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

buf_flush_LRU_list_batch() accounts flushed pages multiple times

Bug #1234029 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
Fix Released
Medium
Laurynas Biveinis
Percona Server moved to https://jira.percona.com/projects/PS 5.6.13-61.0
5.1
Invalid
Undecided
Unassigned
5.5
Invalid
Undecided
Unassigned
5.6
Fix Released
Medium
Laurynas Biveinis
Percona Server moved to https://jira.percona.com/projects/PS 5.6.13-61.0

Bug Description

buf_flush_LRU_list_batch gets the number of flushed pages in local count variable, which is not reset before each call. Thus count becomes running total instead of a last batch. Then it gets added to other variables that were supposed to count the running total, greatly inflating their values.

A regression in https://code.launchpad.net/~laurynas-biveinis/percona-server/xtradb-cleaner-tuning-5.6/+merge/188368.

Tags: xtradb

Related branches

lp:~laurynas-biveinis/percona-server/bug1234029
Sergei Glushchenko (community): Approve (g2)
Diff: 49 lines (+3/-7)
1 file modified
Percona-Server/storage/innobase/buf/buf0flu.cc (+3/-7)
Laurynas Biveinis (laurynas-biveinis)
tags: added: xtradb
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-1427

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