Hi Paul,

This is a small test cluster, and the rbd pool is replicated. I am 
hardly using any clients on the cluster. Furthermore I have been the 
only one creating the snapshots and I know for sure that I was not 
trying to delete them. If so I have been doing this on one of the ceph 
nodes.

I have these issues on images with
create_timestamp: Tue Jul 18 20:51:40 2017
create_timestamp: Fri Sep  1 13:55:25 2017
create_timestamp: Fri Sep  1 13:59:10 2017
create_timestamp: Wed Jan  3 16:38:57 2018

Updates have been done in February, so theoretically I should not be 
seeing these than any more?
Feb 21 15:13:35 Updated: 2:ceph-osd-12.2.3-0.el7.x86_64
Feb 28 13:33:27 Updated: 2:ceph-osd-12.2.4-0.el7.x86_64

How can I determine what snapshot is bad of this image? 
Should this snapshot be considered lost?
And is deleting this snapshot the only way to fix this? 


-----Original Message-----
From: Paul Emmerich [mailto:paul.emmer...@croit.io] 
Sent: dinsdag 10 april 2018 20:14
To: Marc Roos
Cc: ceph-users
Subject: Re: [ceph-users] Ceph scrub logs: _scan_snaps no head for 
$object?

Hi,


you'll usually see this if there are "orphaned" snapshot objects. One 
common cause for this are
pre-12.2.2 clients trying to delete RBD snapshots with a data pool 
(i.e., erasure coded pools) They send the snapshot requests to the wrong 
pool and you end up with lots of problems.



Paul


2018-04-09 16:55 GMT+02:00 Marc Roos <m.r...@f1-outsourcing.eu>:



        I have this on a rbd pool with images/snapshots that have been 
created
        in Luminous
        
        > Hi Stefan, Mehmet,
        >
        > Are these clusters that were upgraded from prior versions, or 
fresh
        > luminous installs?
        >
        >
        > This message indicates that there is a stray clone object with no
        > associated head or snapdir object.  That normally should never
        > happen--it's presumably the result of a (hopefully old) bug.  The
        scrub
        > process doesn't even clean them up, which maybe says something 
about
        how
        > common it is/was...
        >
        > sage
        
        >
        
        
        
        
        _______________________________________________
        ceph-users mailing list
        ceph-users@lists.ceph.com
        http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com 
<http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com> 
        




-- 

--
Paul Emmerich

croit GmbH
Freseniusstr. 31h
81247 München
www.croit.io
Tel: +49 89 1896585 90



_______________________________________________
ceph-users mailing list
ceph-users@lists.ceph.com
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

Reply via email to