On Tue, Aug 23, 2011 at 03:54:35PM +0000, Daugherity, Andrew W wrote: > > Message: 7 > > Date: Thu, 11 Aug 2011 21:07:00 +0000 > > From: "Daugherity, Andrew W" <adaugher...@tamu.edu> > > To: "pacemaker@oss.clusterlabs.org" <pacemaker@oss.clusterlabs.org> > > Subject: [Pacemaker] migration fix for ocf:heartbeat:Xen > > Message-ID: <93b5e618-ad19-4993-8066-cb4f8e4ef...@tamu.edu> > > Content-Type: text/plain; charset="us-ascii" > > > > I have discovered that sometimes when migrating a VM, the migration itself > > will succeed, but the migrate_from call on the target node will fail, as > > apparently the status hasn't settled down yet. This is more likely to > > happen when stopping pacemaker on a node, causing all its VMs to migrate > > away. Migration succeeds, but then (sometimes) the status call in > > migrate_from fails, and the VM is unnecessarily stopped and started. Note > > that it is NOT a timeout problem, as the migrate_from operation (which only > > checks status) takes less than a second. > > > > I noticed the VirtualDomain RA does a loop rather than just checking the > > status once as the Xen RA does, so I patched a similar thing into the Xen > > RA, and that solved my problem. > (patch/logs snipped) > > > No comments? What does it take to get this patch accepted? I'd much rather > use the mainline version than have to reapply my patch after every HAE > update. I guess I could open an SR with Novell but this is ultimately an > upstream issue.
Indeed it is an upstream issue, though it would get from Novell upstream as well. It's just that sometimes upstream is out of free cycles, at least temporarily. Sorry for that. Cheers, Dejan > Andrew Daugherity > Systems Analyst > Division of Research, Texas A&M University > adaugher...@tamu.edu > > > _______________________________________________ > Pacemaker mailing list: Pacemaker@oss.clusterlabs.org > http://oss.clusterlabs.org/mailman/listinfo/pacemaker > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: > http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
