[Gluster-users] Self-heal Problems with gluster and nfs

[Pranith Kumar Karampuri]

On 07/08/2014 02:46 PM, Norman Mähler wrote:
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> Hello again,
>
> i could resolve the self heal problems with the missing gfid files on
> one of the servers by deleting the gfid files on the other server.
>
> They had a link count of 1 which means that the file on that the gfid
> pointed was already deleted.
>
>
> We have still these errors
>
> [2014-07-08 09:09:43.564488] W
> [client-rpc-fops.c:2469:client3_3_link_cbk]
> 0-gluster_dateisystem-client-0: remote operation failed: File exists
> (00000000-0000-0000-0000-000000000000 ->
> <gfid:b338b09e-2577-45b3-82bd-032f954dd083>/lock)
>
> which appear in the glusterfshd.log and these
>
> [2014-07-08 09:13:31.198462] E
> [client-rpc-fops.c:5179:client3_3_inodelk]
> (-->/usr/lib/x86_64-linux-gnu/glusterfs/3.4.4/xlator/cluster/replicate.so(+0x466b8)
> [0x7f5d29d4e6b8]
> (-->/usr/lib/x86_64-linux-gnu/glusterfs/3.4.4/xlator/cluster/replicate.so(afr_lock_blocking+0x844)
> [0x7f5d29d4e2e4]
> (-->/usr/lib/x86_64-linux-gnu/glusterfs/3.4.4/xlator/protocol/client.so(client_inodelk+0x99)
> [0x7f5d29f8b3c9]))) 0-: Assertion failed: 0
>
> from the nfs.log.
Could you attach mount (nfs.log) and brick logs please.
Do you have files with lots of hard-links?

Pranith
>
> I think the error messages belong together but I don't have any idea
> how to solve them.
>
> Still we have got a very bad performance issue. The system load on the
> servers is above 20 and nearly no one is able to work in here on a
> client...
>
> Hope for help
> Norman
>
>
> Am 07.07.2014 15:39, schrieb Pranith Kumar Karampuri:
>> On 07/07/2014 06:58 PM, Norman Mähler wrote: Dear community,
>>
>> we have got some serious problems with our Gluster installation.
>>
>> Here is the setting:
>>
>> We have got 2 bricks (version 3.4.4) on a debian 7.5, one of them
>> with an nfs export. There are about 120 clients connecting to the
>> exported nfs. These clients are thin clients reading and writing
>> their Linux home directories from the exported nfs.
>>
>> We want to change the access of these clients one by one to access
>> via gluster client.
>>> I did not understand what you meant by this. Are you moving to
>>> glusterfs-fuse based mounts?
>>
>>
>> Here are our problems:
>>
>> In the moment we have got two types of error messages which come
>> in burts to our glusterfshd.log
>>
>> [2014-07-07 13:10:21.572487] W
>> [client-rpc-fops.c:1538:client3_3_inodelk_cbk]
>> 0-gluster_dateisystem-client-1: remote operation failed: No such
>> file or directory [2014-07-07 13:10:21.573448] W
>> [client-rpc-fops.c:471:client3_3_open_cbk]
>> 0-gluster_dateisystem-client-1: remote operation failed: No such
>> file or directory. Path:
>> <gfid:b0c4f78a-249f-4db7-9d5b-0902c7d8f6cc>
>> (00000000-0000-0000-0000-000000000000) [2014-07-07 13:10:21.573468]
>> E [afr-self-heal-data.c:1270:afr_sh_data_open_cbk]
>> 0-gluster_dateisystem-replicate-0: open of
>> <gfid:b0c4f78a-249f-4db7-9d5b-0902c7d8f6cc> failed on child
>> gluster_dateisystem-client-1 (No such file or directory)
>>
>>
>> This looks like a missing gfid file on one of the bricks. I looked
>> it up and yes the file is missing on the second brick.
>>
>> We got these messages the other way round, too (missing on
>> client-0 and the first brick).
>>
>> Is it possible to repair this one by copying the gfid file to the
>> brick where it was missing? Or ist there another way to repair it?
>>
>>
>> The second message is
>>
>> [2014-07-07 13:06:35.948738] W
>> [client-rpc-fops.c:2469:client3_3_link_cbk]
>> 0-gluster_dateisystem-client-1: remote operation failed: File
>> exists (00000000-0000-0000-0000-000000000000 ->
>> <gfid:aae47250-8f69-480c-ac75-2da2f4d21d7a>/lock)
>>
>> and I really do not know what to do with this one...
>>> Did any of the bricks went offline and came back online?
>>> Pranith
>>
>> I am really looking forward to your help because this is an active
>> system and the system load on the nfs brick is about 25 (!!)
>>
>> Thanks in advance! Norman Maehler
>>
>>
>>> _______________________________________________ Gluster-users
>>> mailing list Gluster-users at gluster.org
>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
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