On Tue, Feb 13, 2018 at 11:27 PM, Ingo Reimann <ireimann@xxxxxxxxx> wrote:
> Hi List,
>
> we want to brush up our cluster and correct things, that have been changed
> over time. When we started with bobtail, we put all index objects together
> with data into the pool rgw.buckets:
>
> root@cephadmin:~# radosgw-admin metadata get bucket:some-bucket
> {
> "key": "bucket:some-bucket",
> "ver": {
> "tag": "_zgv1FXm604BQtdiZnLkaiXN",
> "ver": 1
> },
> "mtime": "2016-01-08 04:53:38.000000Z",
> "data": {
> "bucket": {
> "name": "some-bucket",
> "pool": "rgw.buckets",
> "data_extra_pool": "",
> "index_pool": "rgw.buckets",
> "marker": "default.101387371.6",
> "bucket_id": "default.101387371.6",
> "tenant": ""
> [...]
>
> With Jewel, we introduced a default-placement and put the index of new
> buckets into the pool rgw.buckets.index. Now, we`d like to correct the old
> buckets and shift all the indices where they belong to.
> I can
> * copy the .dir.MARKER.SHARD# objects to the index pool
> * modify the buckets metadata
> But:
> * when I try to modify the metadata of the bucket instance, the index_pool
> does not get changed
> * radosgw-admin bucket stats still shows the old index pool
>
> Did I miss something?
You didn't miss much. There is a guard in the code that prevents you
from modifying the placement pools. I have this commit that changes
that (but that probably doesn't help you much):
https://github.com/yehudasa/ceph/commit/0baebec32e388f4cb7bdf1fee9afe2144eeeb354
The way to go forward for you I think would be by reshrding the
buckets, which will put the bucket indexes in the correct place. Can
you actually list the bucket indexes right now?
Yehuda
>
> NB: Just now, I perform all the operations with a jewel 10.2.2 rgw.
> Luminous is available but not active yet.
>
> Best regards,
>
> Ingo Reimann
> Dunkel GmbH
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