bdev_async_discard_threads more than 1 issue have been fixed at 18.2.7. pls
use `top -H -p <osd pid>`  observe osd thread cpu load, is there any
abnormal situation? And what abnormal logs are there in osd log?

Steven Vacaroaia <[email protected]> 于2025年5月13日周二 02:18写道:

> Hi,
>
> After a cephadm upgrade from 18.2.2 to 18.2.7 that worked perfectly,
> I am noticing lots ( 42 out of 161 OSDs ) "slow operations in bluestore"
> errors
>
> My cluster has all 3 types of OSDs ( NVME, SSD, HDD+ journaling)
>
> I found some articles mentioning below setting but it did not help
>
> Anyone else having this issue ?
>
> Thanks
> Steven
>
>      bdev_enable_discard: "true" # quote
>       bdev_async_discard_threads: "1" # quote
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