[Linux-cluster] service state unchanged when host crashes

Martin Waite Martin.Waite at datacash.com
Wed Oct 28 11:10:07 UTC 2009


Hi Giacomo,

Given the nature of the bug, does this mean that the unpatched cluster code is unable to relocate services in the event of node failure ?

If so, how can anyone be using this ?

regards,
Martin

-----Original Message-----
From: linux-cluster-bounces at redhat.com [mailto:linux-cluster-bounces at redhat.com] On Behalf Of Giacomo Bagnoli
Sent: 28 October 2009 10:20
To: linux clustering
Subject: Re: [Linux-cluster] service state unchanged when host crashes

Il giorno mer, 28/10/2009 alle 11.03 +0100, Jakov Sosic ha scritto:
> On Tue, 27 Oct 2009 09:57:50 -0000
> "Martin Waite" <Martin.Waite at datacash.com> wrote:
> 
> > I am running Debian Lenny 64-bit.   Is that going to be a problem for
> > me ?
> 
> Well maybe. Last time I tried RedHat Cluster Suite on Debian Lenny was 
> two months ago, and then I had stumbled upon the following bug:
> 
> http://www.mail-archive.com/linux-cluster@redhat.com/msg06018.html
> 
> I don't know if they have fixed that bug... but it resembles totally 
> to your problem... Node goes down, node gets fenced, service is seen 
> as down by rgmanager, but there is no action to relocate it to a live 
> cluster member. That was a start of a project for me, so after that I 
> migrated to CentOS 5 (which is a free RHEL fork).

I've had this bug too using Gentoo and RHCS stable-2. After a bit of investigation I've found the bug and the solution (a small, tiny, trivial 2-line patch to fenced) I've already posted on RH bugzilla but got no response.
https://bugzilla.redhat.com/show_bug.cgi?id=512512

The patch worked out for me and cluster is in production from august.
Hope it helps.

--
Ing. Giacomo Bagnoli
Asidev s.r.l.
Via Osteria Bianca, 108/A 50053 Empoli (Firenze)
E-mail: g.bagnoli at asidev.com   Web: www.asidev.com




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