Re: PG won't stay clean

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On Mon, Oct 26, 2015 at 4:38 AM, Robert LeBlanc <robert@xxxxxxxxxxxxx> wrote:
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> I set debug_osd = 20/20 and restarted the primary osd. The logs are at
> http://162.144.87.113/files/ceph-osd.110.log.xz .
>
> The PG in question is 9.e3 and it is one of 15 that have this same
> behavior. The cluster is currently idle.

We had a similar problem in the past -- see the thread "PGs going
inconsistent after stopping the primary".
The fix is to write to the PG.

Cheers, Dan


> - ----------------
> Robert LeBlanc
> PGP Fingerprint 79A2 9CA4 6CC4 45DD A904  C70E E654 3BB2 FA62 B9F1
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>
> On Sun, Oct 25, 2015 at 5:51 PM, Robert LeBlanc  wrote:
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>> I have a 0.94.4 cluster that when I repair/deep-scrub a PG, it comes
>> back clean, but as soon as I restart any OSD that hosts it, it goes
>> back to inconsistent. If I deep-scrub that PG it clears up.
>>
>> I determined that the bad copy was not on the primary and issued a pg
>> repair command. I have shut down and deleted the PG folder on each OSD
>> in turn and let it back fill. I tried taking the primary OSD down and
>> issuing a repair command then. I took an m5sum of all files in the PG
>> directory and compared all files across the OSDs and it came back
>> clean. I shut down each OSD in turn and removed any PG_TEMP
>> directories. I'm just not sure why the cluster is so confused as to
>> the status of this PG.
>>
>> Any ideas?
>>
>> - ----------------
>> Robert LeBlanc
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