Hi, Nick
Thank you for the answer!

It's still unclear for me, do those options have no effect at all?
Or disk thread is used for some other operations?

09.11.2017, 04:18, "Nick Fisk" <[email protected]>:
>>  -----Original Message-----
>>  From: ceph-users [mailto:[email protected]] On Behalf Of
>>  ??????? ???????
>>  Sent: 08 November 2017 16:21
>>  To: [email protected]
>>  Subject: [ceph-users] Recovery operations and ioprio options
>>
>>  Hello,
>>  Today we use ceph jewel with:
>>    osd disk thread ioprio class=idle
>>    osd disk thread ioprio priority=7
>>  and "nodeep-scrub" flag is set.
>>
>>  We want to change scheduler from CFQ to deadline, so these options will
>>  lose effect.
>>  I've tried to find out what operations are performed in "disk thread".
>
> What I
>>  found is that only scrubbing and snap-trimming operations are performed in
>>  "disk thread".
>
> In jewel those operations are now in the main OSD thread and setting the
> ioprio's will have no effect. Use the scrub and snap trim sleep options to
> throttle them.
>
>>  Do these options affect recovery operations?
>>  Are there any other operations in "disk thread", except scrubbing and
>
> snap-
>>  trimming?
>>
>>  --
>>  Regards,
>>  Aleksei Zakharov
>>  _______________________________________________
>>  ceph-users mailing list
>>  [email protected]
>>  http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

-- 
Regards,
Aleksei Zakharov
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