corrupts a MERGE table
Post-pushbuild fix. The merge test failed on Windows.
The MoveFile() function returned the error code
ERROR_ACCESS_DENIED.
The fix is to use a different name for the file to be
deleted. This is the same trick as we use for the error
code ERROR_ALREADY_EXISTS.
Added ERROR_ACCESS_DENIED to the list of error codes that
require to change the name of the file to be deleted.
mysys/my_delete.c:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added ERROR_ACCESS_DENIED to the list of error codes that
require to change the name of the file to be deleted.
corrupts a MERGE table
Bug 26867 - LOCK TABLES + REPAIR + merge table result in
memory/cpu hogging
Bug 26377 - Deadlock with MERGE and FLUSH TABLE
Bug 25038 - Waiting TRUNCATE
Bug 25700 - merge base tables get corrupted by
optimize/analyze/repair table
Bug 30275 - Merge tables: flush tables or unlock tables
causes server to crash
Bug 19627 - temporary merge table locking
Bug 27660 - Falcon: merge table possible
Bug 30273 - merge tables: Can't lock file (errno: 155)
The problems were:
Bug 26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
1. A thread trying to lock a MERGE table performs busy waiting while
REPAIR TABLE or a similar table administration task is ongoing on
one or more of its MyISAM tables.
2. A thread trying to lock a MERGE table performs busy waiting until all
threads that did REPAIR TABLE or similar table administration tasks
on one or more of its MyISAM tables in LOCK TABLES segments do UNLOCK
TABLES. The difference against problem #1 is that the busy waiting
takes place *after* the administration task. It is terminated by
UNLOCK TABLES only.
3. Two FLUSH TABLES within a LOCK TABLES segment can invalidate the
lock. This does *not* require a MERGE table. The first FLUSH TABLES
can be replaced by any statement that requires other threads to
reopen the table. In 5.0 and 5.1 a single FLUSH TABLES can provoke
the problem.
Bug 26867 - LOCK TABLES + REPAIR + merge table result in
memory/cpu hogging
Trying DML on a MERGE table, which has a child locked and
repaired by another thread, made an infinite loop in the server.
Bug 26377 - Deadlock with MERGE and FLUSH TABLE
Locking a MERGE table and its children in parent-child order
and flushing the child deadlocked the server.
Bug 25038 - Waiting TRUNCATE
Truncating a MERGE child, while the MERGE table was in use,
let the truncate fail instead of waiting for the table to
become free.
Bug 25700 - merge base tables get corrupted by
optimize/analyze/repair table
Repairing a child of an open MERGE table corrupted the child.
It was necessary to FLUSH the child first.
Bug 30275 - Merge tables: flush tables or unlock tables
causes server to crash
Flushing and optimizing locked MERGE children crashed the server.
Bug 19627 - temporary merge table locking
Use of a temporary MERGE table with non-temporary children
could corrupt the children.
Temporary tables are never locked. So we do now prohibit
non-temporary chidlren of a temporary MERGE table.
Bug 27660 - Falcon: merge table possible
It was possible to create a MERGE table with non-MyISAM children.
Bug 30273 - merge tables: Can't lock file (errno: 155)
This was a Windows-only bug. Table administration statements
sometimes failed with "Can't lock file (errno: 155)".
These bugs are fixed by a new implementation of MERGE table open.
When opening a MERGE table in open_tables() we do now add the
child tables to the list of tables to be opened by open_tables()
(the "query_list"). The children are not opened in the handler at
this stage.
After opening the parent, open_tables() opens each child from the
now extended query_list. When the last child is opened, we remove
the children from the query_list again and attach the children to
the parent. This behaves similar to the old open. However it does
not open the MyISAM tables directly, but grabs them from the already
open children.
When closing a MERGE table in close_thread_table() we detach the
children only. Closing of the children is done implicitly because
they are in thd->open_tables.
For more detail see the comment at the top of ha_myisammrg.cc.
Changed from open_ltable() to open_and_lock_tables() in all places
that can be relevant for MERGE tables. The latter can handle tables
added to the list on the fly. When open_ltable() was used in a loop
over a list of tables, the list must be temporarily terminated
after every table for open_and_lock_tables().
table_list->required_type is set to FRMTYPE_TABLE to avoid open of
special tables. Handling of derived tables is suppressed.
