Re: Lost access when removing cache pool overlay

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Thank you for the response. It seems to me it is a transient situation. At this moment, I regained access to most, but not all buckets/index objects. But the overall performance dropped once again - I already have huge performance issues.

Regards.

Em 29-01-2016 14:41, Robert LeBlanc escreveu:
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Do the client key have access to the base pool? Something similar bit
us when adding a caching tier. Since the cache tier may be proxying
all the I/O, the client may not have had access to the base pool and
it still worked ok. Once you removed the cache tier, it could no
longer access the pool.
- ----------------
Robert LeBlanc
PGP Fingerprint 79A2 9CA4 6CC4 45DD A904  C70E E654 3BB2 FA62 B9F1


On Fri, Jan 29, 2016 at 8:47 AM, Gerd Jakobovitsch  wrote:
Dear all,

I had to move .rgw.buckets.index pool to another structure; therefore, I
created a new pool .rgw.buckets.index.new ; added the old pool as cache
pool, and flushed the data.

Up to this moment everything was ok. With radosgw -p  df, I saw the
objects moving to the new pool; the moved objects where ok, I could list
omap keys and so on.

When everything got moved, I removed the overlay cache pool. But at this
moment, the objects became unresponsive:

[(13:39:20) ceph@spchaog1 ~]$ rados -p .rgw.buckets.index listomapkeys
.dir.default.198764998.1
error getting omap key set .rgw.buckets.index/.dir.default.198764998.1: (5)
Input/output error

That happens to all objects. When trying the access to the bucket through
radosgw, I also get problems:

[(13:16:01) root@spcogp1 ~]# radosgw-admin bucket stats --bucket="mybucket"
error getting bucket stats ret=-2

Looking at the disk, data seems to be there:

[(13:47:10) root@spcsnp1 ~]# ls
/var/lib/ceph/osd/ceph-23/current/34.1f_head/|grep 198764998.1
\.dir.default.198764998.1__head_8A7482FF__22

Does anyone have a hint? Could I have lost ownership of the objects?

Regards.













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