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* merge.Sergei Golubchik2010-11-251-0/+8
|\ | | | | | | | | | | checkpoint. does not compile.
| * Merge MySQL 5.1.44 into MariaDB.unknown2010-03-041-1/+2
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| * \ Merge MySQL->MariaDBSergey Petrunya2009-09-081-2/+5
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | * Finished Monty and Jani's merge * Some InnoDB tests still fail (because it's old xtradb code run against newer testsuite). They are expected to go after mergning with the latest xtradb.
| * \ \ Merge with base MySQL-5.1-mariaMichael Widenius2008-12-031-13/+0
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| * | | | WL#3262 add mutex lock order checking to safemutex (also called ↵Michael Widenius2008-12-031-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | safe_mutex_deadlock_detector) This writes a warning on stderr if one uses mutex in different order, like if one in one case would lock mutex in the order A,B and in another case would lock mutex in the order B,A This is inspired by and loosely based on the LOCKDEP patch by Jonas Wrong mutex order is either fixed or mutex are marked with MYF_NO_DEADLOCK_DETECTION if used inconsistently (need to be fixed by server team) KNOWN_BUGS.txt: Added information that one need to dump and restore Maria tables include/hash.h: Added prototype function for walking over all elements in a hash include/my_pthread.h: Added my_pthread_mutex_init() and my_pthread_mutex_lock(); These should be used if one wants to disable mutex order checking. Changed names of the nonposix mutex_init functions to not conflict with my_phread_mutex_init() Added and extended structures for mutex deadlock detection. New arguments to sage_mutex_init() and safe_mutex_lock() to allow one to disable mutex order checking. Added variable 'safe_mutex_deadlock_detector' to enable/disable deadlock detection for all pthread_mutex_init() mysys/Makefile.am: Added cleaning of test files Added test_thr_mutex mysys/hash.c: Added hash_iterate() to iterate over all elements in a hash More comments mysys/my_init.c: Added calls to destory all mutex uses by mysys() Added waiting for threads to end before calling TERMINATE() to list not freed memory mysys/my_pthread.c: Changed names to free my_pthread_mutex_init() for mutex-lock-order-checking mysys/my_sleep.c: Fixed too long wait if using 1000000L as argument mysys/my_thr_init.c: Mark THR_LOCK_threads and THR_LOCK_malloc to not have mutex deadlock detection. (We can't have it enabled for this as these are internal mutex used by the detector Call my_thread_init() early as we need thread specific variables enabled for the following pthread_mutex_init() Move code to wait for threads to end to my_wait_for_other_threads_to_die() Don't destroy mutex and conditions unless all threads have died Added my_thread_destroy_mutex() to destroy all mutex used by the mysys thread system Name the thread specific mutex as "mysys_var->mutex" Added my_thread_var_mutex_in_use() to return pointer to mutex in use or 0 if thread variables are not initialized mysys/mysys_priv.h: Added prototypes for functions used internally with mutex-wrong-usage detection mysys/thr_mutex.c: Added runtime detection of mutex used in conflicting order See WL#3262 or test_thr_mutex.c for examples The base idea is for each mutex have two hashes: - mutex->locked_mutex points to all mutex used after this one - mutex->used_mutex points to all mutex which has this mutex in it's mutex->locked_mutex There is a wrong mutex order if any mutex currently locked before this mutex is in the mutex->locked_mutex hash sql/event_queue.cc: Mark mutex used inconsistently (need to be fixed by server team) sql/event_scheduler.cc: Declare the right order to take the mutex sql/events.cc: Mark mutex used inconsistently (need to be fixed by server team) sql/ha_ndbcluster_binlog.cc: Mark mutex used inconsistently (need to be fixed by server team) sql/log.cc: Mark mutex used inconsistently (need to be fixed by server team) sql/mysqld.cc: Use pthread_mutex_trylock instead of pthread_mutex_unlock() when sending kill signal to thread This is needed to avoid wrong mutex order as normally one takes 'current_mutex' before mysys_var->mutex. Added call to free sp cache. Add destruction of LOCK_server_started and COND_server_started. Added register_mutex_order() function to register in which order mutex should be taken (to initiailize mutex_deadlock_detector). Added option to turn off safe_mutex_deadlock_detector sql/protocol.cc: Fixed wrong argument to DBUG_PRINT (found by valgrind) sql/rpl_mi.cc: Mark mutex used inconsistently (need to be fixed by server team) sql/set_var.cc: Remove wrong locking of LOCK_global_system_variables when reading and setting log variables (would cause inconsistent mutex order). Update global variables outside of logger.unlock() as LOCK_global_system_variables has to be taken before logger locks Reviewed by gluh sql/sp_cache.cc: Added function to destroy mutex used by sp cache sql/sp_cache.h: Added function to destroy mutex used by sp cache sql/sql_class.cc: Use pthread_mutex_trylock instead of pthread_mutex_unlock() when sending kill signal to thread This is needed to avoid wrong mutex order as normally one takes 'current_mutex' before mysys_var->mutex. Register order in which LOCK_delete and mysys_var->mutex is taken sql/sql_insert.cc: Give a name for Delayed_insert::mutex Mark mutex used inconsistently (need to be fixed by server team) Move closing of tables outside of di->mutex (to avoid wrong mutex order) sql/sql_show.cc: Don't keep LOCK_global_system_variables locked over value->show_type() as this leads to wrong mutex order storage/innobase/handler/ha_innodb.cc: Disable safe_muted_deadlock_detector for innobase intern mutex (to speed up page cache initialization) storage/maria/ha_maria.cc: Added flag to ha_maria::info() to signal if we need to lock table share or not. This is needed to avoid locking mutex in wrong order storage/maria/ha_maria.h: Added flag to ha_maria::info() to signal if we need to lock table share or not. storage/maria/ma_close.c: Destroy key_del_lock Simplify freeing ftparser_param storage/maria/ma_key.c: Better comment storage/maria/ma_loghandler.c: Mark mutex used inconsistently (need to be fixed by sanja) storage/maria/ma_state.c: More comments storage/maria/ma_test1.c: Ensure that safe_mutex_deadlock_detector is always on (should be, this is just for safety) storage/maria/ma_test2.c: Ensure that safe_mutex_deadlock_detector is always on (should be, this is just for safety)