These details are handled by the new function
open_n_lock_single_table(), which has nearly the same signature as
open_ltable() and can replace it in most cases.
In reopen_tables() some of the tables open by a thread can be
closed and reopened. When a MERGE child is affected, the parent
must be closed and reopened too. Closing of the parent is forced
before the first child is closed. Reopen happens in the order of
thd->open_tables. MERGE parents do not attach their children
automatically at open. This is done after all tables are reopened.
So all children are open when attaching them.
Special lock handling like mysql_lock_abort() or mysql_lock_remove()
needs to be suppressed for MERGE children or forwarded to the parent.
This depends on the situation. In loops over all open tables one
suppresses child lock handling. When a single table is touched,
forwarding is done.
Behavioral changes:
===================
This patch changes the behavior of temporary MERGE tables.
Temporary MERGE must have temporary children.
The old behavior was wrong. A temporary table is not locked. Hence
even non-temporary children were not locked. See
Bug 19627 - temporary merge table locking.
You cannot change the union list of a non-temporary MERGE table
when LOCK TABLES is in effect. The following does *not* work:
CREATE TABLE m1 ... ENGINE=MRG_MYISAM ...;
LOCK TABLES t1 WRITE, t2 WRITE, m1 WRITE;
ALTER TABLE m1 ... UNION=(t1,t2) ...;
However, you can do this with a temporary MERGE table.
You cannot create a MERGE table with CREATE ... SELECT, neither
as a temporary MERGE table, nor as a non-temporary MERGE table.
CREATE TABLE m1 ... ENGINE=MRG_MYISAM ... SELECT ...;
Gives error message: table is not BASE TABLE.
include/my_base.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN.
include/myisammrg.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added element 'children_attached' to MYRG_INFO.
Added declarations for myrg_parent_open(),
myrg_attach_children() and myrg_detach_children()
for the new MERGE table open approach.
mysql-test/extra/binlog_tests/blackhole.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Preliminarily added new error message with a comment.
mysql-test/r/create.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed test result.
mysql-test/r/delayed.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Moved test result from here to merge.result.
mysql-test/r/merge.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed/added test result.
mysql-test/r/myisam.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Moved test result for bug 8306 from here to merge.result.
mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed test result.
mysql-test/t/create.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed error number.
mysql-test/t/delayed.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Moved test from here to merge.test.
mysql-test/t/merge.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed test for new temporary MERGE table behavior.
Exchanged error numbers by symbolic codes.
Added tests. Included are tests for bugs
8306 (moved from myisam.test), 26379, 19627, 25038, 25700, 26377,
26867, 27660, 30275, and 30273.
Fixed changes resulting from disabled CREATE...SELECT.
Integrated tests moved from delayed.test and myisam.test to here.
mysql-test/t/myisam.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Moved test for bug 8306 from here to merge.test.
mysys/thr_lock.c:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added code to let the owner of a high priority lock (TL_WRITE_ONLY)
to bypass its own lock.
sql/ha_ndbcluster_binlog.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added 'thd' argument to init_tmp_table_share().
sql/handler.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added 'thd' argument to init_tmp_table_share().
sql/mysql_priv.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Removed declaration of check_merge_table_access(). It is now static
in sql_parse.cc.
Added declaration for fix_merge_after_open().
Renamed open_and_lock_tables() to open_and_lock_tables_derived()
with additional parameter 'derived'.
Added inline functions simple_open_n_lock_tables() and
open_and_lock_tables(), which call open_and_lock_tables_derived()
and add the argument for 'derived'.
Added new function open_n_lock_single_table(), which can be used
as an replacement for open_ltable() in most situations. Internally
it calls simple_open_n_lock_tables() so hat it is appropriate for
MERGE tables.
Added 'thd' argument to init_tmp_table_share().
sql/slave.cc:
ug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added comment.
sql/sql_base.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Defined new functions add_merge_table_list(),
attach_merge_children(), detach_merge_children(), and
fix_merge_after_open() for the new MERGE table open approach.
