[Gluster-users] Geo Replication stops replicating

[deepu srinivasan]

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
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20190531/d20c2c85/attachment-0001.html>