Re: PG reported as inconsistent in status, but no inconsistencies visible to rados

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On Wed, Aug 23, 2017 at 12:47 AM, Edward R Huyer <erhvks@xxxxxxx> wrote:
> Neat, hadn't seen that command before.  Here's the fsck log from the primary OSD:  https://pastebin.com/nZ0H5ag3
>
> Looks like the OSD's bluestore "filesystem" itself has some underlying errors, though I'm not sure what to do about them.

Hmmm... Can you tell us any more about how/when this happened?

Any corresponding event at all? Any interesting log entries around the
same time?

Could you also open a tracker for this (or let me know and I can open
one for you)? That way we can continue the investigation there.

>
> -----Original Message-----
> From: Brad Hubbard [mailto:bhubbard@xxxxxxxxxx]
> Sent: Monday, August 21, 2017 7:05 PM
> To: Edward R Huyer <erhvks@xxxxxxx>
> Cc: ceph-users@xxxxxxxxxxxxxx
> Subject: Re:  PG reported as inconsistent in status, but no inconsistencies visible to rados
>
> Could you provide the output of 'ceph-bluestore-tool fsck' for one of these OSDs?
>
> On Tue, Aug 22, 2017 at 2:53 AM, Edward R Huyer <erhvks@xxxxxxx> wrote:
>> This is an odd one.  My cluster is reporting an inconsistent pg in
>> ceph status and ceph health detail.  However, rados
>> list-inconsistent-obj and rados list-inconsistent-snapset both report
>> no inconsistencies.  Scrubbing the pg results in these errors in the osd logs:
>>
>>
>>
>> OSD 63 (primary):
>>
>> 2017-08-21 12:41:03.580068 7f0b36629700 -1
>> bluestore(/var/lib/ceph/osd/ceph-63) _verify_csum bad crc32c/0x1000
>> checksum at blob offset 0x0, got 0x6b6b9184, expected 0x6706be76,
>> device location [0x23f39d0000~1000], logical extent 0x0~1000, object
>> #9:55bf7cc6:::rbd_data.33992ae8944a.000000000000200f:e#
>>
>> 2017-08-21 12:41:03.961945 7f0b36629700 -1 log_channel(cluster) log [ERR] :
>> 9.aa soid 9:55bf7cc6:::rbd_data.33992ae8944a.000000000000200f:e:
>> failed to pick suitable object info
>>
>> 2017-08-21 12:41:15.357484 7f0b36629700 -1 log_channel(cluster) log [ERR] :
>> 9.aa deep-scrub 3 errors
>>
>>
>>
>> OSD 50:
>>
>> 2017-08-21 12:41:03.592918 7f264be6d700 -1
>> bluestore(/var/lib/ceph/osd/ceph-50) _verify_csum bad crc32c/0x1000
>> checksum at blob offset 0x0, got 0x64a1e2b1, expected 0x6706be76,
>> device location [0x3418830000~1000], logical extent 0x0~1000, object
>> #9:55bf7cc6:::rbd_data.33992ae8944a.000000000000200f:e#
>>
>>
>>
>> OSD 46:
>>
>> 2017-08-21 12:41:03.531394 7fb396b1f700 -1
>> bluestore(/var/lib/ceph/osd/ceph-46) _verify_csum bad crc32c/0x1000
>> checksum at blob offset 0x0, got 0x7aa05c01, expected 0x6706be76,
>> device location [0x1d6e1e0000~1000], logical extent 0x0~1000, object
>> #9:55bf7cc6:::rbd_data.33992ae8944a.000000000000200f:e#
>>
>>
>>
>> This is on Ceph 12.1.4 (previously 12.1.1).
>>
>>
>>
>> Thoughts?
>>
>>
>>
>> -----
>>
>> Edward Huyer
>>
>> School of Interactive Games and Media
>>
>> Rochester Institute of Technology
>>
>> Golisano 70-2373
>>
>> 152 Lomb Memorial Drive
>>
>> Rochester, NY 14623
>>
>> 585-475-6651
>>
>> erhvks@xxxxxxx
>>
>>
>>
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>
>
>
> --
> Cheers,
> Brad



-- 
Cheers,
Brad
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