[Gluster-users] Geo Replication stops replicating

[Kotresh Hiremath Ravishankar]

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
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