Check to see what your osd_memory_target is set to. The default 4GB is
generally a decent starting point, but if you have a large active data
set you might benefit from increasing the amount of memory available to
the OSDs. They'll generally prefer giving it to the onode cache first
if it's hot.
*Note: In some container based deployments the osd_memory_target might
be getting set automatically based on the container limit (and possibly
based on the memory available in the node).
Mark
On 8/2/23 11:25 PM, Ben wrote:
Hi,
We have a cluster running for a while. From grafana ceph dashboard, I saw
OSD onode hits ratio 92% when cluster was just up and running. After couple
month, it says now 70%. This is not a good trend I think. Just wondering
what should be done to stop this trend.
Many thank,
Ben
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Mark Nelson
Head of R&D (USA)
Clyso GmbH
p: +49 89 21552391 12
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