Added calls of the new functions to
close_handle_and_leave_table_as_lock(), close_thread_tables(),
close_thread_table(), unlink_open_table(), reopen_name_locked_table(),
reopen_table(), drop_locked_tables(), close_temporary_table(),
and open_tables() respectively.
Prevented special lock handling of merge children (like
mysql_lock_remove, mysql_lock_merge or mysql_lock_abort)
at many places. Some of these calls are forwarded to the
parent table instead.
Added code to set thd->some_tables_deleted for every thread that has
a table open that we are flushing.
Added code for MERGE tables to unlink_open_table().
Added MERGE children to the list of unusable tables in open_table().
Added MERGE table handling to reopen_table().
Added lock handling and closing of a parent before the children
in close_data_files_and_morph_locks().
Added code for re-attaching children in reopen_tables().
Added MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN to the locking flags and
error reporting after mysql_lock_tables() in reopen_tables().
Added lock handling and closing of a parent before the children
in close_old_data_files().
Added lock handling and detaching in drop_locked_tables().
Added code for removing the children list from the statement list
to prepare for a repetition in open_tables().
Added new function open_n_lock_single_table(), which can be used
as an replacement for open_ltable() in most situations. Internally
it calls simple_open_n_lock_tables() so hat it is appropriate for
MERGE tables.
Disabled use of open_ltable() for MERGE tables.
Removed function simple_open_n_lock_tables(). It is now inline
declared in mysql_priv.h.
Renamed open_and_lock_tables() to open_and_lock_tables_derived()
with additional parameter 'derived'. open_and_lock_tables() is now
inline declared in mysql_priv.h.
Added a check for end-of-list in two loops in lock_tables().
Added 'thd' argument to init_tmp_table_share().
sql/sql_insert.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Changed from open_ltable() to open_n_lock_single_table() in
handle_delayed_insert().
Reestablished LEX settings after lex initialization.
Added 'thd' argument to init_tmp_table_share().
sql/sql_parse.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Made check_merge_table_access() a static function.
Disabled use of CREATE...SELECT for MERGE tables.
sql/sql_partition.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Fixed comment typo.
sql/sql_select.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added 'thd' argument to init_tmp_table_share().
sql/sql_table.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Optimized use of mysql_ha_flush() in mysql_rm_table_part2().
Disabled the use of MERGE tables with prepare_for_restore() and
prepare_for_repair().
Changed from open_ltable() to open_n_lock_single_table() in
mysql_alter_table() and mysql_checksum_table().
Disabled change of child list under LOCK TABLES.
Initialized table_list->table in mysql_recreate_table().
sql/sql_trigger.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added code for allowing CREATE TRIGGER under LOCK TABLE, to be able
to test it with MERGE tables.
sql/table.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added 'thd' argument to init_tmp_table_share().
Setting table_map_id from query_id in init_tmp_table_share().
Added member function TABLE::is_children_attached().
sql/table.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added access method get_table_def_version() to TABLE_SHARE.
Added elements for MERGE tables to TABLE and TABLE_LIST.
storage/myisam/ha_myisam.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added an unrelated comment to the function comment of table2myisam().
storage/myisam/ha_myisam.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added new member function MI_INFO::file_ptr().
storage/myisammrg/ha_myisammrg.cc:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added callback functions to support parent open and children attach
of MERGE tables.
Changed ha_myisammrg::open() to initialize storage engine structures
and create a list of child tables only. Child tables are not opened.
Added ha_myisammrg::attach_children(), which does now the main part
of MERGE open.
Added ha_myisammrg::detach_children().
Added calls to ::attach_children() and ::detach_children() to
::extra() on HA_EXTRA_ATTACH_CHILDREN and HA_EXTRA_DETACH_CHILDREN
respectively.
Added a check for matching TEMPORARY type for children against
parent.
Added a check for table def version.
Added support for thd->open_options to attach_children().
Changed child path name generation for temporary tables so that
it does nothing special for temporary tables.
storage/myisammrg/ha_myisammrg.h:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added elements to class ha_myisammrg to support the new
open approach.
Changed empty destructor definition to a declaration.
