[Pacemaker] Howto test/simulate the reaction of the cluster to node up and down

[Andreas Mock]

Hallo Andreas,

thank you for your reply.
I use 1.1.11-git.

What I did: I put one node down (servive pacemaker stop) and then
execute a crm_simulate -Ls -u node and I only see the output
as said before. When I bring up the node in reality pacemaker
is moving resources to that node. The output of crm_simulate
doen't reflect these operations.

I don't know whether I do something wrong or I'm hitting a bug.

Anyway, thank you.

Best regards
Andreas Mock


-----Ursprüngliche Nachricht-----
Von: Andreas Kurz [mailto:andreas at hastexo.com] 
Gesendet: Mittwoch, 18. September 2013 15:45
An: pacemaker at oss.clusterlabs.org
Betreff: Re: [Pacemaker] Howto test/simulate the reaction of the cluster to
node up and down

On 2013-09-18 15:08, Andreas Mock wrote:
> Hi all,
> 
> really nobody here with deeper experience of crm_simulate?
> Or with a hint for good documentation?

What Pacemaker version are you using? I did a quick test here on older
1.1.6 and 1.1.7 clusters and they show a nice output on "crm_simulate
-Ls -u testnode" with transitions and scores.

Regards,
Andreas

-- 
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> 
> Best regards
> Andreas Mock
> 
> 
> -----Ursprüngliche Nachricht-----
> Von: Andreas Mock [mailto:andreas.mock at web.de] 
> Gesendet: Dienstag, 17. September 2013 13:38
> An: 'The Pacemaker cluster resource manager'
> Betreff: [Pacemaker] Howto test/simulate the reaction of the cluster to
node
> up and down
> 
> Hi all,
> 
> I have the problem that after a node rejoins the cluster some
> resources are move back to that node. 
> Now I want to see the calculated scores to see where I do
> have to adjust the stickyness to get the behaviour I like.
> 
> I'm not sure how to use crm_simulate to get these values.
> When both nodes are online I can simulate a node down
> by crm_simulate -Ls -d <node>.
> But how do I simulate thr transition from a state where one
> node is down? When I bring down a node by 'service pacemaker stop'
> and try a crm_simulate -Ls -u <node> I don't see resource transitions.
> I only see:
> --------------8<----------------
> Performing requested modifications
>  + Bringing node dis04 online
> --------------8<----------------
> 
> Any hints appreciated.
> 
> Best regards
> Andreas Mock
> 
> 
> 
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