Re: Gluster 3.8.10 rebalance VMs corruption

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Hi,

Yes, that's an old-ish bug. They fixed it recently, but I guess the fix
hasn't made it's way into a public release yet.
You'll have to get everything up from backups I think, been there :/


On Fri, Mar 17, 2017 at 06:44:14PM +0000, Mahdi Adnan wrote:
> Hi,
> 
> I have upgraded to Gluster 3.8.10 today and ran the add-brick procedure in a volume contains few VMs.
> After the completion of rebalance, i have rebooted the VMs, some of ran just fine, and others just crashed.
> Windows boot to recovery mode and Linux throw xfs errors and does not boot.
> I ran the test again and it happened just as the first one, but i have noticed only VMs doing disk IOs are affected by this bug.
> The VMs in power off mode started fine and even md5 of the disk file did not change after the rebalance.
> 
> anyone else can confirm this ?
> 
> 
> Volume info:
> 
> Volume Name: vmware2
> Type: Distributed-Replicate
> Volume ID: 02328d46-a285-4533-aa3a-fb9bfeb688bf
> Status: Started
> Snapshot Count: 0
> Number of Bricks: 22 x 2 = 44
> Transport-type: tcp
> Bricks:
> Brick1: gluster01:/mnt/disk1/vmware2
> Brick2: gluster03:/mnt/disk1/vmware2
> Brick3: gluster02:/mnt/disk1/vmware2
> Brick4: gluster04:/mnt/disk1/vmware2
> Brick5: gluster01:/mnt/disk2/vmware2
> Brick6: gluster03:/mnt/disk2/vmware2
> Brick7: gluster02:/mnt/disk2/vmware2
> Brick8: gluster04:/mnt/disk2/vmware2
> Brick9: gluster01:/mnt/disk3/vmware2
> Brick10: gluster03:/mnt/disk3/vmware2
> Brick11: gluster02:/mnt/disk3/vmware2
> Brick12: gluster04:/mnt/disk3/vmware2
> Brick13: gluster01:/mnt/disk4/vmware2
> Brick14: gluster03:/mnt/disk4/vmware2
> Brick15: gluster02:/mnt/disk4/vmware2
> Brick16: gluster04:/mnt/disk4/vmware2
> Brick17: gluster01:/mnt/disk5/vmware2
> Brick18: gluster03:/mnt/disk5/vmware2
> Brick19: gluster02:/mnt/disk5/vmware2
> Brick20: gluster04:/mnt/disk5/vmware2
> Brick21: gluster01:/mnt/disk6/vmware2
> Brick22: gluster03:/mnt/disk6/vmware2
> Brick23: gluster02:/mnt/disk6/vmware2
> Brick24: gluster04:/mnt/disk6/vmware2
> Brick25: gluster01:/mnt/disk7/vmware2
> Brick26: gluster03:/mnt/disk7/vmware2
> Brick27: gluster02:/mnt/disk7/vmware2
> Brick28: gluster04:/mnt/disk7/vmware2
> Brick29: gluster01:/mnt/disk8/vmware2
> Brick30: gluster03:/mnt/disk8/vmware2
> Brick31: gluster02:/mnt/disk8/vmware2
> Brick32: gluster04:/mnt/disk8/vmware2
> Brick33: gluster01:/mnt/disk9/vmware2
> Brick34: gluster03:/mnt/disk9/vmware2
> Brick35: gluster02:/mnt/disk9/vmware2
> Brick36: gluster04:/mnt/disk9/vmware2
> Brick37: gluster01:/mnt/disk10/vmware2
> Brick38: gluster03:/mnt/disk10/vmware2
> Brick39: gluster02:/mnt/disk10/vmware2
> Brick40: gluster04:/mnt/disk10/vmware2
> Brick41: gluster01:/mnt/disk11/vmware2
> Brick42: gluster03:/mnt/disk11/vmware2
> Brick43: gluster02:/mnt/disk11/vmware2
> Brick44: gluster04:/mnt/disk11/vmware2
> Options Reconfigured:
> cluster.server-quorum-type: server
> nfs.disable: on
> performance.readdir-ahead: on
> transport.address-family: inet
> performance.quick-read: off
> performance.read-ahead: off
> performance.io-cache: off
> performance.stat-prefetch: off
> cluster.eager-lock: enable
> network.remote-dio: enable
> features.shard: on
> cluster.data-self-heal-algorithm: full
> features.cache-invalidation: on
> ganesha.enable: on
> features.shard-block-size: 256MB
> client.event-threads: 2
> server.event-threads: 2
> cluster.favorite-child-policy: size
> storage.build-pgfid: off
> network.ping-timeout: 5
> cluster.enable-shared-storage: enable
> nfs-ganesha: enable
> cluster.server-quorum-ratio: 51%
> 
> 
> Adding bricks:
> gluster volume add-brick vmware2 replica 2 gluster01:/mnt/disk11/vmware2 gluster03:/mnt/disk11/vmware2 gluster02:/mnt/disk11/vmware2 gluster04:/mnt/disk11/vmware2
> 
> 
> starting fix layout:
> gluster volume rebalance vmware2 fix-layout start
> 
> Starting rebalance:
> gluster volume rebalance vmware2  start
> 
> 
> 
> --
> 
> Respectfully
> Mahdi A. Mahdi
> 

> _______________________________________________
> Gluster-users mailing list
> Gluster-users@xxxxxxxxxxx
> http://lists.gluster.org/mailman/listinfo/gluster-users


-- 
Kevin Lemonnier
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