CentOS 6 init script check_running() reports PID of LXC instance

[Mark Carbonaro]

When running PXC (possible standard Percona Server also) on a LXC host machine instances of mysqld will be found running in the check_running() function of the init script when run on CentOS 6.

This is due to the pidof command being used without the '-c' option, when run with that option the init script no longer finds the mysqld process running in the LXC container and starts correctly.

I'm not sure if this is the correct solution but certainly resolved the issue for my installation, attached is the patch I used.

[Nilnandan Joshi (nilnandan-joshi)]

Hi, I can see in your patch that, you have removed -c option

- mysqld_pid=`pidof -c $libexecdir/mysqld`
+ mysqld_pid=`pidof $libexecdir/mysqld`

But, in the latest version of PXC 5.6.22, I don't see -c option with pidof command.

[root@percona-pxc56-2 mysql]# cat /etc/init.d/mysql | grep pidof
        mysqld_pid=`pidof $libexecdir/mysqld`
[root@percona-pxc56-2 mysql]#

So it seems, its already resolved.

[Mark Carbonaro (mark-carbonaro)]

Sorry, I got my diff backwards, we need to add in the -c option.

I'll add the correct patch

[Mark Carbonaro (mark-carbonaro)]

Here is the correct patch

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXC-1183