[Pacemaker] target-role changing from Master to Started

[Andrew Beekhof]

On Thu, Nov 18, 2010 at 2:08 AM, Rick Kint <rwkint at yahoo.com> wrote:

> Hello --
>
> We've experienced a weird problem 3 times in the last month on different
> clusters.
>
> Environment:
> - Pacemaker 1.0.9.1-1
> - Corosync 1.2.5-1
> - RHEL5.4
> - 2 nodes
>
> We run a simple configuration with a master/slave resource, appended below.
>
> Three times we have found different clusters in a state where both
> instances are slaves and Pacemaker seems perfectly happy with this.  Looking
> at the configuration (cib.xml) reveals that the target-role attribute for
> the master/slave resource has changed from Master to Started.  Changing the
> value of this attribute back to Master fixes the problem immediately.
>
> Any ideas what might be causing this?  Nobody is doing it manually.
>

Sorry to say this, but they are.
No part of the software manually changes target-role.

Options are:
1) human
2) cron job
3) resource agent


>
> I'll hold off on logs until asked, this stuff can get voluminous.
>
>
> Thanks, Rick Kint
>
>
> <configuration>
>   <crm_config>
>     <cluster_property_set id="cib-bootstrap-options">
>       <nvpair id="cib-bootstrap-options-stonith-enabled"
> name="stonith-enabled" value="false"/>
>       <nvpair id="cib-bootstrap-options-no-quorum-policy"
> name="no-quorum-policy" value="ignore"/>
>       <nvpair id="cib-bootstrap-options-dc-version" name="dc-version"
> value="1.0.9-89bd754939df5150de7cd76835f98fe90851b677"/>
>       <nvpair id="cib-bootstrap-options-cluster-infrastructure"
> name="cluster-infrastructure" value="openais"/>
>       <nvpair id="cib-bootstrap-options-expected-quorum-votes"
> name="expected-quorum-votes" value="2"/>
>       <nvpair id="cib-bootstrap-options-last-lrm-refresh"
> name="last-lrm-refresh" value="1289857566"/>
>     </cluster_property_set>
>   </crm_config>
>   <nodes>
>     <node id="fnord004" type="normal" uname="fnord004"/>
>     <node id="fnord005" type="normal" uname="fnord005"/>
>   </nodes>
>   <resources>
>     <master id="Bar">
>       <meta_attributes id="Bar-meta_attributes">
>         <nvpair id="Bar-meta_attributes-clone-max" name="clone-max"
> value="2"/>
>         <nvpair id="Bar-meta_attributes-clone-node-max"
> name="clone-node-max" value="1"/>
>         <nvpair id="Bar-meta_attributes-master-max" name="master-max"
> value="1"/>
>         <nvpair id="Bar-meta_attributes-notify" name="notify"
> value="false"/>
>         <nvpair id="Bar-meta_attributes-target-role" name="target-role"
> value="Master"/>
>         <nvpair id="Bar-meta_attributes-is-managed" name="is-managed"
> value="true"/>
>       </meta_attributes>
>       <primitive class="ocf" id="Foo" provider="fnord" type="foo">
>         <operations>
>           <op id="Foo-start-0s" interval="0s" name="start" timeout="300s"/>
>           <op id="Foo-monitor-2s" interval="2s" name="monitor"
> role="Master" timeout="20s"/>
>           <op id="Foo-monitor-3s" interval="3s" name="monitor" role="Slave"
> timeout="20s"/>
>         </operations>
>       </primitive>
>     </master>
>   </resources>
>   <constraints/>
>   <op_defaults/>
>   <rsc_defaults>
>     <meta_attributes id="rsc-options">
>       <nvpair id="rsc-options-resource-stickiness"
> name="resource-stickiness" value="100"/>
>     </meta_attributes>
>   </rsc_defaults>
> </configuration>
>
>
>
>
>
> _______________________________________________
> Pacemaker mailing list: Pacemaker at oss.clusterlabs.org
> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>
> Project Home: http://www.clusterlabs.org
> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
> Bugs:
> http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://oss.clusterlabs.org/pipermail/pacemaker/attachments/20101118/f7e578cf/attachment.htm>