[Pacemaker] failure handling on a cloned resource

Andrew Beekhof andrew at beekhof.net
Tue Apr 30 23:48:56 EDT 2013

On 17/04/2013, at 9:54 PM, Johan Huysmans <johan.huysmans at inuits.be> wrote:

> Hi All,
> I'm trying to setup a specific configuration in our cluster, however I'm struggling with my configuration.
> This is what I'm trying to achieve:
> On both nodes of the cluster a daemon must be running (tomcat).
> Some failover addresses are configured and must be running on the node with a correctly running tomcat.
> I have this achieved with a cloned tomcat resource and an collocation between the cloned tomcat and the failover addresses.
> When I cause a failure in the tomcat on the node running the failover addresses, the failover addresses will failover to the other node as expected.
> crm_mon shows that this tomcat has a failure.
> When I configure the tomcat resource with failure-timeout=0, the failure alarm in crm_mon isn't cleared whenever the tomcat failure is fixed.

All sounds right so far.

> When I configure the tomcat resource with failure-timeout=30, the failure alarm in crm_mon is cleared after 30seconds however the tomcat is still having a failure.

Can you define "still having a failure"?
You mean it still shows up in crm_mon?
Have you read this link?

> What I expect is that pacemaker reports the failure as the failure exists and as long as it exists and that pacemaker reports that everything is ok once everything is back ok.
> Do I do something wrong with my configuration?
> Or how can I achieve my wanted setup?
> Here is my configuration:
> node CSE-1
> node CSE-2
> primitive d_tomcat ocf:custom:tomcat \
>    op monitor interval="15s" timeout="510s" on-fail="block" \
>    op start interval="0" timeout="510s" \
>    params instance_name="NMS" monitor_use_ssl="no" monitor_urls="/cse/health" monitor_timeout="120" \
>    meta migration-threshold="1" failure-timeout="0"
> primitive ip_1 ocf:heartbeat:IPaddr2 \
>    op monitor interval="10s" \
>    params nic="bond0" broadcast="" iflabel="ha" ip=""
> primitive ip_2 ocf:heartbeat:IPaddr2 \
>    op monitor interval="10s" \
>    params nic="bond0" broadcast="" iflabel="ha" ip=""
> group svc-cse ip_1 ip_2
> clone cl_tomcat d_tomcat
> colocation colo_tomcat inf: svc-cse cl_tomcat
> order order_tomcat inf: cl_tomcat svc-cse
> property $id="cib-bootstrap-options" \
>    dc-version="1.1.8-7.el6-394e906" \
>    cluster-infrastructure="cman" \
>    no-quorum-policy="ignore" \
>    stonith-enabled="false"
> Thanks!
> Greetings,
> Johan Huysmans
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