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8 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Sven Sandberg
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1bd213aec3 | Merged BUG#49978 from 5.1-bugteam to 5.5-bugteam. | ||
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Bjorn Munch
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ca2ea5541e |
Bug #58412 mysqltest: allow quoting of strings in let and in if comparison
Stripping quotes in let was a bad idea, will not fix Added code to strip quotes from rhs in comparisons |
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Bjorn Munch
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ef4458af07 | Tests: many if/while expresissons simplified after 57276 | ||
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Alfranio Correia
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20f5c421e7 |
BUG#51894 Replication failure with SBR on DROP TEMPORARY TABLE inside a
transaction
BUG#52616 Temp table prevents switch binlog format from STATEMENT to ROW
Before the WL#2687 and BUG#46364, every non-transactional change that happened
after a transactional change was written to trx-cache and flushed upon
committing the transaction. WL#2687 and BUG#46364 changed this behavior and
non-transactional changes are now written to the binary log upon committing
the statement.
A binary log event is identified as transactional or non-transactional through
a flag in the Log_event which is set taking into account the underlie storage
engine on what it is stems from. In the current bug, this flag was not being
set properly when the DROP TEMPORARY TABLE was executed.
However, while fixing this bug we figured out that changes to temporary tables
should be always written to the trx-cache if there is an on-going transaction.
Otherwise, binlog events in the reversed order would be produced.
Regarding concurrency, keeping changes to temporary tables in the trx-cache is
also safe as temporary tables are only visible to the owner connection.
In this patch, we classify the following statements as unsafe:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
On the other hand, the following statements are classified as safe:
1 - INSERT INTO t_innodb SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_innodb
The patch also guarantees that transactions that have a DROP TEMPORARY are
always written to the binary log regardless of the mode and the outcome:
commit or rollback. In particular, the DROP TEMPORARY is extended with the
IF EXISTS clause when the current statement logging format is set to row.
Finally, the patch allows to switch from STATEMENT to MIXED/ROW when there
are temporary tables but the contrary is not possible.
mysql-test/extra/rpl_tests/rpl_binlog_max_cache_size.test:
Updated the test case because
CREATE TEMPORARY TABLE t_innodb_temp SELECT * FROM t_myisam is not unsafe.
mysql-test/extra/rpl_tests/rpl_implicit_commit_binlog.test:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/extra/rpl_tests/rpl_innodb.test:
Removed comments from the test case that became false after the patch.
mysql-test/extra/rpl_tests/rpl_loaddata.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
mysql-test/include/ctype_utf8_table.inc:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
mysql-test/r/ctype_cp932_binlog_stm.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/r/binlog_database.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/r/binlog_innodb_row.result:
Updated the result file.
mysql-test/suite/binlog/r/binlog_multi_engine.result:
Updated the unsafe message.
mysql-test/suite/binlog/r/binlog_row_binlog.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/r/binlog_row_drop_tmp_tbl.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/r/binlog_row_mix_innodb_myisam.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/r/binlog_stm_binlog.result:
Updated the result file.
mysql-test/suite/binlog/r/binlog_stm_mix_innodb_myisam.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/binlog/t/binlog_tmp_table.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
mysql-test/suite/ndb/r/ndb_binlog_format.result:
Updated the unsafe message.
mysql-test/suite/rpl/r/rpl_concurrency_error.result:
Updated the unsafe message.
mysql-test/suite/rpl/r/rpl_mixed_binlog_max_cache_size.result:
Updated the result file because
CREATE TEMPORARY TABLE t_innodb_temp SELECT * FROM t_myisam is not unsafe.
mysql-test/suite/rpl/r/rpl_mixed_implicit_commit_binlog.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_mixed_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_mixed_row_innodb.result:
Added some comments to ease the understanding of the result file.
mysql-test/suite/rpl/r/rpl_non_direct_mixed_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_non_direct_row_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_non_direct_stm_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_row_drop.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_row_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_stm_binlog_max_cache_size.result:
Updated the result file because
CREATE TEMPORARY TABLE t_innodb_temp SELECT * FROM t_myisam is not unsafe.
mysql-test/suite/rpl/r/rpl_stm_implicit_commit_binlog.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_stm_innodb.result:
Added some comments to ease the understanding of the result file.
mysql-test/suite/rpl/r/rpl_stm_mixing_engines.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl/r/rpl_stm_stop_middle_group.result:
Updated the unsafe message.
