[Pacemaker] "ERROR: Wrong stack o2cb" when trying to start o2cb service in Pacemaker cluster

Andreas Kurz andreas at hastexo.com
Wed Jun 20 15:09:18 CEST 2012 

On 06/20/2012 02:22 PM, David Guyot wrote:
> Hello.
> 
> Oops, an omission.
> 
> Here comes my Pacemaker config :
> root at Malastare:/home/david# crm configure show
> node Malastare
> node Vindemiatrix
> primitive p_controld ocf:pacemaker:controld
> primitive p_drbd_ocfs2_backupvi ocf:linbit:drbd \
>     params drbd_resource="backupvi"
> primitive p_drbd_ocfs2_pgsql ocf:linbit:drbd \
>     params drbd_resource="postgresql"
> primitive p_drbd_ocfs2_svn ocf:linbit:drbd \
>     params drbd_resource="svn"
> primitive p_drbd_ocfs2_www ocf:linbit:drbd \
>     params drbd_resource="www"
> primitive p_o2cb ocf:pacemaker:o2cb \
>     meta target-role="Started"
> primitive soapi-fencing-malastare stonith:external/ovh \
>     params reversedns="ns208812.ovh.net"
> primitive soapi-fencing-vindemiatrix stonith:external/ovh \
>     params reversedns="ns235795.ovh.net"
> ms ms_drbd_ocfs2_backupvi p_drbd_ocfs2_backupvi \
>     meta master-max="2" clone-max="2"
> ms ms_drbd_ocfs2_pgsql p_drbd_ocfs2_pgsql \
>     meta master-max="2" clone-max="2"
> ms ms_drbd_ocfs2_svn p_drbd_ocfs2_svn \
>     meta master-max="2" clone-max="2"
> ms ms_drbd_ocfs2_www p_drbd_ocfs2_www \
>     meta master-max="2" clone-max="2"
> location stonith-malastare soapi-fencing-malastare -inf: Malastare
> location stonith-vindemiatrix soapi-fencing-vindemiatrix -inf: Vindemiatrix
> property $id="cib-bootstrap-options" \
>     dc-version="1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff" \
>     cluster-infrastructure="openais" \
>     expected-quorum-votes="2"
> 

I have absolutely no idea why your configuration can run at all without
more errors ... do you start the drbd resources manually before the cluster?

You are missing the notify meta-attribute for all your DRBD ms
resources, you have no order and colocation constraints or groups at all
and you don't clone controld and o2cb ... and there are no ocfs2 mounts?

Also quite important: what distribution are you using?

> The STONITH resources are custom ones which use my provider SOAP API to
> electrically reboot fenced nodes.
> 
> Concerning the web page you talked me about, I tried to insert the
> referred environment variable, but it did not solved the problem :

Really have a look at the crm configuration snippet on that page and
read manuals about setting up DRBD in Pacemaker.

