On 01/17/2017 09:21 PM, David Turner wrote:
Looking through the additional osd config options for scrubbing show a
couple options that can prevent a PG from scrubbing immediately.
osd_scrub_during_recovery - default true - If false, no new scrub can
be scheduled while their is active recovery.
I will check this setting tomorrow, but i am pretty sure that's it still
set to the default value. Our cluster was most of the time today in a
healthy state.
osd_scrub_load_threshold - default 0.5 - Ceph will not scrub when the
system load is higher than this number.
osd_scrub_load_threshold seems like a likely cause of what you are seeing.
This one was also on my list, so i upped this to 5.0 on all OSDs for a
brief moment and still nothing happened. But i did not check if the
'copy OSD's' where below 5 at that moment.
--
Regards,
Richard.
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