mysql-test/suite/rpl/r/rpl_temp_temporary.result:
Added a test case.
mysql-test/suite/rpl/t/rpl000013.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
mysql-test/suite/rpl/t/rpl_misc_functions.test:
Suppressed warning messages.
mysql-test/suite/rpl/t/rpl_temp_table.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
mysql-test/suite/rpl/t/rpl_temp_temporary.test:
Added a test case.
mysql-test/suite/rpl/t/rpl_temporary.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
mysql-test/suite/rpl_ndb/r/rpl_ndb_row_implicit_commit_binlog.result:
Updated the test case due to the new rules: changes to
temporary tables are written to the binary log in the
boundaries of a transaction if there is any.
mysql-test/suite/rpl_ndb/r/rpl_truncate_7ndb.result:
Updated the test case to remove references to positions
in the binary log.
mysql-test/suite/rpl_ndb/t/rpl_truncate_7ndb.test:
Updated the test case to remove references to positions
in the binary log.
mysql-test/t/create_select_tmp.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
mysql-test/t/ctype_cp932_binlog_stm.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
mysql-test/t/mysqlbinlog.test:
Suppressed warning messages due to the following cases:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
3 - CREATE TEMPORARY TABLE t_myisam_temp SELECT * FROM t_myisam
sql/log.cc:
Improved the code by creating several functions to hide decision
on type of engine changed, commit/abort, etc:
. stmt_has_updated_non_trans_table
. trans_has_updated_non_trans_table
. ending_trans
Updated the binlog_rollback function and the use of the
OPTION_KEEP_LOG which indincates when a temporary table was
either created or dropped and as such the command must be
logged if not in MIXED mode and even while rolling back the
transaction.
sql/log.h:
Improved the code by creating several functions to hide decision
on type of engine changed, commit/abort, etc.
sql/log_event.cc:
Removed the setting of the OPTION_KEEP_LOG as it is related to CREATE
TEMPORARY and DROP TEMPORARY and not to the type of engine (i.e.
transactional or non-transactional).
sql/log_event_old.cc:
Removed the setting of the OPTION_KEEP_LOG as it is related to CREATE
TEMPORARY and DROP TEMPORARY and not to the type of engine (i.e.
transactional or non-transactional).
sql/share/errmsg-utf8.txt:
Updated the unsafe message.
sql/sql_class.cc:
Classifies the following statements as unsafe:
1 - INSERT INTO t_myisam SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_myisam
On the other hand, the following statements are classified as safe:
1 - INSERT INTO t_innodb SELECT * FROM t_myisam_temp
2 - INSERT INTO t_myisam_temp SELECT * FROM t_innodb
sql/sql_class.h:
It allows to switch from STATEMENT to MIXED/ROW when there are temporary
tables but the contrary is not possible.
sql/sql_table.cc:
Fixed the case that a DROP/DROP TEMPORARY that affects a temporary table in MIXED
mode is written as a DROP TEMPORARY TABLE IF EXISTS because the table may not exist in the slave and due to the IF EXISTS token an error will never happen
while processing the statement in the slave.
Removed a function that was not being used.
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Alexander Nozdrin
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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. |
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Alfranio Correia
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4677f4de0f |
Post-fix for WL#2687 WL#5072 BUG#40278 BUG#47175
Create a set of test cases to see if some DDL statements implicitly commit a transaction on the NDB and are written directly to the binary log without going through either the Statement- or Transactional-Cache. |
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Alfranio Correia
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6ed2c82436 |
Post-fix for merge mysql-5.1-rep+2 --> mysql-5.1-rep+3
mysql-test/extra/rpl_tests/rpl_implicit_commit_binlog.test: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/r/rpl_mixed_implicit_commit_binlog.result: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/r/rpl_mysql_upgrade.result: Suppressed warning messages due to unsafe statements. mysql-test/suite/rpl/r/rpl_row_implicit_commit_binlog.result: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/r/rpl_stm_implicit_commit_binlog.result: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/t/rpl_mixed_implicit_commit_binlog.test: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/t/rpl_mysql_upgrade.test: Suppressed warning messages due to unsafe statements. mysql-test/suite/rpl/t/rpl_row_implicit_commit_binlog.test: Re-enabled some parts of the test after BUG#46572 mysql-test/suite/rpl/t/rpl_stm_implicit_commit_binlog.test: Re-enabled some parts of the test after BUG#46572 |
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Alfranio Correia
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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. |