[Gluster-users] Client un-mounting since upgrade to 3.12.9-1 version

Milind Changire mchangir at redhat.com
Tue Jun 12 15:14:48 UTC 2018 

Kashif,
Could you also send over the client/mount log file as Vijay suggested ?
Or maybe the lines with the crash backtrace lines

Also, you've mentioned that you straced glusterd, but when you ran gdb, you
ran it over /usr/sbin/glusterfs


On Tue, Jun 12, 2018 at 8:19 PM, Vijay Bellur <vbellur at redhat.com> wrote:

>
>
> On Tue, Jun 12, 2018 at 7:40 AM, mohammad kashif <kashif.alig at gmail.com>
> wrote:
>
>> Hi Milind
>>
>> The operating system is Scientific Linux 6 which is based on RHEL6. The
>> cpu arch is Intel x86_64.
>>
>> I will send you a separate email with link to core dump.
>>
>
>
> You could also grep for crash in the client log file and the lines
> following crash would have a backtrace in most cases.
>
> HTH,
> Vijay
>
>
>>
>> Thanks for your help.
>>
>> Kashif
>>
>>
>> On Tue, Jun 12, 2018 at 3:16 PM, Milind Changire <mchangir at redhat.com>
>> wrote:
>>
>>> Kashif,
>>> Could you share the core dump via Google Drive or something similar
>>>
>>> Also, let me know the CPU arch and OS Distribution on which you are
>>> running gluster.
>>>
>>> If you've installed the glusterfs-debuginfo package, you'll also get the
>>> source lines in the backtrace via gdb
>>>
>>>
>>>
>>> On Tue, Jun 12, 2018 at 5:59 PM, mohammad kashif <kashif.alig at gmail.com>
>>> wrote:
>>>
>>>> Hi Milind, Vijay
>>>>
>>>> Thanks, I have some more information now as I straced glusterd on client
>>>>
>>>> 138544      0.000131 mprotect(0x7f2f70785000, 4096,
>>>> PROT_READ|PROT_WRITE) = 0 <0.000026>
>>>> 138544      0.000128 mprotect(0x7f2f70786000, 4096,
>>>> PROT_READ|PROT_WRITE) = 0 <0.000027>
>>>> 138544      0.000126 mprotect(0x7f2f70787000, 4096,
>>>> PROT_READ|PROT_WRITE) = 0 <0.000027>
>>>> 138544      0.000124 --- SIGSEGV {si_signo=SIGSEGV,
>>>> si_code=SEGV_ACCERR, si_addr=0x7f2f7c60ef88} ---
>>>> 138544      0.000051 --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL,
>>>> si_addr=0} ---
>>>> 138551      0.105048 +++ killed by SIGSEGV (core dumped) +++
>>>> 138550      0.000041 +++ killed by SIGSEGV (core dumped) +++
>>>> 138547      0.000008 +++ killed by SIGSEGV (core dumped) +++
>>>> 138546      0.000007 +++ killed by SIGSEGV (core dumped) +++
>>>> 138545      0.000007 +++ killed by SIGSEGV (core dumped) +++
>>>> 138544      0.000008 +++ killed by SIGSEGV (core dumped) +++
>>>> 138543      0.000007 +++ killed by SIGSEGV (core dumped) +++
>>>>
>>>> As for I understand that somehow gluster is trying to access memory in
>>>> appropriate manner and kernel sends SIGSEGV
>>>>
>>>> I also got the core dump. I am trying gdb first time so I am not sure
>>>> whether I am using it correctly
>>>>
>>>> gdb /usr/sbin/glusterfs core.138536
>>>>
>>>> It just tell me that program terminated with signal 11, segmentation
>>>> fault .
>>>>
>>>> The problem is not limited to one client but happening to many clients.
>>>>
>>>> I will really appreciate any help as whole file system has become
>>>> unusable
>>>>
>>>> Thanks
>>>>
>>>> Kashif
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Jun 12, 2018 at 12:26 PM, Milind Changire <mchangir at redhat.com>
>>>> wrote:
>>>>
>>>>> Kashif,
>>>>> You can change the log level by:
>>>>> $ gluster volume set <vol> diagnostics.brick-log-level TRACE
>>>>> $ gluster volume set <vol> diagnostics.client-log-level TRACE
>>>>>
>>>>> and see how things fare
>>>>>
>>>>> If you want fewer logs you can change the log-level to DEBUG instead
>>>>> of TRACE.
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Jun 12, 2018 at 3:37 PM, mohammad kashif <
>>>>> kashif.alig at gmail.com> wrote:
>>>>>
>>>>>> Hi Vijay
>>>>>>
>>>>>> Now it is unmounting every 30 mins !
>>>>>>
>>>>>> The server log at /var/log/glusterfs/bricks/glusteratlas-brics001-gv0.log
>>>>>> have this line only
>>>>>>
>>>>>> 2018-06-12 09:53:19.303102] I [MSGID: 115013]
>>>>>> [server-helpers.c:289:do_fd_cleanup] 0-atlasglust-server: fd cleanup
>>>>>> on /atlas/atlasdata/zgubic/hmumu/histograms/v14.3/Signal
>>>>>> [2018-06-12 09:53:19.306190] I [MSGID: 101055]
>>>>>> [client_t.c:443:gf_client_unref] 0-atlasglust-server: Shutting down
>>>>>> connection <server-name> -2224879-2018/06/12-09:51:01:4
>>>>>> 60889-atlasglust-client-0-0-0
>>>>>>
>>>>>> There is no other information. Is there any way to increase log
>>>>>> verbosity?
>>>>>>
>>>>>> on the client
>>>>>>
>>>>>> 2018-06-12 09:51:01.744980] I [MSGID: 114057]
>>>>>> [client-handshake.c:1478:select_server_supported_programs]