* | | | | Merge of mysql-trunk-bugfixing into mysql-trunk-merge.Davi Arnaut2010-07-151-1/+1
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| * | | | | Bug#34043: Server loops excessively in _checkchunk() when safemalloc is enabledDavi Arnaut2010-07-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Essentially, the problem is that safemalloc is excruciatingly slow as it checks all allocated blocks for overrun at each memory management primitive, yielding a almost exponential slowdown for the memory management functions (malloc, realloc, free). The overrun check basically consists of verifying some bytes of a block for certain magic keys, which catches some simple forms of overrun. Another minor problem is violation of aliasing rules and that its own internal list of blocks is prone to corruption. Another issue with safemalloc is rather the maintenance cost as the tool has a significant impact on the server code. Given the magnitude of memory debuggers available nowadays, especially those that are provided with the platform malloc implementation, maintenance of a in-house and largely obsolete memory debugger becomes a burden that is not worth the effort due to its slowness and lack of support for detecting more common forms of heap corruption. Since there are third-party tools that can provide the same functionality at a lower or comparable performance cost, the solution is to simply remove safemalloc. Third-party tools can provide the same functionality at a lower or comparable performance cost. The removal of safemalloc also allows a simplification of the malloc wrappers, removing quite a bit of kludge: redefinition of my_malloc, my_free and the removal of the unused second argument of my_free. Since free() always check whether the supplied pointer is null, redudant checks are also removed. Also, this patch adds unit testing for my_malloc and moves my_realloc implementation into the same file as the other memory allocation primitives. client/mysqldump.c: Pass my_free directly as its signature is compatible with the callback type -- which wasn't the case for free_table_ent.
* | | | | | Unset the execute bit where it's not needed.Davi Arnaut2010-07-031-0/+0
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* | | | | A pre-requisite for WL#5419 "LOCK_open scalability: Konstantin Osipov2010-06-101-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | make tdc_refresh_version an atomic counter". Backport the trivial changes from mysql-trunk-iplus.
* | | | | merge from mysql-trunk-bugfixingJon Olav Hauglid2010-04-201-2/+5
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| * | | | | WL#5030: Split and remove mysql_priv.hMats Kindahl2010-03-311-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch: - Moves all definitions from the mysql_priv.h file into header files for the component where the variable is defined - Creates header files if the component lacks one - Eliminates all include directives from mysql_priv.h - Eliminates all circular include cycles - Rename time.cc to sql_time.cc - Rename mysql_priv.h to sql_priv.h
* | | | | | Bug #52367 Deadlock involving SET GLOBAL EVENT_SCHEDULER = OFFJon Olav Hauglid2010-04-141-4/+4
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | during rqg_mdl_deadlock test The problem was that if two connection threads simultaneously tries to execute "SET GLOBAL EVENT_SCHEDULER = OFF", one of them could hang waiting for the scheduler to stop. The first connection thread would kill the event scheduler thread and then start waiting for it to exit. The second connection thread would then find the event scheduler thread in the process of exiting and also wait for it to exit. However, since the event scheduler thread used signal to wake only one waiting thread, the other connection thread would be left waiting. This bug was a regression introduced by the fix for Bug#51160. Before #51160 it was not possible for two connection threads to try to stop the event scheduler thread simultaneously. This patch fixes the problem my making sure the event scheduler thread uses broadcast to notify all waiters that it is exiting. No test case added as this would require adding debug sync points to parts of the code where sync points are currently not used. The patch has been tested with the non-deterministic test case from the bug description as well as using the RQG.
* | | | | Followup to Bug#45225 Locking: hang if drop table with no timeoutJon Olav Hauglid2010-02-241-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch prevents system threads and system table accesses from using user-specified values for "lock_wait_timeout". Instead all such accesses are done using the default value (1 year). This prevents background tasks (such as replication, events, accessing stored function definitions, logging, reading time-zone information, etc.) from failing in cases where the global value of "lock_wait_timeout" is set very low. The patch also simplifies the open tables API. Rather than adding another convenience function for opening and locking system tables, this patch removes most of the existing convenience functions for open_and_lock_tables_derived(). Before, open_and_lock_tables() was a convenience function that enforced derived tables handling, while open_and_lock_tables_derived() was the main function where derived tables handling was optional. Now, this convencience function is gone and the main function is renamed to open_and_lock_tables(). No test case added as it would have required the use of --sleep to check that system threads and system tables have a different timeout value from the user-specified "lock_wait_timeout" system variable.
