On 08/15/2013 10:05 PM, David Gibbons wrote: > Hi There, > > I'm currently testing Gluster for possible production use. I haven't > been able to find the answer to this question in the forum arch or in > the public docs. It's possible that I don't know which keywords to > search for. > > Here's the question (more details below): let's say that one of my > bricks "fails" -- /not/ a whole node failure but a single brick > failure within the node. How do I replace a single brick on a node and > force a sync from one of the replicas? > > I have two nodes with 5 bricks each: > gluster> volume info test-a > > Volume Name: test-a > Type: Distributed-Replicate > Volume ID: e8957773-dd36-44ae-b80a-01e22c78a8b4 > Status: Started > Number of Bricks: 5 x 2 = 10 > Transport-type: tcp > Bricks: > Brick1: 10.250.4.63:/localmnt/g1lv2 > Brick2: 10.250.4.65:/localmnt/g2lv2 > Brick3: 10.250.4.63:/localmnt/g1lv3 > Brick4: 10.250.4.65:/localmnt/g2lv3 > Brick5: 10.250.4.63:/localmnt/g1lv4 > Brick6: 10.250.4.65:/localmnt/g2lv4 > Brick7: 10.250.4.63:/localmnt/g1lv5 > Brick8: 10.250.4.65:/localmnt/g2lv5 > Brick9: 10.250.4.63:/localmnt/g1lv1 > Brick10: 10.250.4.65:/localmnt/g2lv1 > > I formatted 10.250.4.65:/localmnt/g2lv5 (to simulate a "failure"). > What is the next step? I have tried various combinations of removing > and re-adding the brick, replacing the brick, etc. I read in a > previous message to this list that replace-brick was for planned > changes which makes sense, so that's probably not my next step. You must first check if the 'formatted' brick 10.250.4.65:/localmnt/g2lv5 is online using the `gluster volume status` command. If not start the volume using `gluster volume start <VOLNAME>force`. You can then use the gluster volume heal command which would copy the data from the other replica brick into your formatted brick. Hope this helps. -Ravi > > Cheers, > Dave > > > _______________________________________________ > Gluster-users mailing list > Gluster-users at gluster.org > http://supercolony.gluster.org/mailman/listinfo/gluster-users -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://supercolony.gluster.org/pipermail/gluster-users/attachments/20130816/3d8b8b5e/attachment.html>
