[Pacemaker] [Enhancement] Change of the "globally-unique" attribute of the resource.

[Andrew Beekhof]

On 15 Jan 2014, at 12:06 pm, renayama19661014 at ybb.ne.jp wrote:

> Hi Andrew,
> 
> Sorry....
> 
> This problem is a thing of Pacemaker1.0.
> On Pacemaker1.1.11, the resource did movement to stop definitely.
> 
> When "globally-unique" attribute changed somehow or other in Pacemaker1.1, Pacemkaer seems to carry out the reboot of the resource.

Makes sense, since the definition changed

> 
> (snip)
> Jan 15 18:29:40 rh64-2744 pengine[3369]:  warning: process_rsc_state: Detected active orphan prmClusterMon running on rh64-2744
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: clone_print:  Clone Set: clnClusterMon [prmClusterMon] (unique)
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: native_print:      prmClusterMon:0#011(ocf::pacemaker:ClusterMon):#011Stopped
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: native_print:      prmClusterMon:1#011(ocf::pacemaker:ClusterMon):#011Stopped
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: native_print: prmClusterMon#011(ocf::pacemaker:ClusterMon):#011 ORPHANED Started rh64-2744
> Jan 15 18:29:40 rh64-2744 pengine[3369]:   notice: DeleteRsc: Removing prmClusterMon from rh64-2744
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: native_color: Stopping orphan resource prmClusterMon
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: RecurringOp:  Start recurring monitor (10s) for prmClusterMon:0 on rh64-2744
> Jan 15 18:29:40 rh64-2744 pengine[3369]:     info: RecurringOp:  Start recurring monitor (10s) for prmClusterMon:1 on rh64-2744
> Jan 15 18:29:40 rh64-2744 pengine[3369]:   notice: LogActions: Start   prmClusterMon:0#011(rh64-2744)
> Jan 15 18:29:40 rh64-2744 pengine[3369]:   notice: LogActions: Start   prmClusterMon:1#011(rh64-2744)Jan 15 18:29:40 rh64-2744 pengine[3369]:   notice: LogActions: Stop    prmClusterMon#011(rh64-2744)
> 
> (snip)
> 
> Best Regards,
> Hideo Yamauchi.
> 
> --- On Wed, 2014/1/15, renayama19661014 at ybb.ne.jp <renayama19661014 at ybb.ne.jp> wrote:
> 
>> Hi Andrew,
>> 
>> Thank you for comment.
>> 
>>>> But, the resource does not stop because PID file was changed as for the changed resource of the "globally-unique" attribute.
>>> 
>>> I'd have expected the stop action to be performed with the old attributes.
>>> crm_report tarball?
>> 
>> Okay.
>> 
>> I register this topic with Bugzilla.
>> I attach the log to Bugzilla.
>> 
>> Best Regards,
>> Hideo Yamauchi.
>> --- On Wed, 2014/1/15, Andrew Beekhof <andrew at beekhof.net> wrote:
>> 
>>> 
>>> On 14 Jan 2014, at 7:26 pm, renayama19661014 at ybb.ne.jp wrote:
>>> 
>>>> Hi All,
>>>> 
>>>> When a user changes the "globally-unique" attribute of the resource, a problem occurs.
>>>> 
>>>> When it manages the resource with PID file, this occurs, but this is because PID file name changes by "globally-unique" attribute.
>>>> 
>>>> (snip)
>>>> if [ ${OCF_RESKEY_CRM_meta_globally_unique} = "false" ]; then
>>>>     : ${OCF_RESKEY_pidfile:="$HA_VARRUN/ping-${OCF_RESKEY_name}"}
>>>> else
>>>>     : ${OCF_RESKEY_pidfile:="$HA_VARRUN/ping-${OCF_RESOURCE_INSTANCE}"}
>>>> fi
>>>> (snip)
>>> 
>>> This is correct.  The pid file cannot include the instance number when globally-unique is false and must do so when it is true.
>>> 
>>>> 
>>>> 
>>>> The problem can reappear in the following procedure.
>>>> 
>>>> * Step1: Started a resource.
>>>> (snip)
>>>> primitive prmPingd ocf:pacemaker:pingd \
>>>>         params name="default_ping_set" host_list="192.168.0.1" multiplier="200" \
>>>>         op start interval="0s" timeout="60s" on-fail="restart" \
>>>>         op monitor interval="10s" timeout="60s" on-fail="restart" \
>>>>         op stop interval="0s" timeout="60s" on-fail="ignore"
>>>> clone clnPingd prmPingd
>>>> (snip)
>>>> 
>>>> * Step2: Change "globally-unique" attribute.
>>>> 
>>>> [root]# crm configure edit
>>>> (snip)
>>>> clone clnPingd prmPingd \
>>>>     meta clone-max="2" clone-node-max="2" globally-unique="true"
>>>> (snip)
>>>> 
>>>> * Step3: Stop Pacemaker
>>>> 
>>>> But, the resource does not stop because PID file was changed as for the changed resource of the "globally-unique" attribute.
>>> 
>>> I'd have expected the stop action to be performed with the old attributes.
>>> crm_report tarball?
>>> 
>>> 
>>>> 
>>>> I think that this is a known problem.
>>> 
>>> It wasn't until now.
>>> 
>>>> 
>>>> I wish this problem is solved in the future
>>>> 
>>>> Best Regards,
>>>> Hideo Yamauchi.
>>>> 
>>>> _______________________________________________
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>>>> http://oss.clusterlabs.org/mailman/listinfo/pacemaker
>>>> 
>>>> Project Home: http://www.clusterlabs.org
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>>>> Bugs: http://bugs.clusterlabs.org
>>> 
>>> 
>> 
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>> 
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>> 
> 

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