Re: how to configure cluster to do not run resources simultaneously

On 02/09/2015 04:56 PM, Dejan Muhamedagic wrote:
 > Hi,
 >
 > On Fri, Feb 06, 2015 at 10:28:36AM +0500, Muhammad Sharfuddin wrote:
 >> pacemaker-1.1.11-0.7.53
 >> corosync-1.4.7-0.19.6
 >>
 >> resource 'app2' depends on 'app1', i.e without app1, app2 can't run.
 >>
 >> resource 'app1' is configured to run on node1, while app2 is
 >> configured to run on node2 via location rules.
 >>
 >> cluster is configured to never start the app2 atop node1.
 >>
 >> I don't want to run both the resources on node2 simultaneously. How
 >> can I configure the cluster to do not run
 >> the app2 on the node2 when cluster has to run the app1 atop
 >> node2(due to failure/unavailability of node1)
 >
 > Use a negative collocation constraint (probably with -inf) for
 > the two resources, that way the cluster will never collocate
 > them.
 >
Yup I got this advise from Mr. Alain, and it works perfectly, thanks
a lot.

colocation app1-app2-neverOnSameNode -inf: app1 app2

 >You also need to make sure that app1 always has a higher
 > score than app2.
 >
yes I have two location rules for this
location app1-node1 app1 inf: node1
location app2-node2 app2 inf: node2


 >
 > Thanks,
 >
 > Dejan
 >
 >
 >> Help me how can I achieve this.
 >>
 >> --
 >> Regards,
 >>
 >> Muhammad Sharfuddin
 >>
 >>
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 >> http://lists.linux-ha.org/mailman/listinfo/linux-ha
 >> See also: http://linux-ha.org/ReportingProblems
 > _______________________________________________
 > Linux-HA mailing list
 > [email protected]
 > http://lists.linux-ha.org/mailman/listinfo/linux-ha
 > See also: http://linux-ha.org/ReportingProblems
 >
-- 
Regards,

Muhammad Sharfuddin

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