[Linux-cluster] Fenced node never reboots properly

[Jeroen van den Horn]

In response to Lon's suggestion I modified the fence_vmware code and set 
the type of reset to HARD - cluster node now resets properly. Remaining 
issue is that under VMWare we are still experiencing performance issues. 
It's as if a node in the cluster starts 'lagging behind' (also the 
system clock starts drifting) and that after some time one of the nodes 
declares the other dead.

Does anybody have any pointers towards performance issues and/or clock 
drifting with GFS on virtual machines?

Regards,
Jeroen

> I'm using fence_vmware which I downloaded from some CVS repository. 
> Good to hear that that is the issue - I'll take a look at the source 
> and see whether the VMWare API support some sort of 'hard reset'.
>
> Jeroen
>
> Lon Hohberger wrote:
>> On Thu, Mar 29, 2007 at 10:04:00AM +0200, Jeroen van den Horn wrote:
>>   
>>> However during shutdown node 2 executes /etc/rc6.d/S31umountnfs (it's a 
>>> Debian system) which also attempts to unmount the GFS disk - result: 
>>> kernel OOPS. The system continues shutdown until it says 'Will now 
>>> restart.' but that's the end of it. I've tried setting the 
>>> /proc/sys/kernel/panic and added 'panic=5' to the kernel boot options 
>>> but to no avail.
>>>
>>> I'm really at a loss here - does anybody have any suggestions on how to 
>>> solve this problem?
>>>     
>>
>> Yes, it's supposed to be killed (immediately) when fenced, not
>> gracefully attempting to shut down.  What fencing agent are you using?
>> It sounds like there's a bug.
>>
>> -- Lon
>>
>>   
>
> ------------------------------------------------------------------------
>
> --
> Linux-cluster mailing list
> Linux-cluster at redhat.com
> https://www.redhat.com/mailman/listinfo/linux-cluster

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/linux-cluster/attachments/20070330/32ce147a/attachment.htm>