You’re absolutely right, of course, the balancer wouldn’t cause
degraded PGs. Flapping OSDs seems very likely here.
Zitat von Josh Baergen <jbaergen@xxxxxxxxxxxxxxxx>:
I assume it's the balancer module. If you write lots of data quickly
into the cluster the distribution can vary and the balancer will try
to even out the placement.
The balancer won't cause degradation, only misplaced objects.
Degraded data redundancy: 260/11856050 objects degraded
(0.014%), 1 pg degraded
That status definitely indicates that something is wrong. Check your
cluster logs on your mons (/var/log/ceph/ceph.log) for the cause; my
guess is that you have OSDs flapping (rapidly going down and up again)
due to either overload (disk or network) or some sort of
misconfiguration.
Josh
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