* | | | | Manual merge from mysql-trunk-merge.Alexander Nozdrin2010-02-031-1/+2
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: - mysql-test/t/bug46080.test
| * \ \ \ \ Manual merge from mysql-5.1-bugteam.Alexander Nozdrin2010-02-031-1/+2
| |\ \ \ \ \ | | | |_|_|/ | | |/| | | | | | | | | | | | | | | | | | | | | Conflicts: - mysql-test/collections/default.experimental - mysql-test/suite/rpl/r/rpl_sp.result
| | * | | | fixed various pb2 test failures on windows.Georgi Kodinov2010-02-021-1/+2
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* | | | | WL#2360 Performance schemaMarc Alff2010-01-111-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | Part V: performance schema implementation
* | | | | WL#2360 Performance schemaMarc Alff2010-01-061-17/+25
| | | | | | | | | | | | | | | | | | | | | | | | | Part IV: sql instrumentation
* | | | | WL#4738 streamline/simplify @@variable creation processSergei Golubchik2009-12-221-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug#16565 mysqld --help --verbose does not order variablesBug#20413 sql_slave_skip_counter is not shown in show variables Bug#20415 Output of mysqld --help --verbose is incomplete Bug#25430 variable not found in SELECT @@global.ft_max_word_len; Bug#32902 plugin variables don't know their names Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting! Bug#34829 No default value for variable and setting default does not raise error Bug#34834 ? Is accepted as a valid sql mode Bug#34878 Few variables have default value according to documentation but error occurs Bug#34883 ft_boolean_syntax cant be assigned from user variable to global var. Bug#37187 `INFORMATION_SCHEMA`.`GLOBAL_VARIABLES`: inconsistent status Bug#40988 log_output_basic.test succeeded though syntactically false. Bug#41010 enum-style command-line options are not honoured (maria.maria-recover fails) Bug#42103 Setting key_buffer_size to a negative value may lead to very large allocations Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled Bug#44797 plugins w/o command-line options have no disabling option in --help Bug#46314 string system variables don't support expressions Bug#46470 sys_vars.max_binlog_cache_size_basic_32 is broken Bug#46586 When using the plugin interface the type "set" for options caused a crash. Bug#47212 Crash in DBUG_PRINT in mysqltest.cc when trying to print octal number Bug#48758 mysqltest crashes on sys_vars.collation_server_basic in gcov builds Bug#49417 some complaints about mysqld --help --verbose output Bug#49540 DEFAULT value of binlog_format isn't the default value Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix) Bug#49644 init_connect and \0 Bug#49645 init_slave and multi-byte characters Bug#49646 mysql --show-warnings crashes when server dies CMakeLists.txt: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled client/mysql.cc: don't crash with --show-warnings when mysqld dies config/ac-macros/plugins.m4: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled include/my_getopt.h: comments include/my_pthread.h: fix double #define mysql-test/mysql-test-run.pl: run sys_vars suite by default properly recognize envirinment variables (e.g. MTR_MAX_SAVE_CORE) set to 0 escape gdb command line arguments mysql-test/suite/sys_vars/r/rpl_init_slave_func.result: init_slave+utf8 bug mysql-test/suite/sys_vars/t/rpl_init_slave_func.test: init_slave+utf8 bug mysys/my_getopt.c: Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting! Bug#46586 When using the plugin interface the type "set" for options caused a crash. Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix) mysys/typelib.c: support for flagset sql/ha_ndbcluster.cc: backport from telco tree sql/item_func.cc: Bug#49644 init_connect and \0 Bug#49645 init_slave and multi-byte characters sql/sql_builtin.cc.in: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled sql/sql_plugin.cc: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled Bug#32902 plugin variables don't know their names Bug#44797 plugins w/o command-line options have no disabling option in --help sql/sys_vars.cc: all server variables are defined here storage/myisam/ft_parser.c: remove unnecessary updates of param->quot storage/myisam/ha_myisam.cc: myisam_* variables belong here strings/my_vsnprintf.c: %o and %llx unittest/mysys/my_vsnprintf-t.c: %o and %llx tests vio/viosocket.c: bugfix: fix @@wait_timeout to work with socket timeouts (vs. alarm thread)
* | | | | MergeMikael Ronstrom2009-12-141-1/+0
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| * | | | | Bug#32115: Bad use of Name_resolution_context from current LEX in partitioningMattias Jonsson2009-11-201-1/+0
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | port from mysql-next (5.4) to mysql-next-mr-bugfixing (5.5/5.6?) 2755 Konstantin Osipov 2008-11-27 Bug#32115 will remove the pre-requisite to initialize LEX to open tables. This dependency was added in 5.1 and was supposed to be removed in 6.0. Remove asserts and initialization of LEX in places where we don't deal with partitioned tables. sql/sp_head.cc: Fix a typo.
* | | | | WL#5138, fixed review commentsMikael Ronstrom2009-11-231-9/+1
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* | | | | WL#5138, review fixesMikael Ronstrom2009-11-201-9/+9
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* | | | | WL#5138 merged to mysql-next-mrMikael Ronstrom2009-11-201-5/+12
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| * | | | Backported my_atomic from 6.0-codebase and added support for 64-bit atomics ↵Mikael Ronstrom2009-10-121-5/+12
| |/ / / | | | | | | | | | | | | to enable removal of LOCK_thread_count from every query, removed LOCK_thread_count from use in dispatch_command and close of query which is used in every query, now uses atomic increments/decrements instead
* | | | Backport of the following revision from 6.0-codebase:Konstantin Osipov2009-10-131-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ---------------------------------------------------------- revno: 2617.1.12 committer: kostja@bodhi.(none) timestamp: Sun 2008-04-20 11:18:52 +0400 message: A fix for Bug#32771 "events_bugs.test fails randomly". In Event_scheduler::stop(), which may be called from destructor, wait synchronously for the parallel Event_scheduler::stop() to complete before returning. This fixes a race between MySQL shutdown thread and the scheduler thread who could call stop() in parallel. sql/event_scheduler.cc: There was a race condition between the shutdown thread and the scheduler thread: the shutdown thread could delete the scheduler mutex before the sheduler has stopped.
* | | | WL#2110 (SIGNAL)Marc Alff2009-09-101-6/+7
|/ / / | | | | | | | | | | | | | | | | | | | | | WL#2265 (RESIGNAL) Manual merge of SIGNAL and RESIGNAL to mysql-trunk-signal, plus required dependencies.
