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446 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Konstantin Osipov
|
b05303c132 |
Backport of:
------------------------------------------------------------
revno: 2630.4.18
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w2
timestamp: Tue 2008-06-03 21:07:58 +0400
message:
WL#3726 "DDL locking for all metadata objects".
After review fixes in progress.
Now during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all requests
for this object in the context. This makes API a bit more clear
and makes adjust_mdl_locks_upgradability() much nicer.
sql/lock.cc:
lock_table_names():
Set TABLE_LIST::mdl_lock_data when allocating new metadata
lock request object for table list element.
sql/mdl.cc:
Now during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all
requests for this object in the context. Adjusted upgrade/
downgrade functions accordingly.
We also got rid of mdl_release_exclusive_locks() and
now release locks individually. To simplify this process
mdl_release_all_locks_for_name() was introduced.
sql/mdl.h:
Now during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all
requests for this object in the context. Adjusted upgrade/
downgrade functions accordingly.
We also got rid of mdl_release_exclusive_locks() and
now release locks individually. To simplify this process
mdl_release_all_locks_for_name() was introduced.
sql/sql_base.cc:
Now during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all
requests for this object in the context.
We also got rid of mdl_release_exclusive_locks() and
now release locks individually.
sql/sql_parse.cc:
adjust_mdl_locks_upgradability() is much simplier now due to the
fact that now during upgrading/downgrading metadata locks we
deal with individual metadata lock requests rather than with
all requests for this object in the context.
sql/sql_table.cc:
Now during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all
requests for this object in the context. Adjusted upgrade/
downgrade functions accordingly.
We also got rid of mdl_release_exclusive_locks() and
now release locks individually. To simplify this process
mdl_release_all_locks_for_name() was introduced.
sql/sql_trigger.cc:
ow during upgrading/downgrading metadata locks we deal with
individual metadata lock requests rather than with all
requests for this object in the context.
|
||
|
Konstantin Osipov
|
e23046d1bc |
Backport of:
------------------------------------------------------------ revno: 2630.4.17 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w2 timestamp: Thu 2008-05-29 16:52:56 +0400 message: WL#3726 "DDL locking for all metadata objects". After review fixes in progress. "The great correction of names". Renamed MDL_LOCK and MDL_LOCK_DATA classes to make usage of these names in metadata locking subsystem consistent with other parts of server (i.e. thr_lock.cc). Now we MDL_LOCK_DATA corresponds to request for a lock and MDL_LOCK to the lock itself. Adjusted code in MDL subsystem and other places using these classes accordingly. Did similar thing for GLOBAL_MDL_LOCK_DATA class and also changed name of its members to correspond to names of MDL_LOCK_DATA members. Finally got rid of usage of one letter variables in MDL code since it makes code harder to search in (according to reviewer). |
||
|
Konstantin Osipov
|
aeebede195 |
Backport of:
------------------------------------------------------------ revno: 2630.4.11 committer: Dmitry Lenev <dlenev@mysql.com> branch nick: mysql-6.0-3726-w timestamp: Tue 2008-05-27 21:31:53 +0400 message: WL#3726 "DDL locking for all metadata objects". After review fixes in progress. Changed mysql_lock_tables() to be no longer responsible for reopening table if waiting for the lock on it was aborted. This allows to get rid of several annoying functions. sql/ha_ndbcluster_binlog.cc: lock_tables() now also accepts set of options to be passed to mysql_lock_tables(). sql/lock.cc: Changed mysql_lock_tables() always requests caller to reopen table instead doing this on its own when waiting for lock was aborted. This allows us to get rid of several functions which were used in rare cases and significantly complicated our life. sql/log_event_old.cc: lock_tables() now also accepts set of options to be passed to mysql_lock_tables(). sql/mysql_priv.h: Now mysql_lock_tables() always requests caller to reopen table instead doing this on its own when waiting for lock was aborted. So we no longer need wait_for_tables() and table_is_used() functions and MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN flag. open_and_lock_table_derived() and lock_tables() now accept options to be passed to open_tables() and mysql_lock_tables() calls. sql/sql_base.cc: Since now mysql_lock_tables() always requests caller to reopen table instead doing this on its own when waiting for lock was aborted we no longer need wait_for_tables(), table_is_used() and close_old_data_files() functions. open_and_lock_table_derived() and lock_tables() now accept options to be passed to open_tables() and mysql_lock_tables() calls. This was needed in order to get rid of redundant code in open_system_tables_for_read() function. sql/sql_handler.cc: mysql_lock_tables() is now always requests reopen if waiting for lock is aborted. MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN flag was removed. sql/sql_insert.cc: handle_delayed_insert(): Since mysql_lock_tables() is no longer responsible for reopening tables when waiting for lock was aborted we have to handle such situation outside of this function. To simplify this extracted code opening table for delayed insert thread to separate method of Delayed_insert class. sql/sql_update.cc: lock_tables() now also accepts set of options to be passed to mysql_lock_tables(). |
||
|
Konstantin Osipov
|
eff3780dd8 |
Initial import of WL#3726 "DDL locking for all metadata objects".
Backport of:
------------------------------------------------------------
revno: 2630.4.1
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Fri 2008-05-23 17:54:03 +0400
message:
WL#3726 "DDL locking for all metadata objects".
After review fixes in progress.
------------------------------------------------------------
This is the first patch in series. It transforms the metadata
locking subsystem to use a dedicated module (mdl.h,cc). No
significant changes in the locking protocol.
The import passes the test suite with the exception of
deprecated/removed 6.0 features, and MERGE tables. The latter
are subject to a fix by WL#4144.
Unfortunately, the original changeset comments got lost in a merge,
thus this import has its own (largely insufficient) comments.
This patch fixes Bug#25144 "replication / binlog with view breaks".
Warning: this patch introduces an incompatible change:
Under LOCK TABLES, it's no longer possible to FLUSH a table that
was not locked for WRITE.
Under LOCK TABLES, it's no longer possible to DROP a table or
VIEW that was not locked for WRITE.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.2
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 14:03:45 +0400
message:
WL#3726 "DDL locking for all metadata objects".
After review fixes in progress.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.3
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 14:08:51 +0400
message:
WL#3726 "DDL locking for all metadata objects"
Fixed failing Windows builds by adding mdl.cc to the lists
of files needed to build server/libmysqld on Windows.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.4
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sat 2008-05-24 21:57:58 +0400
message:
WL#3726 "DDL locking for all metadata objects".
Fix for assert failures in kill.test which occured when one
tried to kill ALTER TABLE statement on merge table while it
was waiting in wait_while_table_is_used() for other connections
to close this table.
These assert failures stemmed from the fact that cleanup code
in this case assumed that temporary table representing new
version of table was open with adding to THD::temporary_tables
list while code which were opening this temporary table wasn't
always fulfilling this.
This patch changes code that opens new version of table to
always do this linking in. It also streamlines cleanup process
for cases when error occurs while we have new version of table
open.
******
WL#3726 "DDL locking for all metadata objects"
Add libmysqld/mdl.cc to .bzrignore.
******
Backport of:
------------------------------------------------------------
revno: 2630.4.6
committer: Dmitry Lenev <dlenev@mysql.com>
branch nick: mysql-6.0-3726-w
timestamp: Sun 2008-05-25 00:33:22 +0400
message:
WL#3726 "DDL locking for all metadata objects".
Addition to the fix of assert failures in kill.test caused by
changes for this worklog.
Make sure we close the new table only once.
.bzrignore:
Add libmysqld/mdl.cc
libmysqld/CMakeLists.txt:
Added mdl.cc to the list of files needed for building of libmysqld.
libmysqld/Makefile.am:
Added files implementing new meta-data locking subsystem to the server.
mysql-test/include/handler.inc:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/create.result:
Adjusted test case after change in implementation of CREATE TABLE
... SELECT. We no longer have special check in open_table() which
catches the case when we select from the table created. Instead we
rely on unique_table() call which happens after opening and
locking all tables.
mysql-test/r/flush.result:
FLUSH TABLES WITH READ LOCK can no longer happen under LOCK
TABLES. Updated test accordingly.
mysql-test/r/flush_table.result:
Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables
locked for read. Updated test accordingly.
mysql-test/r/handler_innodb.result:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/handler_myisam.result:
Use separate connection for waiting while threads performing DDL
operations conflicting with open HANDLER tables reach blocked
state. This is required because now we check and close tables open
by HANDLER statements in this connection conflicting with DDL in
another each time open_tables() is called and thus select from I_S
which is used for waiting will unblock DDL operations if issued
from connection with open HANDLERs.
mysql-test/r/information_schema.result:
Additional test for WL#3726 "DDL locking for all metadata
objects". Check that we use high-priority metadata lock requests
when filling I_S tables.
Rearrange tests to match 6.0 better (fewer merge conflicts).
mysql-test/r/kill.result:
Added tests checking that DDL and DML statements waiting for
metadata locks can be interrupted by KILL command.
mysql-test/r/lock.result:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation write locks on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/r/partition_column_prune.result:
Update results (same results in 6.0), WL#3726
mysql-test/r/partition_pruning.result:
Update results (same results in 6.0), WL#3726
mysql-test/r/ps_ddl.result:
We no longer invalidate prepared CREATE TABLE ... SELECT statement
if target table changes. This is OK since it is not strictly
necessary.
The first change is wrong, is caused by FLUSH TABLE
now flushing all unused tables. This is a regression that
Dmitri fixed in 6.0 in a follow up patch.
mysql-test/r/sp.result:
Under LOCK TABLES we no longer allow accessing views which were
not explicitly locked. To access view we need to obtain metadata
lock on it and doing this under LOCK TABLES may lead to deadlocks.
mysql-test/r/view.result:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation even "write locks" on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock
mysql-test/r/view_grant.result:
ALTER VIEW implementation was changed to open a view only after
checking that user which does alter has appropriate privileges on
it. This means that in case when user's privileges are
insufficient for this we won't check that new view definer is the
same as original one or user performing alter has SUPER privilege.
Adjusted test case accordingly.
mysql-test/r/view_multi.result:
Added test case for bug#25144 "replication / binlog with view
breaks".
mysql-test/suite/rpl/t/disabled.def:
Disable test for deprecated features (they don't work with new MDL).
mysql-test/t/create.test:
Adjusted test case after change in implementation of CREATE TABLE
... SELECT. We no longer have special check in open_table() which
catches the case when we select from the table created. Instead we
rely on unique_table() call which happens after opening and
locking all tables.
mysql-test/t/disabled.def:
Disable merge.test, subject of WL#4144
mysql-test/t/flush.test:
FLUSH TABLES WITH READ LOCK can no longer happen under LOCK
TABLES. Updated test accordingly.
mysql-test/t/flush_table.test:
Under LOCK TABLES we no longer allow to do FLUSH TABLES for tables
locked for read. Updated test accordingly.
mysql-test/t/information_schema.test:
Additional test for WL#3726 "DDL locking for all metadata
objects". Check that we use high-priority metadata lock requests
when filling I_S tables.
Rearrange the results for easier merges with 6.0.
mysql-test/t/kill.test:
Added tests checking that DDL and DML statements waiting for
metadata locks can be interrupted by KILL command.
mysql-test/t/lock.test:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation write locks on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/t/lock_multi.test:
Adjusted test case to the changes of status in various places
caused by change in implementation FLUSH TABLES WITH READ LOCK,
which is now takes global metadata lock before flushing tables and
therefore waits on at these places.
mysql-test/t/ps_ddl.test:
We no longer invalidate prepared CREATE TABLE ... SELECT statement
if target table changes. This is OK since it is not strictly
necessary.
