Hi,
On Mon, Oct 22, 2012 at 11:06:07AM +0200, Robbert Muller wrote:
> Hello,
>
> While testing a new cluster we found the following behavior which i
> discussed on #linux-ha with "andreask" afterwards and we both agree the
> behavior was wrong.
>
> bug scenario:
> 3 node cluster, 1 standby just for having 3 nodes, 2 active nodes
> when we did a power off of the machine ( similar to pulling the power
> cable from a machine ) the cluster failed to failover to the next node.
>
> This is because the following setting:
> RESETPOWERON was set to 0, so a machine powered off stays powered off
Just to make sure: RESETPOWERON was set to 0 in the configuration?
> with the current code path, a machine in the state poweroff is
> considered a failure for the stonith reset operation. which results in
> no resources are started on the second node, and the machine stays in a
> unclean state.
>
> The analogy with real hardware and a powerbar and imho correct behavior:
> ---
> If i pull the plug of node1, node 2 will fence it with the powerbar. The
> power will powercycle the socket without any result, because i pulled
> the plug. But the fencing operation is a success and all resources are
> started on the second node
> ---
>
> Patch to fix this with i hope a minimal change is attached.
Thanks for the patch. But we'll need to rework it a bit.
> After finding this bug i got ill and have to stay at home for a few
> days, so i don't have access to an environment to test this patch atm.
Get better soon!
Cheers,
Dejan
> Regards
>
> Robbert Müller
>
>
>
>
> diff -r 66f7442698e6 lib/plugins/stonith/external/vcenter
> --- a/lib/plugins/stonith/external/vcenter Mon Oct 15 15:59:57 2012 +0200
> +++ b/lib/plugins/stonith/external/vcenter Mon Oct 22 10:38:09 2012 +0200
> @@ -199,6 +199,8 @@
> if ($powerState eq "poweredOff"
> && (! exists $ENV{'RESETPOWERON'} || $ENV{'RESETPOWERON'} ne 0)) {
> $vm->PowerOnVM();
> system("ha_log.sh",
> "info", "Machine $esx:$vm->{'name'} has been powered on");
> + } elsif( $powerState eq
> "poweredOff" ) {
> + system("ha_log.sh",
> "info", "Machine $esx:$vm->{'name'} is poweredoff and RESETPOWERON was
> disabled");
> } else {
> dielog("Could not
> complete $esx:$vm->{'name'} power cycle");
> }
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