[Ocfs2-users] Question about eth communication for ocfs2
Karim Alkhayer
kkhayer at gmail.com
Tue Feb 8 05:21:25 PST 2011
In a two-node setup, node 0 will survive, because that's the node with the
lowest node number (as defined in cluster.conf).
You may want to think about adding a third [FAKE] node; if this is a
feasible workaround, then only the troublesome node should fence itself.
-----Original Message-----
From: ocfs2-users-bounces at oss.oracle.com
[mailto:ocfs2-users-bounces at oss.oracle.com] On Behalf Of Alain.Moulle
Sent: Tuesday, February 08, 2011 3:06 PM
To: ocfs2-users at oss.oracle.com
Subject: Re: [Ocfs2-users] Question about eth communication for ocfs2
Hi,
I have give it a try :
linkcom PtP between node1 and node2
IO traffic on OCFS2 on both sides
unplug the PtP cable from both nodes
=>both IO traffic on OCFS2 are stalled
=>after a short while, node2 self-fences, =>whereas a short while after the
self-fence of node2 , IO traffic
on node1 starts again
So in fact, you confirm that there is no "slave or master" question around
this self-fence, but it will always be the larger node number in
/etc/ocfs2/cluster.conf which will self-fence ?
Thanks for your confirmation.
Alain
Sunil Mushran a écrit :
>>
>> And a relative question :
>>
>> if there is a network breakdown on the only communication link
>> for
>> ocfs2
>> in a two-nodes cluster, what is the behavior :
>>
>> - will both nodes decide to suicide ?
>
> In a 2 node cluster, if the commlink breaks, the larger node number
> fences.
_______________________________________________
Ocfs2-users mailing list
<mailto:Ocfs2-users at oss.oracle.com> Ocfs2-users at oss.oracle.com
<http://oss.oracle.com/mailman/listinfo/ocfs2-users>
http://oss.oracle.com/mailman/listinfo/ocfs2-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20110208/5f2ddcd6/attachment-0001.html
More information about the Ocfs2-users
mailing list