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Author SHA1 Message Date
Sergei Golubchik
75908fc4ce BUG#13627921 - MISSING FLAGS IN SQL_COMMAND_FLAGS MAY LEAD TO REPLICATION PROBLEMS 
merge from MySQL-5.6, revision:

revno: 3677.2.1
committer: Alfranio Correia <alfranio.correia@oracle.com>
timestamp: Tue 2012-02-28 16:26:37 +0000
message:
  BUG#13627921 - MISSING FLAGS IN SQL_COMMAND_FLAGS MAY LEAD TO REPLICATION PROBLEMS

  Flags in sql_command_flags[command] are not correctly set for the following
  commands:

    . SQLCOM_SET_OPTION is missing CF_CAN_GENERATE_ROW_EVENTS;
    . SQLCOM_BINLOG_BASE64_EVENT is missing CF_CAN_GENERATE_ROW_EVENTS;
    . SQLCOM_REVOKE_ALL is missing CF_CHANGES_DATA;
    . SQLCOM_CREATE_FUNCTION is missing CF_AUTO_COMMIT_TRANS;

  This may lead to a wrong sequence of events in the binary log. To fix
  the problem, we correctly set the flags in sql_command_flags[command].
 2014-09-30 15:55:02 +02:00
Sergei Golubchik
33fb79773d mark rpl_mixing_engines.test and everything that includes it a BIG test 2012-10-29 23:52:47 +01:00
Sergei Golubchik
474fe6d9d9 fixes for test failures 
and small collateral changes

mysql-test/lib/My/Test.pm:
  somehow with "print" we get truncated writes sometimes
mysql-test/suite/perfschema/r/digest_table_full.result:
  md5 hashes of statement digests differ, because yacc token codes are different in mariadb
mysql-test/suite/perfschema/r/dml_handler.result:
  host table is not ported over yet
mysql-test/suite/perfschema/r/information_schema.result:
  host table is not ported over yet
mysql-test/suite/perfschema/r/nesting.result:
  this differs, because we don't rewrite general log queries, and multi-statement
  packets are logged as a one entry. this result file is identical to what mysql-5.6.5
  produces with the --log-raw option.
mysql-test/suite/perfschema/r/relaylog.result:
  MariaDB modifies the binlog index file directly, while MySQL 5.6 has a feature "crash-safe binlog index" and modifies a special "crash-safe" shadow copy of the index file and then moves it over. That's why this test shows "NONE" index file writes in MySQL and "MANY" in MariaDB.
mysql-test/suite/perfschema/r/server_init.result:
  MariaDB initializes the "manager" resources from the "manager" thread, and starts this thread only when --flush-time is not 0. MySQL 5.6 initializes "manager" resources unconditionally on server startup.
mysql-test/suite/perfschema/r/stage_mdl_global.result:
  this differs, because MariaDB disables query cache when query_cache_size=0. MySQL does not
  do that, and this causes useless mutex locks and waits.
mysql-test/suite/perfschema/r/statement_digest.result:
  md5 hashes of statement digests differ, because yacc token codes are different in mariadb
mysql-test/suite/perfschema/r/statement_digest_consumers.result:
  md5 hashes of statement digests differ, because yacc token codes are different in mariadb
mysql-test/suite/perfschema/r/statement_digest_long_query.result:
  md5 hashes of statement digests differ, because yacc token codes are different in mariadb
mysql-test/suite/rpl/r/rpl_mixed_drop_create_temp_table.result:
  will be updated to match 5.6 when alfranio.correia@oracle.com-20110512172919-c1b5kmum4h52g0ni and anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y are merged
mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result:
  will be updated to match 5.6 when anders.song@greatopensource.com-20110105052107-zoab0bsf5a6xxk2y is merged
 2012-09-27 20:09:46 +02:00
Sven Sandberg
cf5ebc5821 BUG#50670: Slave stops with error code 1644 
Clarified error messages related to unsafe statements:
 - avoid the internal technical term "row injection"
 - use 'binary log' instead of 'binlog'
 - avoid the word 'unsafeness'


