[Pacemaker] crm_simulate a resource failure

[Cal Heldenbrand]

Thanks Jake, that at gives a little better description of the parameters,
but I still just can't seem to get anything to trigger with the various
syntaxes I'm trying.  See below, I'm using single quotes so the $ symbol
isn't parsed by bash.  I've tried using my clone name, different return
values, different task names, without the $ symbols... nothing seems to
trigger anything in the Transition stuff.  And I don't get any error
messages at all.

Any other ideas for me?

Thanks!

---------------------------------------------------------------------------------
[root at m3 /]# crm_simulate -LS --op-fail='$memcached:0_$monitor_$1@$
m1.fbsdata.com=$not_running'

Current cluster status:
Online: [ m1.fbsdata.com m2.fbsdata.com m3.fbsdata.com ]

 Clone Set: memcached_clone [memcached]
     Started: [ m1.fbsdata.com m2.fbsdata.com m3.fbsdata.com ]
 cluster-ip-m1  (ocf::heartbeat:IPaddr2):       Started m1.fbsdata.com
 cluster-ip-m2  (ocf::heartbeat:IPaddr2):       Started m2.fbsdata.com
 cluster-ip-m3  (ocf::heartbeat:IPaddr2):       Started m3.fbsdata.com

Transition Summary:

Executing cluster transition:

Revised cluster status:
Online: [ m1.fbsdata.com m2.fbsdata.com m3.fbsdata.com ]

 Clone Set: memcached_clone [memcached]
     Started: [ m1.fbsdata.com m2.fbsdata.com m3.fbsdata.com ]
 cluster-ip-m1  (ocf::heartbeat:IPaddr2):       Started m1.fbsdata.com
 cluster-ip-m2  (ocf::heartbeat:IPaddr2):       Started m2.fbsdata.com
 cluster-ip-m3  (ocf::heartbeat:IPaddr2):       Started m3.fbsdata.com
---------------------------------------------------------------------------------

On Tue, Oct 23, 2012 at 12:27 PM, Jake Smith <jsmith at argotec.com> wrote:

>
> ----- Original Message -----
>
> > From: "Cal Heldenbrand" <cal at fbsdata.com>
> > To: pacemaker at oss.clusterlabs.org
> > Sent: Tuesday, October 23, 2012 11:50:11 AM
> > Subject: [Pacemaker] crm_simulate a resource failure
>
> > Hi everyone,
>
> > I'm not able to find documentation or examples on this. If I have a
> > cloned primitive set across a cluster, how can I simulate a failure
> > of a resource on an individual node? I mainly want to see the scores
> > on why a particular action is taken so I can adjust my configs.
>
> > I think the --op-fail parameter is what I need, but I just don't get
> > the syntax of the value in the man page.
>
> I usually use the crm shell so I'm not positive but I think these are the
> parts you need...
>
> $rsc_$task_$interval@$node=$rc
>
> $rsc = resource to test, in your case I believe you want to specify the
> primitive instance of the clone i.e. p_resource:0
> $task = monitor or migrate or stop or whatever operation you want to take
> $interval = the interval of a monitor task
> $node = the node
> $rc = the exit code you want to fail with i.e. error, not_running
>
> So (I think) something like:
> --op-fail=$p_of_clone_resource:0_$monitor_$10@$node1=$not_running
>
> You *should* be able to experiment till you get it just right since its
> simulate.. :-)
>
> HTH
>
> Jake
>
> > Thank you!
>
> > --Cal
>
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>
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