[Gluster-devel] Empty info file preventing glusterd from starting

Tue May 9 13:07:27 UTC 2017

Actually it is very risky if it will reproduce in production thats is why I
said it is on high priority as want to resolve it before production.

On Tue, May 9, 2017 at 6:20 PM, Atin Mukherjee <amukherj at redhat.com> wrote:

>
>
> On Tue, May 9, 2017 at 6:10 PM, ABHISHEK PALIWAL <abhishpaliwal at gmail.com>
> wrote:
>
>> Hi Atin,
>>
>> Thanks for your reply.
>>
>>
>> Its urgent because this error is very rarely reproducible we have seen
>> this 2 3 times in our system till now.
>>
>> We have delivery in near future so that we want it asap. Please try to
>> review it internally.
>>
>
> I don't think your statements justified the reason of urgency as (a) you
> have mentioned it to be *rarely* reproducible and (b) I am still waiting
> for a real use case where glusterd will go through multiple restarts in a
> loop?
>
>
>> Regards,
>> Abhishek
>>
>> On Tue, May 9, 2017 at 5:58 PM, Atin Mukherjee <amukherj at redhat.com>
>> wrote:
>>
>>>
>>>
>>> On Tue, May 9, 2017 at 3:37 PM, ABHISHEK PALIWAL <
>>> abhishpaliwal at gmail.com> wrote:
>>>
>>>> + Muthu-vingeshwaran
>>>>
>>>> On Tue, May 9, 2017 at 11:30 AM, ABHISHEK PALIWAL <
>>>> abhishpaliwal at gmail.com> wrote:
>>>>
>>>>> Hi Atin/Team,
>>>>>
>>>>> We are using gluster-3.7.6 with setup of two brick and while restart
>>>>> of system I have seen that the glusterd daemon is getting failed from start.
>>>>>
>>>>>
>>>>> At the time of analyzing the logs from etc-glusterfs.......log file I
>>>>> have received the below logs
>>>>>
>>>>>
>>>>> [2017-05-06 03:33:39.798087] I [MSGID: 100030]
>>>>> [glusterfsd.c:2348:main] 0-/usr/sbin/glusterd: Started running
>>>>> /usr/sbin/glusterd version 3.7.6 (args: /usr/sbin/glusterd -p
>>>>> /var/run/glusterd.pid --log-level INFO)
>>>>> [2017-05-06 03:33:39.807859] I [MSGID: 106478] [glusterd.c:1350:init]
>>>>> 0-management: Maximum allowed open file descriptors set to 65536
>>>>> [2017-05-06 03:33:39.807974] I [MSGID: 106479] [glusterd.c:1399:init]
>>>>> 0-management: Using /system/glusterd as working directory
>>>>> [2017-05-06 03:33:39.826833] I [MSGID: 106513]
>>>>> [glusterd-store.c:2047:glusterd_restore_op_version] 0-glusterd:
>>>>> retrieved op-version: 30706
>>>>> [2017-05-06 03:33:39.827515] E [MSGID: 106206]
>>>>> [glusterd-store.c:2562:glusterd_store_update_volinfo] 0-management:
>>>>> Failed to get next store iter
>>>>> [2017-05-06 03:33:39.827563] E [MSGID: 106207]
>>>>> [glusterd-store.c:2844:glusterd_store_retrieve_volume] 0-management:
>>>>> Failed to update volinfo for c_glusterfs volume
>>>>> [2017-05-06 03:33:39.827625] E [MSGID: 106201]
>>>>> [glusterd-store.c:3042:glusterd_store_retrieve_volumes] 0-management:
>>>>> Unable to restore volume: c_glusterfs
>>>>> [2017-05-06 03:33:39.827722] E [MSGID: 101019]
>>>>> [xlator.c:428:xlator_init] 0-management: Initialization of volume
>>>>> 'management' failed, review your volfile again
>>>>> [2017-05-06 03:33:39.827762] E [graph.c:322:glusterfs_graph_init]
>>>>> 0-management: initializing translator failed
>>>>> [2017-05-06 03:33:39.827784] E [graph.c:661:glusterfs_graph_activate]
>>>>> 0-graph: init failed
>>>>> [2017-05-06 03:33:39.828396] W [glusterfsd.c:1238:cleanup_and_exit]
>>>>> (-->/usr/sbin/glusterd(glusterfs_volumes_init-0x1b0b8) [0x1000a648]
>>>>> -->/usr/sbin/glusterd(glusterfs_process_volfp-0x1b210) [0x1000a4d8]
>>>>> -->/usr/sbin/glusterd(cleanup_and_exit-0x1beac) [0x100097ac] ) 0-:
>>>>> received signum (0), shutting down
>>>>>
>>>>
>>> Abhishek,
>>>
>>> This patch needs to be thoroughly reviewed to ensure that it doesn't
>>> cause any regression given this touches on the core store management
>>> functionality of glusterd. AFAICT, we get into an empty info file only when
>>> volume set operation is executed and in parallel one of the glusterd
>>> instance in other nodes have been brought down and whole sequence of
>>> operation happens in a loop. The test case through which you can get into
>>> this situation is not something you'd hit in production. Please help me to
>>> understand the urgency here.
>>>
>>> Also in one of the earlier thread, I did mention the workaround of this
>>> issue back to Xin through http://lists.gluster.org/piper
>>> mail/gluster-users/2017-January/029600.html
>>>
>>> "If you end up in having a 0 byte info file you'd need to copy the same info file from other node and put it there and restart glusterd"
>>>
>>>
>>>>>
>>>>> I have found one of the existing case is there and also solution patch
>>>>> is available but the status of that patch in "cannot merge". Also the
>>>>> "info" file is empty and "info.tmp" file present in "lib/glusterd/vol"
>>>>> directory.
>>>>>
>>>>> Below is the link of the existing case.
>>>>>
>>>>> https://review.gluster.org/#/c/16279/5
>>>>>
>>>>> please let me know what is the plan of community to provide the
>>>>> solution of this problem and in which version.
>>>>>
>>>>> Regards
>>>>> Abhishek Paliwal
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>>
>>>>
>>>> Regards
>>>> Abhishek Paliwal
>>>>
>>>
>>>
>>
>>
>> --
>>
>>
>>
>>
>> Regards
>> Abhishek Paliwal
>>
>
>

-- 

Regards
Abhishek Paliwal
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