Implemented in ha_myisammrg.cc.
Added declaration for methods attach_children() and
detach_children().
Added definition for method table_ptr() for use with
callback functions.
storage/myisammrg/myrg_close.c:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Added a check to avoid closing of MyISAM tables when the
child tables are not attached.
Added freeing of rec_per_key_part when the child tables
are not attached.
storage/myisammrg/myrg_extra.c:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Some ::extra() functions and ::reset() can be called when
children are detached.
storage/myisammrg/myrg_open.c:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
corrupts a MERGE table
Kept old myrg_open() for MERGE use independent from MySQL.
Removed an always true condition in myrg_open().
Set children_attached for independent MERGE use in myrg_open().
Added myrg_parent_open(), myrg_attach_children(), and
myrg_detach_children() for the new MERGE table open approach.
mysql-test/r/merge-big.result:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
New test result
mysql-test/t/merge-big.test:
Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table
New test case
into trift2.:/MySQL/M51/push-5.1
include/my_sys.h:
Auto merged
sql/CMakeLists.txt:
Manual merge: Keep the workaround for the cmake 2.4.6 bug, enclose it in "if".
into mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.1-engines
mysql-test/r/symlink.result:
Auto merged
mysql-test/t/symlink.test:
Auto merged
mysys/my_symlink2.c:
Auto merged
into mysql.com:/home/svoj/devel/mysql/BUG32111/mysql-5.0-engines
mysql-test/r/symlink.result:
Auto merged
mysql-test/t/symlink.test:
Auto merged
mysys/my_symlink2.c:
Auto merged
into ramayana.hindu.god:/home/tsmith/m/bk/build/51-fix
include/my_sys.h:
Auto merged
libmysql/CMakeLists.txt:
Auto merged
mysys/default.c:
Manual merge
into ramayana.hindu.god:/home/tsmith/m/bk/build/b20748/51
libmysql/Makefile.shared:
Auto merged
mysys/CMakeLists.txt:
Auto merged
mysys/Makefile.am:
Auto merged
include/my_sys.h:
Manual merge
mysys/default.c:
Manual merge:
- We don't support OS/2 in MySQL 5.1
- On Unix, we search /etc/mysql/ in MySQL 5.1
A user could not override system-wide settings in their ~/.my.cnf,
because the DEFAULT_SYSCONFDIR was being searched last. Also, in
some configurations (especially when the --sysconfdir compile-time
option is set to /etc or /etc/mysql), the system-wide my.cnf file
was read multiple times, causing confusion and potential problems.
Rearrange default directories to conform to the manual and logic.
Move --sysconfdir=<path> (DEFAULT_SYSCONFDIR) from the last default
directory to the middle of the list. $HOME/.my.cnf should be last,
so the user is able to override the system-wide settings.
Change init_default_directories() to remove duplicates from the
list.
include/my_sys.h:
Add array_append_string_unique(), from mf_arr_appstr.c
libmysql/Makefile.shared:
Add new mf_arr_appstr.lo object
mysys/CMakeLists.txt:
Add new mf_arr_appstr.c source.
mysys/Makefile.am:
Add new mf_arr_appstr.c source.
mysys/default.c:
Change order in which defaults files are added to default_directories,
in order to conform to the manual (and to common sense). This fixes
a particularly bad problem on Unix, where ~/.my.cnf was read before
/usr/local/etc/my.cnf.
Also, don't add duplicate entries; move the existing entry to the
end of the list instead.
Here is a comparison of the order of defaults files, BEFORE and AFTER
this patch.
On Windows:
BEFORE: C:\, GetWindowsDirectory(), GetSystemWindowsDirectory(),
$MYSQL_HOME, defaults-extra-file, INSTALLDIR
AFTER: GetSystemWindowsDirectory(), GetWindowsDirectory(), C:\,
INSTALLDIR, $MYSQL_HOME, defaults-extra-file
GetSystemWindowsDirectory() is moved before GetWindowsDirectory() because
the former is shared by all Terminal Services users, while the latter is
private for each user.
