Sorry for the slow response. Your hunch was right. It seems to be a problem between tiering and sharding.
I untiered the volume and the symptom vanished. I then deleted and recreated the volume entirely (without tiering) in order to cleanup the orphaned shards. -Walter Deignan -Uline IT, Systems Architect From: Nithya Balachandran <[email protected]> To: Walter Deignan <[email protected]> Cc: gluster-users <[email protected]> Date: 05/17/2017 10:17 PM Subject: Re: [Gluster-users] Deleting large files on sharded volume hangs and doesn't delete shards I don't think we have tested shards with a tiered volume. Do you see such issues on non-tiered sharded volumes? Regards, Nithya On 18 May 2017 at 00:51, Walter Deignan <[email protected]> wrote: I have a reproducible issue where attempting to delete a file large enough to have been sharded hangs. I can't kill the 'rm' command and eventually am forced to reboot the client (which in this case is also part of the gluster cluster). After the node finishes rebooting I can see that while the file front-end is gone, the back-end shards are still present. Is this a known issue? Any way to get around it? ---------------------------------------------- [root@dc-vihi19 ~]# gluster volume info gv0 Volume Name: gv0 Type: Tier Volume ID: d42e366f-381d-4787-bcc5-cb6770cb7d58 Status: Started Snapshot Count: 0 Number of Bricks: 24 Transport-type: tcp Hot Tier : Hot Tier Type : Distributed-Replicate Number of Bricks: 4 x 2 = 8 Brick1: dc-vihi71:/gluster/bricks/brick4/data Brick2: dc-vihi19:/gluster/bricks/brick4/data Brick3: dc-vihi70:/gluster/bricks/brick4/data Brick4: dc-vihi19:/gluster/bricks/brick3/data Brick5: dc-vihi71:/gluster/bricks/brick3/data Brick6: dc-vihi19:/gluster/bricks/brick2/data Brick7: dc-vihi70:/gluster/bricks/brick3/data Brick8: dc-vihi19:/gluster/bricks/brick1/data Cold Tier: Cold Tier Type : Distributed-Replicate Number of Bricks: 8 x 2 = 16 Brick9: dc-vihi19:/gluster/bricks/brick5/data Brick10: dc-vihi70:/gluster/bricks/brick1/data Brick11: dc-vihi19:/gluster/bricks/brick6/data Brick12: dc-vihi71:/gluster/bricks/brick1/data Brick13: dc-vihi19:/gluster/bricks/brick7/data Brick14: dc-vihi70:/gluster/bricks/brick2/data Brick15: dc-vihi19:/gluster/bricks/brick8/data Brick16: dc-vihi71:/gluster/bricks/brick2/data Brick17: dc-vihi19:/gluster/bricks/brick9/data Brick18: dc-vihi70:/gluster/bricks/brick5/data Brick19: dc-vihi19:/gluster/bricks/brick10/data Brick20: dc-vihi71:/gluster/bricks/brick5/data Brick21: dc-vihi19:/gluster/bricks/brick11/data Brick22: dc-vihi70:/gluster/bricks/brick6/data Brick23: dc-vihi19:/gluster/bricks/brick12/data Brick24: dc-vihi71:/gluster/bricks/brick6/data Options Reconfigured: nfs.disable: on transport.address-family: inet features.ctr-enabled: on cluster.tier-mode: cache features.shard: on features.shard-block-size: 512MB network.ping-timeout: 5 cluster.server-quorum-ratio: 51% [root@dc-vihi19 temp]# ls -lh total 26G -rw-rw-rw-. 1 root root 31G May 17 10:38 win7.qcow2 [root@dc-vihi19 temp]# getfattr -n glusterfs.gfid.string win7.qcow2 # file: win7.qcow2 glusterfs.gfid.string="7f4a0fea-72c0-41e4-97a5-6297be0a9142" [root@dc-vihi19 temp]# rm win7.qcow2 rm: remove regular file âwin7.qcow2â? y *Process hangs and can't be killed. A reboot later...* login as: root Authenticating with public key "rsa-key-20170510" Last login: Wed May 17 14:04:29 2017 from ****** [root@dc-vihi19 ~]# find /gluster/bricks -name "7f4a0fea-72c0-41e4-97a5-6297be0a9142*" /gluster/bricks/brick1/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.23 /gluster/bricks/brick1/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.35 /gluster/bricks/brick2/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.52 /gluster/bricks/brick2/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.29 /gluster/bricks/brick2/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.22 /gluster/bricks/brick2/data/.shard/7f4a0fea-72c0-41e4-97a5-6297be0a9142.24 and so on... -Walter Deignan -Uline IT, Systems Architect _______________________________________________ Gluster-users mailing list [email protected] http://lists.gluster.org/mailman/listinfo/gluster-users
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