[Pacemaker] questions about expected behaviour stonith:meatware

Dejan Muhamedagic dejanmm at fastmail.fm
Fri Jun 17 11:49:11 CET 2011


On Thu, Jun 16, 2011 at 10:31:44AM -0400, imnotpc wrote:
> On Thursday, June 16, 2011 09:28:20 Dejan Muhamedagic wrote:
> > 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.
> 
> Can you tell me where the current dev source code for meatware and MailTo is 
> located? I'd be willing to take a look and see if this is something I could 
> do.

The repository (mercurial) is at hg.linux-ha.org/glue. meatware
is in lib/plugins/stonith.

The resource agents repository (git) is at
https://github.com/ClusterLabs/resource-agents
MailTo is in the heartbeat directory.

Thanks,

Dejan

> Jeff
> 
> 

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