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ID# Date Updated Type Status Sev Version OS CPU Summary
676432012-11-20
1:22
2013-04-03
9:58
MySQL Server: Command-line ClientsClosed
(3332 days)
S45.6AnyAnyIncrease mysqlbinlog version (3.4 or something higher than 3.3) in MySQL 5.6
702472013-09-05
6:21
2015-10-08
13:03
MySQL Server: OptimizerClosed
(2422 days)
S451.71,5.5.33, 5.6.13, 5.5.23AnyAnyUsing many WHERE conditions makes range scan disabled
750312014-11-28
2:41
2014-11-28
2:41
MySQL Server: InnoDB storage engineOpenS45.6AnyAnyRequest to port reduced doublewrite patch from WebScaleSQL
685662013-03-05
0:50
2022-03-06
15:12
MySQL Server: Command-line ClientsVerified
(3346 days)
S45.6.10, 8.0AnyAnymysqlbinlog should be more friendly with GTID
1012002020-10-16
3:25
2020-10-17
1:19
MySQL Server: InnoDB storage engineVerified
(579 days)
S58.0AnyAnyAll commits are unnecessarily blocked for more than 1ms at binlog rotate
711302013-12-11
20:43
2013-12-17
17:35
MySQL Server: ReplicationVerified
(3074 days)
S55.6.15AnyAny5.6 SQL thread is much slower than 5.1/5.5
707682013-10-29
22:41
2018-02-15
5:32
MySQL Server: InnoDB storage engineClosed
(3036 days)
S55.6.14AnyAnyPersistent optimizer statistics often causes LOCK_open stalls
752482014-12-17
14:59
2015-08-26
14:11
MySQL Server: OptimizerClosed
(2457 days)
S55.6.22, 5.6.23, 5.7.6, 5.5.43AnyAnyOR conditions on multi-column index may not use all index columns to filter rows
1059242021-12-16
20:40
2022-03-07
6:10
MySQL Server: ReplicationVerified
(114 days)
S58.0.22, 8.0.27AnyAnySHOW SLAVE STATUS became expensive for Replica->Slave column name conversions
703422013-09-13
22:18
2013-09-21
15:44
MySQL Server: ReplicationVerified
(3161 days)
S55.6.13AnyAnymaster_info_repository=FILE calls my_b_printf too often
702652013-09-06
18:10
2015-08-23
20:45
MySQL Server: PartitionsVerified
(3173 days)
S55.6.13AnyAnyOptimizer under-estimates rows when there are many unmatched partitions
702182013-09-02
21:42
2014-03-28
19:21
MySQL Server: ReplicationClosed
(3033 days)
S55.6.13AnyAnySemisync master plugin with many slaves causes plugin_lock mutex contentions
701722013-08-28
4:37
2013-10-29
11:50
MySQL Server: InnoDB storage engineClosed
(3123 days)
S55.6.13AnyAnytrx_create() and trx_free() are called at every memcached get request
693412013-05-29
0:55
2016-04-07
5:46
MySQL Server: ReplicationClosed
(3239 days)
S55.6.11AnyAnysemi-sync replication is very slow with many clients
693162013-05-24
23:50
2013-07-05
15:56
MySQL Server: InnoDB storage engineClosed
(3239 days)
S55.6.11AnyAnyDrop/Alter table takes much longer time in 5.6 than 5.5
686592013-03-13
7:47
2013-03-13
9:01
MySQL Server: InnoDB storage engineAnalyzing
(3353 days)
S55.6.10AnyAnyInnoDB Linux native aio should submit more i/o requests at once
682812013-02-05
23:19
2013-03-07
15:01
MySQL Server: DocumentationNot a Bug
(3359 days)
S55.6.10AnyAnysync_master_info=1 kills slave MTS concurrency
680772013-01-14
3:37
2013-04-03
11:33
MySQL Server: InnoDB storage engineClosed
(3332 days)
S55.6AnyAnyMixing 4K/16K blocks increases 8K free blocks and holds buf pool mutex longer
670442012-10-02
0:21
2012-12-29
16:37
MySQL Server: InnoDB Plugin storage engineClosed
(3427 days)
S55.1, 5.5, 5.6AnyAnySecondary index updates make consistent reads do O(N^2) undo page lookups
665672012-08-28
7:57
2012-11-13
18:32
MySQL Server: Security: PrivilegesClosed
(3473 days)
S55.6.6, 5.6.7AnyAnymy_rnd_ssl() is very expensive for authentication
694932013-06-17
17:53
2018-09-25
21:51
Tests: ReplicationDuplicate
(3256 days)
S75.6.12AnyAnySlave deadlock by show slave status, global read lock and slave_master_info
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