[ceph-users] Re: Proper solution of slow_ops

On 2/9/21 7:29 AM, Michal Strnad wrote:

we are looking for a proper solution of slow_ops. When the disk failed, node is restated ... a lot of slow operations appear. Even if disk (OSD) or node is back again most of slow_ops are still there. On the internet we found only advice that we have to restart monitor. But this is not right approach. Do you have some better solution? How did you treat slow_ops in your production clusters?

We are running the latest nautilus on all clusters.

This config setting should help: ceph config set osd osd_op_queue_cut_off high -- Milan Kupcevic Senior Cyberinfrastructure Engineer at Project NESE Harvard University FAS Research Computing