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[Xen-users] Re: Restarting xend while domU are running

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Re: Restarting xend while domU are running
From: bertrand.lupart@xxxxxxxxxx (Bertrand LUPART)
Date: Tue, 9 Aug 2011 14:43:00 +0200
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> >Story:
> >- xend 3.2.1 crashed on Dom0 and didn't restarted (xend.log below)
> >- DomU are still running
> >
> >
> >Question:
> >- Is it safe to restart xend while DomU are still running? Won't xend
> >try to start allready running DomU and mess up stuff?
> >- Is it safer to log into each DomU and shutdown it manually before
> >restarting xend?
> 
> Due to a bug in the combination of Xen and kernel I've been running, 
> I've often had to restart xend with guests running. The process had 
> been :
> guest 'hangs' with 100% CPU usage
> stop xend
> kill xenconsoled
> start xend
> guest 'comes back to life'
> 
> So I'd say it's generally safe - but *don't* stop/restart xenstored !
> 
> However, while playing around with Xen4.0, I did find a setting to 
> "shutdown guests when stopping xend" - I haven't experimented yet as 
> to how that affects the situation.

On this Debian box, restarting xend did the trick.

----8<----8<----8<----
$ sudo /etc/init.d/xend start
---->8---->8---->8----

Thank you very much.

-- 
Bertrand LUPART


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