Hi Jake I can confirm exact the same behaviour with gluster 3.3.0 on Ubuntu 12.04. During the self-heal process the VM gets 100% I/O wait and is locked. After the self-heal the root filesystem was read-only which forced me to do a reboot and fsck. Cheers, Christian 2012/7/9 Jake Grimmett <jog at mrc-lmb.cam.ac.uk> > Dear All, > > I have a pair of Scientific Linux 6.2 servers, acting as KVM > virtualisation hosts for ~30 VM's. The VM images are stored in a replicated > gluster volume shared between the two servers. Live migration works fine, > and the sanlock prevents me from (stupidly) starting the same VM on both > machines. Each server has 10GB ethernet and a 10 disk RAID5 array. > > If I migrate all the VM's to server #1 and shutdown server #2, all works > perfectly with no interruption. When I restart server #2, the VM's freeze > while the self-heal process is running - and this healing can take a long > time. > > I'm not sure if "Granular Locking" is on. It's listed as a "technology > preview" in the Redhat Storage server 2 notes - do I need to do anything to > enable it? > > i.e. set "cluster.data-self-heal-**algorithm" to diff ? > or edit "cluster.self-heal-window-**size" ? > > any tips from other people doing similar much appreciated! > > Many thanks, > > Jake > > jog <---at---> mrc-lmb.cam.ac.uk > ______________________________**_________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://gluster.org/cgi-bin/**mailman/listinfo/gluster-users<http://gluster.org/cgi-bin/mailman/listinfo/gluster-users> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://gluster.org/pipermail/gluster-users/attachments/20120709/b8a7571e/attachment-0001.htm>