On Netware (no change):
BEFORE: sys:/etc/, $MYSQL_HOME, defaults-extra-file
AFTER: sys:/etc, $MYSQL_HOME, defaults-extra-file
On OS/2:
BEFORE: $ETC, /etc, $MYSQL_HOME, defaults-extra-file
AFTER: /etc, $ETC, $MYSQL_HOME, defaults-extra-file
On everything else (general Unix):
BEFORE: /etc, $MYSQL_HOME, defaults-extra-file, ~/, --sysconfdir
AFTER: /etc/, --sysconfdir, $MYSQL_HOME, defaults-extra-file, ~/
The BEFORE code added --sysconfdir on all systems, but only the
Unix build system actually defined a value for it.
mysys/mf_arr_appstr.c:
BitKeeper file /home/tsmith/m/bk/build/50-b20748/mysys/mf_arr_appstr.c
RENAME TABLE against a table with DATA/INDEX DIRECTORY overwrites
the file to which the symlink points.
This is security issue, because it is possible to create a table with
some name in some non-system database and set DATA/INDEX DIRECTORY
to mysql system database. Renaming this table to one of mysql system
tables (e.g. user, host) would overwrite the system table.
Return an error when the file to which the symlink points exist.
mysql-test/r/symlink.result:
A test case for BUG#32111.
mysql-test/t/symlink.test:
A test case for BUG#32111.
mysys/my_symlink2.c:
Return an error when the file to which the symlink points exist.
into mysql.com:/home/svoj/devel/mysql/BUG31159/mysql-5.0-engines
include/my_sys.h:
Auto merged
mysql-test/r/ctype_ucs.result:
Auto merged
mysql-test/t/ctype_ucs.test:
Auto merged
mysys/charset.c:
Manual merge.
sql/item_func.cc:
Manual merge.
ucs2 doesn't provide required by fulltext ctype array. Crash
happens because fulltext attempts to use unitialized ctype
array.
Fixed by converting ucs2 fields to compatible utf8 analogue.
include/my_sys.h:
Added a function to find compatible character set with ctype array
available. Currently used by fulltext search to find compatible
substitute for ucs2 collations.
mysql-test/r/ctype_ucs.result:
A test case for BUG#31159.
mysql-test/t/ctype_ucs.test:
A test case for BUG#31159.
mysys/charset.c:
Added a function to find compatible character set with ctype array
available. Currently used by fulltext search to find compatible
substitute for ucs2 collations.
sql/item_func.cc:
Convert ucs2 fields to utf8. Fulltext requires ctype array, but
ucs2 doesn't provide it.
into anubis.xiphis.org:/usr/home/antony/work/mysql-5.1-engines.merge
configure.in:
Auto merged
mysql-test/r/heap_btree.result:
Auto merged
mysql-test/r/log_tables.result:
Auto merged
mysql-test/r/partition.result:
Auto merged
mysql-test/r/system_mysql_db.result:
Auto merged
mysql-test/t/heap_btree.test:
Auto merged
mysql-test/t/log_tables.test:
Auto merged
mysql-test/t/partition.test:
Auto merged
mysys/my_getopt.c:
Auto merged
scripts/mysql_system_tables.sql:
Auto merged
sql/sql_base.cc:
Auto merged
into lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-rt-merge
client/mysqlcheck.c:
Auto merged
client/mysqltest.c:
Auto merged
libmysql/libmysql.c:
Auto merged
mysql-test/include/mix1.inc:
Auto merged
mysql-test/r/innodb_mysql.result:
Auto merged
mysql-test/r/udf.result:
Auto merged
mysql-test/t/udf.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_lex.h:
Auto merged
sql/sql_select.cc:
Auto merged
tests/mysql_client_test.c:
Auto merged
into lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.0-rt-merge
mysql-test/r/udf.result:
Auto merged
mysql-test/t/udf.test:
Auto merged
sql/item.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/set_var.cc:
Auto merged
sql/udf_example.c:
Auto merged
sql/udf_example.def:
Auto merged
into ramayana.hindu.god:/home/tsmith/m/bk/maint/51
configure.in:
Auto merged
mysql-test/Makefile.am:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
scripts/Makefile.am:
Auto merged
scripts/mysql_system_tables_data.sql:
Auto merged
scripts/mysqld_safe.sh:
Auto merged
sql/sql_select.cc:
Auto merged
storage/innobase/handler/ha_innodb.cc:
Auto merged
into moksha.local:/Users/davi/mysql/push/mysql-5.1-runtime
include/config-win.h:
Auto merged
include/my_pthread.h:
Auto merged
mysys/thr_mutex.c:
Auto merged
into bodhi.(none):/opt/local/work/mysql-5.0-runtime
mysql-test/r/sp.result:
Auto merged
mysql-test/t/sp.test:
Auto merged
sql/sql_parse.cc:
Auto merged
"Disabled plugin is provoking Valgrind error"
If there are any auto-alloced string plug-in options, memory is
allocated during the call for handle_options(). We must free this
memory if we are not installing the plug-in.