* | | Bug#43587: Putting event_scheduler=1 in init SQL file crashesDavi Arnaut2009-07-241-0/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mysqld The problem was that enabling the event scheduler inside a init file caused the server to crash upon start-up. The crash occurred because the event scheduler wasn't being initialized before the commands in the init-file are processed. The solution is to initialize the event scheduler before the init file is read. The patch also disables the event scheduler during bootstrap and makes the bootstrap operation robust in the presence of background threads. mysql-test/std_data/init_file.dat: Add test case for Bug#43587 sql/event_scheduler.cc: Signal that the thread_count has been decremented. sql/events.cc: Disable the event scheduler during bootstrap. sql/mysql_priv.h: Export variable. sql/mysqld.cc: Initialize the event scheduler before commands are executed. sql/sql_parse.cc: Signal that the bootstrap thread is done.
| * | | Code review for Bug#43587 Putting event_scheduler=1 in init SQL file crashes Konstantin Osipov2009-07-241-0/+3
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* | | Merge from 5.0Gleb Shchepa2009-07-241-2/+2
|/ / | | | | | | | | ****** manual merge 5.0-bugteam --> 5.1-bugteam (bug 38816)
* | Bug#38066 Events log 'note' level messages by default in the error logKristofer Pettersson2008-10-071-13/+0
|/ | | | | | | | | | | | | | The event scheduler logged start-, stop-execution messages in the error log on lowest log-warning level which would lead to very large log files in a short time. This patch changes this behavior so that no start-/stop-messages are logged. Log messages stating successful execution are also removed. sql/event_scheduler.cc: * Removed logging for start-/stop-events. * Removed log-messages stating successful execution of events.
* Merge mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-mainunknown2007-11-121-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into mattiasj-laptop.(none):/home/mattiasj/clones/mysql-5.1-last_with_main libmysqld/lib_sql.cc: Auto merged mysql-test/include/mix1.inc: Auto merged mysql-test/r/innodb_mysql.result: Auto merged sql/event_scheduler.cc: Auto merged sql/events.cc: Auto merged sql/ha_ndbcluster_binlog.cc: Auto merged sql/handler.cc: Auto merged sql/item_func.cc: Auto merged sql/slave.cc: Auto merged sql/sql_acl.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_connect.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.h: Auto merged sql/sql_yacc.yy: Auto merged
| * Bug#31210 - INSERT DELAYED crashes server when used onunknown2007-11-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | partitioned table Trying INSERT DELAYED on a partitioned table, that has not been used right before, crashes the server. When a table is used for select or update, it is kept open for some time. This period I mean with "right before". Information about partitioning of a table is stored in form of a string in the .frm file. Parsing of this string requires a correctly set up lexical analyzer (lex). The partitioning code uses a new temporary instance of a lex. But it does still refer to the previously active lex. The delayd insert thread does not initialize its lex though... Added initialization for thd->lex before open table in the delayed thread and at all other places where it is necessary to call lex_start() if all tables would be partitioned and need to parse the .frm file. mysql-test/r/partition_hash.result: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added test result mysql-test/t/partition_hash.test: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added test sql/event_scheduler.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/events.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/ha_ndbcluster_binlog.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/slave.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/sql_acl.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/sql_base.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Asserted that lex is initialized in open_table(). sql/sql_connect.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/sql_insert.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added initialization for thd->lex before open table. sql/sql_lex.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added 'is_lex_started' to test if lex is initialized. sql/sql_lex.h: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Added 'is_lex_started' to test if lex is initialized. sql/sql_plugin.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/sql_servers.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/sql_udf.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table(). sql/table.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Asserted that lex is initialized in open_table_from_share(). sql/tztime.cc: Bug#31210 - INSERT DELAYED crashes server when used on partitioned table Initialized lex for later use in open_table().
* | Patch for BUG#31111: --read-only crashes MySQL (events fail to load).unknown2007-10-191-0/+7
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There actually were several problems here: - WRITE-lock is required to load events from the mysql.event table, but in the read-only mode an ordinary user can not acquire it; - Security_context::master_access attribute was not properly initialized in Security_context::init(), which led to differences in behavior with and without debug configure options. - if the server failed to load events from mysql.event, it forgot to close the mysql.event table, that led to the coredump, described in the bug report. The patch is to fix all these problems: - Use the super-user to acquire WRITE-lock on the mysql.even table; - The WRITE-lock is acquired by the event scheduler in two cases: - on initial loading of events from the database; - when an event has been executed, so its attributes should be updated. Other cases when WRITE-lock is needed for the mysql.event table happen under the user account. So, nothing should be changed there for the read-only mode. The user is able to create/update/drop an event only if he is a super-user. - Initialize Security_context::master_access; - Close the mysql.event table in case something went wrong. mysql-test/r/events_bugs.result: Update result file. mysql-test/t/events_bugs.test: A test case for BUG#31111: --read-only crashes MySQL (events fail to load). sql/event_data_objects.cc: When the worker thread is going to drop event after the execution we should do it under the super-user privileges in order to be able to lock the mysql.event table for writing in the read-only mode. This is a system operation, where user SQL can not be executed. So, there is no risk in compromising security by dropping an event under the super-user privileges. sql/event_db_repository.cc: 1. Close tables if something went wrong in simple_open_n_lock_tables(); 2. As soon as the system event scheduler thread is running under the super-user privileges, we should always be able to acquire WRITE-lock on the mysql.event table. However, let's have an assert to check this. sql/event_scheduler.cc: Run the system event scheduler thread under the super-user privileges. In particular, this is needed to be able to lock the mysql.event table for writing when the server is running in the read-only mode. The event scheduler executes only system operations and does not execute user SQL (this is what the worker threads for). So, there is no risk in compromising security by running the event scheduler under the super-user privileges. sql/events.cc: Open the mysql.event table as the super user to be able to acquire WRITE-lock in the read-only mode. sql/sql_class.cc: Initialize Security_context::master_acces.
