Re: Removed directory is back in the Ceph FS

Re: Removed directory is back in the Ceph FS

[Franck Marchand]

Hi,

I have a weird pb. I remove a folder using a mounted fs partition. I
did it and it worked well.
I checked later to see if I had all my folders in ceph fs ... : the
folder I removed was back and I can't remove it ! Here is the error
message I got :

rm -rf 2012-11-10/
rm cannot remove `2012-11-10': Directory not empty

This folder is empty ...
So anybody had the same pb ? Am I doing something wrong ?

Thx

Re: Removed directory is back in the Ceph FS

[Gregory Farnum]

On Tue, Nov 13, 2012 at 3:23 AM, Franck Marchand <fmarchand@agaetis.fr> wrote:
> Hi,
>
> I have a weird pb. I remove a folder using a mounted fs partition. I
> did it and it worked well.

What client are you using? How did you delete it? (rm -rf, etc?) Are
you using multiple clients or one, and did you check it on a different
client?

> I checked later to see if I had all my folders in ceph fs ... : the
> folder I removed was back and I can't remove it ! Here is the error
> message I got :
>
> rm -rf 2012-11-10/
> rm cannot remove `2012-11-10': Directory not empty
>
> This folder is empty ...
> So anybody had the same pb ? Am I doing something wrong ?

This sounds like a known but undiagnosed problem with the MDS
"rstats". The part where your client reported success is a new
wrinkle, though.
-Greg


>
> Thx
> --
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Re: Removed directory is back in the Ceph FS

[Gregory Farnum]

Can you try and reproduce this again using v0.55? There are a number
of (community!) patches in there that could have fixed this issue.
-Greg

On Tue, Nov 20, 2012 at 2:14 AM, Franck Marchand <fmarchand@agaetis.fr> wrote:
> Hi Gregory !
>
> Thx to have a look on this.
>
> I mounted the ceph fs from multiple clients. I did a rm -rf myfolder
> from a client.
> I use the ceph-fs-common (0.48-2argonaut) to mount my ceph fs.
>
> Franck
>
> 2012/11/20 Gregory Farnum <greg@inktank.com>:
>> On Tue, Nov 13, 2012 at 3:23 AM, Franck Marchand <fmarchand@agaetis.fr> wrote:
>>> Hi,
>>>
>>> I have a weird pb. I remove a folder using a mounted fs partition. I
>>> did it and it worked well.
>>
>> What client are you using? How did you delete it? (rm -rf, etc?) Are
>> you using multiple clients or one, and did you check it on a different
>> client?
>>
>>> I checked later to see if I had all my folders in ceph fs ... : the
>>> folder I removed was back and I can't remove it ! Here is the error
>>> message I got :
>>>
>>> rm -rf 2012-11-10/
>>> rm cannot remove `2012-11-10': Directory not empty
>>>
>>> This folder is empty ...
>>> So anybody had the same pb ? Am I doing something wrong ?
>>
>> This sounds like a known but undiagnosed problem with the MDS
>> "rstats". The part where your client reported success is a new
>> wrinkle, though.
>> -Greg
>>
>>
>>>
>>> Thx
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: Removed directory is back in the Ceph FS

[Smart Weblications GmbH - Florian Wiessner]

Am 13.11.2012 12:23, schrieb Franck Marchand:
> Hi,
> 
> I have a weird pb. I remove a folder using a mounted fs partition. I
> did it and it worked well.
> I checked later to see if I had all my folders in ceph fs ... : the
> folder I removed was back and I can't remove it ! Here is the error
> message I got :
> 
> rm -rf 2012-11-10/
> rm cannot remove `2012-11-10': Directory not empty
> 
> This folder is empty ...
> So anybody had the same pb ? Am I doing something wrong ?
> 

I had the same problem when i tried to untar a kernel-tree on cephfs, after
deleting it with rm -r linux the rm process seemed to work, but the folder was
still there with some (~20) subfolders all empty but cannot be removed with
error message "directory not empty". My setup was 4 osds, 4 mons, 4 mds
configured, one running.

However, i currently have no hardware left to test or debug this right now.




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