[Pacemaker] trigger STONITH for testing purposes

[Andrew Beekhof]

2009/6/3 Yan Gao <ygao at novell.com>:
> On Fri, 2009-05-22 at 12:33 +0200, Andrew Beekhof wrote:
>> On Wed, May 20, 2009 at 6:39 PM, Bob Haxo <bhaxo at sgi.com> wrote:
>> > Hi Andrew,
>> >
>> > I'd say you removed no-quorum-policy=ignore
>> >
>> > Actually, the pair of no_quorum_policy and no-quorum-policy are set to
>> > "ignore", and expected-quorum-votes is set to "2":
>> >
>> >   <crm_config>
>> >     <cluster_property_set id="cib-bootstrap-options">
>> >       ...
>> >       <nvpair id="cib-bootstrap-options-expected-quorum-votes"
>> > name="expected-quorum-votes" value="2"/>
>> >       <nvpair id="cib-bootstrap-options-no_quorum_policy"
>> > name="no_quorum_policy" value="ignore"/>
>> >       <nvpair id="nvpair-1d2c923d-7619-4b45-989a-698357f9f8cb"
>> > name="no-quorum-policy" value="ignore"/>
>> >       ...
>> >       </cluster_property_set>
>> >    </crm_config>
>> >
>> > Removing the no-quorum-policy=ignore and no_quorum_policy=ignore (as in,
>> > deleting the variables) left the cluster unable to failover with either an
>> > ifdown iface or with a node reboot.  The state displayed by the GUI did not
>> > agree with the state displayed by crm_mon (the GUI showed the ifdown or
>> > rebooted node as still controlling resources, whereas crm_mon showed the
>> > resources unavailable ... both showed the inaccessible node as offline).
>>
>> Assuming stonith-enabled was set to false, crm_mon is correct as the
>> cluster assumes that the node is cleanly down*.
>> You should file a bug for the GUI in that case.
> It happens when a node is uncleanly offline, while the resources are
> still seen running on the node (according to rsc->running_on) , and the
> resources's role is still "Started".
>
> Changed in mgmtd:
> http://hg.clusterlabs.org/pacemaker/pygui/rev/f6b91f133ce8
>
> In that case, regards the resources status is "unclean":
> ..
> if (g_list_length(rsc->running_on) > 0
>                 && rsc->fns->active(rsc, TRUE) == FALSE) {
>     strncat(buf, "unclean", sizeof(buf)-strlen(buf)-1);
> ..
>
>
> Andrew,
> If we execute crm_mon without "-r", the resources have ever been running
> on the uncleanly offline node will be hidden.

Even when stonith-enabled is set to true?

> While with "-r", the
> primitive resources will be shown as "Started" on that node.
> "crm_resource -W"  has the same behavior.
>
> That's inconsistent. Perhaps we also need to consider if resources are
> "active" when those options are enabled?
>
> --
> Regards,
> Yan Gao
> China R&D Software Engineer
> ygao at novell.com
>
> Novell, Inc.
> Making IT Work As One™
>
>
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