The first change is wrong, is caused by FLUSH TABLE
now flushing all unused tables. This is a regression that
Dmitri fixed in 6.0 in a follow up patch.
mysql-test/t/sp.test:
Under LOCK TABLES we no longer allow accessing views which were
not explicitly locked. To access view we need to obtain metadata
lock on it and doing this under LOCK TABLES may lead to deadlocks.
mysql-test/t/trigger_notembedded.test:
Adjusted test case to the changes of status in various places
caused by change in implementation FLUSH TABLES WITH READ LOCK,
which is now takes global metadata lock before flushing tables and
therefore waits on at these places.
mysql-test/t/view.test:
One no longer is allowed to do DROP VIEW under LOCK TABLES even if
this view is locked by LOCK TABLES. The problem is that in such
situation even "write locks" on view are not mutually exclusive so
upgrading metadata lock which is required for dropping of view
will lead to deadlock.
mysql-test/t/view_grant.test:
ALTER VIEW implementation was changed to open a view only after
checking that user which does alter has appropriate privileges on
it. This means that in case when user's privileges are
insufficient for this we won't check that new view definer is the
same as original one or user performing alter has SUPER privilege.
Adjusted test case accordingly.
mysql-test/t/view_multi.test:
Added test case for bug#25144 "replication / binlog with view
breaks".
sql/CMakeLists.txt:
Added mdl.cc to the list of files needed for building of server.
sql/Makefile.am:
Added files implementing new meta-data locking subsystem to the
server.
sql/event_db_repository.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when TABLE_LIST objects is also allocated
there or on stack.
sql/ha_ndbcluster.cc:
Adjusted code to work nicely with new metadata locking subsystem.
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/ha_ndbcluster_binlog.cc:
Adjusted code to work with new metadata locking subsystem.
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/handler.cc:
update_frm_version():
Directly update TABLE_SHARE::mysql_version member instead of
going through all TABLE instances for this table (old code was a
legacy from pre-table-definition-cache days).
sql/lock.cc:
Use new metadata locking subsystem. Threw away most of functions
related to name locking as now one is supposed to use metadata
locking API instead. In lock_global_read_lock() and
unlock_global_read_lock() in order to avoid problems with global
read lock sneaking in at the moment when we perform FLUSH TABLES
or ALTER TABLE under LOCK TABLES and when tables being reopened
are protected only by metadata locks we also have to take global
shared meta data lock.
sql/log_event.cc:
Adjusted code to work with new metadata locking subsystem. For
tables open by slave thread for applying RBR events allocate
memory for lock request object in the same chunk of memory as
TABLE_LIST objects for them. In order to ensure that we keep these
objects around until tables are open always close tables before
calling Relay_log_info::clear_tables_to_lock(). Use new auxiliary
Relay_log_info::slave_close_thread_tables() method to enforce
this.
sql/log_event_old.cc:
Adjusted code to work with new metadata locking subsystem. Since
for tables open by slave thread for applying RBR events memory for
lock request object is allocated in the same chunk of memory as
TABLE_LIST objects for them we have to ensure that we keep these
objects around until tables are open. To ensure this we always
close tables before calling
Relay_log_info::clear_tables_to_lock(). To enfore this we use
new auxiliary Relay_log_info::slave_close_thread_tables()
method.
sql/mdl.cc:
Implemented new metadata locking subsystem and API described in
WL3726 "DDL locking for all metadata objects".
sql/mdl.h:
Implemented new metadata locking subsystem and API described in
WL3726 "DDL locking for all metadata objects".
sql/mysql_priv.h:
- close_thread_tables()/close_tables_for_reopen() now has one more
argument which indicates that metadata locks should be released
but not removed from the context in order to be used later in
mdl_wait_for_locks() and tdc_wait_for_old_version().
- close_cached_table() routine is no longer public.
- Thread waiting in wait_while_table_is_used() can be now killed
so this function returns boolean to make caller aware of such
situation.
- We no longer have table cache as separate entity instead used
and unused TABLE instances are linked to TABLE_SHARE objects in
table definition cache.
- Now third argument of open_table() is also used for requesting
table repair or auto-discovery of table's new definition. So its
type was changed from bool to enum.
- Added tdc_open_view() function for opening view by getting its
definition from disk (and table cache in future).
- reopen_name_locked_table() no longer needs "link_in" argument as
now we have exclusive metadata locks instead of dummy TABLE
instances when this function is called.
- find_locked_table() now takes head of list of TABLE instances
instead of always scanning through THD::open_tables list. Also
added find_write_locked_table() auxiliary.
- reopen_tables(), close_cached_tables() no longer have
mark_share_as_old and wait_for_placeholder arguments. Instead of
relying on this parameters and related behavior FLUSH TABLES
WITH READ LOCK now takes global shared metadata lock.
- We no longer need drop_locked_tables() and
abort_locked_tables().
- mysql_ha_rm_tables() now always assume that LOCK_open is not
acquired by caller.
- Added notify_thread_having_shared_lock() callback invoked by
metadata locking subsystem when acquiring an exclusive lock, for
each thread that has a conflicting shared metadata lock.
- Introduced expel_table_from_cache() as replacement for
remove_table_from_cache() (the main difference is that this new
function assumes that caller follows metadata locking protocol
and never waits).
- Threw away most of functions related to name locking. One should
use new metadata locking subsystem and API instead.
sql/mysqld.cc:
Got rid of call initializing/deinitializing table cache since now
it is embedded into table definition cache. Added calls for
initializing/ deinitializing metadata locking subsystem.
sql/rpl_rli.cc:
Introduced auxiliary Relay_log_info::slave_close_thread_tables()
method which is used for enforcing that we always close tables
open for RBR before deallocating TABLE_LIST elements and MDL_LOCK
objects for them.
sql/rpl_rli.h:
Introduced auxiliary Relay_log_info::slave_close_thread_tables()
method which is used for enforcing that we always close tables
open for RBR before deallocating TABLE_LIST elements and MDL_LOCK
objects for them.
sql/set_var.cc:
close_cached_tables() no longer has wait_for_placeholder argument.
Instead of relying on this parameter and related behavior FLUSH
TABLES WITH READ LOCK now takes global shared metadata lock.
sql/sp_head.cc:
For tables added to the statement's table list by prelocking
algorithm we allocate these objects either on the same memory as
corresponding table list elements or on THD::locked_tables_root
(if we are building table list for LOCK TABLES).
sql/sql_acl.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables. Got rid of redundant code by using unlock_locked_tables()
function.
sql/sql_base.cc:
Changed code to use new MDL subsystem. Got rid of separate table
cache. Now used and unused TABLE instances are linked to the
TABLE_SHAREs in table definition cache.
check_unused():
Adjusted code to the fact that we no longer have separate table
cache. Removed dead code.
table_def_free():
Free TABLE instances referenced from TABLE_SHARE objects before
destroying table definition cache.
get_table_share():
Added assert which ensures that noone will be able to access
table (and its share) without acquiring some kind of metadata
lock first.
close_handle_and_leave_table_as_lock():
Adjusted code to the fact that TABLE instances now are linked to
list in TABLE_SHARE.
list_open_tables():
Changed this function to use table definition cache instead of
table cache.
free_cache_entry():
Unlink freed TABLE elements from the list of all TABLE instances
for the table in TABLE_SHARE.
kill_delayed_thread_for_table():
Added auxiliary for killing delayed insert threads for
particular table.
close_cached_tables():
Got rid of wait_for_refresh argument as we now rely on global
shared metadata lock to prevent FLUSH WITH READ LOCK sneaking in
when we are reopening tables. Heavily reworked this function to
use new MDL code and not to rely on separate table cache entity.
close_open_tables():
We no longer have separate table cache.
close_thread_tables():
Release metadata locks after closing all tables. Added skip_mdl
argument which allows us not to remove metadata lock requests
from the context in case when we are going to use this requests
later in mdl_wait_for_locks() and tdc_wait_for_old_versions().
close_thread_table()/close_table_for_reopen():
Since we no longer have separate table cache and all TABLE
instances are linked to TABLE_SHARE objects in table definition
cache we have to link/unlink TABLE object to/from appropriate
lists in the share.
name_lock_locked_table():
Moved redundant code to find_write_locked_table() function and
adjusted code to the fact that wait_while_table_is_used() can
now return with an error if our thread is killed.
reopen_table_entry():
We no longer need "link_in" argument as with MDL we no longer
call this function with dummy TABLE object pre-allocated and
added to the THD::open_tables. Also now we add newly-open TABLE
instance to the list of share's used TABLE instances.
table_cache_insert_placeholder():
Got rid of name-locking legacy.
lock_table_name_if_not_cached():
Moved to sql_table.cc the only place where it is used. It was
also reimplemented using new MDL API.
open_table():
- Reworked this function to use new MDL subsystem.
- Changed code to deal with table definition cache directly
instead of going through separate table cache.
- Now third argument is also used for requesting table repair
or auto-discovery of table's new definition. So its type was
changed from bool to enum.
find_locked_table()/find_write_locked_table():
Accept head of list of TABLE objects as first argument and use
this list instead of always searching in THD::open_tables list.
Also added auxiliary for finding write-locked locked tables.
reopen_table():
Adjusted function to work with new MDL subsystem and to properly
manuipulate with lists of used/unused TABLE instaces in
TABLE_SHARE.
reopen_tables():
Removed mark_share_as_old parameter. Instead of relying on it
and related behavior FLUSH TABLES WITH READ LOCK now takes
global shared metadata lock. Changed code after removing
separate table cache.
drop_locked_tables()/abort_locked_tables():
Got rid of functions which are no longer needed.
unlock_locked_tables():
Moved this function from sql_parse.cc and changed it to release
memory which was used for allocating metadata lock requests for
tables open and locked by LOCK TABLES.
tdc_open_view():
Intoduced function for opening a view by getting its definition
from disk (and table cache in future).
reopen_table_entry():
Introduced function for opening table definitions while holding
exclusive metatadata lock on it.
open_unireg_entry():
Got rid of this function. Most of its functionality is relocated
to open_table() and open_table_fini() functions, and some of it
to reopen_table_entry() and tdc_open_view(). Also code
resposible for auto-repair and auto-discovery of tables was
moved to separate function.
open_table_entry_fini():
Introduced function which contains common actions which finalize
process of TABLE object creation.
auto_repair_table():
Moved code responsible for auto-repair of table being opened
here.
handle_failed_open_table_attempt()
Moved code responsible for handling failing attempt to open
table to one place (retry due to lock conflict/old version,
auto-discovery and repair).
open_tables():
- Flush open HANDLER tables if they have old version of if there
is conflicting metadata lock against them (before this moment
we had this code in open_table()).
- When we open view which should be processed via derived table
on the second execution of prepared statement or stored
routine we still should call open_table() for it in order to
obtain metadata lock on it and prepare its security context.
