[Pacemaker] Cluster crash

[Florian Haas]

On Wed, Feb 8, 2012 at 2:29 PM, Hugo Deprez <hugo.deprez at gmail.com> wrote:
> Dear community,
>
> I am currently running different corosync / drbd cluster using VM running on
> vmware esxi host.
> Guest Os are Debian Squeeze.
>
> the active member of the cluster just freeze the VM was unreachable.
> But the resources didn't achieved to move to the other node.
>
> My cluster has the following ressources :
>
> Resource Group: grp
>      fs-data    (ocf::heartbeat:Filesystem):
>      nagios-ip  (ocf::heartbeat:IPaddr2):
>      apache2    (ocf::heartbeat:apache):
>      nagios     (lsb:nagios3):
>      pnp        (lsb:npcd):
>
>
> I am currently troubleshooting this issue. I don't really know where to
> look. Of course I had a look at the logs, but it is pretty hard for me to
> understand what happen.

It's pretty hard for anyone else to understand _without_ logs. :)

> I noticed that the VM crash at 12:09 and that the cluster only try to move
> the ressources at  12:58, this does not make sens for me. Or maybe the host
> wasn't totaly down ?
>
> Do you have any idea how I can troubleshoot ?

Log analysis is where I would start.

> Last thing, I notice that If I start apache2 on the slave server, corosync
> didn't detect that the resource is started, could that be an issue ?

Sure it could, but Pacemaker should happily recover from that.

Cheers,
Florian

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