Re: ceph osd commit latency increase over time, until restart

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Quoting Wido den Hollander (wido@xxxxxxxx):
 
> Just wanted to chime in, I've seen this with Luminous+BlueStore+NVMe
> OSDs as well. Over time their latency increased until we started to
> notice I/O-wait inside VMs.

On a Luminous 12.2.8 cluster with only SSDs we also hit this issue I
guess. After restarting the OSD servers the latency would drop to normal
values again. See https://owncloud.kooman.org/s/BpkUc7YM79vhcDj

Reboots were finished at ~ 19:00.

Gr. Stefan

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