Thanks for the extra info, but I find the question more nuanced than that.
For example in my case I ended up with 12.2.9 on my last handful of
newly-installed servers (and this is simply using yum rather than
explicitly ceph-deploy).
We are replacing hardware nodes so the cluster is actively backfilling
across nodes, which fulfills Greg's criterion of "(the bug) only
triggers when PGs are not active+clean". Fortunately we are mostly
backfilling from older to newer minor versions (12.2.8 to 12.2.9), so
the problem may not manifest itself, but I'm not going to be in a
position to have all pgs active+clean until the backfills are complete.
Perhaps at that point it might be safe to upgrade the remaining osds to
the same 12.2.9? The advice to also not upgrade to 12.9.10 is a bit
disturbing since it sounds like the feature revert might make it
incompatible with what we have.
Graham
On 11/07/2018 05:28 PM, Neha Ojha wrote:
For those on 12.2.9 -
If you have successfully upgraded to 12.2.9, there is no reason for
you to downgrade, since the bug appears while upgrading to 12.2.9 -
http://tracker.ceph.com/issues/36686. We suggest you to not upgrade to
12.2.10, which reverts the feature that caused this bug. Also, 12.2.10
does not have much in-store except for the revert. We are working on a
clean upgrade path for this feature and will announce it when it is
ready.
For those who haven't upgraded to 12.2.9 -
Please avoid this release and wait for 12.2.10.
More information here:
https://www.spinics.net/lists/ceph-devel/msg43509.html,
https://www.spinics.net/lists/ceph-users/msg49112.html
Again, sorry about the inconvenience and hope this helps!
Thanks,
Neha
On Wed, Nov 7, 2018 at 2:38 PM, Ricardo J. Barberis
<rica...@palmtx.com.ar> wrote:
El Miércoles 07/11/2018 a las 10:58, Simon Ironside escribió:
On 07/11/2018 10:59, Konstantin Shalygin wrote:
I wonder if there is any release announcement for ceph 12.2.9 that I
missed. I just found the new packages on download.ceph.com, is this an
official release?
This is because 12.2.9 have a several bugs. You should avoid to use this
release and wait for 12.2.10
Argh! What's it doing in the repos then?? I've just upgraded to it!
What are the bugs? Is there a thread about them?
Simon
Is it safe to downgrade from 12.2.9 to 12.2.8?
Or should we just wait for 12.2.10?
Thanks,
--
Ricardo J. Barberis
Usuario Linux Nº 250625: http://counter.li.org/
Usuario LFS Nº 5121: http://www.linuxfromscratch.org/
Senior SysAdmin / IT Architect - www.DonWeb.com
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Graham Allan
Minnesota Supercomputing Institute - g...@umn.edu
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