[Pacemaker] fencing question

Andrew Beekhof andrew at beekhof.net
Mon Mar 17 23:11:29 UTC 2014 

On 14 Mar 2014, at 1:18 am, Karl Rößmann <K.Roessmann at fkf.mpg.de> wrote:

> Hi,
> 
> I changed the running resource by
> crm / configure / edit / commit. It seemed to work.
> 
> I stopped the resource, and changed some details,
> Whenever I commit again I get this warning:
> warning: do_log: FSA: Input I_ELECTION_DC from do_election_check() received in state S_INTEGRATION
> 
> see below
> 
> Mar 13 15:02:04 ha1infra crm_verify[24991]:   notice: crm_log_args: Invoked: crm_verify -V -p
> Mar 13 15:02:04 ha1infra cibadmin[24992]:   notice: crm_log_args: Invoked: cibadmin -p -R
> Mar 13 15:02:04 ha1infra crmd[21812]:   notice: do_state_transition: State transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph ]
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: Diff: --- 0.1057.3
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: Diff: +++ 0.1058.1 a460a945dcf52bbb4ffb39e7963ee925
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: -- <cib admin_epoch="0" epoch="1057" num_updates="3"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++       <primitive id="vmdv03" class="ocf" provider="heartbeat" type="Xen">
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         <meta_attributes id="vmdv03-meta_attributes">
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <nvpair name="target-role" value="Stopped" id="vmdv03-meta_attributes-target-role"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <nvpair name="allow-migrate" value="true" id="vmdv03-meta_attributes-allow-migrate"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         </meta_attributes>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         <operations>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <op name="monitor" interval="10" timeout="30" id="vmdv03-monitor-10"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <op name="migrate_from" interval="0" timeout="600" id="vmdv03-migrate_from-0"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <op name="migrate_to" interval="0" timeout="600" id="vmdv03-migrate_to-0"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         </operations>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         <instance_attributes id="vmdv03-instance_attributes">
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <nvpair name="xmfile" value="/etc/xen/vm/vmdv03" id="vmdv03-instance_attributes-xmfile"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++           <nvpair name="shutdown_timeout" value="120" id="vmdv03-instance_attributes-shutdown_timeout"/>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++         </instance_attributes>
> Mar 13 15:02:04 ha1infra cib[21807]:   notice: cib:diff: ++       </primitive>
> Mar 13 15:02:04 ha1infra crmd[21812]:   notice: do_state_transition: State transition S_ELECTION -> S_INTEGRATION [ input=I_ELECTION_DC cause=C_TIMER_POPPED origin=election_timeout_popped ]
> Mar 13 15:02:04 ha1infra crmd[21812]:  warning: do_log: FSA: Input I_ELECTION_DC from do_election_check() received in state S_INTEGRATION  <------ what does this mean ?

It means that something not completely normal is going on.
Possibly the nodes can't talk to each other, but I'm betting on a bug of some kind.

> Mar 13 15:02:04 ha1infra crmd[21812]:   notice: do_state_transition: State transition S_IDLE -> S_POLICY_ENGINE [ input=I_PE_CALC cause=C_FSA_INTERNAL origin=abort_transition_graph ]
> Mar 13 15:02:04 ha1infra crmd[21812]:   notice: do_state_transition: State transition S_ELECTION -> S_INTEGRATION [ input=I_ELECTION_DC cause=C_TIMER_POPPED origin=election_timeout_popped ]

There's not enough time for a timer to have really expired.
Probably a good idea to contact SUSE support (and configure a log file, it will contain more information than syslog).

> Mar 13 15:02:04 ha1infra attrd[21810]:   notice: attrd_local_callback: Sending full refresh (origin=crmd)
> Mar 13 15:02:04 ha1infra attrd[21810]:   notice: attrd_trigger_update: Sending flush op to all hosts for: shutdown (0)
> Mar 13 15:02:04 ha1infra crmd[21812]:   notice: crm_update_quorum: Updating quorum status to true (call=457)
> Mar 13 15:02:04 ha1infra attrd[21810]:   notice: attrd_trigger_update: Sending flush op to all hosts for: probe_complete (true)
> 
> 
> 
> Karl
> 
> 
>> On 2014-03-12T16:16:54, Karl Rößmann <K.Roessmann at fkf.mpg.de> wrote:
>> 
>>> >>primitive fkflmw ocf:heartbeat:Xen \
>>> >>        meta target-role="Started" is-managed="true" allow-migrate="true" \
>>> >>        op monitor interval="10" timeout="30" \
>>> >>        op migrate_from interval="0" timeout="600" \
>>> >>        op migrate_to interval="0" timeout="600" \
>>> >>        params xmfile="/etc/xen/vm/fkflmw" shutdown_timeout="120"
>>> >
>>> >You need to set a >120s timeout for the stop operation too:
>>> >	op stop timeout="150"
>>> >
>>> >>        default-action-timeout="60s"
>>> >
>>> >Or set this to, say, 150s.
>>> can I do this while the resource (the xen VM) is running ?
>> 
>> Yes, changing the stop timeout should not have a negative impact on your
>> resource.
>> 
>> You can also check how the cluster would react:
>> 
>> # crm configure
>> crm(live)configure# edit
>> (Make all changes you want here)
>> crm(live)configure# simulate actions nograph
>> 
>> before you type "commit".
>> 
>> Regards,
>>    Lars
>> 
>> --
>> Architect Storage/HA
>> SUSE LINUX Products GmbH, GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 21284 (AG Nürnberg)
>> "Experience is the name everyone gives to their mistakes." -- Oscar Wilde
>> 
>> 
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>> 
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>> Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf
>> Bugs: http://bugs.clusterlabs.org
>> 
> 
> 
> 
> -- 
> Karl Rößmann				Tel. +49-711-689-1657
> Max-Planck-Institut FKF       		Fax. +49-711-689-1632
> Postfach 800 665
> 70506 Stuttgart				email K.Roessmann at fkf.mpg.de
> 
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> 
> Project Home: http://www.clusterlabs.org
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