* Provide initial module structure to Doxygen.unknown2007-08-151-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sql/event_data_objects.cc: Add module comments. sql/event_data_objects.h: Add module comments. sql/event_db_repository.cc: Add module comments. sql/event_db_repository.h: Add module comments. sql/event_queue.cc: Add module comments. sql/event_queue.h: Add module comments. sql/event_scheduler.cc: Add module comments. sql/event_scheduler.h: Add module comments. sql/events.cc: Add module comments. sql/events.h: Add module comments. sql/lock.cc: Add module comments. sql/sp_head.h: Add module comments. sql/sql_base.cc: Add module comments. sql/sql_lex.h: Add module comments. sql/sql_parse.cc: Add module comments. sql/sql_select.cc: Add module comments. sql/sql_yacc.yy: Add module comments.
* Slow query log to file now displays queries with microsecond precissionunknown2007-07-301-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | --long-query-time is now given in seconds with microseconds as decimals --min_examined_row_limit added for slow query log long_query_time user variable is now double with 6 decimals Added functions to get time in microseconds Added faster time() functions for system that has gethrtime() (Solaris) We now do less time() calls. Added field->in_read_set() and field->in_write_set() for easier field manipulation by handlers set_var.cc and my_getopt() can now handle DOUBLE variables. All time() calls changed to my_time() my_time() now does retry's if time() call fails. Added debug function for stopping in mysql_admin_table() when tables are locked Some trivial function and struct variable renames to avoid merge errors. Fixed compiler warnings Initialization of some time variables on windows moved to my_init() include/my_getopt.h: Added support for double arguments include/my_sys.h: Fixed wrong type to packfrm() Added new my_time functions include/mysql/plugin.h: Added support for DOUBLE libmysql/CMakeLists.txt: Added new time functions libmysql/Makefile.shared: Added new time functions mysql-test/r/variables.result: Testing of long_query_time mysql-test/t/variables.test: Testing of long_query_time mysys/charset.c: Fixed compiler warnings mysys/default_modify.c: Fixed compiler warnings mysys/hash.c: Fixed compiler warnings mysys/mf_getdate.c: Use my_time() mysys/mf_iocache2.c: Fixed compiler warnings mysys/mf_pack.c: Fixed compiler warnings mysys/mf_path.c: Fixed compiler warnings mysys/my_append.c: Fixed compiler warnings mysys/my_compress.c: Fixed compiler warnings mysys/my_copy.c: Fixed compiler warnings mysys/my_gethwaddr.c: Fixed compiler warnings mysys/my_getopt.c: Added support for double arguments mysys/my_getsystime.c: Added functions to get time in microseconds. Added faster time() functions for system that has gethrtime() (Solaris) Moved windows initialization code to my_init() mysys/my_init.c: Added initializing of variables needed for windows time functions mysys/my_static.c: Added variables needed for windows time functions mysys/my_static.h: Added variables needed for windows time functions mysys/my_thr_init.c: Added THR_LOCK_time, used for faster my_time() mysys/mysys_priv.h: Added THR_LOCK_time, used for faster my_time() mysys/thr_alarm.c: time() -> my_time() sql/event_data_objects.cc: end_time() -> set_current_time() sql/event_queue.cc: end_time() -> set_current_time() sql/event_scheduler.cc: Fixed compiler warnings sql/field.h: Added field->in_read_set() and field->in_write_set() for easier field manipulation by handlers sql/item.h: Added decimal to Item_float(double) sql/item_cmpfunc.h: Added decimal to Item_float(double) sql/item_timefunc.cc: time() -> my_time() sql/item_xmlfunc.cc: Fixed compiler warning sql/lock.cc: lock_time() -> set_time_after_lock() sql/log.cc: Timing in slow query log to file is now done in microseconds Changed some while() loops to for() loops. Fixed indentation time() -> my_time() sql/log.h: Slow query logging is now done based on microseconds sql/log_event.cc: time() -> my_time() Fixed arguments to new Item_float() sql/mysql_priv.h: Fixed compiler warnings Added opt_log_slow_slave_statements sql/mysqld.cc: Added --log_slow_slave_statements and --min_examined_row_limit --long-query-time now takes a double argument with microsecond resolution Don't write shutdown message when using --help Removed not needed \n Thread create time and connect time is now done in microseconds time() -> my_time() Avoid some time() calls sql/net_serv.cc: Fixed compiler warnings sql/parse_file.cc: time() -> my_time() sql/set_var.cc: Added support for DOUBLE variables Added support for variables that are given in seconds with microsecond resolution sql/set_var.h: Added support for variables that are given in seconds with microsecond resolution sql/slave.cc: Allow logging of slave queries to slow query log if 'opt_log_slow_slave_statements' is given time() -> my_time() sql/sql_cache.h: Fixed compiler warning() sql/sql_class.cc: Initialize new THD variables sql/sql_class.h: long_query_time is now in microseconds Added min_examined_row_limit Reordered some THD elements for higher efficency Added timers in microseconds (connect_utime, thr_create_utime, start_utime and utime_after_lock) Start of query is now recorded both in seconds and in microseconds. Following renames was made for more clarity and avoid merge problems from earlier versions: connect_time -> connect_utime thr_create_time -> thr_create_utime