- In cases when we discover that some special handling of
failure to open table is needed call
handle_failed_open_table_attempt() which handles all such
scenarios.
open_ltable():
Handling of various special scenarios of failure to open a table
was moved to separate handle_failed_open_table_attempt()
function.
remove_db_from_cache():
Removed this function as it is no longer used.
notify_thread_having_shared_lock():
Added callback which is invoked by MDL subsystem when acquiring
an exclusive lock, for each thread that has a conflicting shared
metadata lock.
expel_table_from_cache():
Introduced function for removing unused TABLE instances. Unlike
remove_table_from_cache() it relies on caller following MDL
protocol and having appropriate locks when calling it and thus
does not do any waiting if table is still in use.
tdc_wait_for_old_version():
Added function which allows open_tables() to wait in cases when
we discover that we should back-off due to presence of old
version of table.
abort_and_upgrade_lock():
Use new MDL calls.
mysql_wait_completed_table():
Got rid of unused function.
open_system_tables_for_read/for_update()/performance_schema_table():
Allocate MDL_LOCK objects on execution memory root in cases when
TABLE_LIST objects for corresponding tables is allocated on
stack.
close_performance_schema_table():
Release metadata locks after closing tables.
******
Use I_P_List for free/used tables list in the table share.
sql/sql_binlog.cc:
Use Relay_log_info::slave_close_thread_tables() method to enforce
that we always close tables open for RBR before deallocating
TABLE_LIST elements and MDL_LOCK objects for them.
sql/sql_class.cc:
Added meta-data locking contexts as part of Open_tables_state
context. Also introduced THD::locked_tables_root memory root
which is to be used for allocating MDL_LOCK objects for tables in
LOCK TABLES statement (end of lifetime for such objects is UNLOCK
TABLES so we can't use statement or execution root for them).
sql/sql_class.h:
Added meta-data locking contexts as part of Open_tables_state
context. Also introduced THD::locked_tables_root memory root
which is to be used for allocating MDL_LOCK objects for tables in
LOCK TABLES statement (end of lifetime for such objects is UNLOCK
TABLES so we can't use statement or execution root for them).
Note: handler_mdl_context and locked_tables_root and
mdl_el_root will be removed by subsequent patches.
sql/sql_db.cc:
mysql_rm_db() does not really need to call remove_db_from_cache()
as it drops each table in the database using
mysql_rm_table_part2(), which performs all necessary operations on
table (definition) cache.
sql/sql_delete.cc:
Use the new metadata locking API for TRUNCATE.
sql/sql_handler.cc:
Changed HANDLER implementation to use new metadata locking
subsystem. Note that MDL_LOCK objects for HANDLER tables are
allocated in the same chunk of heap memory as TABLE_LIST object
for those tables.
sql/sql_insert.cc:
mysql_insert():
find_locked_table() now takes head of list of TABLE object as
its argument instead of always scanning through THD::open_tables
list.
handle_delayed_insert():
Allocate metadata lock request object for table open by delayed
insert thread on execution memroot. create_table_from_items():
We no longer allocate dummy TABLE objects for tables being
created if they don't exist. As consequence
reopen_name_locked_table() no longer has link_in argument.
open_table() now has one more argument which is not relevant for
temporary tables.
sql/sql_parse.cc:
- Moved unlock_locked_tables() routine to sql_base.cc and made
available it in other files. Got rid of some redundant code by
using this function.
- Replaced boolean TABLE_LIST::create member with enum
open_table_type member.
- Use special memory root for allocating MDL_LOCK objects for
tables open and locked by LOCK TABLES (these object should live
till UNLOCK TABLES so we can't allocate them on statement nor
execution memory root). Also properly set metadata lock
upgradability attribure for those tables.
- Under LOCK TABLES it is no longer allowed to flush tables which
are not write-locked as this breaks metadata locking protocol
and thus potentially might lead to deadlock.
- Added auxiliary adjust_mdl_locks_upgradability() function.
sql/sql_partition.cc:
Adjusted code to the fact that reopen_tables() no longer has
"mark_share_as_old" argument. Got rid of comments which are no
longer true.
sql/sql_plist.h:
Added I_P_List template class for parametrized intrusive doubly
linked lists and I_P_List_iterator for corresponding iterator.
Unlike for I_List<> list elements of such list can participate in
several lists. Unlike List<> such lists are doubly-linked and
intrusive.
sql/sql_plugin.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables.
sql/sql_prepare.cc:
Replaced boolean TABLE_LIST::create member with enum
open_table_type member. This allows easily handle situation in
which instead of opening the table we want only to take exclusive
metadata lock on it.
sql/sql_rename.cc:
Use new metadata locking subsystem in implementation of RENAME
TABLE.
sql/sql_servers.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables. Got rid of redundant code by using unlock_locked_tables()
function.
sql/sql_show.cc:
Acquire shared metadata lock when we are getting information for
I_S table directly from TABLE_SHARE without doing full-blown table
open. We use high priority lock request in this situation in
order to avoid deadlocks.
Also allocate metadata lock requests objects (MDL_LOCK) on
execution memory root in cases when TABLE_LIST objects are also
allocated there
sql/sql_table.cc:
mysql_rm_table():
Removed comment which is no longer relevant.
mysql_rm_table_part2():
Now caller of mysql_ha_rm_tables() should not own LOCK_open.
Adjusted code to use new metadata locking subsystem instead of
name-locks.
lock_table_name_if_not_cached():
Moved this function from sql_base.cc to this file and
reimplemented it using metadata locking API.
mysql_create_table():
Adjusted code to use new MDL API.
wait_while_table_is_used():
Changed function to use new MDL subsystem. Made thread waiting
in it killable (this also led to introduction of return value so
caller can distinguish successful executions from situations
when waiting was aborted).
close_cached_tables():
Thread waiting in this function is killable now. As result it
has return value for distinguishing between succes and failure.
Got rid of redundant boradcast_refresh() call.
prepare_for_repair():
Use MDL subsystem instead of name-locks.
mysql_admin_table():
mysql_ha_rm_tables() now always assumes that caller doesn't own
LOCK_open.
mysql_repair_table():
We should mark all elements of table list as requiring
upgradable metadata locks.
mysql_create_table_like():
Use new MDL subsystem instead of name-locks.
create_temporary_tables():
We don't need to obtain metadata locks when creating temporary
table.
mysql_fast_or_online_alter_table():
Thread waiting in wait_while_table_is_used() is now killable.
mysql_alter_table():
Adjusted code to work with new MDL subsystem and to the fact
that threads waiting in what_while_table_is_used() and
close_cached_table() are now killable.
sql/sql_test.cc:
We no longer have separate table cache. TABLE instances are now
associated with/linked to TABLE_SHARE objects in table definition
cache.
sql/sql_trigger.cc:
Adjusted code to work with new metadata locking subsystem. Also
reopen_tables() no longer has mark_share_as_old argument (Instead
of relying on this parameter and related behavior FLUSH TABLES
WITH READ LOCK now takes global shared metadata lock).
sql/sql_udf.cc:
Allocate metadata lock requests objects (MDL_LOCK) on execution
memory root in cases when we use stack TABLE_LIST objects to open
tables.
sql/sql_update.cc:
Adjusted code to work with new meta-data locking subsystem.
sql/sql_view.cc:
Added proper meta-data locking to implementations of
CREATE/ALTER/DROP VIEW statements. Now we obtain exclusive
meta-data lock on a view before creating/ changing/dropping it.
This ensures that all concurrent statements that use this view
will finish before our statement will proceed and therefore we
will get correct order of statements in the binary log.
Also ensure that TABLE_LIST::mdl_upgradable attribute is properly
propagated for underlying tables of view.
sql/table.cc:
Added auxiliary alloc_mdl_locks() function for allocating metadata
lock request objects for all elements of table list.
sql/table.h:
TABLE_SHARE:
Got rid of unused members. Introduced members for storing lists
of used and unused TABLE objects for this share.
TABLE:
Added members for linking TABLE objects into per-share lists of
used and unused TABLE instances. Added member for holding
pointer to metadata lock for this table.
TABLE_LIST:
Replaced boolean TABLE_LIST::create member with enum
open_table_type member. This allows easily handle situation in
which instead of opening the table we want only to take
exclusive meta-data lock on it (we need this in order to handle
ALTER VIEW and CREATE VIEW statements).
Introduced new mdl_upgradable member for marking elements of
table list for which we need to take upgradable shared metadata
lock instead of plain shared metadata lock. Added pointer for
holding pointer to MDL_LOCK for the table.
Added auxiliary alloc_mdl_locks() function for allocating metadata
lock requests objects for all elements of table list. Added
auxiliary set_all_mdl_upgradable() function for marking all
elements in table list as requiring upgradable metadata locks.
storage/myisammrg/ha_myisammrg.cc:
Allocate MDL_LOCK objects for underlying tables of MERGE table.
To be reworked once Ingo pushes his patch for WL4144.
