[Gluster-users] Geo Replication stops replicating

deepu srinivasan sdeepugd at gmail.com
Fri May 31 09:47:09 UTC 2019


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
>>
>
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