[ceph-users] Re: Large number of misplaced PGs but little backfill going on

On Sat, Mar 23, 2024, 4:26 AM Torkil Svensgaard <torkil@drcmr.dk> wrote:

Hi

... Using mclock with high_recovery_ops profile.

What is the bottleneck here? I would have expected a huge number of simultaneous backfills. Backfill reservation logjam?

mClock is very buggy in my experience and frequently leads to issues like this. Try using regular backfill and see if the problem goes away. Tyler