> our Ceph cluster suddenly went into a state of OSDs constantly having
> blocked or slow requests, rendering the cluster unusable. This happened
> during normal use, there were no updates, etc.

our cluster seems to have recovered overnight and is back
to normal behaviour. This morning, everything was fine
again.

This whole thing may have been triggered by deletion of
a big set of data (around 7 TB times 3x replication)
on CephFS. We'll try to repeat this and see if it happens
again.


Cheers,

Oliver


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