mysql-test/extra/binlog_tests/blackhole.test:
  updated suppression pattern
mysql-test/extra/binlog_tests/mix_innodb_myisam_binlog.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_binlog_max_cache_size.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_insert_id.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_loaddata.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_mixing_engines.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_start_stop_slave.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_stm_000001.test:
  updated suppression pattern
mysql-test/extra/rpl_tests/rpl_stop_middle_group.test:
  updated suppression pattern
mysql-test/r/archive.result:
  updated result file
mysql-test/r/commit_1innodb.result:
  updated result file
mysql-test/r/ctype_cp932_binlog_stm.result:
  updated result file
mysql-test/r/partition_innodb_stmt.result:
  updated result file
mysql-test/suite/binlog/r/binlog_innodb.result:
  updated result file
mysql-test/suite/binlog/r/binlog_killed.result:
  updated result file
mysql-test/suite/binlog/r/binlog_multi_engine.result:
  updated result file
mysql-test/suite/binlog/r/binlog_row_mix_innodb_myisam.result:
  updated result file
mysql-test/suite/binlog/r/binlog_statement_insert_delayed.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_blackhole.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_do_db.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_ps.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_row.result:
  updated result file
mysql-test/suite/binlog/r/binlog_stm_unsafe_warning.result:
  updated result file
mysql-test/suite/binlog/r/binlog_unsafe.result:
  updated result file
mysql-test/suite/binlog/t/binlog_killed.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_multi_engine.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_statement_insert_delayed.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_stm_ps.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_stm_row.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_stm_unsafe_warning.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_tmp_table.test:
  updated suppression pattern
mysql-test/suite/binlog/t/binlog_unsafe.test:
  updated suppression pattern
mysql-test/suite/ndb/r/ndb_binlog_format.result:
  updated result file
mysql-test/suite/ndb/t/ndb_binlog_format.test:
  updated suppression pattern
mysql-test/suite/perfschema/r/binlog_stmt.result:
  updated result file
mysql-test/suite/perfschema/t/binlog_stmt.test:
  updated suppression pattern
mysql-test/suite/rpl/r/rpl_begin_commit_rollback.result:
  updated result file
mysql-test/suite/rpl/r/rpl_blackhole.result:
  updated result file
mysql-test/suite/rpl/r/rpl_concurrency_error.result:
  updated result file
mysql-test/suite/rpl/r/rpl_get_lock.result:
  updated result file
mysql-test/suite/rpl/r/rpl_insert_id.result:
  updated result file
mysql-test/suite/rpl/r/rpl_insert_ignore.result:
  updated result file
mysql-test/suite/rpl/r/rpl_misc_functions.result:
  updated result file
mysql-test/suite/rpl/r/rpl_mixed_binlog_max_cache_size.result:
  updated result file
mysql-test/suite/rpl/r/rpl_mixed_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_mysql_upgrade.result:
  updated result file
mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_non_direct_row_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_non_direct_stm_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_nondeterministic_functions.result:
  updated result file
mysql-test/suite/rpl/r/rpl_read_only.result:
  updated result file
mysql-test/suite/rpl/r/rpl_row_binlog_max_cache_size.result:
  updated result file
mysql-test/suite/rpl/r/rpl_row_inexist_tbl.result:
  updated result file
mysql-test/suite/rpl/r/rpl_row_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_slow_query_log.result:
  updated result file
mysql-test/suite/rpl/r/rpl_sp.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_000001.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_auto_increment_bug33029.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_binlog_max_cache_size.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_loadfile.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_mixing_engines.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_start_stop_slave.result:
  updated result file
mysql-test/suite/rpl/r/rpl_stm_stop_middle_group.result:
  updated result file
mysql-test/suite/rpl/r/rpl_temp_temporary.result:
  updated result file
mysql-test/suite/rpl/r/rpl_variables_stm.result:
  updated result file
mysql-test/suite/rpl/t/rpl000013.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_begin_commit_rollback.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_blackhole.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_concurrency_error.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_err_ignoredtable.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_get_lock.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_insert.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_insert_id.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_insert_ignore.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_invoked_features.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_misc_functions.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_mixed_bit_pk.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_mysql_upgrade.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_nondeterministic_functions.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_optimize.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_read_only.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_semi_sync.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_semi_sync_event.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_session_var.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_slow_query_log.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_sp.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_stm_auto_increment_bug33029.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_stm_found_rows.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_stm_insert_delayed.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_stm_loadfile.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_temp_table.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_temp_temporary.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_temporary.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_timezone.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_trigger.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_udf.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_user_variables.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_variables_stm.test:
  updated suppression pattern
mysql-test/suite/rpl/t/rpl_view_multi.test:
  updated suppression pattern
mysql-test/suite/rpl_ndb/r/rpl_ndb_binlog_format_errors.result:
  updated result file
mysql-test/suite/rpl_ndb/t/rpl_ndb_binlog_format_errors.test:
  updated suppression pattern
mysql-test/suite/rpl_ndb/t/rpl_ndb_stm_innodb.test:
  updated suppression pattern
mysql-test/suite/sys_vars/t/rpl_init_slave_func.test:
  updated suppression pattern
mysql-test/t/archive.test:
  updated suppression pattern
mysql-test/t/commit_1innodb.test:
  updated suppression pattern
mysql-test/t/create_select_tmp.test:
  updated suppression pattern
mysql-test/t/ctype_cp932_binlog_stm.test:
  updated suppression pattern
mysql-test/t/lock_sync.test:
  updated suppression pattern
mysql-test/t/mysqlbinlog.test:
  updated suppression pattern
mysql-test/t/mysqldump.test:
  updated suppression pattern
mysql-test/t/sp_trans.test:
  updated suppression pattern
sql/log_event.cc:
  Clarified error message.
sql/share/errmsg-utf8.txt:
  Clarified error messages.
 2010-04-28 14:47:49 +02:00
Alfranio Correia
41c642e634 BUG#51291 Unfortunate effect around variable binlog_direct_non_transactional_updates 
BUG#46364 introduced the flag binlog_direct_non_transactional_updates which
would make N-changes to be written to the binary log upon committing the
statement when "ON". On the other hand, when "OFF" the option was supposed
to mimic the behavior in 5.1. However, the implementation was not mimicking
the behavior correctly and the following bugs popped up:

