Re: Quincy: mClock config propagation does not work properly

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Hi Sridhar,

Thanks for the heads-up on this issue and for the workarroud.

Luis Domingues
Proton AG

------- Original Message -------
On Wednesday, April 6th, 2022 at 1:43 PM, Sridhar Seshasayee <sseshasa@xxxxxxxxxx> wrote:

> Hi Luis,
>
> While I work on the fix, I thought a workaround could be useful. I am adding
> it here and also in the tracker I mentioned in my previous update.
>
> --
>
> Workaround
>
> Until a fix is available, the following workaround may be used
> to override the parameters:
>
> 1. Run the injectargs command as shown in the following example
> to override the mclock settings.
>
> $ ceph tell osd.0 injectargs '--osd_mclock_scheduler_background_recovery_res=10'
>
> OR
>
> 2. Another alternative command you could use is:
>
> $ ceph daemon osd.0 config set osd_mclock_scheduler_background_recovery_res 10
>
> 3. The above settings are ephemeral and are lost in case the
> OSD restarts. To ensure that the above values are retained
> after an OSD restarts, run the following additional command,
>
> $ ceph config set osd.0 osd_mclock_scheduler_background_recovery_res 10
>
> The above steps must be followed for any subsequent change to
> the mclock config parameters when using the 'custom' profile.
>
> --
>
> Thanks,
>
> -Sridhar
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