[Gluster-users] Geo Replication stops replicating

deepu srinivasan sdeepugd at gmail.com
Tue Jun 4 19:36:14 UTC 2019


Thankyou Kotresh

On Tue, Jun 4, 2019, 11:20 PM Kotresh Hiremath Ravishankar <
khiremat at redhat.com> wrote:

> Ccing Sunny, who was investing similar issue.
>
> On Tue, Jun 4, 2019 at 5:46 PM deepu srinivasan <sdeepugd at gmail.com>
> wrote:
>
>> Have already added the path in bashrc . Still in faulty state
>>
>> On Tue, Jun 4, 2019, 5:27 PM Kotresh Hiremath Ravishankar <
>> khiremat at redhat.com> wrote:
>>
>>> could you please try adding /usr/sbin to $PATH for user 'sas'? If it's
>>> bash, add 'export PATH=/usr/sbin:$PATH' in
>>> /home/sas/.bashrc
>>>
>>> On Tue, Jun 4, 2019 at 5:24 PM deepu srinivasan <sdeepugd at gmail.com>
>>> wrote:
>>>
>>>> Hi Kortesh
>>>> Please find the logs of the above error
>>>> *Master log snippet*
>>>>
>>>>> [2019-06-04 11:52:09.254731] I [resource(worker
>>>>> /home/sas/gluster/data/code-misc):1379:connect_remote] SSH: Initializing
>>>>> SSH connection between master and slave...
>>>>>  [2019-06-04 11:52:09.308923] D [repce(worker
>>>>> /home/sas/gluster/data/code-misc):196:push] RepceClient: call
>>>>> 89724:139652759443264:1559649129.31 __repce_version__() ...
>>>>>  [2019-06-04 11:52:09.602792] E [syncdutils(worker
>>>>> /home/sas/gluster/data/code-misc):311:log_raise_exception] <top>:
>>>>> connection to peer is broken
>>>>>  [2019-06-04 11:52:09.603312] E [syncdutils(worker
>>>>> /home/sas/gluster/data/code-misc):805:errlog] Popen: command returned error
>>>>>   cmd=ssh -oPasswordAuthentication=no -oStrictHostKeyChecking=no -i
>>>>> /var/lib/ glusterd/geo-replication/secret.pem -p 22 -oControlMaster=auto -S
>>>>> /tmp/gsyncd-aux-ssh-4aL2tc/d893f66e0addc32f7d0080bb503f5185.sock
>>>>> sas at 192.168.185.107 /usr/libexec/glusterfs/gsyncd slave code-misc sas@
>>>>>   192.168.185.107::code-misc --master-node 192.168.185.106
>>>>> --master-node-id 851b64d0-d885-4ae9-9b38-ab5b15db0fec --master-brick
>>>>> /home/sas/gluster/data/code-misc --local-node 192.168.185.122 --local-node-
>>>>>   id bcaa7af6-c3a1-4411-8e99-4ebecb32eb6a --slave-timeout 120
>>>>> --slave-log-level DEBUG --slave-gluster-log-level INFO
>>>>> --slave-gluster-command-dir /usr/sbin   error=1
>>>>>  [2019-06-04 11:52:09.614996] I [repce(agent
>>>>> /home/sas/gluster/data/code-misc):97:service_loop] RepceServer: terminating
>>>>> on reaching EOF.
>>>>>  [2019-06-04 11:52:09.615545] D [monitor(monitor):271:monitor]
>>>>> Monitor: worker(/home/sas/gluster/data/code-misc) connected
>>>>>  [2019-06-04 11:52:09.616528] I [monitor(monitor):278:monitor]
>>>>> Monitor: worker died in startup phase brick=/home/sas/gluster/data/code-misc
>>>>>  [2019-06-04 11:52:09.619391] I
>>>>> [gsyncdstatus(monitor):248:set_worker_status] GeorepStatus: Worker Status
>>>>> Change status=Faulty
>>>>>
>>>>
>>>> *Slave log snippet*
>>>>
>>>>> [2019-06-04 11:50:09.782668] E [syncdutils(slave
>>>>> 192.168.185.106/home/sas/gluster/data/code-misc):809:logerr] Popen:
>>>>> /usr/sbin/gluster> 2 : failed with this errno (No such file or directory)
>>>>> [2019-06-04 11:50:11.188167] W [gsyncd(slave
>>>>> 192.168.185.125/home/sas/gluster/data/code-misc):305:main] <top>:
>>>>> Session config file not exists, using the default config
>>>>> path=/var/lib/glusterd/geo-replication/code-misc_192.168.185.107_code-misc/gsyncd.conf
>>>>> [2019-06-04 11:50:11.201070] I [resource(slave
>>>>> 192.168.185.125/home/sas/gluster/data/code-misc):1098:connect]
>>>>> GLUSTER: Mounting gluster volume locally...
