Re: The effect of changing an osd's class

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On 17/11/24 19:44, Roland Giesler wrote:
> On 2024/11/16 18:38, Anthony D'Atri wrote:
>> Disabling mclock as described here
>> https://docs.ceph.com/en/reef/rados/configuration/mclock-config-ref/ might help
> 
> I cannot see any option that allows me to disable mclock...

It's not so much disabling mclock as changing the op queue scheduler to
use wpq instead of it.

https://docs.ceph.com/en/reef/rados/configuration/osd-config-ref/#confval-osd_op_queue

ceph config set osd osd_op_queue wpq

Then restart all OSDs in suitable batches.
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