include/my_getopt.h:
bug31382
new function: my_cleanup_options()
mysys/my_getopt.c:
bug31382
new function: my_cleanup_options(), fini_one_value()
alter init_variables() to take an extra option.
forward declare init_one_value() and fini_one_value()
sql/sql_plugin.cc:
bug31382
after calling handle_options(), make sure to call my_cleanup_options()
if we are not installing the plug-in.
into polly.(none):/home/kaa/src/maint/bug5731/my51-bug5731
mysql-test/r/variables.result:
Auto merged
mysys/my_getopt.c:
Auto merged
sql/set_var.cc:
Auto merged
mysql-test/t/variables.test:
Manual merge.
This is for bug #29446 "Specifying a myisam_sort_buffer > 4GB on 64 bit machines not possible". Support for myisam_sort_buffer_size > 4 GB on 64-bit Windows will be looked at later in 5.2.
mysql-test/r/variables.result:
Fixed the test.
mysql-test/t/variables.test:
Fixed the test.
mysys/my_getopt.c:
Print a warning to the error log if a user sets an option to a value greater than the option's maximum value.
sql/set_var.cc:
Issue an SQL warning if a user assignes a value greater than the variable's maximum value.
It's not possible to use WaitForSingleObject to wait
on a CRITICAL_SECTION, instead use the TryEnterCriticalSection function.
- if "mutex" was already taken => return EBUSY
- if "mutex" was aquired => return 0
include/config-win.h:
Make windows.h define TryEnterCriticalSection
mysys/my_winthread.c:
Use the TryEnterCriticalSection function to implement pthread_mutex_trylock
Prevent recursive behaviour by looking at the RecursionCount variable
in the CRITICAL_SECTION struct and return EBUSY from function if
the mutex was already locked once.
- "on" -> "restore" to avoid warning in MSVC when compiling with debug
mysys/my_init.c:
Fix spelling error that cause MSVC to throw a warning
when compiling with debug.
Use "restore" instaed of "on" to turn runtime checks back on
Adding support for correct handling of pthread_mutex_trylock() on Win32
systems as well as when using the safe mutexes.
include/my_pthread.h:
Adding win_pthread_mutex_trylock() function as wrapper function for
Windows implementation of pthread_mutex_trylock().
Adding flag to safe_mutex_lock() that is shall not abort if the mutex
is already locked and instead return EBUSY since this is the POSIX
behaviour.
mysys/my_winthread.c:
Added Win32 wrappper function to handle pthread_mutex_trylock().
mysys/thr_mutex.c:
Added parameter 'try_lock' to safe_mutex_lock() to allow it to do double-
duty as a pthread_mutex_trylock() in addition to working as
pthread_mutex_lock().
The code needs to return EBUSY instead of throwing an error in the event
that the mutex is re-locked (we do not have recursive mutexes), but it
also requires some special handling to avoid race conditions when
calling the real pthread_mutex_{lock,trylock}().
