[Pacemaker] Group not started/stopped in correct order with -INF collocation

[Kulovits Christian - OS ITSC]

Sorry!! Yes, of course

	Corosync Cluster Engine, version '1.2.7' SVN revision '3008'
	CRM Version: 1.0.9 (da7075976b5ff0bee71074385f8fd02f296ec8a3)
	pacemaker 1.0.10-1.2.el5 - (none) x86_64
	corosync 1.2.7-1.1.el5 - (none) x86_64
	heartbeat 3.0.3-2.3.el5 - (none) x86_64

	Platform: Linux
	Kernel release: 2.6.18-164.el5
	Architecture: x86_64
	Distribution: Description:	Red Hat Enterprise Linux Server release 5.4 (Tikanga)

You can find the report here: http://dl.dropbox.com/u/30915505/AMOSreport.tar.bz2
And it is a 4-node cluster...

Regards, Christian


-----Original Message-----
From: Florian Haas [mailto:florian.haas at linbit.com] 
Sent: Dienstag, 31. Mai 2011 14:41
To: The Pacemaker cluster resource manager
Subject: Re: [Pacemaker] Group not started/stopped in correct order with -INF collocation

On 2011-05-31 14:05, Kulovits Christian - OS ITSC wrote:
> Hello,
> 
> In a 2-node cluster two groups (prod, test) are defined with a 
> collocation score="-INFINITY". When the node running the group prod 
> failed, the test group on the other node was stopped and the prod 
> group was started. After the failed node was online again, the prod 
> group was moved to the other node. BUT the test group was first 
> started, then the prod group was stopped and started on the other 
> node. There was a very short time where both groups were active on the 
> same node. We use a RA to set the home directory for some users, and 
> so the path gets first set and then unset by this sequence. There is 
> no order defined between these groups to enable parallel starts on different nodes.
> 
> Is this a definition problem or a bug. Nevertheless this behavior 
> looks strange for me!

Version information would be tremendously helpful, as would an hb_report tarball uploaded to Dropbox or any other publicly accessible location.

Cheers,
Florian


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