onn...@redhat.com>
发送时间: 2021年11月20日 3:20
收件人: 胡 玮文<mailto:huw...@outlook.com>
抄送: Dan van der Ster<mailto:d...@vanderster.com>;
ceph-users@ceph.io<mailto:ceph-users@ceph.io>
主题: Re: [ceph-users] Re: Annoying MDS_CLIENT_RECALL Warning
On Fri, Nov 19, 2021 at 2:14 AM 胡 玮文 wrot
On Fri, Nov 19, 2021 at 2:14 AM 胡 玮文 wrote:
>
> Thanks Dan,
>
> I choose one of the stuck client to investigate, as shown below, it currently
> holds ~269700 caps, which is pretty high with no obvious reason. I cannot
> understand most of the output, and failed to find any documents about it.
>
Hi Patrick,
One of the stuck client has num_caps at around 269700, and well above the
number of files opened on the client (about 9k). See my reply to Dan for
details. So I don't think this warning is simply caused by
"mds_min_caps_working_set" being set too low.
> -邮件原件-
> 发件人: Patric
Thanks Dan,
I choose one of the stuck client to investigate, as shown below, it currently
holds ~269700 caps, which is pretty high with no obvious reason. I cannot
understand most of the output, and failed to find any documents about it.
# ceph tell mds.cephfs.gpu018.ovxvoz client ls id=7915658
On Thu, Nov 18, 2021 at 12:36 AM 胡 玮文 wrote:
>
> Hi all,
>
> We are consistently seeing the MDS_CLIENT_RECALL warning in our cluster, it
> seems harmless, but we cannot get HEALTH_OK, which is annoying.
>
> The clients that are reported failing to respond to cache pressure are
> constantly chang
Hi,
We sometimes have similar stuck client recall warnings.
To debug you can try:
(1) ceph health detail
that will show you the client ids which are generating the
warning. (e.g. 1234)
(2) ceph tell mds.* client ls id=1234
this will show lots of client statistics for the session. Notabl
