Re: Move RGW bucket index

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Hi,

AFAIK its not possible to moved from non-sharded bucket index to sharded, it must be set at the time a bucket is created.

You could use 's3cmd sync' to copy data from one bucket to another bucket, but with 5M objects its going to take a long time.

Thanks

On Mon, Jun 13, 2016 at 12:11 PM, Василий Ангапов <angapov@xxxxxxxxx> wrote:
Is there any way to move existing non-sharded bucket index to sharded
one? Or is there any way (online or offline) to move all objects from
non-sharded bucket to sharded one?

2016-06-13 11:38 GMT+03:00 Sean Redmond <sean.redmond1@xxxxxxxxx>:
> Hi,
>
> I have a few buckets here with >10M objects in them and the index pool was a
> problem when scrubbing, I have set IO priority and set the disk scheduler to
> CFQ, I don't really see these problems any more, I would never really be
> happy disabling scrubs.
>
> I do still see the problems when backfill takes place but thankfully this is
> pretty rare on the SSD storage.
>
> I found that using index shards also helps with very large buckets.
>
> Thanks
>
> On Mon, Jun 13, 2016 at 1:13 AM, Василий Ангапов <angapov@xxxxxxxxx> wrote:
>>
>> Thanks, Sean!
>>
>> BTW, is it a good idea to turn off scrub and deep-scrub on bucket.index
>> pool?
>> We have something like 5 million objects in it and when it is
>> scrubbing RGW just stops working until it's finished...
>>
>> Or will setting the "idle" IO priority for scrub help?
>>
>>
>>
>> 2016-06-12 16:07 GMT+03:00 Sean Redmond <sean.redmond1@xxxxxxxxx>:
>> > Hi Vasily,
>> >
>> > You don't need to create a new pool and move the data to a new pool, you
>> > can
>> > just update the crush map rule set to tell the existing RGW index pool
>> > to
>> > use a different 'root'.
>> >
>> > (http://docs.ceph.com/docs/master/rados/operations/crush-map/#crushmaprules)
>> >
>> > This change can be done online, but I would advise you do it at a quite
>> > time
>> > and set sensible levels of back fill and recovery as it will result in
>> > the
>> > movement of data,
>> >
>> > Thanks
>> >
>> > On Sun, Jun 12, 2016 at 1:43 PM, Василий Ангапов <angapov@xxxxxxxxx>
>> > wrote:
>> >>
>> >> Hello!
>> >>
>> >> I did not find any information on how to move existing RGW bucket
>> >> index pool to new one.
>> >> I want to move my bucket indices on SSD disks, do I have to shut down
>> >> the whole RGW or not? Would be very grateful for any tip.
>> >>
>> >> Regards, Vasily.
>> >> _______________________________________________
>> >> ceph-users mailing list
>> >> ceph-users@xxxxxxxxxxxxxx
>> >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>> >
>> >
>
>

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