Re: How to identify a files shard?

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On 24/04/2016 2:56 PM, Krutika Dhananjay wrote:
Nope, it's not necessary for them to all have the xattr.

Thats good :)


Do you see anything at least in .glusterfs/indices/dirty on all bricks?

I checked, dirty dir empty on all bricks

I used diff3 to compare the checksums of the shards and it revealed that seven of the shards were the same on two bricks (vna & vng) and one of the shards was the same on two other bricks (vna & vnb). Fortunately none were different on all 3 bricks :)

Using the checksum as a quorum I deleted all the singleton shards (7 on vnb, 1 on vng), touched the file owner and issule a "heal full". All 8 shards were restored with matching checksums for the other two bricks. A rechack of the entire set of shards for the vm showed all 3 copies as identical and the VM itself is functioning normally.

Its one way to manually heal up shard mismatches which gluster hasn't detected, if somewhat tedious. Its a method which lends itself to automation though.


Cheers,


--
Lindsay Mathieson

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