Bug 1111318

Summary: pakcstack: mysql fails to restart on CentOS6.5
Product: [Community] RDO Reporter: wes hayutin <whayutin>
Component: openstack-packstackAssignee: Lukas Bezdicka <lbezdick>
Status: CLOSED CURRENTRELEASE QA Contact: wes hayutin <whayutin>
Severity: high Docs Contact:
Priority: unspecified    
Version: unspecifiedCC: aortega, bloch, derekh, ichavero, jruzicka, mmagr, palimarium, yeylon
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Fixed In Version: openstack-packstack-2014.1.1-0.22.dev1184.el6 Doc Type: Bug Fix
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Last Closed: 2016-03-30 23:07:22 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
log files for install none

Description wes hayutin 2014-06-19 17:59:54 UTC 
Created attachment 910486 [details]
log files for install

Description of problem:

00:29:17.924 ERROR : Error appeared during Puppet run: 172.16.7.20_mysql.pp
00:29:17.924 Error: Could not start Service[mysqld]: Execution of '/sbin/service mysqld start' returned 1: MySQL Daemon failed to start.


PuppetError: Error appeared during Puppet run: 172.16.7.20_mysql.pp
Error: /Stage[main]/Mysql::Config/Exec[mysqld-restart]: Failed to call refresh: service mysqld restart returned 1 instead of one of [0][0m
You will find full trace in log /var/tmp/packstack/20140619-124254-h4MshD/manifests/172.16.7.20_mysql.pp.log


See attached logs for details
Comment 1 Ivan Chavero 2014-06-20 13:46:19 UTC 
Review approved
Comment 2 Marius Palimariu 2014-06-24 05:01:22 UTC 
When packstack installs mariadb, it edits /etc/my.cnf.d/innodb.cnf to change innodb_log_file_size.
When mysqld starts, it looks at /var/lib/mysql/ib_logfile*. If they are not there, it will create them with innodb_log_file_size. If they are there and not the same size, it will error.
Comment 3 Lukas Bezdicka 2014-06-24 11:08:33 UTC 
(In reply to Marius Palimariu from comment #2)
> When packstack installs mariadb, it edits /etc/my.cnf.d/innodb.cnf to change
> innodb_log_file_size.
> When mysqld starts, it looks at /var/lib/mysql/ib_logfile*. If they are not
> there, it will create them with innodb_log_file_size. If they are there and
> not the same size, it will error.

What we do is that on 6.5 we try to change innodb.cnf before mysql/maria starts and if we change innodb.cnf file it triggers exec to stop daemon, remove ib_log and notify restart. To be fair it's racy but atm there's no way to tell that the logs are of the required innodb_log_file_size (or I just don't know the way) so we just have to guess that we need to remove them.