Some OSD and MDS crash

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On Wed, Jul 16, 2014 at 6:21 AM, Pierre BLONDEAU
<pierre.blondeau at unicaen.fr> wrote:
> Hi,
>
> After the repair process, i have :
> 1926 active+clean
>    2 active+clean+inconsistent
>
> This two PGs seem to be on the same osd ( #34 ):
> # ceph pg dump | grep inconsistent
> dumped all in format plain
> 0.2e    4       0       0       0       8388660 4       4
> active+clean+inconsistent       2014-07-16 11:39:43.819631      9463'4
> 438411:133968   [34,4]  34      [34,4]  34      9463'4  2014-07-16
> 04:52:54.417333      9463'4  2014-07-11 09:29:22.041717
> 0.1ed   5       0       0       0       8388623 10      10
> active+clean+inconsistent       2014-07-16 11:39:45.820142      9712'10
> 438411:144792   [34,2]  34      [34,2]  34      9712'10 2014-07-16
> 09:12:44.742488      9712'10 2014-07-10 21:57:11.345241
>
> It's can explain why my MDS won't to start ? If i remove ( or shutdown )
> this OSD, it's can solved my problem ?

You want to figure out why they're inconsistent (if they're still
going inconsistent, or maybe just need to be repaired), but this
shouldn't be causing your MDS troubles.
Can you dump the MDS journal and put it somewhere accessible? (You can
use ceph-post-file to upload it.) John has been trying to reproduce
this crash but hasn't succeeded yet.
-Greg
Software Engineer #42 @ http://inktank.com | http://ceph.com


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