  Case #1: N-changes executed within a transaction would go into
           the S-cache. When later in the same transaction a
           T-change occurs, N-changes following it were written
           to the T-cache instead of the S-cache. In some cases,
           this raises problems. For example, a
           Table_map_log_event being written initially into the
           S-cache, together with the initial N-changes, would be
           absent from the T-cache. This would log N-changes
           orphaned from a Table_map_log_event (thence discarded
           at the slave). (MIXED and ROW)

   Case #2: When rolling back a transaction, the N-changes that
            might be in the T-cache were disregarded and
            truncated along with the T-changes. (MIXED and ROW)

   Case #3: When a MIXED statement (TN) is ahead of any other
            T-changes in the transaction and it fails, it is kept
            in the T-cache until the transaction ends. This is
            not the case in 5.1 or Betony (5.5.2). In these, the
            failed TN statement would be written to the binlog at
            the same instant it had failed and not deferred until
            transaction end. (SBR)

To fix these problems, we have decided to do what follows:

   For Case #1 and #2, we circumvent them:

      1. by not letting binlog_direct_non_transactional_updates
         affect MIXED and RBR. These modes will keep the behavior
         provided by WL#2687. Although this will make Celosia to
         behave differently from 5.1, an execution will be always
         safe under such modes in the sense that slaves will never
         go out sync. In 5.1, using either MIXED or ROW while
         mixing N-statements and T-statements was not safe.

   For Case #3, we don't actually fix it. We:

      1. keep it and make all MIXED statements whether they end
         up failing or not or whether they are up front in the
         transaction or after some transactional change to always
         be stored in the T-cache. This means that it is written
         to the binary log on transaction commit/rollback only.

      2. We make the warning message even more specific about the
         MIXED statement and SBR.

mysql-test/extra/rpl_tests/rpl_mixing_engines.test:
  Updated the test case to avoid checking inconsistencies between the master and slave
  when session.binlog_direct_non_transactional_updates is ON and the format is statement.
  
  In this scenario, they will diverge because a counter (within a triger) is incremented
  and associated to the issued statement. However, an n-statement is logged ahead of
  the transaction and thus is not executed by the same order in the slave and thus gets
  a different value from the counter.
mysql-test/suite/binlog/r/binlog_multi_engine.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/ndb/r/ndb_binlog_format.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/rpl/r/rpl_concurrency_error.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/rpl/r/rpl_stm_binlog_max_cache_size.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/rpl/r/rpl_stm_mixing_engines.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
mysql-test/suite/rpl/r/rpl_stm_stop_middle_group.result:
  Updated the test case with the new error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
sql/log.cc:
  Checked if either a trx-cache or a non-trx-cache should be used. 
  
