Percona Server moved to https://jira.percona.com/projects/PS

THREAD_STATISTICS.CONCURRENT_CONNECTIONS does not make sense

Bug #1637154 reported by Laurynas Biveinis
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Percona Server moved to https://jira.percona.com/projects/PS
Status tracked in 5.7
5.5
Fix Released
Low
Hrvoje Matijakovic
5.6
Fix Released
Low
Hrvoje Matijakovic
5.7
Fix Released
Low
Hrvoje Matijakovic

Bug Description

Based on bug 1082334:

INFORMATION_SCHEMA.THREAD_STATISTICS.CONCURRENT_CONNECTIONS is documented as "The number of concurrent connections from this thread.", which is by definition always one. (maybe zero if disconnected threads are accounted too, and maybe even more than one for threadpool, but that's not sane). In practice it is always zero by code review (similar to bug 728082).

Document this field as "always zero, will be removed in a future version", and remove it in 8.0.

Tags: doc userstat
Laurynas Biveinis (laurynas-biveinis)
tags: added: doc userstat
Revision history for this message
Hrvoje Matijakovic (hrvojem) wrote :

https://github.com/percona/percona-server/pull/1151
https://github.com/percona/percona-server/pull/1155
https://github.com/percona/percona-server/pull/1156

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/PS-2211

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