Do you do things like[1] with the vm's?
[1]
echo 120 > /sys/block/sda/device/timeout
-----Original Message-----
From: Francois Legrand [mailto:fleg@lpnhe.in2p3.fr]
Sent: donderdag 25 juni 2020 19:25
To: ceph-users(a)ceph.io
Subject: [ceph-users] Re: Removing pool in nautilus is incredibly slow
I also had this kind of symptoms with nautilus.
Replacing a failed disk (from cluster ok) generates degraded objects.
Also, we have a proxmox cluster accessing vm images stored in our ceph
storage with rbd.
Each time I had some operation on the ceph cluster like adding or
removing a pool, most of our proxmox vms lost contact with their system
disk in ceph and crashed (or remount system storage in read-only mode).
At first I thought it was a network problem, but now I am sure that it's
related to ceph becoming unresponsive during background operations.
For now, proxmox cannot even access ceph storage using rbd (it fails
with timeout).
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