|
||
|
Konstantin Osipov
|
9a9e8d2311 |
Backport of:
---------------------------------------------------------------------- ChangeSet@1.2571, 2008-04-08 12:30:06+02:00, vvaintroub@wva. +122 -0 Bug#32082 : definition of VOID in my_global.h conflicts with Windows SDK headers VOID macro is now removed. Its usage is replaced with void cast. In some cases, where cast does not make much sense (pthread_*, printf, hash_delete, my_seek), cast is ommited. client/mysqladmin.cc: Bug#32082 : remove VOID macro client/mysqldump.c: Bug#32082 : remove VOID macro client/mysqlimport.c: Bug#32082 : remove VOID macro client/mysqlslap.c: Bug#32082 : remove VOID macro client/mysqltest.cc: Bug#32082 : remove VOID macro client/sql_string.cc: Bug#32082 : remove VOID macro extra/comp_err.c: Bug#32082 : remove VOID macro extra/replace.c: Bug#32082 : remove VOID macro include/my_alarm.h: Bug#32082 : remove VOID macro include/my_global.h: Bug#32082 : remove VOID macro libmysql/libmysql.c: Bug#32082 : remove VOID macro mysys/errors.c: Bug#32082 : remove VOID macro mysys/hash.c: Bug#32082 : remove VOID macro mysys/mf_iocache2.c: Bug#32082 : remove VOID macro mysys/mf_loadpath.c: Bug#32082 : remove VOID macro mysys/mf_path.c: Bug#32082 : remove VOID macro mysys/my_append.c: Bug#32082 : remove VOID macro mysys/my_clock.c: Bug#32082 : remove VOID macro mysys/my_copy.c: Bug#32082 : remove VOID macro mysys/my_fstream.c: Bug#32082 : remove VOID macro mysys/my_getwd.c: Bug#32082 : remove VOID macro mysys/my_lib.c: Bug#32082 : remove VOID macro mysys/my_lockmem.c: Bug#32082 : remove VOID macro mysys/my_pthread.c: Bug#32082 : remove VOID macro mysys/my_redel.c: Bug#32082 : remove VOID macro mysys/stacktrace.c: Bug#32082 : remove VOID macro mysys/thr_alarm.c: Bug#32082 : remove VOID macro mysys/thr_lock.c: Bug#32082 : remove VOID macro sql/derror.cc: Bug#32082 : remove VOID macro sql/des_key_file.cc: Bug#32082 : remove VOID macro sql/discover.cc: Bug#32082 : remove VOID macro sql/field.cc: Bug#32082 : remove VOID macro sql/filesort.cc: Bug#32082 : remove VOID macro sql/ha_ndbcluster.cc: Bug#32082 : remove VOID macro sql/ha_partition.cc: Bug#32082 : remove VOID macro sql/handler.cc: Bug#32082 : remove VOID macro sql/hostname.cc: Bug#32082 : remove VOID macro sql/init.cc: Bug#32082 : remove VOID macro sql/item.cc: Bug#32082 : remove VOID macro sql/item_cmpfunc.cc: Bug#32082 : remove VOID macro sql/item_strfunc.cc: Bug#32082 : remove VOID macro sql/lock.cc: Bug#32082 : remove VOID macro sql/log.cc: Bug#32082 : remove VOID macro sql/log_event.cc: Bug#32082 : remove VOID macro sql/mysqld.cc: Bug#32082 : remove VOID macro sql/opt_range.h: Bug#32082 : remove VOID macro sql/protocol.cc: Bug#32082 : remove VOID macro sql/records.cc: Bug#32082 : remove VOID macro sql/sp_head.cc: Bug#32082 : remove VOID macro sql/sp_pcontext.cc: Bug#32082 : remove VOID macro sql/sql_acl.cc: Bug#32082 : remove VOID macro sql/sql_base.cc: Bug#32082 : remove VOID macro sql/sql_cache.cc: Bug#32082 : remove VOID macro sql/sql_connect.cc: Bug#32082 : remove VOID macro sql/sql_db.cc: Bug#32082 : remove VOID macro sql/sql_delete.cc: Bug#32082 : remove VOID macro sql/sql_handler.cc: Bug#32082 : remove VOID macro sql/sql_insert.cc: Bug#32082 : remove VOID macro sql/sql_map.cc: Bug#32082 : remove VOID macro sql/sql_parse.cc: Bug#32082 : remove VOID macro sql/sql_select.cc: Bug#32082 : remove VOID macro sql/sql_servers.cc: Bug#32082 : remove VOID macro sql/sql_show.cc: Bug#32082 : remove VOID macro sql/sql_string.cc: Bug#32082 : remove VOID macro sql/sql_table.cc: Bug#32082 : remove VOID macro sql/sql_test.cc: Bug#32082 : remove VOID macro sql/sql_trigger.cc: Bug#32082 : remove VOID macro sql/sql_update.cc: Bug#32082 : remove VOID macro sql/sql_view.cc: Bug#32082 : remove VOID macro sql/table.cc: Bug#32082 : remove VOID macro sql/tztime.cc: Bug#32082 : remove VOID macro sql/udf_example.c: Bug#32082 : remove VOID macro sql/uniques.cc: Bug#32082 : remove VOID macro sql/unireg.cc: Bug#32082 : remove VOID macro storage/archive/ha_archive.cc: Bug#32082 : remove VOID macro storage/blackhole/ha_blackhole.cc: Bug#32082 : remove VOID macro storage/csv/ha_tina.cc: Bug#32082 : remove VOID macro storage/csv/transparent_file.cc: Bug#32082 : remove VOID macro storage/example/ha_example.cc: Bug#32082 : remove VOID macro storage/federated/ha_federated.cc: Bug#32082 : remove VOID macro storage/heap/hp_clear.c: Bug#32082 : remove VOID macro storage/heap/hp_create.c: Bug#32082 : remove VOID macro storage/heap/hp_test1.c: Bug#32082 : remove VOID macro storage/heap/hp_test2.c: Bug#32082 : remove VOID macro storage/innobase/handler/ha_innodb.cc: Bug#32082 : remove VOID macro storage/myisam/ft_eval.c: Bug#32082 : remove VOID macro storage/myisam/ha_myisam.cc: Bug#32082 : remove VOID macro storage/myisam/mi_changed.c: Bug#32082 : remove VOID macro storage/myisam/mi_check.c: Bug#32082 : remove VOID macro storage/myisam/mi_close.c: Bug#32082 : remove VOID macro storage/myisam/mi_create.c: Bug#32082 : remove VOID macro storage/myisam/mi_dbug.c: Bug#32082 : remove VOID macro storage/myisam/mi_delete.c: Bug#32082 : remove VOID macro storage/myisam/mi_delete_all.c: Bug#32082 : remove VOID macro storage/myisam/mi_dynrec.c: Bug#32082 : remove VOID macro storage/myisam/mi_info.c: Bug#32082 : remove VOID macro storage/myisam/mi_locking.c: Bug#32082 : remove VOID macro storage/myisam/mi_log.c: Bug#32082 : remove VOID macro storage/myisam/mi_open.c: Bug#32082 : remove VOID macro storage/myisam/mi_packrec.c: Bug#32082 : remove VOID macro storage/myisam/mi_panic.c: Bug#32082 : remove VOID macro storage/myisam/mi_rsame.c: Bug#32082 : remove VOID macro storage/myisam/mi_statrec.c: Bug#32082 : remove VOID macro storage/myisam/mi_test1.c: Bug#32082 : remove VOID macro storage/myisam/mi_test2.c: Bug#32082 : remove VOID macro storage/myisam/mi_test3.c: Bug#32082 : remove VOID macro storage/myisam/mi_update.c: Bug#32082 : remove VOID macro storage/myisam/mi_write.c: Bug#32082 : remove VOID macro storage/myisam/myisamchk.c: Bug#32082 : remove VOID macro storage/myisam/myisamlog.c: Bug#32082 : remove VOID macro storage/myisam/myisampack.c: Bug#32082 : remove VOID macro storage/myisam/sort.c: Bug#32082 : remove VOID macro storage/myisammrg/myrg_close.c: Bug#32082 : remove VOID macro storage/myisammrg/myrg_create.c: Bug#32082 : remove VOID macro storage/myisammrg/myrg_open.c: Bug#32082 : remove VOID macro strings/str_test.c: Bug#32082 : remove VOID macro tests/thread_test.c: Bug#32082 : remove VOID macro |
||
|
Konstantin Osipov
|
1b34d593b5 |
Backport of:
------------------------------------------------------------ revno: 2476.784.3 committer: davi@moksha.local timestamp: Tue 2007-10-02 21:27:31 -0300 message: Bug#25858 Some DROP TABLE under LOCK TABLES can cause deadlocks When a client (connection) holds a lock on a table and attempts to drop (obtain a exclusive lock) on a second table that is already held by a second client and the second client then attempts to drop the table that is held by the first client, leads to a circular wait deadlock. This scenario is very similar to trying to drop (or rename) a table while holding read locks and are correctly forbidden. The solution is to allow a drop table operation to continue only if the table being dropped is write (exclusively) locked, or if the table is temporary, or if the client is not holding any locks. Using this scheme prevents the creation of a circular chain in which each client is waiting for one table that the next client in the chain is holding. This is incompatible change, as can be seen by number of tests cases that needed to be fixed, but is consistent with respect to behavior of the different scenarios in which the circular wait might happen. mysql-test/r/drop.result: Test case result for Bug#25858 mysql-test/r/group_by.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table. mysql-test/r/insert_notembedded.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table mysql-test/r/lock.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table. mysql-test/r/lock_multi.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table. mysql-test/r/myisam.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table. mysql-test/r/view.result: Fix test case result wrt drop table under lock tables -- unlock tables before dropping table. mysql-test/t/drop.test: Add test case for Bug#25858 mysql-test/t/group_by.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/insert_notembedded.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/lock.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/lock_multi.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/myisam.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/query_cache_notembedded.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. mysql-test/t/view.test: Fix test case: unlock tables in preparation for a drop table. In some circumstances, dropping tables while holding locks leads to a deadlock. sql/lock.cc: When trying to obtain a name lock under lock tables, ensure that the table is properly exclusively locked and fail otherwise. |
||
|
Konstantin Osipov
|
fcf6c1548e |
Backport of:
revno: 2476.784.2 committer: davi@moksha.local timestamp: Thu 2007-09-27 16:56:27 -0300 message: Bug#28870 check that table locks are released/reset The problem is that some mysql_lock_tables error paths are not resetting the tables lock type back to TL_UNLOCK. If the lock types are not reset properly, a table might be returned to the table cache with wrong lock_type. The proposed fix is to ensure that the tables lock type is always properly reset when mysql_lock_tables fails. This is a incompatible change with respect to the process state information. sql/lock.cc: Merge mysql_lock_tables cleanup sequence and the reset_lock_data function into a single function and take steps to ensure it is always called for each error exit path. Also remove references to the redundant THD::locked variable which was almost exclusively used by this function and the same information is already on proc_info. sql/sql_class.cc: Remove references to the THD::locked variable. sql/sql_class.h: Remove the THD::locked variable. sql/sql_show.cc: Remove references to THD:locked, state_info will now default to proc_info. |
||
unknown
|
6aad537a6a | Merge MySQL 5.1.39 into MariaDB 5.1. | ||
|
Konstantin Osipov
|
9b41c7532d |
Backport of:
---------------------------------------------------------- revno: 2617.22.5 committer: Konstantin Osipov <kostja@sun.com> branch nick: mysql-6.0-runtime timestamp: Tue 2009-01-27 05:08:48 +0300 message: Remove non-prefixed use of HASH. Always use my_hash_init(), my_hash_inited(), my_hash_search(), my_hash_element(), my_hash_delete(), my_hash_free() rather than non-prefixed counterparts (hash_init(), etc). Remove the backward-compatible defines. |
||
Staale Smedseng
|
5be4c38226 | Merge from 5.0 for 43414 | ||
|
Staale Smedseng
|
1ba25ae47c |
Bug #43414 Parenthesis (and other) warnings compiling MySQL
with gcc 4.3.2
This patch fixes a number of GCC warnings about variables used
before initialized. A new macro UNINIT_VAR() is introduced for
use in the variable declaration, and LINT_INIT() usage will be
gradually deprecated. (A workaround is used for g++, pending a
patch for a g++ bug.)
GCC warnings for unused results (attribute warn_unused_result)
for a number of system calls (present at least in later
Ubuntus, where the usual void cast trick doesn't work) are
also fixed.
client/mysqlmanager-pwgen.c:
A fix for warn_unused_result, adding fallback to use of
srand()/rand() if /dev/random cannot be used. Also actually
adds calls to rand() in the second branch so that it actually
creates a random password.
|
||
Michael Widenius
|
e726e587ec |
Merged with mysql-5.1 tree.
client/mysqltest.cc: Manually merged configure.in: Manually merged mysql-test/r/variables.result: Manually merged mysql-test/t/variables.test: Manually merged mysys/my_pread.c: Manually merged mysys/my_read.c: Manually merged sql/mysqld.cc: Manually merged storage/csv/ha_tina.h: Manually merged storage/myisam/ha_myisam.cc: Manually merged storage/myisam/mi_check.c: Manually merged storage/myisam/mi_search.c: Manually merged |
||
Chad MILLER
|
14f923c028 | Merge 5.0.80 release and 5.0 community. Version left at 5.0.80. | ||
Michael Widenius
|
a8fdaa6f2c |
Merge with base MySQL 5.1
Contains fixes for test cases Changed release tag to beta configure.in: change release tag to beta |
||
Ignacio Galarza
|
5b7347bda3 |
Bug#29125 Windows Server X64: so many compiler warnings
- Remove bothersome warning messages. This change focuses on the warnings that are covered by the ignore file: support-files/compiler_warnings.supp. - Strings are guaranteed to be max uint in length |
||
|
Ignacio Galarza
|
54fbbf9591 |
Bug#29125 Windows Server X64: so many compiler warnings
- Remove bothersome warning messages. This change focuses on the warnings that are covered by the ignore file: support-files/compiler_warnings.supp. - Strings are guaranteed to be max uint in length |
||
Guilhem Bichot
|
33b194c36e |
Merge of 5.1-main into 5.1-maria. There were no changes to storage/myisam, or mysql-test/t/*myisam*.