end_time() -> set_current_time() lock_time() -> set_time_after_lock() Added THD::start_utime, which is start of query in microseconds from some arbitary time Added function THD::current_utime() Removed safe_time() as retry's are handled in my_time() sql/sql_connect.cc: User resources are now using microsecond resolution sql/sql_insert.cc: end_time() -> set_current_time() sql-common/client.c: time() -> my_time() sql/sql_parse.cc: Testing if we should print to slow_query_log() is now done with microsecond precission. If min_examined_row_limit is given, only log queries to slow query log that has examined more rows than this. sql/sql_select.cc: Simplify code now that Item_float() takes decimals as argument sql/sql_show.cc: time() -> my_time() Added support for SYS_DOUBLE sql/sql_table.cc: Added debug function for stopping in mysql_admin_table() when tables are locked sql/structs.h: intime -> reset_utime
* Fix for Bug#28963 "Missing DBUG_RETURN message when stopping event unknown2007-06-101-0/+2
| | | | | | | | | scheduler". Add missing DBUG_VOID_RETURN sql/event_scheduler.cc: Fix for Bug#28963 "Missing DBUG_RETURN message when stopping event scheduler"
* Fix for bug#28075 COM_DEBUG crashes mysqldunknown2007-05-211-2/+7
| | | | | | | | | | | | | | | | | | | | | Uninitialized in the constructor member variables were pointing to nirvana and causing a crash when debug information of the Event Scheduler was dumped in result to COM_DEBUG packet sent to the server. sql/event_queue.cc: Initialize member variables or they will point to nirvana and could possible cause a crash during dumping of debug information. sql/event_queue.h: remove unneeded line sql/event_scheduler.cc: Initialize member variables or they will point to nirvana and could possible cause a crash during dumping of debug information. sql/event_scheduler.h: remove unneeded state
* An attempt to fix a sporadic valgrind memory leak in Event Scheduler:unknown2007-04-131-36/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | streamline the event worker thread work flow and try to eliminate possibilities for memory corruptions that might have been lurking in previous (complicated) code. This patch: * removes Event_job_data::compile that was never used * cleans up Event_job_data::execute to minimize juggling with thread context and eliminate unneded code paths * Implements Security_context::change/restore_security_context to be able to re-use these methods in all stored programs This is to maybe fix Bug#27733 "Valgrind failures in remove_table_from_cache". Review comments applied. sql/event_data_objects.cc: Remove Event_job_data::compile, which was never used without Event_job_data::execute(). Merge the implementation of compile() with Event_job_data::execute(). Reuse existing functions to prepare the event worker thread for execution instead of some previously copy-pasted code. Do not change and restore the current database inside Event_job_data::execute(), just set the current database in the thread, that is enough to parse and execute an event. sql/event_data_objects.h: Update declarations. sql/event_scheduler.cc: Allocate Event_job_data on stack. sql/item_func.cc: Update to match the new declaration of restore_security_context() sql/sp_head.cc: Update to match the new declaration of change/restore_security_context() sql/sql_class.cc: Move change/restore_security_context to class Security_context. Add more comments. sql/sql_class.h: Make change/restore_security_context methods of Security_context. That allows us to reuse them in Event Scheduler (instead of a copy-paste presently used there). sql/sql_trigger.cc: Update to match the new declaration of change/restore_security_context()
* Remove a race between Event Scheduler shutdown and SHOW PROCESSLIST.unknown2007-04-061-17/+7
| | | | | | | | | | | | | | | This will hopefully fix events.test failure on vmware-win32, where scheduling is very primitive. mysql-test/t/events_scheduling.test: This test case has no races now and can be enabled under valgrind. sql/event_scheduler.cc: Make Event Scheduler thread shutdown more synchronous: report successful shutdown only after having removed the scheduler thread from the global list of threads. This ensures that after the scheduler has been stopped, its thread is not present in SHOW PROCESSLIST output.
* Post-merge and post-review fixes for the patch forunknown2007-04-051-22/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug#23631 "Events: SHOW VARIABLES doesn't work when mysql.event is damaged: mysql-test/r/events.result: Update results (a post-merge fix) mysql-test/r/events_bugs.result: Update results (a post-merge fix) mysql-test/r/events_scheduling.result: Update results (a post-merge fix) mysql-test/t/events_scheduling.test: Make sure this test has no races. sql/event_data_objects.cc: Manual post-merge fix for the events replication patch. sql/event_data_objects.h: A post-merge fix. sql/event_db_repository.cc: A post-merge fix. sql/event_scheduler.cc: We should drop the event inside ::execute since there we have the right credentials to do so (otherwise Events::drop_event returns "access denied" error). sql/events.cc: A post-review fix for: rename start_or_stop_event_scheduler to switch_event_scheduler_state. sql/events.h: A post-review fix for: rename start_or_stop_event_scheduler to switch_event_scheduler_state. sql/set_var.cc: A post-review fix for: rename start_or_stop_event_scheduler to switch_event_scheduler_state. sql/sql_yacc.yy: Remove unused declaratoins.
