Sorry, that was a typo. :( It is supposed to be moved into /var/lib/glusterd/groups/virt. I am suspecting stat-prefetch to be the culprit. So to start with, just disable performance.stat-prefetch and leave the rest of the options as they were before and run the test case.
Thank you very much for your help. :) -Krutika ----- Original Message ----- > From: "Lindsay Mathieson" <[email protected]> > To: "Krutika Dhananjay" <[email protected]> > Cc: "gluster-users" <[email protected]> > Sent: Saturday, November 14, 2015 4:56:39 PM > Subject: Re: [Gluster-users] File Corruption with shards - 100% reproducable > On 14 November 2015 at 17:30, Krutika Dhananjay < [email protected] > > wrote: > > You should be able to find a file named group-virt.example under > > /etc/glusterfs/ > > > Copy that as /var/lib/glusterd/virt. > > Doesn't seem to exist in the debian jessie apt repo, but I copied it from > here: > https://raw.githubusercontent.com/gluster/glusterfs/master/extras/group-virt.example > And I think it needed to go here: > /var/lib/glusterd/virt/group > However the good news is, I applied it and seems to have made the difference. > Freely migrating my test VM now with no corruption. Will stress test it a > bit more. > current settings are now: > gluster volume info > Volume Name: datastore1 > Type: Replicate > Volume ID: 238fddd0-a88c-4edb-8ac5-ef87c58682bf > Status: Started > Number of Bricks: 1 x 3 = 3 > Transport-type: tcp > Bricks: > Brick1: vnb.proxmox.softlog:/mnt/ext4 > Brick2: vng.proxmox.softlog:/mnt/ext4 > Brick3: vna.proxmox.softlog:/mnt/ext4 > Options Reconfigured: > cluster.server-quorum-type: server > network.remote-dio: enable > cluster.eager-lock: enable > performance.stat-prefetch: off > performance.io-cache: off > performance.read-ahead: off > performance.quick-read: off > cluster.quorum-type: auto > performance.readdir-ahead: off > features.shard: on > features.shard-block-size: 128MB > performance.strict-write-ordering: on > Thanks for all the help. If you like I can start unsetting setting until we > discover which one does the trick. > -- > Lindsay
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