[Pacemaker] Newbie question

[Dominik Klein]

Hi Mark

The keyword you're looking for is "pingd".

This example should get you going:
http://www.clusterlabs.org/wiki/Example_configurations#Failover_IP__Service_in_a_Group_running_on_a_connected_node

Regards
Dominik

Mark Schenk wrote:
> Hello All,
> 
>  I'm new to pacemaker so please forgive me if this is in a faq
> somewhere, I haven't been able to find it!
> I am trying to set up a failover config for mysql using the following
> setup:
> 
> primitive mysqlvip ocf:heartbeat:IPaddr params ip="xx.xx.xx.xx"
> primitive mysqlfs ocf:heartbeat:Filesystem params device="-L mysql"
> directory="/var/lib/mysql" fstype="ext3"
> primitive mysqlserver ocf:heartbeat:mysql params
> binary="/usr/bin/mysqld_safe" op monitor interval="60s" timeout="30s"
> primitive st-null stonith:null params hostlist="mysql1 mysql2"
> group mysqlservice mysqlvip mysqlfs mysqlserver
> clone fencing st-null
> location mysql1loc mysqlservice 200: mysql1
> location mysql2loc mysqlservice 150: mysql2
> colocation mysql_ip_with_fs inf: mysqlvip mysqlfs
> colocation mysql_server_with_fs inf: mysqlserver mysqlfs
> order mysql_fsbeforeserver inf: mysqlfs mysqlserver
> 
> And it looks to be working great. When I start the configuration three
> resources are started on node mysql1. When I switch off node1 by
> shutting down the heartbeat service I can see all my resources moving
> over to node mysql2. However when I pull the plug on node mysql1 by
> switching it off, my services are not moving over. Instead my services
> are listed as having been started on node mysql1 (which is down!). This
> is the output of crm_mon -r:
> 
> 
> ============
> Last updated: Thu May 14 14:32:46 2009
> Current DC: nfs2 (e588fc86-92d8-4658-a394-3e031171bcd0) - partition with
> quorum
> Version: 1.0.3-b133b3f19797c00f9189f4b66b513963f9d25db9
> 6 Nodes configured, unknown expected votes
> 2 Resources configured.
> ============
> 
> Node mysql1 (ea3da999-829d-4042-a5d5-9ee0ad27f989): UNCLEAN (offline)
> Online: [ apa1 apa2 mysql2 nfs1 nfs2 ]
> 
> Full list of resources:
> 
> Resource Group: mysqlservice
>    mysqlvip    (ocf::heartbeat:IPaddr):        Started mysql1
>    mysqlfs     (ocf::heartbeat:Filesystem):    Started mysql1
>    mysqlserver (ocf::heartbeat:mysql):   Started mysql1
> Clone Set: fencing
>        Stopped: [ st-null:0 st-null:1 st-null:2 st-null:3 st-null:4
> st-null:5 ]
> 
> I must be missing something but I haven't yet found it.
> 
> Any pointers would be appreciated.
> 
> Thanks,
>  Mark
> 
> 
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