This is required to allow key_buffer_size > 4 GB (bug #5731).
include/my_sys.h:
Backport of my_malloc() changes from 5.1 to make it 64-bit safe on Unix platforms.
mysys/my_largepage.c:
Backport of my_malloc() changes from 5.1 to make it 64-bit safe on Unix platforms.
mysys/my_malloc.c:
Backport of my_malloc() changes from 5.1 to make it 64-bit safe on Unix platforms.
mysys/safemalloc.c:
Backport of my_malloc() changes from 5.1 to make it 64-bit safe on Unix platforms.
into a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-5.1-marvel
client/mysqldump.c:
Auto merged
libmysql/libmysql.c:
Auto merged
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/r/status.result:
Auto merged
sql/event_db_repository.cc:
Auto merged
sql/event_queue.cc:
Auto merged
sql/field.cc:
Auto merged
sql/ha_partition.cc:
Auto merged
sql/ha_partition.h:
Auto merged
sql/handler.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_cmpfunc.h:
Auto merged
sql/item_func.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/log.cc:
Auto merged
sql/log_event.h:
Auto merged
sql/log_event_old.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/opt_range.cc:
Auto merged
sql/sp.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_handler.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_plugin.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/table.h:
Auto merged
tests/mysql_client_test.c:
Auto merged
mysql-test/t/status.test:
Manual resolve with 5.1.
sql/log_event.cc:
Manual resolve with 5.1.
sql/sql_yacc.yy:
Manual resolve with 5.1.
When locking a "fast" mutex a static variable cpu_count
was used as a flag to initialize itself on the first usage
by calling sysconf() and setting non-zero value.
This is not thread and optimization safe on some
platforms. That's why the global initialization needs
to be done once in a designated function.
This will also speed up the usage (by a small bit)
because it won't have to check if it's initialized on
every call.
Fixed by moving the fast mutexes initialization out of
my_pthread_fastmutex_lock() to fastmutex_global_init()
and call it from my_init()
include/my_pthread.h:
Bug #28284: move the fast mutexes initialization out of
my_pthread_fastmutex_lock() to fastmutex_global_init()
and call it from my_init()
mysys/my_init.c:
Bug #28284: move the fast mutexes initialization out of
my_pthread_fastmutex_lock() to fastmutex_global_init()
and call it from my_init()
mysys/thr_mutex.c:
Bug #28284: move the fast mutexes initialization out of
my_pthread_fastmutex_lock() to fastmutex_global_init()
and call it from my_init()
client/mysqldump.c:
Auto merged
sql/event_db_repository.cc:
Auto merged
sql/event_queue.cc:
Auto merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/log_event.h:
Auto merged
sql/sp.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_handler.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_plugin.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/table.h:
Auto merged
sql/sql_yacc.yy:
Manual merge.
into hynda.mysql.fi:/home/my/mysql-5.1-marvel
client/mysqldump.c:
Auto merged
sql/event_db_repository.cc:
Auto merged
sql/event_queue.cc:
Auto merged
sql/field.cc:
Auto merged
sql/item.cc:
Auto merged
sql/item_subselect.cc:
Auto merged
sql/log_event.h:
Auto merged
sql/sp.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_db.cc:
Auto merged
sql/sql_handler.cc:
Auto merged
sql/sql_lex.cc:
Auto merged
sql/sql_plugin.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_show.cc:
Auto merged
sql/table.h:
Auto merged
sql/sql_yacc.yy:
Manual merge with 5.1 main tree.
into trift2.:/MySQL/M51/push-5.1
Includes manual merges.
mysql-test/mysql-test-run.pl:
Auto merged
mysql-test/suite/ndb/r/ndb_dd_basic.result:
Auto merged
sql/field.cc:
Auto merged
sql/handler.cc:
Auto merged
sql/item_func.cc:
Auto merged
sql/log.cc:
Auto merged
sql/log_event_old.cc:
Auto merged
sql/mysql_priv.h:
Auto merged
sql/mysqld.cc:
Auto merged
sql/sp_head.cc:
Auto merged
sql/sql_class.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_handler.cc:
Auto merged
sql/sql_insert.cc:
Auto merged
sql/sql_select.cc:
Auto merged
sql/sql_string.cc:
Auto merged
sql/sql_table.cc:
Auto merged
sql/unireg.h:
Auto merged
mysql-test/r/status.result:
Manual merge of two incompatible fixes to test "status".
mysql-test/t/status.test:
Manual merge of two incompatible fixes to test "status".
sql/log_event.cc:
Manual merge.
sql/log_event.h:
Manual merge.
