[Pacemaker] questions about expected behaviour stonith:meatware

Dejan Muhamedagic dejanmm at fastmail.fm
Thu Jun 16 13:28:20 UTC 2011


On Thu, Jun 16, 2011 at 07:32:30AM -0400, imnotpc wrote:
> On Thursday, June 16, 2011 02:38:51 Florian Haas wrote:
> > On 06/16/2011 12:50 AM, imnotpc wrote:
> > >> Funny but it looks fairly unequivocal to me.
> > > 
> > > Yes and no. The message is clear but unless you have someone sitting at
> > > a console 24/7 running tail on the log file, it has little value.
> > > According to the ClusterLabs stonith docs (which I just realized you
> > 
> > > wrote, haha):
> > Meatware requires operator intervention, that much is a given.
> > _Notifying_ an operator that intervention is necessary, beyond logging
> > to the console or a log file, is beyond meatware's domain.
> > 
> > However, it's extremely easy to combine meatware with automated
> > monitoring: any time a node is meatware-fencing another, it creates a
> > socket file named /var/run/meatware.<hostname>, where hostname is the
> > name of the node being fenced. Configure your automated monitoring to
> > page an operator any time this file is present, and you've solved the
> > notification problem.
> > 
> > Hope this is useful.
> 
> It was. I had seen mention of that file when I'd run meatclient on a node that 
> wasn't DC. That's actually the best idea so far as long as you only want 
> notification of fencing since it only exists on the DC node. Well, in theory. 
> It turns out I had a few stale files that hadn't been deleted and it seems that 
> was the cause of those warnings and errors in my log. I still don't get a 
> console message but that is of limited value anyway.

Perhaps somebody may want to add a send sms or mail feature to
meatware.

Thanks,

Dejan

> Thanks, Jeff
> 
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