periodically during the adaptive hash table validation. #17405: "Valgrind: conditional jump or move depends on unititialised values" buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid testing uninitialized variables.	20 years ago
brian@zim.(none)	2a7c71e309	Changes to create storage directory for storage engines.	21 years ago
marko@hundin.mysql.fi	b3d6f51705	InnoDB: Performance optimizations based on OProfile analysis	21 years ago
marko@hundin.mysql.fi	5faaf74818	InnoDB: Zero fill newly created pages and deleted records to remove old junk and to improve compression ratio. InnoDB: Make implicit type conversions explicit. (Bug #8826)	21 years ago
marko@hundin.mysql.fi	dd48953956	Many files: Implement more compact InnoDB record format. Old format is available as CREATE TABLE ... ROW_FORMAT=DYNAMIC.	21 years ago
heikki@hundin.mysql.fi	6112853cda	Many files: Multiple tablespaces for InnoDB sql_table.cc: Tell explicitly that InnoDB should retrieve all columns in CHECKSUM TABLE sql_update.cc, sql_select.cc, my_base.h: More descriptive flag name HA_EXTRA_RETRIEVE_ALL_COLS	22 years ago
heikki@hundin.mysql.fi	4da7f485b7	Many files: Merge InnoDB-4.0.14: SAVEPOINT now implemented; InnoDB now accepts also column prefix keys; crashing bug in ON UPDATE CASCADE fixed; page checksum formula fixed	23 years ago
heikki@hundin.mysql.fi	9153d88c6b	Many files: Merge InnoDB-4.0.5: new isolation levels READ COMMITTED and READ UNCOMMITTED now supported, selective deadlock resolution mysqld.cc: Change MySQL default isolation level to REPEATABLE READ; note that InnoDB has always had that default, and BDB and MyISAM always run at SERIALIZABLE level anyway	23 years ago
heikki@hundin.mysql.fi	128e872f3c	Many files: Merge 3.23.52	24 years ago
monty@donna.mysql.com	c533308a15	Added Innobase to source distribution	25 years ago

7 Commits (ff758c8c45c4feb78d93eaa8a06ebb22b2685aea)