[Linux-cluster] Issue with mysql service in RHEL6.2 cluster
Roka, Rajendra
rajendra.roka at pacificmags.com.au
Thu Jan 12 04:39:43 UTC 2012
Yes it starts if I do manually:
[root at atp-wwdev1 ~]# mount -t nfs 10.26.240.190:/nfs/mysql
/var/lib/mysql/
[root at atp-wwdev1 ~]# /etc/init.d/mysqld start
Starting mysqld: [ OK ]
[root at atp-wwdev1 ~]# cat /var/log/mysqld.log
120112 15:28:57 mysqld_safe Starting mysqld daemon with databases from
/var/lib/mysql
120112 15:28:58 InnoDB: Started; log sequence number 0 44233
120112 15:28:58 [Note] Event Scheduler: Loaded 0 events
120112 15:28:58 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.1.52' socket: '/var/lib/mysql/mysql.sock' port: 3306
Source distribution
[root at atp-wwdev1 ~]# /etc/init.d/mysqld stop
Stopping mysqld: [ OK ]
root at atp-wwdev1 ~]# cat /var/log/mysqld.log
120112 15:29:39 [Note] /usr/libexec/mysqld: Normal shutdown
120112 15:29:39 [Note] Event Scheduler: Purging the queue. 0 events
120112 15:29:39 InnoDB: Starting shutdown...
120112 15:29:43 InnoDB: Shutdown completed; log sequence number 0 44233
120112 15:29:43 [Note] /usr/libexec/mysqld: Shutdown complete
But if I start with cluster, it doesnot give any error message in
/var/log/mysqld.log
Once again my cluster.conf is follows:
<?xml version="1.0"?>
<cluster config_version="39" name="atp_mysql">
<clusternodes>
<clusternode name="atp-wwdev1.test1.com.au" nodeid="1">
<fence/>
<multicast addr="239.192.200.1"/>
</clusternode>
<clusternode name="atp-wwdev2.test1.com.au" nodeid="2"
votes="1">
<fence/>
<multicast addr="239.192.200.1"/>
</clusternode>
</clusternodes>
<fencedevices>
<fencedevice agent="fence_xvm" name="fence"/>
</fencedevices>
<rm>
<failoverdomains>
<failoverdomain name="atp_failover"
nofailback="0" ordered="1" restricted="0">
<failoverdomainnode
name="atp-wwdev1.test1.com.au" priority="2"/>
<failoverdomainnode
name="atp-wwdev2.test1.com.au" priority="5"/>
</failoverdomain>
</failoverdomains>
<resources>
<ip address="10.26.240.95/24" monitor_link="on"
sleeptime="2"/>
<mysql config_file="/etc/my.cnf"
listen_address="10.26.24.95" name="mysql" shutdown_wait="60"
startup_wait="60"/>
<netfs export="/nfs/mysql" force_unmount="on"
fstype="nfs" host="10.26.240.190" mountpoint="/var/lib/mysql"
name="storage" no_unmount="on"/>
</resources>
<service autostart="1" domain="atp_failover"
exclusive="0" name="mysql" recovery="relocate">
<ip ref="10.26.240.95/24"/>
<netfs ref="storage"/>
<mysql ref="mysql"/>
</service>
</rm>
<fence_daemon clean_start="0" post_fail_delay="0"
post_join_delay="3"/>
<cman expected_votes="1" two_node="1">
<multicast addr="239.192.200.1"/>
</cman>
<totem/>
<logging debug="off"/>
</cluster>
And my.cnf is follows:
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security
risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/cluster/mysql/mysql.pid
If you need any more info, please let me know.
Thanks
From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Ryan Mitchell
Sent: Thursday, 12 January 2012 3:01 PM
To: linux-cluster at redhat.com
Subject: Re: [Linux-cluster] Issue with mysql service in RHEL6.2 cluster
On 01/12/2012 01:11 PM, Roka, Rajendra wrote:
Any more suggestions on this?
According to the new log, it still timed out after 60 seconds, so either
that wasn't long enough either, or there is a misconfiguration and the
database can't start because of it:
Jan 10 11:42:57 atp-wwdev1 modcluster: Starting service: mysql on node
Jan 10 11:42:57 atp-wwdev1 rgmanager[1690]: Starting stopped service
service:mysql
Jan 10 11:42:58 atp-wwdev1 rgmanager[5252]: Adding IPv4 address
10.26.240.95/24 to eth0
Jan 10 11:43:01 atp-wwdev1 rgmanager[5401]: Starting Service mysql:mysql
Jan 10 11:44:01 atp-wwdev1 rgmanager[5657]: Starting Service mysql:mysql
> Failed - Timeout Error
Jan 10 11:44:01 atp-wwdev1 rgmanager[1690]: start on mysql "mysql"
returned 1 (generic error)
Jan 10 11:44:02 atp-wwdev1 rgmanager[1690]: #68: Failed to start
service:mysql; return value: 1
What does it say in your mysql log? The resource script runs the
command to start the database and then waits for it to return success.
It waited 60 seconds, and hadn't received any notice that the database
started or not, so it gave up.
Look in the logs to see if there is any indication as to why the
database won't start. It could be because you have the wrong
configuration in /etc/my.cnf, no permissions on some critical
directories, or the resource script is misconfigured. Also, you should
investigate whether you can manually start the database (after mounting
the NFS mount and adding the VIP of course) outside of cluster (and
compare working and failing mysql logs).
Regards,
Ryan Mitchell
Software Maintenance Engineer
Support Engineering Group
Red Hat, Inc.
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