  If bin_log_direct_non_trans_update is active or the format is either
  MIXED or ROW, the cache to be used depends on the flag is_transactional.
  
  When the format is STMT, the non-trx-cache should be used if the statement
  is non-transactional and the trx-cache is empty, i.e. if any transactional
  statement has not committed yet. Otherwise, the trx-cache should be used.
sql/share/errmsg-utf8.txt:
  Added the new unsafe error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
sql/sql_class.cc:
  Started printing ER_BINLOG_UNSAFE_MIXED_STATEMENT, when there
  is a mixed-statement.
  
  Organized the names of the variables and added comments.
sql/sql_lex.cc:
  Added the new unsafe error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
sql/sql_lex.h:
  Added the new unsafe error ER_BINLOG_UNSAFE_MIXED_STATEMENT.
 2010-03-31 14:22:47 +01:00
Alexander Nozdrin
6f95733406 Manual merge of patch for Bug#46364 from mysql-next-mr-bugfixing. 
Conflicts:
  - mysql-test/r/mysqld--help-win.result
  - sql/sys_vars.cc

Original revsion (in next-mr-bugfixing):
------------------------------------------------------------
revno: 2971 [merge]
revision-id: alfranio.correia@sun.com-20100121210527-rbuheu5rnsmcakh1
committer: Alfranio Correia <alfranio.correia@sun.com>
branch nick: mysql-next-mr-bugfixing
timestamp: Thu 2010-01-21 21:05:27 +0000
message:
  BUG#46364 MyISAM transbuffer problems (NTM problem)
        
  It is well-known that due to concurrency issues, a slave can become
  inconsistent when a transaction contains updates to both transaction and
  non-transactional tables.
                      
  In a nutshell, the current code-base tries to preserve causality among the
  statements by writing non-transactional statements to the txn-cache which
  is flushed upon commit. However, modifications done to non-transactional
  tables on behalf of a transaction become immediately visible to other
  connections but may not immediately get into the binary log and therefore
  consistency may be broken.
              
  In general, it is impossible to automatically detect causality/dependency
  among statements by just analyzing the statements sent to the server. This
  happen because dependency may be hidden in the application code and it is
  necessary to know a priori all the statements processed in the context of
  a transaction such as in a procedure. Moreover, even for the few cases that
  we could automatically address in the server, the computation effort
  required could make the approach infeasible.
              
  So, in this patch we introduce the option
        - "--binlog-direct-non-transactional-updates" that can be used to bypass
        the current behavior in order to write directly to binary log statements
        that change non-transactional tables.
  
  Besides, it is used to enable the WL#2687 which is disabled by default.
    ------------------------------------------------------------
    revno: 2970.1.1
    revision-id: alfranio.correia@sun.com-20100121131034-183r4qdyld7an5a0
    parent: alik@sun.com-20100121083914-r9rz2myto3tkdya0
    committer: Alfranio Correia <alfranio.correia@sun.com>
    branch nick: mysql-next-mr-bugfixing
    timestamp: Thu 2010-01-21 13:10:34 +0000
    message:
      BUG#46364 MyISAM transbuffer problems (NTM problem)
            
      It is well-known that due to concurrency issues, a slave can become
      inconsistent when a transaction contains updates to both transaction and
      non-transactional tables.
                          
      In a nutshell, the current code-base tries to preserve causality among the
      statements by writing non-transactional statements to the txn-cache which
      is flushed upon commit. However, modifications done to non-transactional
      tables on behalf of a transaction become immediately visible to other
      connections but may not immediately get into the binary log and therefore
      consistency may be broken.
                  
      In general, it is impossible to automatically detect causality/dependency
      among statements by just analyzing the statements sent to the server. This
      happen because dependency may be hidden in the application code and it is
      necessary to know a priori all the statements processed in the context of
      a transaction such as in a procedure. Moreover, even for the few cases that
      we could automatically address in the server, the computation effort
      required could make the approach infeasible.
                  
      So, in this patch we introduce the option
            - "--binlog-direct-non-transactional-updates" that can be used to bypass
            the current behavior in order to write directly to binary log statements
            that change non-transactional tables.
      