However there were three new tests mysql-test/suite/parts/t/partition*myisam.test, of which I make here copies for Maria. |
||
Build Team
|
e85fe79430 |
Added "Sun Microsystems, Inc." to copyright headers on files modified
since Oct 1st |
||
|
Michael Widenius
|
f47e003e1b | Merged 5.1 with maria 5.1 | ||
Davi Arnaut
|
0406d409ea |
Bug#34306: Can't make copy of log tables when server binary log is enabled
The problem is that when statement-based replication was enabled, statements such as INSERT INTO .. SELECT FROM .. and CREATE TABLE .. SELECT FROM need to grab a read lock on the source table that does not permit concurrent inserts, which would in turn be denied if the source table is a log table because log tables can't be locked exclusively. The solution is to not take such a lock when the source table is a log table as it is unsafe to replicate log tables under statement based replication. Furthermore, the read lock that does not permits concurrent inserts is now only taken if statement-based replication is enabled and if the source table is not a log table. include/thr_lock.h: Introduce yet another lock type that my get upgraded depending on the binary log format. This is not a optimal solution but can be easily improved later. mysql-test/r/log_tables.result: Add test case result for Bug#34306 mysql-test/suite/binlog/r/binlog_stm_row.result: Add test case result for Bug#34306 mysql-test/suite/binlog/t/binlog_stm_row.test: Add test case for Bug#34306 mysql-test/t/log_tables.test: Add test case for Bug#34306 sql/lock.cc: Assert that TL_READ_DEFAULT is not a real lock type. sql/mysql_priv.h: Export new function. sql/mysqld.cc: Remove using_update_log. sql/sql_base.cc: Introduce function that returns the appropriate read lock type depending on how the statement is going to be replicated. It will only take a TL_READ_NO_INSERT log if the binary is enabled and the binary log format is statement-based and the table is not a log table. sql/sql_parse.cc: Remove using_update_log. sql/sql_update.cc: Use new function to choose read lock type. sql/sql_yacc.yy: The lock type is now decided at open_tables time. This old behavior was actually misleading as the binary log format can be dynamically switched and this would not change for statements that have already been parsed when the binary log format is changed (ie: prepared statements). |
||
|
Chad MILLER
|
a4e7283a92 | Merge from 5.0 trunk. | ||
unknown
|
9fd89afca0 |
Fix for bug #35732: read-only blocks SELECT statements in InnoDB
Problem: SELECTs prohibited for a transactional SE in autocommit mode if read_only is set. Fix: allow them. mysql-test/r/read_only_innodb.result: Fix for bug #35732: read-only blocks SELECT statements in InnoDB - test result. mysql-test/t/read_only_innodb.test: Fix for bug #35732: read-only blocks SELECT statements in InnoDB - test case. sql/handler.cc: Fix for bug #35732: read-only blocks SELECT statements in InnoDB - in autocommit mode thd->transaction.all list is empty thus is_real_trans set to TRUE for any SELECTs, so using it in the "read_only" check is insufficient. ha_check_and_coalesce_trx_read_only() changed to return number of engines with read-write changes. This value is used in the "read-only" check and checks for GLOBAL READ LOCK. sql/lock.cc: Fix for bug #35732: read-only blocks SELECT statements in InnoDB - added assert(protect_against_global_read_lock) before decreasing, in order to catch (uint) 0 - 1 situation due to wrong wait_if_global_read_lock()/start_waiting_global_read_lock() call sequence. |
||
unknown
|
11714e6842 | fixed warnings from the fix of 26243 | ||
unknown
|
7fdbc4230e |
Merge janus.mylan:/usr/home/serg/Abk/mysql-5.1
into janus.mylan:/usr/home/serg/Abk/mysql-maria Makefile.am: Auto merged configure.in: Auto merged BitKeeper/triggers/post-commit: Auto merged client/mysqldump.c: Auto merged client/mysqltest.c: Auto merged include/my_dbug.h: Auto merged include/mysql_com.h: Auto merged libmysql/CMakeLists.txt: Auto merged libmysqld/Makefile.am: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/t/disabled.def: Auto merged mysql-test/t/variables.test: Auto merged server-tools/instance-manager/CMakeLists.txt: Auto merged server-tools/instance-manager/mysql_connection.cc: Auto merged sql/Makefile.am: Auto merged sql/filesort.cc: Auto merged sql/gen_lex_hash.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/ha_partition.cc: Auto merged sql/item_func.cc: Auto merged sql/item_strfunc.cc: Auto merged sql/lex.h: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/net_serv.cc: Auto merged sql/opt_range.cc: Auto merged sql/set_var.h: Auto merged sql/slave.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.h: Auto merged sql/sql_table.cc: Auto merged sql/sql_update.cc: Auto merged sql/sql_yacc.yy: Auto merged sql/table.cc: Auto merged sql/table.h: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged sql/handler.cc: merged sql/handler.h: merged sql/mysql_priv.h: merged sql/mysqld.cc: merged sql/set_var.cc: merged sql/sql_select.cc: merged sql/sql_show.cc: merged unittest/mysys/my_atomic-t.c: merged |
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unknown
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295732b580 |
Merge bk-internal.mysql.com:/home/bk/mysql-5.1-maint
into janus.mylan:/usr/home/serg/Abk/mysql-5.1 configure.in: Auto merged libmysql/CMakeLists.txt: Auto merged libmysqld/lib_sql.cc: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/information_schema.result: Auto merged mysql-test/t/information_schema.test: Auto merged sql/Makefile.am: Auto merged sql/field.cc: Auto merged sql/handler.cc: Auto merged sql/item.cc: Auto merged sql/item_func.cc: Auto merged sql/item_geofunc.cc: Auto merged sql/item_subselect.cc: Auto merged sql/key.cc: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/log_event.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/net_serv.cc: Auto merged sql/opt_sum.cc: Auto merged sql/protocol.h: Auto merged sql/repl_failsafe.cc: Auto merged sql/set_var.cc: Auto merged sql/set_var.h: Auto merged sql/sp_head.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_cache.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_select.h: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_update.cc: Auto merged sql/sql_yacc.yy: Auto merged sql/table.h: Auto merged storage/archive/ha_archive.cc: Auto merged storage/innobase/buf/buf0buf.c: Auto merged storage/innobase/buf/buf0flu.c: Auto merged storage/innobase/buf/buf0lru.c: Auto merged storage/innobase/include/buf0buf.h: Auto merged storage/innobase/include/buf0buf.ic: Auto merged storage/innobase/include/sync0arr.h: Auto merged storage/innobase/include/sync0rw.h: Auto merged storage/innobase/include/sync0rw.ic: Auto merged storage/innobase/include/sync0sync.h: Auto merged storage/innobase/os/os0sync.c: Auto merged storage/innobase/sync/sync0arr.c: Auto merged storage/innobase/sync/sync0rw.c: Auto merged storage/innobase/sync/sync0sync.c: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged sql/ha_ndbcluster.cc: merged sql/item_cmpfunc.cc: merged sql/protocol.cc: merged sql/slave.cc: merged sql/sql_class.h: merged sql/sql_parse.cc: merged |
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unknown
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dd3bba09f2 |
Merge a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-5.1-main
into a88-113-38-195.elisa-laajakaista.fi:/home/my/bk/mysql-maria.new BitKeeper/etc/ignore: auto-union BUILD/compile-dist: Auto merged client/mysqladmin.cc: Auto merged client/mysqldump.c: Auto merged config/ac-macros/plugins.m4: Auto merged configure.in: Auto merged dbug/dbug.c: Auto merged include/keycache.h: Auto merged include/m_string.h: Auto merged include/my_global.h: Auto merged include/my_pthread.h: Auto merged include/my_sys.h: Auto merged include/mysql_com.h: Auto merged libmysql/CMakeLists.txt: Auto merged libmysql/Makefile.shared: Auto merged mysql-test/lib/mtr_cases.pl: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/innodb.result: Auto merged mysql-test/r/merge.result: Auto merged mysql-test/r/myisam.result: Auto merged mysql-test/r/mysqldump.result: Auto merged mysql-test/r/ps_2myisam.result: Auto merged mysql-test/r/ps_3innodb.result: Auto merged mysql-test/r/ps_4heap.result: Auto merged mysql-test/r/ps_5merge.result: Auto merged mysql-test/r/query_cache.result: Auto merged mysql-test/r/subselect.result: Auto merged mysql-test/r/view.result: Auto merged mysql-test/suite/ndb/r/ps_7ndb.result: Auto merged mysql-test/suite/rpl/r/rpl_switch_stm_row_mixed.result: Auto merged mysql-test/suite/rpl/t/rpl_switch_stm_row_mixed.test: Auto merged mysql-test/t/delayed.test: Auto merged mysql-test/t/disabled.def: Auto merged mysql-test/t/myisam.test: Auto merged mysql-test/t/mysqldump.test: Auto merged mysql-test/t/query_cache.test: Auto merged mysql-test/t/query_cache_notembedded.test: Auto merged mysql-test/t/subselect.test: Auto merged mysql-test/t/variables.test: Auto merged mysql-test/t/view.test: Auto merged mysys/CMakeLists.txt: Auto merged mysys/Makefile.am: Auto merged mysys/mf_keycache.c: Auto merged mysys/my_delete.c: Auto merged mysys/my_init.c: Auto merged mysys/my_symlink2.c: Auto merged mysys/safemalloc.c: Auto merged mysys/thr_lock.c: Auto merged sql/field.h: Auto merged sql/filesort.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/ha_partition.cc: Auto merged sql/handler.cc: Auto merged sql/handler.h: Auto merged sql/item.h: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/item_strfunc.cc: Auto merged sql/item_xmlfunc.cc: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/log_event_old.h: Auto merged sql/mysql_priv.h: Auto merged sql/net_serv.cc: Auto merged sql/opt_range.cc: Auto merged sql/set_var.h: Auto merged sql/slave.cc: Auto merged sql/slave.h: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_plugin.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/share/errmsg.txt: Auto merged sql/table.cc: Auto merged sql/table.h: Auto merged sql/udf_example.c: Auto merged storage/csv/ha_tina.cc: Auto merged storage/myisam/ft_boolean_search.c: Auto merged storage/myisam/ft_nlq_search.c: Auto merged storage/myisam/ft_parser.c: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/ha_myisam.h: Auto merged storage/myisam/mi_check.c: Auto merged storage/myisam/mi_dynrec.c: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisam/mi_packrec.c: Auto merged storage/myisam/mi_write.c: Auto merged storage/myisam/myisamchk.c: Auto merged storage/myisam/myisampack.c: Auto merged storage/myisam/rt_index.c: Auto merged storage/myisam/sort.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged storage/myisammrg/ha_myisammrg.h: Auto merged strings/llstr.c: Auto merged support-files/compiler_warnings.supp: Auto merged Makefile.am: Manual merge from 5.1 to maria. client/mysqltest.c: Manual merge from 5.1 to maria. include/my_base.h: Manual merge from 5.1 to maria. mysql-test/t/merge.test: Manual merge from 5.1 to maria. mysys/my_getopt.c: Manual merge from 5.1 to maria. mysys/thr_mutex.c: Manual merge from 5.1 to maria. sql/mysqld.cc: Manual merge from 5.1 to maria. sql/set_var.cc: Manual merge from 5.1 to maria. sql/sql_table.cc: Manual merge from 5.1 to maria. sql/sql_yacc.yy: Manual merge from 5.1 to maria. sql/unireg.cc: Manual merge from 5.1 to maria. |
