Re: help removing an rbd image?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Okay, will do.   If the problem goes away with filestore, I'll switch back
to bluestore again and re-duplicate the problem.  In that case, are there
particular things you would like me to collect?   Or clues I should look
for in logs?

Thanks, Kevan

On 5/24/16, 4:06 PM, "Samuel Just" <sjust@xxxxxxxxxx> wrote:

>My money is on bluestore.  If you can try to reproduce on filestore,
>that would rapidly narrow it down.
>-Sam
>
>On Tue, May 24, 2016 at 1:53 PM, Kevan Rehm <krehm@xxxxxxxx> wrote:
>> Nope, not using tiering.
>>
>> Also, this is my second attempt, this is repeatable for me, I'm trying
>>to
>> duplicate a previous occurrence of this same problem to collect useful
>> debug data.  In the previous case, I was eventually able to get rid of
>>the
>> objects (but have forgotten how), but that was followed by 22 of the 24
>> OSDs crashing hard.  Took me quite a while to re-deploy and get it
>>working
>> again.  I want to get a small, repeatable example for the Ceph guys to
>> look at, assuming it's a bug.
>>
>> Don't know if it's related to the bluestore OSDs or not, still getting
>>my
>> feet wet with Ceph.
>>
>> Kevan
>>
>> On 5/24/16, 3:47 PM, "Jason Dillaman" <jdillama@xxxxxxxxxx> wrote:
>>
>>>Any chance you are using cache tiering?  It's odd that you can see the
>>>objects through "rados ls" but cannot delete them with "rados rm".
>>>
>>>On Tue, May 24, 2016 at 4:34 PM, Kevan Rehm <krehm@xxxxxxxx> wrote:
>>>> Greetings,
>>>>
>>>> I have a small Ceph 10.2.1 test cluster using a 3-replicate pool based
>>>>on 24
>>>> SSDs configured with bluestore.  I created and wrote an rbd image
>>>>called
>>>> "image1", then deleted the image again.
>>>>
>>>> rbd -p ssd_replica create --size 100G image1
>>>>
>>>> rbd --pool ssd_replica bench-write --io-size 2M --io-threads 16
>>>>--io-total
>>>> 100G --io-pattern seq image1
>>>>
>>>> rbd -p ssd_replica rm image1
>>>>
>>>>
>>>> The rbd rm command completed successfully, but not all the
>>>>image-related
>>>> files disappeared from the pool.   The pool still contains files:
>>>>
>>>>
>>>> rbd_directory
>>>>
>>>> rbd_id.image1
>>>>
>>>> rbd_object_map.15ed238e1f29
>>>>
>>>>
>>>> plus 2938 other objects of the form
>>>> "rbd_data.15ed238e1f29.000000000000xxxx".
>>>>
>>>> Attempting to re-delete image1 does not work.  Attempting to directly
>>>>delete
>>>> object rbd_id.image1 and one of the data objects doesn't work either.
>>>>The
>>>> commands all fail with "No such file or directory" yet they are
>>>>obviously
>>>> there.  (Warning messages stripped for brevity.)
>>>>
>>>> [root@alpha1-p200 fio]# rbd -p ssd_replica rm image1
>>>>
>>>> Removing image: 0% complete...failed.
>>>>
>>>> rbd: delete error: (2) No such file or directory
>>>>
>>>> [root@alpha1-p200 fio]# rados -p ssd_replica rm rbd_id.image1
>>>>
>>>> error removing ssd_replica>rbd_id.image1: (2) No such file or
>>>>directory
>>>>
>>>> [root@alpha1-p200 fio]# rados -p ssd_replica rm
>>>> rbd_data.15ed238e1f29.0000000000005b56
>>>>
>>>> error removing ssd_replica>rbd_data.15ed238e1f29.0000000000005b56: (2)
>>>>No
>>>> such file or directory
>>>>
>>>>
>>>> Is this a bug, and if so, where should I look for the cause?   Anyone
>>>>know
>>>> how to delete these objects?
>>>>
>>>> Thanks, Kevan
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ceph-users mailing list
>>>> ceph-users@xxxxxxxxxxxxxx
>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
>>>>
>>>
>>>
>>>
>>>--
>>>Jason
>>
>> _______________________________________________
>> ceph-users mailing list
>> ceph-users@xxxxxxxxxxxxxx
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

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



[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux