Re: Strange osd in PG with new EC-Pool - pgs: 2 active+undersized+degraded

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Hi Don,
after a lot of trouble due an unfinished setcrushmap, I was able to remove the new EC pool.
Load the old crushmap and edit agin. After include an "step set_choose_tries 100" in the crushmap the EC pool creation with
ceph osd pool create ec7archiv 1024 1024 erasure 7hostprofile
work without trouble.

Due to defect PGs from this test, I remove the cache tier from the old EC pool which gaves the next trouble - but this
is another story!


Thanks again

Udo

Am 25.03.2015 20:37, schrieb Don Doerner:
> More info please: how did you create your EC pool?  It's hard to imagine that you could have specified enough PGs to make it impossible to form PGs out of 84 OSDs (I'm assuming your SSDs are in a separate root) but I have to ask...
> 
> -don-
> 
> 

> -----Original Message-----
> From: Udo Lembke [mailto:ulembke@xxxxxxxxxxxx] 
> Sent: 25 March, 2015 08:54
> To: Don Doerner; ceph-users@xxxxxxxx
> Subject: Re:  Strange osd in PG with new EC-Pool - pgs: 2 active+undersized+degraded
> 
> Hi Don,
> thanks for the info!
> 
> looks that choose_tries set to 200 do the trick.
> 
> But the setcrushmap takes a long long time (alarming, but the client have still IO)... hope it's finished soon ;-)
> 
> 
> Udo
> 
> Am 25.03.2015 16:00, schrieb Don Doerner:
>> Assuming you've calculated the number of PGs reasonably, see here 
>> <https://urldefense.proofpoint.com/v1/url?u=http://tracker.ceph.com/issues/10350&k=8F5TVnBDKF32UabxXsxZiA%3D%3D%0A&r=klXZewu0kUquU7GVFsSHwpsWEaffmLRymeSfL%2FX1EJo%3D%0A&m=Uyb56Qt%2BKVFbsV03VYVYpn8wSfEZJBXMjOz%2BQX5j0fY%3D%0A&s=b2547ec4aefa0f1b25d47bc813cab344a24c22c2464d4ff2cb199be0ef9b15cf> and here <https://urldefense.proofpoint.com/v1/url?u=http://ceph.com/docs/master/rados/troubleshooting/troubleshooting-pg/%23crush-gives-up-too-soonhttp://ceph.com/docs/master/rados/troubleshooting/troubleshooting-pg/&k=8F5TVnBDKF32UabxXsxZiA%3D%3D%0A&r=klXZewu0kUquU7GVFsSHwpsWEaffmLRymeSfL%2FX1EJo%3D%0A&m=Uyb56Qt%2BKVFbsV03VYVYpn8wSfEZJBXMjOz%2BQX5j0fY%3D%0A&s=09d9aeb34481797e2d8f24938980db3697f26d94e92ff4c72714651181329de9>.
>> I'm guessing these will address your issue.  That weird number means that no OSD was found/assigned to the PG.
>>
>>  
>>
>> -don-
> 
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