      Besides, it is used to enable the WL#2687 which is disabled by default.
 2010-02-02 10:56:42 +03:00
Alfranio Correia
518f793265 Post-fix after mysql-5.1-rep+2 --> mysql-5.1-rep+3. 
mysql-test/extra/binlog_tests/binlog_failure_mixing_engines.test:
  Merged the test case into rpl_mixing_engines.test.
mysql-test/extra/rpl_tests/rpl_mixing_engines.inc:
  Incorporated some tests from binlog_failure_mixing_engines.test and
  fixed after BUG#47323.
mysql-test/extra/rpl_tests/rpl_mixing_engines.test:
  Incorporated some tests from binlog_failure_mixing_engines.test and
  fixed after BUG#47323.
mysql-test/suite/binlog/r/binlog_mixed_failure_mixing_engines.result:
  Merged the test case into rpl_mixing_engines.test.
mysql-test/suite/binlog/r/binlog_row_failure_mixing_engines.result:
  Merged the test case into rpl_mixing_engines.test.
mysql-test/suite/binlog/t/binlog_mixed_failure_mixing_engines.test:
  Merged the test case into rpl_mixing_engines.test.
mysql-test/suite/binlog/t/binlog_row_failure_mixing_engines.test:
  Merged the test case into rpl_mixing_engines.test.
mysql-test/suite/rpl/r/rpl_mixed_mixing_engines.result:
  Incorporated some tests from binlog_failure_mixing_engines.test and
  changed after BUG#47323.
mysql-test/suite/rpl/r/rpl_row_mixing_engines.result:
  Incorporated some tests from binlog_failure_mixing_engines.test and
  changed after BUG#47323.
mysql-test/suite/rpl/r/rpl_stm_mixing_engines.result:
  Incorporated some tests from binlog_failure_mixing_engines.test and
  changed after BUG#47323.
 2009-11-11 16:35:58 +00:00
Alfranio Correia
19c380aaff WL#2687 WL#5072 BUG#40278 BUG#47175 
Non-transactional updates that take place inside a transaction present problems
for logging because they are visible to other clients before the transaction
is committed, and they are not rolled back even if the transaction is rolled
back. It is not always possible to log correctly in statement format when both
transactional and non-transactional tables are used in the same transaction.

In the current patch, we ensure that such scenario is completely safe under the
ROW and MIXED modes.
 2009-11-03 19:02:56 +00:00
Alfranio Correia
354f5f7bac BUG#46864 Incorrect update of InnoDB table on slave when using trigger with myisam table 
Slave does not correctly handle "expected errors" leading to inconsistencies
between the mater and slave. Specifically, when a statement changes both
transactional and non-transactional tables, the transactional changes are
automatically rolled back on the master but the slave ignores the error and
does not roll them back thus leading to inconsistencies.
      
To fix the problem, we automatically roll back a statement that fails on
the slave but note that the transaction is not rolled back unless a "rollback"
command is in the relay log file.

mysql-test/extra/rpl_tests/rpl_mixing_engines.test:
  Enabled item 13.e which was disabled because of the bug fixed by the
  current and removed item 14 which was introduced by mistake.
 2009-08-27 13:46:29 +01:00
Alfranio Correia
6c2b32515e BUG#28976 Mixing trans and non-trans tables in one transaction results in incorrect 
binlog

Mixing transactional (T) and non-transactional (N) tables on behalf of a
transaction may lead to inconsistencies among masters and slaves in STATEMENT
mode. The problem stems from the fact that although modifications done to
non-transactional tables on behalf of a transaction become immediately visible
to other connections they do not immediately get to the binary log and therefore
consistency is broken. Although there may be issues in mixing T and M tables in
STATEMENT mode, there are safe combinations that clients find useful.

In this bug, we fix the following issue. Mixing N and T tables in multi-level
(e.g. a statement that fires a trigger) or multi-table table statements (e.g.
update t1, t2...) were not handled correctly. In such cases, it was not possible
to distinguish when a T table was updated if the sequence of changes was N and T.
In a nutshell, just the flag "modified_non_trans_table" was not enough to reflect
that both a N and T tables were changed. To circumvent this issue, we check if an
engine is registered in the handler's list and changed something which means that
a T table was modified.

Check WL 2687 for a full-fledged patch that will make the use of either the MIXED or
ROW modes completely safe.

mysql-test/suite/binlog/r/binlog_row_mix_innodb_myisam.result:
  Truncate statement is wrapped in BEGIN/COMMIT.
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
  Truncate statement is wrapped in BEGIN/COMMIT.
 2009-08-27 00:13:03 +01:00