* A set of changes aiming to make the Event Scheduler more user-friendlyunknown2007-04-051-60/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when there are no up-to-date system tables to support it: - initialize the scheduler before reporting "Ready for connections". This ensures that warnings, if any, are printed before "Ready for connections", and this message is not mangled. - do not abort the scheduler if there are no system tables - check the tables once at start up, remember the status and disable the scheduler if the tables are not up to date. If one attempts to use the scheduler with bad tables, issue an error message. - clean up the behaviour of the module under LOCK TABLES and pre-locking mode - make sure implicit commit of Events DDL works as expected. - add more tests Collateral clean ups in the events code. This patch fixes Bug#23631 Events: SHOW VARIABLES doesn't work when mysql.event is damaged mysql-test/r/events.result: Update results. mysql-test/r/events_bugs.result: Update results. mysql-test/r/events_restart_phase1.result: Update results. mysql-test/r/events_restart_phase2.result: Update results. mysql-test/r/events_restart_phase3.result: Update results. mysql-test/r/events_scheduling.result: Update results. mysql-test/r/events_time_zone.result: Update results. mysql-test/t/events.test: Add new tests for tampering with mysql.event and some more tests for sub-statements, LOCK TABLES mode and pre-locking. mysql-test/t/events_bugs.test: Move the non-concurrent part of test for Bug 16420 to this file. mysql-test/t/events_restart_phase1.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase2.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_restart_phase3.test: Rewrite events_restart_* tests to take into account that now we check mysql.event table only once, at server startup. mysql-test/t/events_scheduling.test: Add more coverage for event_scheduler global variable. mysql-test/t/events_time_zone.test: Move the non-concurrent part of the tests for Bug 16420 to events_bugs.test sql/event_data_objects.cc: Move update_timing_fields functionality to Event_db_repository. Make loading of events from a table record more robust to tampering with the table - now we do not check mysql.event on every table open. sql/event_data_objects.h: Cleanup. sql/event_db_repository.cc: Now Event_db_repository is responsible for table I/O only. All the logic of events DDL is handled outside, in Events class please refer to the added test coverage to see how this change affected the behavior of Event Scheduler. Dependency on sp_head.h and sp.h removed. Make this module robust to tweaks with mysql.event table. Move check_system_tables from events.cc to this file sql/event_db_repository.h: Cleanup declarations (remove unused ones, change return type to bool from int). sql/event_queue.cc: Update to adapt to the new start up scheme of the Event Scheduler. sql/event_queue.h: Cleanup declarations. sql/event_scheduler.cc: Make all the error messages uniform: [SEVERITY] Event Scheduler: [user][schema.event] message Using append_identifier for error logging was an overkill - we may need it only if the system character set may have NUL (null character) as part of a valid identifier, this is currently never the case, whereas additional quoting did not look nice in the log. sql/event_scheduler.h: Cleanup the headers. sql/events.cc: Use a different start up procedure of Event Scheduler: - at start up, try to check the system tables first. If they are not up-to-date, disable the scheduler. - try to load all the active events. In case of a load error, abort start up. - do not parse an event on start up. Parsing only gives some information about event validity, but far not all. Consolidate the business logic of Events DDL in this module. Now opt_event_scheduler may change after start up and thus is protected by LOCK_event_metadata mutex. sql/events.h: Use all-static-data-members approach to implement Singleton pattern. sql/mysqld.cc: New invocation scheme of Events. Move some logic to events.cc. Initialize the scheduler before reporting "Ready for connections". sql/set_var.cc: Clean up sys_var_thd_sql_mode::symbolic_mode_representation to work with a LEX_STRING. Move more logic related to @@events_scheduler global variable to Events module. sql/set_var.h: Update declarations. sql/share/errmsg.txt: If someone tampered with mysql.event table after the server has started we no longer give him/her a complete report what was actually broken. Do not send the user to look at the error log in such case, as there is nothing there (check_table_intact is not executed). sql/sp_head.cc: Update to a new declaration of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_db.cc: New invocation scheme of Events module. sql/sql_parse.cc: Move more logic to Events module. Make sure that we are consistent in the way access rights are checked for Events DDL: always after committing the current transaction and checking the system tables. sql/sql_show.cc: Update to the new declarations of sys_var_thd_sql_mode::symbolic_mode_representation sql/sql_test.cc: New invocation scheme of events. sql/table.cc: mysql.event is a system table. Update check_table_intact to be concurrent, more verbose, and less smart. sql/table.h: Add a helper method. mysql-test/r/events_trans.result: New BitKeeper file ``mysql-test/r/events_trans.result'' mysql-test/t/events_trans.test: New BitKeeper file ``mysql-test/t/events_trans.test'': test cases for Event Scheduler that require a transactional storage engine.
* Change module prefix in error messages: SCHEDULER -> Event Scheduler,unknown2007-03-231-17/+24
| | | | | | | | | | | | | | | | | | | to not collide with the recently introduced thread scheduler module. mysql-test/r/events.result: Update test results with new error texts (SCHEDULER -> Event Scheduler, grammar). sql/event_data_objects.cc: SCHEDULER -> Event Scheduler. sql/event_queue.cc: SCHEDULER -> Event Scheduler. sql/event_scheduler.cc: SCHEDULER -> Event Scheduler. sql/events.cc: SCHEDULER -> Event Scheduler. sql/share/errmsg.txt: SCHEDULER -> Event Scheduler. Fix English grammar.
* Trivial cleanups and whitespace change in Event Scheduler code.unknown2007-03-231-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | A larger patch is to come, this is to exclude rudimentary changes from it. sql/event_data_objects.cc: Whitespace change. sql/event_data_objects.h: Remove debug allocators - we have safemalloc. sql/event_db_repository.cc: Whitespace change. sql/event_db_repository.h: Whitespace change. sql/event_queue.cc: Remove an unused structure. Whitespace change. sql/event_queue.h: Whitespace. sql/event_scheduler.cc: Whitespace change. sql/event_scheduler.h: Add comments. Whitespace change. sql/events.cc: Whitespace change. sql/events.h: Trivial cleanups.