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unknown
|
7fd0ad21a7 |
Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-forcollapseandmerge
into zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-maint CMakeLists.txt: Auto merged configure.in: Auto merged libmysql/CMakeLists.txt: Auto merged libmysqld/lib_sql.cc: Auto merged mysql-test/r/information_schema_db.result: Auto merged mysql-test/t/information_schema.test: Auto merged sql/CMakeLists.txt: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/item_cmpfunc.cc: Auto merged sql/item_func.cc: Auto merged sql/lock.cc: Auto merged sql/log_event.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/repl_failsafe.cc: Auto merged sql/set_var.cc: Auto merged sql/set_var.h: Auto merged sql/sp_head.cc: Auto merged sql/sql_cache.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_lex.h: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_repl.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_view.cc: Auto merged sql/sql_yacc.yy: Auto merged sql/structs.h: Auto merged sql/table.h: Auto merged storage/archive/ha_archive.cc: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged support-files/mysql.spec.sh: Auto merged client/mysqlcheck.c: Manual merge. mysql-test/r/information_schema.result: Manual merge. mysql-test/r/mysqlcheck.result: Manual merge. mysql-test/t/mysqlcheck.test: Manual merge. sql/slave.cc: Manual merge. sql/sql_base.cc: Manual merge. sql/sql_delete.cc: Manual merge. sql/sql_parse.cc: Manual merge. sql/sql_update.cc: Manual merge. |
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unknown
|
e223c32077 |
Bug#30273 - merge tables: Can't lock file (errno: 155)
The patch for Bug 26379 (Combination of FLUSH TABLE and REPAIR TABLE corrupts a MERGE table) fixed this bug too. However it revealed a new bug that crashed the server. Flushing a merge table at the moment when it is between open and attach of children crashed the server. The flushing thread wants to abort locks on the flushed table. It calls ha_myisammrg::lock_count() and ha_myisammrg::store_lock() on the TABLE object of the other thread. Changed ha_myisammrg::lock_count() and ha_myisammrg::store_lock() to accept non-attached children. ha_myisammrg::lock_count() returns the number of MyISAM tables in the MERGE table so that the memory allocation done by get_lock_data() is done correctly, even if the children become attached before ha_myisammrg::store_lock() is called. ha_myisammrg::store_lock() will not return any lock if the children are not attached. This is however a change in the handler interface. lock_count() can now return a higher number than store_lock() stores locks. This is more safe than the reverse implementation would be. get_lock_data() in the SQL layer is adjusted accordingly. It sets MYSQL_LOCK::lock_count based on the number of locks returned by the handler::store_lock() calls, not based on the numbers returned by the handler::lock_count() calls. The latter are only used for allocation of memory now. No test case. The test suite cannot reliably run FLUSH between lock_count() and store_lock() of another thread. The bug report contains a program that can repeat the problem with some probability. include/myisammrg.h: Bug#30273 - merge tables: Can't lock file (errno: 155) Added mutex to struct st_myrg_info (MYRG_INFO). sql/handler.h: Bug#30273 - merge tables: Can't lock file (errno: 155) Extended comments for handler::lock_count() and handler::store_lock(). sql/lock.cc: Bug#30273 - merge tables: Can't lock file (errno: 155) Changed get_lock_data() so that the final lock_count is taken from the number of locks returned from handler::store_lock() instead of from handler::lock_count(). sql/sql_base.cc: Fixed a purecov comment. (unrelated to the rest of the changeset) storage/myisammrg/ha_myisammrg.cc: Bug#30273 - merge tables: Can't lock file (errno: 155) Changed ha_myisammrg::lock_count() and ha_myisammrg::store_lock() to accept non-attached children. Protected ha_myisammrg::store_lock() by MYRG_INFO::mutex. storage/myisammrg/myrg_close.c: Bug#30273 - merge tables: Can't lock file (errno: 155) Added MYRG_INFO::mutex destruction to myrg_parent_close(). storage/myisammrg/myrg_open.c: Bug#30273 - merge tables: Can't lock file (errno: 155) Added MYRG_INFO::mutex initialization to myrg_parent_open(). Protected myrg_attach_children() and myrg_detach_children() by MYRG_INFO::mutex. Fixed a purecov comment. (unrelated to the rest of the changeset) |
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|
unknown
|
f48feae696 |
Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-comeng-unification
into zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge BitKeeper/deleted/.del-ha_berkeley.cc: Auto merged BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb: Auto merged BitKeeper/triggers/post-commit: Auto merged client/mysqlcheck.c: Auto merged include/config-win.h: Auto merged include/my_dbug.h: Auto merged libmysqld/Makefile.am: Auto merged mysql-test/r/func_in.result: Auto merged mysql-test/r/information_schema.result: Auto merged mysql-test/r/information_schema_db.result: Auto merged mysql-test/t/func_in.test: Auto merged mysql-test/t/information_schema.test: Auto merged sql/Makefile.am: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/item_cmpfunc.cc: Auto merged sql/item_func.cc: Auto merged sql/lock.cc: Auto merged sql/log_event.cc: Auto merged sql/repl_failsafe.cc: Auto merged sql/set_var.h: Auto merged sql/sp_head.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_repl.cc: Auto merged sql/sql_view.cc: Auto merged sql/structs.h: Auto merged sql/table.h: Auto merged storage/archive/ha_archive.cc: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/mi_open.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged storage/ndb/src/common/util/File.cpp: Auto merged configure.in: Manual merge. sql/CMakeLists.txt: Manual merge. sql/mysql_priv.h: Manual merge. sql/mysqld.cc: Manual merge. sql/set_var.cc: Manual merge. sql/slave.cc: Manual merge. sql/sql_cache.cc: Manual merge. sql/sql_class.cc: Manual merge. sql/sql_lex.h: Manual merge. sql/sql_parse.cc: Manual merge. sql/sql_select.cc: Manual merge. sql/sql_show.cc: Manual merge. sql/sql_table.cc: Manual merge. sql/sql_update.cc: Manual merge. sql/sql_yacc.yy: Manual merge. |
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unknown
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d43c15b0de | Doxygenization of comments. | ||
unknown
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f4afcec393 |
Merge hynda.mysql.fi:/home/my/mysql-5.1-main
into hynda.mysql.fi:/home/my/mysql-maria BitKeeper/etc/ignore: auto-union BUILD/SETUP.sh: Auto merged BitKeeper/deleted/.del-CMakeLists.txt~99a50df6: Auto merged Makefile.am: Auto merged client/mysqldump.c: Auto merged configure.in: Auto merged include/Makefile.am: Auto merged include/keycache.h: Auto merged include/m_string.h: Auto merged include/my_sys.h: Auto merged libmysqld/Makefile.am: Auto merged mysql-test/extra/rpl_tests/rpl_insert_delayed.test: Auto merged mysql-test/lib/mtr_cases.pl: Auto merged mysql-test/lib/mtr_misc.pl: Auto merged mysql-test/lib/mtr_process.pl: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/lib/mtr_timer.pl: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/r/alter_table.result: Auto merged mysql-test/r/merge.result: Auto merged mysql-test/r/mysqldump.result: Auto merged mysql-test/r/query_cache.result: Auto merged mysql-test/r/subselect.result: Auto merged mysql-test/r/view.result: Auto merged mysql-test/suite/ndb/r/ps_7ndb.result: Auto merged mysql-test/suite/rpl/r/rpl_events.result: Auto merged mysql-test/suite/rpl/r/rpl_insert.result: Auto merged mysql-test/suite/rpl/r/rpl_row_insert_delayed.result: Auto merged mysql-test/suite/rpl/r/rpl_stm_flsh_tbls.result: Auto merged mysql-test/suite/rpl/r/rpl_stm_insert_delayed.result: Auto merged mysql-test/suite/rpl/r/rpl_switch_stm_row_mixed.result: Auto merged mysql-test/suite/rpl/t/rpl_insert.test: Auto merged mysql-test/suite/rpl/t/rpl_stm_flsh_tbls.test: Auto merged mysql-test/suite/rpl/t/rpl_switch_stm_row_mixed.test: Auto merged mysql-test/t/alter_table.test: Auto merged mysql-test/t/myisam.test: Auto merged mysql-test/t/mysqldump.test: Auto merged mysql-test/t/query_cache.test: Auto merged mysql-test/t/subselect.test: Auto merged mysql-test/t/view.test: Auto merged mysys/array.c: Auto merged mysys/mf_keycache.c: Auto merged mysys/my_init.c: Auto merged mysys/my_symlink2.c: Auto merged mysys/safemalloc.c: Auto merged mysys/thr_lock.c: Auto merged sql/Makefile.am: Auto merged sql/filesort.