Regards,
Andreas

> root at Malastare:/home/david# crm_mon --one-shot -VroA
> ============
> Last updated: Wed Jun 20 14:14:41 2012
> Last change: Wed Jun 20 09:22:39 2012 via cibadmin on Malastare
> Stack: openais
> Current DC: Vindemiatrix - partition with quorum
> Version: 1.1.7-ee0730e13d124c3d58f00016c3376a1de5323cff
> 2 Nodes configured, 2 expected votes
> 12 Resources configured.
> ============
> 
> Online: [ Vindemiatrix Malastare ]
> 
> Full list of resources:
> 
>  soapi-fencing-malastare    (stonith:external/ovh):    Stopped
>  p_controld    (ocf::pacemaker:controld):    Started Malastare
>  p_o2cb    (ocf::pacemaker:o2cb):    Started Vindemiatrix FAILED
>  soapi-fencing-vindemiatrix    (stonith:external/ovh):    Stopped
>  Master/Slave Set: ms_drbd_ocfs2_pgsql [p_drbd_ocfs2_pgsql]
>      Masters: [ Vindemiatrix Malastare ]
>  Master/Slave Set: ms_drbd_ocfs2_backupvi [p_drbd_ocfs2_backupvi]
>      Masters: [ Vindemiatrix Malastare ]
>  Master/Slave Set: ms_drbd_ocfs2_svn [p_drbd_ocfs2_svn]
>      Masters: [ Vindemiatrix Malastare ]
>  Master/Slave Set: ms_drbd_ocfs2_www [p_drbd_ocfs2_www]
>      Masters: [ Vindemiatrix Malastare ]
> 
> Node Attributes:
> * Node Vindemiatrix:
>     + master-p_drbd_ocfs2_backupvi:0      : 10000    
>     + master-p_drbd_ocfs2_pgsql:0         : 10000    
>     + master-p_drbd_ocfs2_svn:0           : 10000    
>     + master-p_drbd_ocfs2_www:0           : 10000    
> * Node Malastare:
>     + master-p_drbd_ocfs2_backupvi:1      : 10000    
>     + master-p_drbd_ocfs2_pgsql:1         : 10000    
>     + master-p_drbd_ocfs2_svn:1           : 10000    
>     + master-p_drbd_ocfs2_www:1           : 10000    
> 
> Operations:
> * Node Vindemiatrix:
>    p_o2cb: migration-threshold=1000000 fail-count=1000000
>     + (11) start: rc=5 (not installed)
>    p_drbd_ocfs2_pgsql:0: migration-threshold=1000000
>     + (6) probe: rc=8 (master)
>    p_drbd_ocfs2_backupvi:0: migration-threshold=1000000
>     + (7) probe: rc=8 (master)
>    p_drbd_ocfs2_svn:0: migration-threshold=1000000
>     + (8) probe: rc=8 (master)
>    p_drbd_ocfs2_www:0: migration-threshold=1000000
>     + (9) probe: rc=8 (master)
> * Node Malastare:
>    p_controld: migration-threshold=1000000
>     + (10) start: rc=0 (ok)
>    p_o2cb: migration-threshold=1000000
>     + (4) probe: rc=5 (not installed)
>    p_drbd_ocfs2_pgsql:1: migration-threshold=1000000
>     + (6) probe: rc=8 (master)
>    p_drbd_ocfs2_backupvi:1: migration-threshold=1000000
>     + (7) probe: rc=8 (master)
>    p_drbd_ocfs2_svn:1: migration-threshold=1000000
>     + (8) probe: rc=8 (master)
>    p_drbd_ocfs2_www:1: migration-threshold=1000000
>     + (9) probe: rc=8 (master)
> 
> Failed actions:
>     p_o2cb_start_0 (node=Vindemiatrix, call=11, rc=5, status=complete):
> not installed
>     p_o2cb_monitor_0 (node=Malastare, call=4, rc=5, status=complete):
> not installed
> 
> Thank you in advance for your help!
> 
> Kind regards.
> 
> Le 20/06/2012 14:02, Andreas Kurz a écrit :
>> On 06/20/2012 01:43 PM, David Guyot wrote:
>>> Hello, everybody.
>>>
>>> I'm trying to configure Pacemaker for using DRBD + OCFS2 storage, but
>>> I'm stuck with DRBD and controld up and o2cb doggedly displaying "not
>>> installed" errors. To do this, I followed the DRBD guide (
>>> http://www.drbd.org/users-guide-8.3/ch-ocfs2.html), with the difference
>>> that I was forced to disable DRBD fencing because it was interfering
>>> with Pacemaker fencing and stopping each nodes as often as it could.
>> Unfortunately you didn't share your Pacemaker configuration but you
>> definitely must not start any ocfs2 init script but let all be managed
>> by the cluster-manager.
>>
>> Here is a brief setup description, also mentioning the tune.ocfs2 when
>> the Pacemaker stack is running:
>>
>> http://www.hastexo.com/resources/hints-and-kinks/ocfs2-pacemaker-debianubuntu
>>
>> And once this is running as expected you really want to reactivate the
>> DRBD fencing configuration.
>>
>> Regards,
>> Andreas
>>
>>
>>
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>>
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> 
> 
> 
> 
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> 



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