[ClusterLabs] Pacemaker failover failure

Nekrasov, Alexander alexander.nekrasov at emc.com
Wed Jul 1 13:53:45 UTC 2015


stonith-enabled=false
this might be the issue. The way peer node death is resolved, the surviving node must call STONITH on the peer. If it’s disabled it might not be able to resolve the event

Alex

From: alex austin [mailto:alexixalex at gmail.com]
Sent: Wednesday, July 01, 2015 9:51 AM
To: Users at clusterlabs.org
Subject: Re: [ClusterLabs] Pacemaker failover failure

So I noticed that if I kill redis on one node, it starts on the other, no problem, but if I actually kill pacemaker itself on one node, the other doesn't "sense" it so it doesn't fail over.



On Wed, Jul 1, 2015 at 12:42 PM, alex austin <alexixalex at gmail.com<mailto:alexixalex at gmail.com>> wrote:
Hi all,

I have configured a virtual ip and redis in master-slave with corosync pacemaker. If redis fails, then the failover is successful, and redis gets promoted on the other node. However if pacemaker itself fails on the active node, the failover is not performed. Is there anything I missed in the configuration?

Here's my configuration (i have hashed the ip address out):


node host1.com<http://host1.com>

node host2.com<http://host2.com>

primitive ClusterIP IPaddr2 \

params ip=xxx.xxx.xxx.xxx cidr_netmask=23 \

op monitor interval=1s timeout=20s \

op start interval=0 timeout=20s \

op stop interval=0 timeout=20s \

meta is-managed=true target-role=Started resource-stickiness=500

primitive redis redis \

meta target-role=Master is-managed=true \

op monitor interval=1s role=Master timeout=5s on-fail=restart

ms redis_clone redis \

meta notify=true is-managed=true ordered=false interleave=false globally-unique=false target-role=Master migration-threshold=1

colocation ClusterIP-on-redis inf: ClusterIP redis_clone:Master

colocation ip-on-redis inf: ClusterIP redis_clone:Master

property cib-bootstrap-options: \

dc-version=1.1.11-97629de \

cluster-infrastructure="classic openais (with plugin)" \

expected-quorum-votes=2 \

stonith-enabled=false

property redis_replication: \

redis_REPL_INFO=host.com<http://host.com>



thank you in advance



Kind regards,



Alex

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