Re: Data still in OSD directories after removing

[Olivier Bonvalet <ceph.list-PaEMFeTk6C1QFI55V6+gNQ@public.gmane.org>]

Le mercredi 21 mai 2014 à 08:20 -0700, Sage Weil a écrit :
> 
> You should definitely not do this!  :)

Of course ;)

> 
> You're certain that that is the correct prefix for the rbd image you 
> removed?  Do you see the objects lists when you do 'rados -p rbd ls - | 
> grep <prefix>'?

I'm pretty sure yes : since I didn't see a lot of space freed by the
"rbd snap purge" command, I looked at the RBD prefix before to do the
"rbd rm" (it's not the first time I see that problem, but previous time
without the RBD prefix I was not able to check).

So : 
- "rados -p sas3copies ls - | grep rb.0.14bfb5a.238e1f29" return nothing
at all
- # rados stat -p sas3copies rb.0.14bfb5a.238e1f29.00000002f026
 error stat-ing sas3copies/rb.0.14bfb5a.238e1f29.00000002f026: No such
file or directory
- # rados stat -p sas3copies rb.0.14bfb5a.238e1f29.000000000000
 error stat-ing sas3copies/rb.0.14bfb5a.238e1f29.000000000000: No such
file or directory
- # ls -al /var/lib/ceph/osd/ceph-67/current/9.1fe_head/DIR_E/DIR_F/DIR_1/DIR_7/rb.0.14bfb5a.238e1f29.00000002f026__a252_E68871FE__9
-rw-r--r-- 1 root root 4194304 oct.   8  2013 /var/lib/ceph/osd/ceph-67/current/9.1fe_head/DIR_E/DIR_F/DIR_1/DIR_7/rb.0.14bfb5a.238e1f29.00000002f026__a252_E68871FE__9


> If the objects really are orphaned, teh way to clean them up is via 'rados 
> -p rbd rm <objectname>'.  I'd like to get to the bottom of how they ended 
> up that way first, though!

I suppose the problem came from me, by doing CTRL+C while "rbd snap
purge $IMG".
"rados rm -p sas3copies rb.0.14bfb5a.238e1f29.00000002f026" don't remove
thoses files, and just answer with a "No such file or directory".

Thanks,
Olivier



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