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

buf_LRU_buf_pool_running_out() does not need to lock any mutexes

Bug #1219842 reported by Laurynas Biveinis on 2013-09-02

This bug affects 1 person

	Status	Importance	Assigned to	Milestone
MySQL Server	Unknown	Unknown	mysql-bugs #69258
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 5.6.13-60.6
5.1	Won't Fix	Undecided	Unassigned
5.5	Triaged	Medium	Unassigned
5.6	Fix Released	Medium	Laurynas Biveinis	Percona Server moved to https://jira.percona.com/projects/PS 5.6.13-60.6

Bug Description

This is to track fixing of http://bugs.mysql.com/bug.php?id=69258 for Percona Server.

buf_LRU_buf_pool_running_out() acquires buffer pool mutex in upstream, and LRU/free list mutexes in XtraDB. This is not really required, because the function compares the sum of LRU and free list lens with 1/4 of buffer pool size for heuristic purposes. Dirty reads are OK for this.

Tags: