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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> _______________________________________________
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>
--
Regards,

Muhammad Sharfuddin

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