[Gluster-users] gluster fs hangs on certain operations

Sun Mar 17 13:39:20 UTC 2013

To respond to myself: after about 18 hours, self-heal seemed to finish. I then unmounted the gluster directory on all machines and restarted the gluster daemon and it all seems fine.

This is the second time this has happened to us in about six weeks. The first time was after one of the servers was down for a few days, but Friday's incident seemed to be provoked by heavy usage of the file system and not by any disruption to the network or service.  In the previous incident, there weren't any suggestions of problems either. 

On 15 Mar 2013, at 1:49 PM, Scott Hazelhurst wrote:

> 
> Dear all
> 
> We periodically run into serious problems where certain operations cause hanging. For example, doing an ls on a directory. This is a recurrent problem and serious enough for the feasibility of what we are doing
> 
> We are running  gluster 3.3.1 on SL 6.3. The bricks are formatted ext3
> 
> Our configuration is
> 
> Volume Name: A01
> Type: Distributed-Replicate
> Volume ID: dc0f100f-9e25-4559-9e38-4b14c66ed490
> Status: Started
> Number of Bricks: 3 x 2 = 6
> Transport-type: tcp
> Bricks:
> 
> 
> The problem does seem to related to heal-fail. When I do a ask to see a heal info I get the following which seems to indicate repeated attempt to self-heal
> 
> 
> [root at n05 ~]# gluster volume heal A01 info heal-failed
> Gathering Heal info on volume A01 has been successful
> 
> Brick n01:/export/brickA01_1
> Number of entries: 0
> 
> Brick n03:/export/brickA01_1
> Number of entries: 0
> 
> Brick n112:/export/brickA01_1
> Number of entries: 0
> 
> Brick n113:/export/brickA01_1
> Number of entries: 0
> 
> Brick n105:/export/brickA01_1
> Number of entries: 57
> at                    path on brick
> -----------------------------------
> 2013-03-15 13:39:05 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 13:29:05 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 13:29:05 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 13:19:05 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 13:19:05 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 13:09:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 13:09:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:59:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:59:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:49:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:49:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:39:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:39:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:29:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:29:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:19:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:19:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 12:09:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 12:09:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:59:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:59:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:49:04 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:49:04 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:39:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:39:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:29:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:29:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:19:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:19:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 11:09:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 11:09:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:59:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:59:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:49:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:49:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:39:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:39:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:29:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:29:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:19:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:19:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 10:09:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 10:09:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:59:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:59:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:49:03 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:49:03 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:39:02 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:39:02 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:29:02 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:29:02 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:19:02 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:19:02 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 09:09:02 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 09:09:02 /magd/1k/2013/1000-all_CLEAN.fam
> 2013-03-15 08:59:02 /magd/1k/2013/1000-all_CLEAN.bim
> 2013-03-15 08:59:02 /magd/1k/2013/1000-all_CLEAN.fam
> 
> The log files lists requests to do heal.
> 
> I have looked at the underlying bricks where the files are and they seem fine.
> 
> Any help would be gratefully received.
> 
> Many thanks
> 
> Scott
> 
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