Re: Geo Replication stops replicating

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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@xxxxxxxxx> 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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