[Pacemaker] staggered startup

Andreas Kurz andreas at hastexo.com
Thu Sep 6 17:25:45 EDT 2012


On 09/05/2012 04:08 PM, James Harper wrote:
> A power failure tonight indicated that my clustered resources (xen vm's) have a dependency requirement like "make sure at least one domain controller VM is fully up and running before starting any other windows servers". Determining a status of "fully up and running" is probably complex so as a minimum I need to say "make sure resource1 has been started for 60 seconds before starting resource2".
> 
> Is this possible?

The VirtualDomain ra has the possibility to define additional monitor
scripts. You can use any script you like to check if services inside a
vm are up e.g. trying to connect to a smtp service inside the VM .... be
sure to use generous start timeout values.

Regards,
Andreas

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> 
> Thanks
> 
> James
> 
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