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

[Bruno MACADRE]

Hi,

	I don't known if you solved your problem but I just have the same 
behavior on my fresh installed pacemaker.

	With the 2 lines :
p_o2cb:1_monitor_0 (node=nas1, call=10, rc=5,status=complete): not installed
p_o2cb:0_monitor_0 (node=nas2, call=10, rc=5, status=complete): not 
installed

	After some tries, I've found a bug in the resource agent ocf:pacemaker:o2cb

	When this agent start, his first action is to do a 'o2cb_monitor' to 
check if o2cb is already started. If not (ie $? == $OCF_NOT_RUNNING) it 
load all needed adn finally start.

	The bug is that 'o2cb_monitor' return $OCF_NOT_RUNNING if something is 
missing, except for the module 'ocfs2_user_stack' which he returns 
$OCF_ERR_INSTALLED. So if the module 'ocfs2_user_stack' is not loaded 
before starting ocf:pacemaker:o2cb resource agent it fails to start with 
'not installed' error.

	The workaround I've just find is to place 'ocfs2_user_stack' in my 
/etc/modules on all nodes and all works fine.

	I hope I helped someone and this bug was corrected in future release of 
o2cb RA.

For information :
	. OS : Ubuntu Server 12.04 x64
	. Pacemaker : 1.1.6
	. Stack : cman 3.1.7

	Regards,
	Bruno

-- 

Bruno MACADRE
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  Ingénieur Systèmes et Réseau     | Systems and Network Engineer
  Département Informatique         | Department of computer science
  Responsable Réseau et Téléphonie | Telecom and Network Manager
  Université de Rouen              | University of Rouen
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