Re: set rbd metadata 'conf_rbd_qos_bps_limit', make 'mkfs.xfs /dev/nbdX ' blocked

[Jason Dillaman <jdillama@xxxxxxxxxx>]

(CCing ceph-users since that is the appropriate forum).

On Mon, Nov 16, 2020 at 4:44 AM liugangbiao@xxxxxxxxxxxxxxxxxxxx <liugangbiao@xxxxxxxxxxxxxxxxxxxx> wrote:

Hi dillaman，

After I set rbd metadata 'conf_rbd_qos_bps_limit'  as blow  (600MB/s), the image size is 1TB

Then I  use 'mkfs.xfs' to format this image, It's stuck for a long time and never return.

After  unset  'conf_rbd_qos_bps_limit',  'mkfs.xfs'  can return successfully, 

The Ceph version is 14.2.10, Any suggestion to reslove this porblem?

Have you tried using the "-K" option to "mkfs.xfs" to disable discard at mkfs time? Perhaps it's issuing a discard region bigger than 600MiB?

 

Beset Regards，

LiuGangbiao

--

Jason

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