CEPH - manual scheduling of scrub operations

N

np-prxmx

Active Member
May 11, 2020
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Hello,
I've CEPH Cluster, and from a week I'm seeing strange slow perfomance in heartbeat, with high latency.
So I'm evaluating to change the default scrub schedule. is somet hing that you suggest?
Do you need some tip about it?

Thanks in advance.
 
From WebUI, in Ceph -> OSD, you can enable noscrub and nodeepscrub flags so no scrub activity will be started. You can then monitor your latencies.

Every time I've seen latency spikes has been because of dying disk(s) or misbehaving OSD process that got solved restarting them one by one and waiting for status to be fully OK before restarting the next.
 
Hi Victor,

yes, thanks I will do. But, anyway, do you know how to modify the schedule? or better how to improve it?
 
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