>>>>> [2019-06-04 11:50:11.271231] E [resource(slave
>>>>> 192.168.185.125/home/sas/gluster/data/code-misc):1006:handle_mounter]
>>>>> MountbrokerMounter: glusterd answered mnt=
>>>>> [2019-06-04 11:50:11.271998] E [syncdutils(slave
>>>>> 192.168.185.125/home/sas/gluster/data/code-misc):805:errlog] Popen:
>>>>> command returned error cmd=/usr/sbin/gluster --remote-host=localhost
>>>>> system:: mount sas user-map-root=sas aux-gfid-mount acl log-level=INFO
>>>>> log-file=/var/log/glusterfs/geo-replication-slaves/code-misc_192.168.185.107_code-misc/mnt-192.168.185.125-home-sas-gluster-data-code-misc.log
>>>>> volfile-server=localhost volfile-id=code-misc client-pid=-1 error=1
>>>>> [2019-06-04 11:50:11.272113] E [syncdutils(slave
>>>>> 192.168.185.125/home/sas/gluster/data/code-misc):809:logerr] Popen:
>>>>> /usr/sbin/gluster> 2 : failed with this errno (No such file or directory)
>>>>
>>>>
>>>> On Tue, Jun 4, 2019 at 5:10 PM deepu srinivasan <sdeepugd at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi
>>>>> As discussed I have upgraded gluster from 4.1 to 6.2 version. But the
>>>>> Geo replication failed to start.
>>>>> Stays in faulty state
>>>>>
>>>>> On Fri, May 31, 2019, 5:32 PM deepu srinivasan <sdeepugd at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Checked the data. It remains in 2708. No progress.
>>>>>>
>>>>>> On Fri, May 31, 2019 at 4:36 PM Kotresh Hiremath Ravishankar <
>>>>>> khiremat at redhat.com> wrote:
>>>>>>
>>>>>>> That means it could be working and the defunct process might be some
>>>>>>> old zombie one. Could you check, that data progress ?
>>>>>>>
>>>>>>> On Fri, May 31, 2019 at 4:29 PM deepu srinivasan <sdeepugd at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hi
>>>>>>>> When i change the rsync option the rsync process doesnt seem to
>>>>>>>> start . Only a defunt process is listed in ps aux. Only when i set rsync
>>>>>>>> option to " " and restart all the process the rsync process is listed in ps
>>>>>>>> aux.
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, May 31, 2019 at 4:23 PM Kotresh Hiremath Ravishankar <
>>>>>>>> khiremat at redhat.com> wrote:
>>>>>>>>
>>>>>>>>> Yes, rsync config option should have fixed this issue.
>>>>>>>>>
>>>>>>>>> Could you share the output of the following?
>>>>>>>>>
>>>>>>>>> 1. gluster volume geo-replication <MASTERVOL>
>>>>>>>>> <SLAVEHOST>::<SLAVEVOL> config rsync-options
>>>>>>>>> 2. ps -ef | grep rsync
>>>>>>>>>
>>>>>>>>> On Fri, May 31, 2019 at 4:11 PM deepu srinivasan <
>>>>>>>>> sdeepugd at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Done.
>>>>>>>>>> We got the following result .
>>>>>>>>>>
>>>>>>>>>>> 1559298781.338234 write(2, "rsync: link_stat
>>>>>>>>>>> \"/tmp/gsyncd-aux-mount-EEJ_sY/.gfid/3fa6aed8-802e-4efe-9903-8bc171176d88\"
>>>>>>>>>>> failed: No such file or directory (2)", 128
>>>>>>>>>>
>>>>>>>>>> seems like a file is missing ?
