[Pacemaker] Trouble swinging a Shared IP (VIP) upon active mysql instance shutdown

[PATRICKZOBLISEIN at comcast.net]

Hi All, 


I currently have a 2-node Corosync+Pacemaker cluster configured with a Shared IP (VIP). When the active node fails, the VIP swings to the passive node and becomes active - this works very well so far. 


Also - on each node is a MySQL instance - a Master/Master replication configuration. 


My issue at the moment, is getting Pacemaker configured properly in order to swing the shared ip (VIP) when the active MySQL instance is down. 


Whenever I shutdown the mysql service on EITHER node - Pacemaker restarts that instance - instead of restarting, I'd really like to see the VIP swing to the other node. 


Below is my crm configuration - I understand that the example_mysql1 primitive is configured to start the mysql instance - but is there a way to say instead of "op start" - "op shared_ip_one"? 


I've only started playing with Pacemaker and Corosync and am still digesting concepts - so I'm hoping what I'm trying to accomplish is 'simple' and I'm not able to see the forest for the trees. 




Many thanks in advance, 
Patrick 




`crm configure edit` 



node mycluster1.oz.com 
node mycluster2.oz.com 
primitive example_mysql1 ocf:heartbeat:mysql \ 
params binary="mysqld_safe" datadir="/var/lib/mysql/data" pid="/var/lib/mysql/data/mysql.pid" socket="/var/lib/mysql/data/mysql.sock" log="/var/lib/mysql/data/mysql_cluster.log" \ 
op start interval="0" timeout="120" \ 
op stop interval="0" timeout="120" \ 
op monitor interval="10" timeout="30" depth="0" 
primitive shared_ip_one ocf:heartbeat:IPaddr \ 
params ip="10.4.1.100" cidr_netmask="255.255.255.0" nic="eth0" \ 
op monitor interval="10s" 
ms example_mysql1_master example_mysql1 \ 
meta target-role="Slave" 
location cli-prefer-example_mysql1 example_mysql1_master \ 
rule $id="cli-prefer-rule-example_mysql1" inf: #uname eq mycluster2.oz.com 
location cli-prefer-shared_ip_one shared_ip_one \ 
rule $id="cli-prefer-rule-shared_ip_one" inf: #uname eq mycluster1.oz.com 
property $id="cib-bootstrap-options" \ 
dc-version="1.0.11-1554a83db0d3c3e546cfd3aaff6af1184f79ee87" \ 
cluster-infrastructure="openais" \ 
expected-quorum-votes="2" \ 
stonith-enabled="false" 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.clusterlabs.org/pipermail/pacemaker/attachments/20110511/e34a7fe3/attachment-0002.html>