Hi Matt,
On 9/22/20 5:44 AM, Matt Larson wrote:
I tried this:
`sudo ceph tell 'osd.*' injectargs '--osd-max-backfills 4'`
Which has increased to having 10 simultaneous backfills and a higher
10X higher rate of data movements. It looks like I could increase this
further by increasing the number of simultaneous recovery operations,
but changing that parameter to 20 didn't cause a change. The command
warned that OSDs may need to be restarted before this takes effect:
sudo ceph tell 'osd.*' injectargs '--osd-recovery-max-active 20'
I'll let it run overnight with a higher backfill rate and see if that
is sufficient to let the cluster catch up.
The commands are from
(
http://lists.ceph.com/pipermail/ceph-users-ceph.com/2018-January/023844.html)
Alternatively, you could have used the Dashboard's OSD Recovery Priority
Feature (see screen shot) ;)
Lenz
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