>>>>>> 0-atlasglust-client-5: Using Program GlusterFS 3.3, Num (1298437), Version
>>>>>> (330)
>>>>>> [2018-06-12 09:51:01.746508] I [MSGID: 114046]
>>>>>> [client-handshake.c:1231:client_setvolume_cbk]
>>>>>> 0-atlasglust-client-5: Connected to atlasglust-client-5, attached to remote
>>>>>> volume '/glusteratlas/brick006/gv0'.
>>>>>> [2018-06-12 09:51:01.746543] I [MSGID: 114047]
>>>>>> [client-handshake.c:1242:client_setvolume_cbk]
>>>>>> 0-atlasglust-client-5: Server and Client lk-version numbers are not same,
>>>>>> reopening the fds
>>>>>> [2018-06-12 09:51:01.746814] I [MSGID: 114035]
>>>>>> [client-handshake.c:202:client_set_lk_version_cbk]
>>>>>> 0-atlasglust-client-5: Server lk version = 1
>>>>>> [2018-06-12 09:51:01.748449] I [MSGID: 114057]
>>>>>> [client-handshake.c:1478:select_server_supported_programs]
>>>>>> 0-atlasglust-client-6: Using Program GlusterFS 3.3, Num (1298437), Version
>>>>>> (330)
>>>>>> [2018-06-12 09:51:01.750219] I [MSGID: 114046]
>>>>>> [client-handshake.c:1231:client_setvolume_cbk]
>>>>>> 0-atlasglust-client-6: Connected to atlasglust-client-6, attached to remote
>>>>>> volume '/glusteratlas/brick007/gv0'.
>>>>>> [2018-06-12 09:51:01.750261] I [MSGID: 114047]
>>>>>> [client-handshake.c:1242:client_setvolume_cbk]
>>>>>> 0-atlasglust-client-6: Server and Client lk-version numbers are not same,
>>>>>> reopening the fds
>>>>>> [2018-06-12 09:51:01.750503] I [MSGID: 114035]
>>>>>> [client-handshake.c:202:client_set_lk_version_cbk]
>>>>>> 0-atlasglust-client-6: Server lk version = 1
>>>>>> [2018-06-12 09:51:01.752207] I [fuse-bridge.c:4205:fuse_init]
>>>>>> 0-glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.24 kernel
>>>>>> 7.14
>>>>>> [2018-06-12 09:51:01.752261] I [fuse-bridge.c:4835:fuse_graph_sync]
>>>>>> 0-fuse: switched to graph 0
>>>>>>
>>>>>>
>>>>>> is there a problem with server and client 1k version?
>>>>>>
>>>>>> Thanks for your help.
>>>>>>
>>>>>> Kashif
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Jun 11, 2018 at 11:52 PM, Vijay Bellur <vbellur at redhat.com>
>>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Jun 11, 2018 at 8:50 AM, mohammad kashif <
>>>>>>> kashif.alig at gmail.com> wrote:
>>>>>>>
>>>>>>>> Hi
>>>>>>>>
>>>>>>>> Since I have updated our gluster server and client to latest
>>>>>>>> version 3.12.9-1, I am having this issue of gluster getting unmounted from
>>>>>>>> client very regularly. It was not a problem before update.
>>>>>>>>
>>>>>>>> Its a distributed file system with no replication. We have seven
>>>>>>>> servers totaling around 480TB data. Its 97% full.
>>>>>>>>
>>>>>>>> I am using following config on server
>>>>>>>>
>>>>>>>>
>>>>>>>> gluster volume set atlasglust features.cache-invalidation on
>>>>>>>> gluster volume set atlasglust features.cache-invalidation-timeout
>>>>>>>> 600
>>>>>>>> gluster volume set atlasglust performance.stat-prefetch on
>>>>>>>> gluster volume set atlasglust performance.cache-invalidation on
>>>>>>>> gluster volume set atlasglust performance.md-cache-timeout 600
>>>>>>>> gluster volume set atlasglust performance.parallel-readdir on
>>>>>>>> gluster volume set atlasglust performance.cache-size 1GB
>>>>>>>> gluster volume set atlasglust performance.client-io-threads on
>>>>>>>> gluster volume set atlasglust cluster.lookup-optimize on
>>>>>>>> gluster volume set atlasglust performance.stat-prefetch on
>>>>>>>> gluster volume set atlasglust client.event-threads 4
>>>>>>>> gluster volume set atlasglust server.event-threads 4
>>>>>>>>
>>>>>>>> clients are mounted with this option
>>>>>>>>
>>>>>>>> defaults,direct-io-mode=disable,attribute-timeout=600,entry-
>>>>>>>> timeout=600,negative-timeout=600,fopen-keep-cache,rw,_netdev
>>>>>>>>
>>>>>>>> I can't see anything in the log file. Can someone suggest that how
>>>>>>>> to troubleshoot this issue?
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> Can you please share the log file? Checking for messages related to
>>>>>>> disconnections/crashes in the log file would be a good way to start
>>>>>>> troubleshooting the problem.
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Vijay
>>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Gluster-users mailing list
>>>>>> Gluster-users at gluster.org
>>>>>> http://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Milind
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Milind
>>>
>>>
>>
>


-- 
Milind
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20180612/60db483f/attachment.html>

More information about the Gluster-users mailing list