Hi Yixin,
I am interested in the answers to your questions also but I think I
can provide some useful information for you.
We have a multisite setup also where we need to reshard sometimes as
the bucket have grown. However we have bucket sync turned off for
these buckets as they only reside on one gateway and not the other.
For these buckets I have been able to manually reshard using this command:
radosgw-admin bucket reshard --rgw-zone={zone_name}
--bucket={bucket_name} --num-shards {new_shard_number}
--yes-i-really-mean-it
I have not seen any issues with this, but like I said I only have data
on that one zone and not the other. This may not be useful for your
situation but I thought I'd mention it anyway.
I would really like to know what the correct procedure is for buckets
that have more than 100k objects per shard in a multisite environment.
Regards,
Rich
On Thu, 5 Oct 2023 at 06:51, Yixin Jin <yjin77@xxxxxxxx> wrote:
>
> Hi folks,
>
> I am aware that dynamic resharding isn't supported before Reef with multisite. However, does manual resharding work? It doesn't seem to be so, either. First of all, running "bucket reshard" has to be in the master zone. But if the objects of that bucket isn't in the master zone, resharding in the master zone seems to render those objects inaccessible in the zone that actually has them. So, what is recommended practice of resharding with multiste? No resharding at all?
>
> Thanks,
> Yixin
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