[Gluster-users] geo-replication master is distributed-replicated, slave is distributed only?
Aravinda
avishwan at redhat.com
Mon Aug 24 12:48:22 UTC 2015
No restrictions about Volume type in Slave side. But when a Slave node
is down, some of the files already created are not accessible so data
operations/sync may fail for those files.(These errors will be logged
in Master log files and Geo-rep will continue.).
Other problem is deleting files in Slave side may get ignored silently
in Geo-replication because Geo-rep treats "ENOENT" errors as safe
errors during delete/unlink. (Safe error because, Geo-rep tried to
delete a file and that file gets "ENOENT"(No such file/directory)
error). Due to this Slave Volume may have files which are deleted in
master.
regards
Aravinda
On 08/21/2015 11:46 PM, Christian Rice wrote:
> I’d like to have a distributed-replicated master volume, and
> distributed-only slave.
>
> Can this be done? Just beginning the research, but so far I’ve only
> done geo-replication with distributed-only volumes. Tips/caveats on
> this kind architecture are welcome.
>
> The rationale is straightforward—the master volume should be able to
> stay available with all data when suffering a node loss, but the
> geo-replicated volumes can be taken offline for repairs and resync as
> soon as possible.
>
> Cheers,
> Christian
>
>
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