[Ocfs2-tools-devel] o2hbmonitor - the third approach

Joel Becker Joel.Becker at oracle.com
Fri Dec 3 16:19:53 PST 2010


On Thu, Dec 02, 2010 at 09:55:58PM -0800, Sunil Mushran wrote:
> On 12/02/2010 06:45 PM, Joel Becker wrote:
> >On Thu, Dec 02, 2010 at 06:33:49PM -0800, Sunil Mushran wrote:
> >>So we have two approaches of ensuring only one instance runs. The links
> >>to the two have been posted below.
> >>
> >>http://oss.oracle.com/pipermail/ocfs2-tools-devel/2010-November/003605.html
> >>http://oss.oracle.com/pipermail/ocfs2-tools-devel/2010-November/003619.html
> >>
> >>I prefer semaphores but I like the tangibility of the file approach.
> >>
> >>Luckily we can get both with named semaphores.
> >Do these work on NFS?
> 
> I am not sure if NFS has any role to play. Or am I missing something?

	I was thinking of nfsroot, but named semaphores are on a
pseudofs, not /, so it doesn't matter.

Joel

-- 

"The doctrine of human equality reposes on this: that there is no
 man really clever who has not found that he is stupid."
	- Gilbert K. Chesterson

Joel Becker
Senior Development Manager
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127



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