* BUG#16420: Events: timestamps become UTCunknown2007-03-161-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BUG#26429: SHOW CREATE EVENT is incorrect for an event that STARTS NOW() BUG#26431: Impossible to re-create an event from backup if its STARTS clause is in the past WL#3698: Events: execution in local time zone The problem was that local times specified by the user in AT, STARTS and ENDS of CREATE EVENT/ALTER EVENT statement were converted to UTC, and the original time zone was forgotten. This way, event scheduler couldn't honor Daylight Saving Time shifts, and times shown to the user were also in UTC. Additionally, CREATE EVENT didn't allow times in the past, thus preventing straightforward event restoration from old backups. This patch reworks event scheduler time computations, performing them in the time zone associated with the event. Also it allows times to be in the past. The patch adds time_zone column to mysql.event table. NOTE: The patch is almost final, but the bug#9953 should be pushed first. client/mysqldump.c: Before every CREATE EVENT, output its time zone. mysql-test/include/wait_condition.inc: Add optional $wait_timeout parameter. mysql-test/lib/init_db.sql: Add time_zone column. mysql-test/r/events.result: Update result. mysql-test/r/events_bugs.result: Update result. mysql-test/r/events_grant.result: Update result. mysql-test/r/events_restart_phase1.result: Update result. mysql-test/r/events_scheduling.result: Update result. mysql-test/r/mysqldump.result: Update result. mysql-test/r/ps.result: Update result. mysql-test/r/system_mysql_db.result: Update result. mysql-test/t/events.test: Remove STARTS from the result, as it depends on current time. mysql-test/t/events_bugs.test: Time in the past is no longer an error. mysql-test/t/events_restart_phase1.test: Fill new column 'time_zone' in mysql.event. mysql-test/t/events_scheduling.test: Cleanup: disable event scheduler. scripts/mysql_create_system_tables.sh: Add new column 'time_zone' to mysql.event. scripts/mysql_fix_privilege_tables.sql: Add new column 'time_zone' to mysql.event. sql/event_data_objects.cc: The essence of the change is the following: - for internal times use my_time_t instead of TIME. Assignment and comparison is done now on plain numbers. - in init_execute_at(), init_starts(), init_ends() convert given time to number of seconds since Epoch (aka Unix time, in UTC). - handle time_zone field loading and storing. - in get_next_time(), Unix time is converted back to event time zone, interval is added, and the result is converted to UTC again. - fix Event_timed::get_create_event() to report STARTS and ENDS. - before executing the event body we set thread time zone to the event time zone. sql/event_data_objects.h: Add time_zone member to Event_basic class. Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_db_repository.cc: Add time_zone column handling. Give a warning and do not create an event if its execution time is in the past, and ON COMPLETION NOT PRESERVE is set, because such an event should be dropped by that time. Also, do not allow ALTER EVENT to set execution time in the past when ON COMPLETION NOT PRESERVE is set. sql/event_db_repository.h: Add enum member for new time zone column. sql/event_queue.cc: Replace handling of broken down times with simple handling of my_time_t. sql/event_queue.h: Store internal times in my_time_t (number of seconds since Epoch), rather than in broken down TIME structure. sql/event_scheduler.cc: Add TODO comment. sql/events.cc: Send time_zone column for SHOW CREATE EVENT. sql/share/errmsg.txt: Update error message, and add two more errors. sql/sql_show.cc: Add TIME_ZONE column to the output of SHOW EVENTS. mysql-test/r/events_time_zone.result: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/r/events_time_zone.result mysql-test/t/events_time_zone.test: BitKeeper file /home/tomash/src/mysql_ab/mysql-5.1-wl3698/mysql-test/t/events_time_zone.test
* Fixed compiler warningsunknown2007-03-011-8/+8
| | | | | | | | | | | server-tools/instance-manager/angel.cc: Compiler warnings sql/event_queue.cc: Compier warnings sql/event_scheduler.cc: Compiler warnings sql/events.cc: Compiler warnings
* Manual merge of 5.1 into 5.1-runtimeunknown2007-03-011-21/+24
| | | | | | | | | | | mysql-test/r/subselect.result: Manual merge server-tools/instance-manager/mysqlmanager.cc: Manual merge sql/event_scheduler.cc: Manual merge sql/sql_parse.cc: Manual merge
* Fix for memory leaks introduced with the push of patch for bug#22740.unknown2007-01-311-0/+2
| | | | | | | | | | | | | Original patch did not have these leaks, they were introduced later during manual applying of the patch. sql/event_data_objects.cc: Original patch was not aware of the requirement to delete lex.sphead before doing anything else (bug#21856), and that was missed when the patch was applied later. sql/event_scheduler.cc: The line was lost during manual patch applying.
* Fix for bug#22740 Events: Decouple Event_queue from Event_db_repositoryunknown2007-01-291-46/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements the idea of the bug report by making Event_queue unaware of Event_db_repository by making a higher level class - Events, which is aware of most of all classes, responsible for passing all data needed for adding/updating/deleting an event to/from the queue. Introduces few new classes : - Event_worker_thread - Event_queue_element_for_exec sql/event_data_objects.cc: Introduced a new class Event_queue_element_for_exec According to Konstantin it should be named Event_name and hold only two LEX_STRINGs but `dropped` is not saved on disk and will require additional logic in Event_worker_thread class, after loading to compute whether the event should be dropped or not. It's easier just to pass this flag around. Removed Event_queue_element::drop(). This method was a source of a race condition. At the place where the event should be dropped we call Events::drop_event() which is the only code-flow for dropping. In addition, because ::drop_event() holds Events::LOCK_metadata there is no source of race conditions. Before this patch dropping from ::drop() wasn't under LOCK_metadata and races were possible. Because Events::open_event_table was removed as a method, provisionally events_event_db_repository was exported from events.cc till a solution is build where Event_queue_element does not access directly mysql.event. sql/event_data_objects.h: New class Event_queue_element_for_exec added which is returned from Event_queue::get_top_if_time() and passed through Event_scheduler to Event_worker_thread. There by using the (db)name Event_job_data is instanciated and executed. Dropped Event_queue_element::drop() thd was moved out of Event_job_data as it is now part of Event_queue_element_for_exec sql/event_queue.cc: Removed dependency of Event_queue on Event_db_repository. The instantiation of Event_job_data was moved to class Event_worker_thread In place is a return of an object of Event_queue_element_for_exec is used later for instantiating Event_job_data. The `dropped` flag of Event_queue_element is passed over Event_queue_element_for_exec to the code in Event_worker_thread. sql/event_queue.h: Removed dependency of Event_queue on Event_db_repository Removed dependency on Event_scheduler sql/event_scheduler.cc: Added class Event_worker_thread, which is used during the execution of an event. It has a static init() method to get a pointer to Event_db_repository to be used for instantiation of Event_job_data object. This object it then executed. sql/event_scheduler.h: Added class Event_worker_thread, which is used during the execution of an event. sql/events.cc: Removed Events::open_event_table() because it was a product of a bad architecture. sql/events.h: Removed friend definition, unneeded. Fixed Events::drop_event() to have the previous signature without bool only_from_disk sql/sql_parse.cc: Fix call
* Many files:unknown2006-12-271-2/+1
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