[Pacemaker] Mysql Replication Problem with HA processes

[raki]

Hi Andrew


Hi Andrew

We had installed Heartbeat/Pacemaker on two Unix(Centos 5.0.2 Machines)

The RPM's we had used for installing Heartbeat ad Pacemaker are

heartbeat-3.0.3-2.3.el5.i386.rpm
pacemaker-1.0.9.1-1.15.el5.i386.rpm

Please find the crm(cluster resource manager) order  and co-location we had
used.

colocation Httpd-with-Mysql inf: HttpdVIP MS_Mysql:Master
colocation Httpd-with-ip inf: HttpdVIP Httpd
colocation Mysql-with-Tomcat inf: Tomcat1 MS_Mysql:Master
colocation Tomcat-with-HttpdVIP inf: Tomcat1 HttpdVIP
order Httdp-after-HttpdVIP inf: HttpdVIP Httpd
order Httdp-after-tomcat1 inf: Httpd Tomcat1
order MYSQL-after-HttpdVIP inf: MS_Mysql HttpdVIP

we had two nodes running HA processes (cluster with two nodes)

In on of our test scenario we tried to restart the node where Mysql-Master
is running, based on the above configuration the Ha processes restarts and
other node Mysql processes takes over the Master responsibility

And we saw the Mysql replication stops working and in the Slave status we
found this error duplicate entry for the key values.

Please help us regarding this.
 Error Description  'Duplicate entry '2083' for key 1' on query. Default
database: 'MSF_DB'.

I ca also provide what ever information required.

waiting for you response on this.

Rakesh
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