On Wed, Feb 22, 2017 at 8:33 PM, Yehuda Sadeh-Weinraub <yehuda@xxxxxxxxxx> wrote:
-- On Wed, Feb 22, 2017 at 6:19 AM, Marius Vaitiekunas
<mariusvaitiekunas@xxxxxxxxx> wrote:
> Hi Cephers,
>
> We are testing rgw multisite solution between to DC. We have one zonegroup
> and to zones. At the moment all writes/deletes are done only to primary
> zone.
>
> Sometimes not all the objects are replicated.. We've written prometheus
> exporter to check replication status. It gives us each bucket object count
> from user perspective, because we have millions of objects and hundreds of
> buckets. We just want to be sure, that everything is replicated without
> using ceph internals like rgw admin api for now.
>
> Is it possible to initiate full resync of only one rgw bucket from master
> zone? What are the options about resync when things go wrong and replication
> misses some objects?
>
> We run latest jewel 10.2.5.
There's the 'radosgw-admin bucket sync init' command that you can run
on the specific bucket on the target zone. This will reinitialize the
sync state, so that when it starts syncing it will go through the
whole full sync process. Note that it shouldn't actually copy data
that already exists on the target. Also, in order to actually start
the sync, you'll need to have some change that would trigger the sync
on that bucket, e.g., create a new object there.
Yehuda
Hi,
I've tried to resync a bucket, but it didn't manage to resync a missing object. If I try to copy missing object by hand into secondary zone, i get asked to overwrite existing object.. It looks like the object is replicated, but is not in a bucket index. I've tried to check bucket index with --fix and --check-objects flags, but nothing changes. What else should i try?
Marius Vaitiekūnas
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