[Ocfs2-users] Kernel Panic, Server not coming back up

[kevin at utahsysadmin.com]

I have two partitions with OCFS2 on the same cluster.  On two of the nodes
I have mounted one of the partitions read-only:

/dev/sdc1 on /logs type ocfs2 (rw,_netdev,noatime,heartbeat=local)
/dev/sdb1 on /data type ocfs2 (ro,_netdev,noatime,heartbeat=local)

On the admin node, I have them both mounted read-write:

/dev/sdb1 on /data type ocfs2 (rw,_netdev,noatime,heartbeat=local)
/dev/sdc1 on /logs type ocfs2 (rw,_netdev,noatime,heartbeat=local)

My concern was with writing status files for the other nodes to see.  If
the partition was mounted read-only, would that cause another node to think
that the read-only node has failed?

Thanks,

Kevin

On Mon, 05 Apr 2010 14:03:52 -0700, Sunil Mushran
<sunil.mushran at oracle.com> wrote:
> ocfs2 can handle multiple writers to the same file.
> 
> Cannot say whether it is due to the io load. All I can say
> is that it is an io error.
> 
> Unsure what /data partitions are.
> 
> Sunil
> 
> kevin at utahsysadmin.com wrote:
>> Sunil,
>>
>> Thanks for the response.  Could this be triggered by both servers trying
> to
>> write to the same log file at the same time or can OCFS2 handle that
>> situation?  Or is this simply that the VMWare software is not able to
>> handle the amount of IO?  I don't think these servers are under a lot of
>> load.
>>
>> I also forgot to mention that on nodes 1 & 2, I have the /data
> partitions
>> mounted read only.  Will that cause any problems?
>>
>> Thanks for your time.
>>
>> Kevin
>>