MySQL patches by Codership

thd->db may get reset during transaction replay

Bug #1241760 reported by Teemu Ollakka
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
MySQL patches by Codership
Status tracked in 5.6
5.5
Fix Released
High
Teemu Ollakka
MySQL patches by Codership 5.5.34-25.9
5.6
Fix Released
High
Teemu Ollakka
MySQL patches by Codership 5.6.14-25.1
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC
Status tracked in 5.6
5.5
Fix Released
Undecided
Unassigned
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC 5.5.34-23.7.6
5.6
Fix Released
Undecided
Unassigned
Percona XtraDB Cluster moved to https://jira.percona.com/projects/PXC 5.6.14-25.1

Bug Description

Handling Query_log_event resets thd->db pointer (see Query_log_event::do_apply_event). Therefore if IO cache contains Query_log_event, thd->db will be reset during transaction replay.

This may generate "1046 No database selected." when next statement is issued.

See original description
Teemu Ollakka (teemu-ollakka)
description: updated
Revision history for this message
Teemu Ollakka (teemu-ollakka) wrote :

Fixes pushed:
5.5-23: http://bazaar.launchpad.net/~codership/codership-mysql/5.5-23/revision/3934
5.5: http://bazaar.launchpad.net/~codership/codership-mysql/wsrep-5.5/revision/3911
5.6: http://bazaar.launchpad.net/~codership/codership-mysql/5.6/revision/3892

Revision history for this message
Teemu Ollakka (teemu-ollakka) wrote :

Correct revision for 5.6: http://bazaar.launchpad.net/~codership/codership-mysql/5.6/revision/3992

Revision history for this message
Shahriyar Rzayev (rzayev-sehriyar) wrote :

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1480

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