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/ha_partition.cc: Auto merged sql/ha_partition.h: Auto merged sql/handler.h: Auto merged sql/item_func.cc: Auto merged sql/item_func.h: Auto merged sql/item_xmlfunc.cc: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/net_serv.cc: Auto merged sql/opt_range.cc: Auto merged sql/set_var.cc: Auto merged sql/slave.cc: Auto merged sql/slave.h: Auto merged sql/sql_class.cc: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_table.cc: Auto merged sql/share/errmsg.txt: Auto merged sql/sql_test.cc: Auto merged sql/table.h: Auto merged sql/udf_example.c: Auto merged sql/uniques.cc: Auto merged sql/unireg.cc: Auto merged storage/csv/ha_tina.h: Auto merged storage/myisam/ft_boolean_search.c: Auto merged storage/myisam/ft_nlq_search.c: Auto merged storage/myisam/ft_parser.c: Auto merged storage/myisam/ft_stopwords.c: Auto merged storage/myisam/ha_myisam.cc: Auto merged storage/myisam/ha_myisam.h: Auto merged storage/myisam/mi_check.c: Auto merged storage/myisam/mi_create.c: Auto merged storage/myisam/mi_delete.c: Auto merged storage/myisam/mi_dynrec.c: Auto merged storage/myisam/mi_extra.c: Auto merged storage/myisam/mi_key.c: Auto merged storage/myisam/mi_locking.c: Auto merged storage/myisam/mi_log.c: Auto merged storage/myisam/mi_packrec.c: Auto merged storage/myisam/mi_rkey.c: Auto merged storage/myisam/mi_search.c: Auto merged storage/myisam/mi_test1.c: Auto merged storage/myisam/mi_test2.c: Auto merged storage/myisam/mi_update.c: Auto merged storage/myisam/mi_write.c: Auto merged storage/myisam/myisamchk.c: Auto merged storage/myisam/myisamlog.c: Auto merged storage/myisam/myisampack.c: Auto merged storage/myisam/sort.c: Auto merged storage/myisam/sp_test.c: Auto merged storage/myisammrg/ha_myisammrg.cc: Auto merged storage/myisammrg/ha_myisammrg.h: Auto merged storage/ndb/src/mgmapi/mgmapi.cpp: Auto merged support-files/compiler_warnings.supp: Auto merged client/mysqltest.c: Manual merge between mysql-5.1 and mysql-maria include/my_base.h: Manual merge between mysql-5.1 and mysql-maria include/my_global.h: Manual merge between mysql-5.1 and mysql-maria include/myisam.h: Manual merge between mysql-5.1 and mysql-maria libmysql/Makefile.shared: Manual merge between mysql-5.1 and mysql-maria mysql-test/r/events_logs_tests.result: Manual merge between mysql-5.1 and mysql-maria mysql-test/suite/rpl/r/rpl_row_flsh_tbls.result: Manual merge between mysql-5.1 and mysql-maria mysql-test/suite/rpl/t/rpl_row_flsh_tbls.test: Manual merge between mysql-5.1 and mysql-maria mysql-test/t/disabled.def: Manual merge between mysql-5.1 and mysql-maria mysql-test/t/events_logs_tests.test: Manual merge between mysql-5.1 and mysql-maria mysys/my_compress.c: Manual merge between mysql-5.1 and mysql-maria mysys/my_getsystime.c: Manual merge between mysql-5.1 and mysql-maria mysys/my_open.c: Manual merge between mysql-5.1 and mysql-maria sql/handler.cc: Manual merge between mysql-5.1 and mysql-maria sql/set_var.h: Manual merge between mysql-5.1 and mysql-maria sql/sql_class.h: Manual merge between mysql-5.1 and mysql-maria sql/sql_show.cc: Manual merge between mysql-5.1 and mysql-maria sql/sql_sort.h: Manual merge between mysql-5.1 and mysql-maria sql/sql_yacc.yy: Manual merge between mysql-5.1 and mysql-maria sql/table.cc: Manual merge between mysql-5.1 and mysql-maria storage/csv/ha_tina.cc: Manual merge between mysql-5.1 and mysql-maria storage/myisam/mi_open.c: Manual merge between mysql-5.1 and mysql-maria storage/myisam/myisamdef.h: Manual merge between mysql-5.1 and mysql-maria unittest/mysys/my_atomic-t.c: Manual merge between mysql-5.1 and mysql-maria |
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|
unknown
|
b86904731f |
Merge bk-internal.mysql.com:/home/bk/mysql-5.0
into zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.0-community BitKeeper/triggers/post-commit: Auto merged CMakeLists.txt: Auto merged VC++Files/sql/mysqld.vcproj: Auto merged client/CMakeLists.txt: Auto merged extra/CMakeLists.txt: Auto merged libmysql/CMakeLists.txt: Auto merged myisam/CMakeLists.txt: Auto merged myisam/mi_open.c: Auto merged mysql-test/r/information_schema.result: Auto merged mysql-test/r/information_schema_db.result: Auto merged mysql-test/t/information_schema.test: Auto merged ndb/src/common/util/File.cpp: Auto merged server-tools/instance-manager/CMakeLists.txt: Auto merged sql/CMakeLists.txt: Auto merged sql/Makefile.am: Auto merged sql/ha_archive.cc: Auto merged sql/ha_berkeley.cc: Auto merged sql/ha_myisam.cc: Auto merged sql/ha_myisammrg.cc: Auto merged sql/ha_ndbcluster.cc: Auto merged sql/item_cmpfunc.cc: Auto merged sql/item_func.cc: Auto merged sql/lock.cc: Auto merged sql/log_event.cc: Auto merged sql/mysql_priv.h: Auto merged sql/mysqld.cc: Auto merged sql/set_var.cc: Auto merged sql/slave.cc: Auto merged sql/sp_head.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_cache.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_delete.cc: Auto merged sql/sql_insert.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_lex.h: Auto merged sql/sql_prepare.cc: Auto merged sql/sql_repl.cc: Auto merged sql/sql_select.cc: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_update.cc: Auto merged sql/sql_view.cc: Auto merged sql/sql_yacc.yy: Auto merged sql/table.h: Auto merged win/README: Auto merged win/configure.js: Auto merged configure.in: manual merge. version update. sql/sql_parse.cc: manual merge |
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unknown
|
5183a4b00b |
Fixed several bugs found by running *.test with maria engine
Renamed HA_EXTRA_PREAPRE_FOR_DELETE to HA_EXTRA_PERPARE_FOR_DROP Added HA_EXTRA_PREPARE_FOR_RENAME (as we in the code before used HA_EXTRA_PREPARE_FOR_DELETE also for renames which confused things) Allow multiple write locks for same page by same file handle Don't write table state if table is not changed include/my_base.h: Renamed HA_EXTRA_PREAPRE_FOR_DELETE to HA_EXTRA_PERPARE_FOR_DROP Added HA_EXTRA_PREPARE_FOR_RENAME (as we in the code before used HA_EXTRA_PREPARE_FOR_DELETE also for renames which confused things) mysql-test/r/maria.result: More tests of things that failed in other tests mysql-test/t/maria.test: More tests of things that failed in other tests sql/ha_partition.cc: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP Use HA_EXTRA_PREPARE_FOR_RENAME for renames sql/ha_partition.h: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP Use HA_EXTRA_PREPARE_FOR_RENAME for renames sql/lock.cc: Fixed comment sql/sql_table.cc: Fixed wrong usage of HA_EXTRA_PREAPRE_FOR_DELETE storage/maria/ha_maria.cc: Added missing _ma_renable_logging_for_table() (When using with ALTER TABLE + repair index) Enabled fast generation of index storage/maria/ma_bitmap.c: Fixed bug when resetting full pages when page was a tail page storage/maria/ma_blockrec.c: Fixed several bugs found by running *.test with maria engine: During update we keep old changed pages locked with a write lock to be able to reuse them. - Fixed bug with allocated but not used tail part - Fixed bug with blob that only had tail part - Fixed bug when update reused a page (needed multiple write locks for same page) - Fixed bug when first extent was a tail block storage/maria/ma_check.c: Better error message when bitmap is destroyed storage/maria/ma_close.c: Only write status if file was changed. Fixed bug when maria_chk -e file_name changed the file. storage/maria/ma_dynrec.c: Removed not used argument to _ma_state_info_read_dsk storage/maria/ma_extra.c: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP Use HA_EXTRA_PREPARE_FOR_RENAME for renames Only ignore flushing of pages for DROP (not rename) storage/maria/ma_locking.c: Removed not used argument to _ma_state_info_read_dsk storage/maria/ma_open.c: Removed not used argument to _ma_state_info_read_dsk storage/maria/ma_pagecache.c: Allow multiple write locks for same page by same file handle (Not yet complete, Sanja will fix) storage/maria/ma_recovery.c: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP storage/maria/maria_def.h: Removed not used argument to _ma_state_info_read_dsk storage/myisam/mi_extra.c: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP Use HA_EXTRA_PREPARE_FOR_RENAME for renames Only ignore flushing of pages for DROP (not rename) storage/myisammrg/ha_myisammrg.cc: HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP Use HA_EXTRA_PREPARE_FOR_RENAME for renames |
||
unknown
|
e7d7a2382f |
Merge moksha.local:/Users/davi/mysql/push/bugs/25164-5.0
into moksha.local:/Users/davi/mysql/push/bugs/25164-5.1 sql/lock.cc: Auto merged mysql-test/include/deadlock.inc: Auto merged mysql-test/r/deadlock_innodb.result: Auto merged |
||
|
unknown
|
369a5f1cdc |
Bug#25164 create table a as select * from A hangs
The problem from a user's perspective: user creates table A, and then tries to CREATE TABLE a SELECT from A - and this causes a deadlock error, a hang, or fails with a debug assert, but only if the storage engine is InnoDB. The origin of the problem: InnoDB uses case-insensitive collation (system_charset_info) when looking up the internal table share, thus returning the same share for 'a' and 'A'. Cause of the user-visible behavior: since the same share is returned to SQL locking subsystem, it assumes that the same table is first locked (within the same session) for WRITE, and then for READ, and returns a deadlock error. However, the code is wrong in not properly cleaning up upon an error, leaving external locks in place, which leads to assertion failures and hangs. Fix that has been implemented: the SQL layer should properly propagate the deadlock error, cleaning up and freeing all resources. Further work towards a more complete solution: InnoDB should not use case insensitive collation for table share hash if table names on disk honor the case. mysql-test/r/innodb-deadlock.result: Bug#25164 test case result mysql-test/t/innodb-deadlock.test: Bug#25164 test case. The CREATE TABLE may fail depending on the character set of the system and filesystem, but it should never hang. sql/lock.cc: Unlock the storage engine "external" table level locks, if the MySQL thr_lock locking subsystem detects a deadlock error. |
||
|
unknown
|
7ee93c1639 |
Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates. sql/lock.cc: Add late lock_type assertion. sql/sql_base.cc: Possibly downgrade lock type to the the session setting of low_priority_updates and also remove early assertion. |
||
|
unknown
|
409938f22a |
Bug#29936 (Stored Procedure DML ignores low_priority_updates setting)
This is a follow up for the patch for Bug#26162 "Trigger DML ignores low_priority_updates setting", where the stored procedure ignores the session setting of low_priority_updates. For every table open operation with default write (TL_WRITE_DEFAULT) lock_type, downgrade the lock type to the session setting of low_priority_updates. sql/lock.cc: Add late lock_type assertion. sql/sql_base.cc: Possibly downgrade lock type to the the session setting of low_priority_updates and also remove early assertion. |
||
unknown
|
7691bbbfe3 |
Provide initial module structure to Doxygen.
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. |
||
|
unknown
|
c514373cf3 |
Fix doxygen warnings.
client/mysqldump.c: Fix doxygen warnings mysys/test_charset.c: Fix doxygen warnings sql/event_db_repository.cc: Fix doxygen warnings sql/events.cc: Fix doxygen warnings sql/events.h: Fix doxygen warnings sql/item_create.cc: Fix doxygen warnings, style. sql/item_create.h: Fix coding style. sql/item_subselect.cc: Fix doxygen warnings sql/lock.cc: Fix doxygen warnings sql/sp.cc: Fix doxygen warnings sql/sp_head.h: Fix doxygen warnings sql/sql_analyse.cc: Fix doxygen warnings sql/sql_analyse.h: Fix doxygen warnings sql/sql_base.cc: Fix doxygen warnings sql/sql_db.cc: Fix doxygen warnings sql/sql_lex.cc: Fix doxygen warnings sql/sql_lex.h: Fix doxygen warnings sql/sql_parse.cc: Fix doxygen warnings sql/sql_plugin.cc: Fix doxygen warnings sql/sql_prepare.cc: Fix doxygen warnings sql/sql_show.cc: Fix doxygen warnings sql/sql_trigger.cc: Fix doxygen warnings sql/sql_update.cc: Fix doxygen warnings sql/table.h: Fix doxygen warnings |
||
unknown
|
dcf1fd73d9 |
Don't save & restore time fields from thd when it's not needed.