>>>>>>>>>>
>>>>>>>>>> On Fri, May 31, 2019 at 3:25 PM Kotresh Hiremath Ravishankar <
>>>>>>>>>> khiremat at redhat.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Hi,
>>>>>>>>>>>
>>>>>>>>>>> Could you take the strace with with more string size? The
>>>>>>>>>>> argument strings are truncated.
>>>>>>>>>>>
>>>>>>>>>>> strace -s 500 -ttt -T -p <rsync pid>
>>>>>>>>>>>
>>>>>>>>>>> On Fri, May 31, 2019 at 3:17 PM deepu srinivasan <
>>>>>>>>>>> sdeepugd at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Hi Kotresh
>>>>>>>>>>>> The above-mentioned work around did not work properly.
>>>>>>>>>>>>
>>>>>>>>>>>> On Fri, May 31, 2019 at 3:16 PM deepu srinivasan <
>>>>>>>>>>>> sdeepugd at gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> Hi Kotresh
>>>>>>>>>>>>> We have tried the above-mentioned rsync option and we are
>>>>>>>>>>>>> planning to have the version upgrade to 6.0.
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Fri, May 31, 2019 at 11:04 AM Kotresh Hiremath Ravishankar <
>>>>>>>>>>>>> khiremat at redhat.com> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Hi,
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> This looks like the hang because stderr buffer filled up with
>>>>>>>>>>>>>> errors messages and no one reading it.
>>>>>>>>>>>>>> I think this issue is fixed in latest releases. As a
>>>>>>>>>>>>>> workaround, you can do following and check if it works.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Prerequisite:
>>>>>>>>>>>>>>  rsync version should be > 3.1.0
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Workaround:
>>>>>>>>>>>>>> gluster volume geo-replication <MASTERVOL>
>>>>>>>>>>>>>> <SLAVEHOST>::<SLAVEVOL> config rsync-options "--ignore-
>>>>>>>>>>>>>> missing-args"
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Thanks,
>>>>>>>>>>>>>> Kotresh HR
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Thu, May 30, 2019 at 5:39 PM deepu srinivasan <
>>>>>>>>>>>>>> sdeepugd at gmail.com> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Hi
>>>>>>>>>>>>>>> We were evaluating Gluster geo Replication between two DCs
>>>>>>>>>>>>>>> one is in US west and one is in US east. We took multiple trials for
>>>>>>>>>>>>>>> different file size.
>>>>>>>>>>>>>>> The Geo Replication tends to stop replicating but while
>>>>>>>>>>>>>>> checking the status it appears to be in Active state. But the slave volume
>>>>>>>>>>>>>>> did not increase in size.
>>>>>>>>>>>>>>> So we have restarted the geo-replication session and checked
>>>>>>>>>>>>>>> the status. The status was in an active state and it was in History Crawl
>>>>>>>>>>>>>>> for a long time. We have enabled the DEBUG mode in logging and checked for
>>>>>>>>>>>>>>> any error.
>>>>>>>>>>>>>>> There was around 2000 file appeared for syncing candidate.
>>>>>>>>>>>>>>> The Rsync process starts but the rsync did not happen in the slave volume.
>>>>>>>>>>>>>>> Every time the rsync process appears in the "ps auxxx" list but the
>>>>>>>>>>>>>>> replication did not happen in the slave end. What would be the cause of
>>>>>>>>>>>>>>> this problem? Is there anyway to debug it?
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> We have also checked the strace of the rync program.
>>>>>>>>>>>>>>> it displays something like this
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> "write(2, "rsync: link_stat \"/tmp/gsyncd-au"..., 128"
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> We are using the below specs
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Gluster version - 4.1.7
>>>>>>>>>>>>>>> Sync mode - rsync
>>>>>>>>>>>>>>> Volume - 1x3 in each end (master and slave)
>>>>>>>>>>>>>>> Intranet Bandwidth - 10 Gig
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Thanks and Regards,
>>>>>>>>>>>>>> Kotresh H R
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> Thanks and Regards,
>>>>>>>>>>> Kotresh H R
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> Thanks and Regards,
>>>>>>>>> Kotresh H R
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Thanks and Regards,
>>>>>>> Kotresh H R
>>>>>>>
>>>>>>
>>>
>>> --
>>> Thanks and Regards,
>>> Kotresh H R
>>>
>>
>
> --
> Thanks and Regards,
> Kotresh H R
>
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