Added back setting of 'some_tables_deleted' to not cause deadlocks in mysql_lock_table() BitKeeper/etc/ignore: added tests/bug25714 sql/lock.cc: Added comment sql/log.cc: Don't save & restore time fields from thd when it's not needed. Fix that we properly detect if open table failed sql/sql_base.cc: Added back setting of 'some_tables_deleted' to not cause deadlocks in mysql_lock_table() |
||
unknown
|
926664fe2c |
Merge bk-internal.mysql.com:/home/bk/mysql-5.1
into mysql.com:/home/my/mysql-5.1 client/client_priv.h: Auto merged client/mysqldump.c: Auto merged client/mysqlslap.c: Auto merged mysql-test/mysql-test-run.pl: Auto merged mysql-test/lib/mtr_report.pl: Auto merged mysql-test/t/disabled.def: Auto merged sql/event_data_objects.cc: Auto merged sql/event_queue.cc: Auto merged sql/ha_partition.cc: Auto merged sql/lock.cc: Auto merged sql/log.cc: Auto merged sql/log.h: Auto merged sql/mysql_priv.h: Auto merged sql/set_var.cc: Auto merged sql/slave.cc: Auto merged sql/sql_class.cc: Auto merged sql/sql_class.h: Auto merged sql/sql_insert.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_plugin.cc: Auto merged sql/sql_select.cc: Auto merged sql-common/client.c: Auto merged sql/sql_show.cc: Auto merged sql/sql_table.cc: Auto merged sql/sql_cache.cc: Manual merge Removed comment about bug in old code (not relevant) |
||
|
unknown
|
2914bad6ac |
Merge bk-internal.mysql.com:/home/bk/mysql-5.1
into bodhi.(none):/opt/local/work/mysql-5.1-runtime client/mysqldump.c: Auto merged mysql-test/r/mysqldump.result: Auto merged mysql-test/t/disabled.def: Auto merged mysql-test/t/mysqldump.test: Auto merged sql/handler.cc: Auto merged sql/lock.cc: Auto merged sql/sql_base.cc: Auto merged sql/sql_lex.cc: Auto merged sql/sql_parse.cc: Auto merged sql/sql_table.cc: Auto merged sql/table.cc: Auto merged sql/table.h: Auto merged mysql-test/include/mix1.inc: Manual merge. mysql-test/r/innodb_mysql.result: Manual merge. |
||
|
unknown
|
4c11e05ad2 |
Merge bodhi.(none):/opt/local/work/mysql-5.0-runtime
into bodhi.(none):/opt/local/work/mysql-5.1-runtime sql/mysql_priv.h: Auto merged sql/sql_class.h: Auto merged sql/sql_lex.cc: Auto merged mysql-test/include/mix1.inc: Manual merge. mysql-test/r/innodb_mysql.result: Manual merge. sql/handler.h: Manual merge. sql/lock.cc: Manual merge. sql/opt_range.cc: Manual merge. sql/sql_base.cc: Manual merge. sql/sql_table.cc: Manual merge. |
||
|
unknown
|
b59217ebbb |
Slow query log to file now displays queries with microsecond precission
--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 |
||
unknown
|
cc5b374566 | Code review changes | ||
|
unknown
|
0936976e8d |
A fix and a test case for Bug#24918 drop table and lock / inconsistent
between perm and temp tables. Review fixes. The original bug report complains that if we locked a temporary table with LOCK TABLES statement, we would not leave LOCK TABLES mode when this temporary table is dropped. Additionally, the bug was escalated when it was discovered than when a temporary transactional table that was previously locked with LOCK TABLES statement was dropped, futher actions with this table, such as UNLOCK TABLES, would lead to a crash. The problem originates from incomplete support of transactional temporary tables. When we added calls to handler::store_lock()/handler::external_lock() to operations that work with such tables, we only covered the normal server code flow and did not cover LOCK TABLES mode. In LOCK TABLES mode, ::external_lock(LOCK) would sometimes be called without matching ::external_lock(UNLOCK), e.g. when a transactional temporary table was dropped. Additionally, this table would be left in the list of LOCKed TABLES. The patch aims to address this inadequacy. Now, whenever an instance of 'handler' is destroyed, we assert that it was priorly external_lock(UNLOCK)-ed. All the places that violate this assert were fixed. This patch introduces no changes in behavior -- the discrepancy in behavior will be fixed when we start calling ::store_lock()/::external_lock() for all tables, regardless whether they are transactional or not, temporary or not. mysql-test/r/innodb_mysql.result: Update test results (Bug#24918) mysql-test/t/innodb_mysql.test: Add a test case for Bug#24918 sql/handler.h: Make handler::external_lock() a protected method. Backport from 5.1 its public wrapper handler::ha_external_lock(). Assert that the handler is not closed if it is still locked. sql/lock.cc: In mysql_lock_tables only call lock_external() for the list of tables that we called store_lock() for. E.g. get_lock_data() does not add non-transactional temporary tables to the lock list, so lock_external() should not be called for them. Use handler::ha_external_lock() instead of handler::external_lock(). Add comments for mysql_lock_remove(), parameterize one strange side effect that it has. At least in one place where mysql_lock_remove is used, this side effect is not desired (DROP TABLE). The parameter will be dropped in 5.1, along with the side effect. sql/mysql_priv.h: Update declaration of mysql_lock_remove(). sql/opt_range.cc: Deploy handler::ha_external_lock() instead of handler::external_lock() sql/sql_base.cc: When closing a temporary table, remove the table from the list of LOCKed TABLES of this thread, in case it's there. It's there if it is a transactional temporary table. Use a new declaration of mysql_lock_remove(). sql/sql_class.h: Extend the comment for THD::temporary_tables. sql/sql_table.cc: Deploy handler::ha_external_lock() instead of handler::external_lock() |
||
|
unknown
|
4462578a1c |
WL#3984 (Revise locking of mysql.general_log and mysql.slow_log)
Bug#25422 (Hang with log tables)
Bug 17876 (Truncating mysql.slow_log in a SP after using cursor locks the
thread)
Bug 23044 (Warnings on flush of a log table)
Bug 29129 (Resetting general_log while the GLOBAL READ LOCK is set causes
a deadlock)
Prior to this fix, the server would hang when performing concurrent
ALTER TABLE or TRUNCATE TABLE statements against the LOG TABLES,
which are mysql.general_log and mysql.slow_log.
The root cause traces to the following code:
in sql_base.cc, open_table()
if (table->in_use != thd)
{
/* wait_for_condition will unlock LOCK_open for us */
wait_for_condition(thd, &LOCK_open, &COND_refresh);
}
The problem with this code is that the current implementation of the
LOGGER creates 'fake' THD objects, like
- Log_to_csv_event_handler::general_log_thd
- Log_to_csv_event_handler::slow_log_thd
which are not associated to a real thread running in the server,
so that waiting for these non-existing threads to release table locks
cause the dead lock.
In general, the design of Log_to_csv_event_handler does not fit into the
general architecture of the server, so that the concept of general_log_thd
and slow_log_thd has to be abandoned:
- this implementation does not work with table locking
- it will not work with commands like SHOW PROCESSLIST
- having the log tables always opened does not integrate well with DDL
operations / FLUSH TABLES / SET GLOBAL READ_ONLY
With this patch, the fundamental design of the LOGGER has been changed to:
- always open and close a log table when writing a log
- remove totally the usage of fake THD objects
- clarify how locking of log tables is implemented in general.
See WL#3984 for details related to the new locking design.
Additional changes (misc bugs exposed and fixed):
1)
mysqldump which would ignore some tables in dump_all_tables_in_db(),
but forget to ignore the same in dump_all_views_in_db().
2)
mysqldump would also issue an empty "LOCK TABLE" command when all the tables
to lock are to be ignored (numrows == 0), instead of not issuing the query.
3)
Internal errors handlers could intercept errors but not warnings
(see sql_error.cc).
4)
Implementing a nested call to open tables, for the performance schema tables,
exposed an existing bug in remove_table_from_cache(), which would perform:
in_use->some_tables_deleted=1;
against another thread, without any consideration about thread locking.
This call inside remove_table_from_cache() was not required anyway,
since calling mysql_lock_abort() takes care of aborting -- cleanly -- threads
that might hold a lock on a table.
This line (in_use->some_tables_deleted=1) has been removed.
sql/handler.cc:
Moved logic for system / log tables in the SQL layer.
sql/handler.h:
Moved logic for system / log tables in the SQL layer.
sql/lock.cc:
Revised locking of log tables
sql/log.cc:
Major cleanup: changed how log tables are locked / written to.
sql/log.h:
Major cleanup: changed how log tables are locked / written to.
sql/mysql_priv.h:
performance schema helpers
sql/slave.cc:
open_ltable() lock flags
sql/sp.cc:
open_ltable() lock flags
sql/sql_acl.cc:
open_ltable() lock flags
sql/sql_class.h:
performance schema helpers
sql/sql_delete.cc:
log tables cleanup in TRUNCATE
sql/sql_error.cc:
Internal handlers can also intercept warnings
sql/sql_insert.cc:
open_ltable() lock flags
sql/sql_parse.cc:
performance schema helpers
sql/sql_plugin.cc:
open_ltable() lock flags
sql/sql_rename.cc:
log tables cleanup in RENAME
sql/sql_servers.cc:
open_ltable() lock flags
sql/sql_show.cc:
Move INFORMATION_SCHEMA_NAME to table.cc
sql/sql_table.cc:
log tables cleanup (admin operations, ALTER TABLE)
sql/sql_udf.cc:
open_ltable() lock flags
sql/table.cc:
Implemented TABLE_CATEGORY.
sql/share/errmsg.txt:
Changed the wording and name of ER_CANT_READ_LOCK_LOG_TABLE
sql/table.h:
Implemented TABLE_CATEGORY.
storage/csv/ha_tina.cc:
Moved logic for system / log tables in the SQL layer.
storage/csv/ha_tina.h:
Moved logic for system / log tables in the SQL layer.
storage/myisam/ha_myisam.cc:
Moved logic for system / log tables in the SQL layer.
storage/myisam/ha_myisam.h:
Moved logic for system / log tables in the SQL layer.
client/mysqldump.c:
Don't lock tables in the ignore list.
Don't issue empty LOCK TABLES queries.
sql/sql_base.cc:
log tables cleanup
performance schema helpers
mysql-test/r/ps.result:
Adjust test results
mysql-test/r/show_check.result:
Adjust test results
mysql-test/r/status.result:
Adjust test results
mysql-test/t/log_state.test:
Added tests for Bug#29129
mysql-test/t/ps.test:
Make the test output deterministic
mysql-test/t/show_check.test:
Make the test output deterministic
mysql-test/r/log_state.result:
Changed the default location of the log output to LOG_FILE,
for backward compatibility with MySQL 5.0
---
Adjust test results
mysql-test/r/log_tables.result:
cleanup for -ps-protocol
mysql-test/t/log_tables.test:
cleanup for -ps-protocol
sql/set_var.cc:
Changed the default location of the log output to LOG_FILE,
for backward compatibility with MySQL 5.0
---
log tables cleanup
|
||
unknown
|
34864af8fd |
Merge mysql.com:/home/svoj/devel/bk/mysql-5.1-engines
into mysql.com:/home/svoj/devel/mysql/BUG29806/mysql-5.1-engines sql/ha_ndbcluster.cc: Auto merged sql/lock.cc: Auto merged |
||
unknown
|
4537a0c9e9 |
BUG#29806 - binlog_innodb.test creates a server log
Stopping mysql server could result in an entry in mysql error file: "InnoDB: Error: MySQL is freeing a thd". This happened because InnoDB assumes that the server will never call external_lock(F_UNLCK) in case external_lock(READ/WRITE) failed. Prior to this patch we haven't had strict definition whether external_lock(F_UNLCK) must be called in case external_lock(READ/WRITE) fails. This patch states that we never call external_lock(F_UNLCK) in case external_lock(READ/WRITE) fails. mysql-test/suite/binlog/t/disabled.def: Re-enabled binlog_innodb and binlog_killed tests. sql/ha_ndbcluster.cc: Restore handler state in case external_lock() failed. sql/ha_partition.cc: Do not call external_lock(F_UNLCK) in case external_lock(READ/WRITE) failed. sql/lock.cc: Do not call external_lock(F_UNLCK) in case external_lock(READ/WRITE) failed. storage/myisammrg/myrg_locking.c: Restore handler state in case external_lock() failed. |
||
unknown
|
1ea806b174 |
Merge jamppa@bk-internal.mysql.com:/home/bk/mysql-maria
into labbari.dsl.inet.fi:/home/my/bk/mysql-maria.prod mysys/thr_lock.c: Auto merged storage/csv/ha_tina.cc: Auto merged storage/csv/ha_tina.h: Auto merged storage/maria/ma_blockrec.c: Auto merged storage/maria/ma_check.c: Auto merged storage/maria/ma_loghandler.c: Auto merged storage/maria/trnman.c: Auto merged storage/myisam/mi_locking.c: Auto merged sql/lock.cc: SCCS merged |