Re: MDS lost, Filesystem degraded and wont mount

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Dec 7, 2020 at 1:28 PM Janek Bevendorff
<janek.bevendorff@xxxxxxxxxxxxx> wrote:
>
>
> > This sounds like there is one or a few clients acquiring too many
> > caps. Have you checked this? Are there any messages about the OOM
> > killer? What config changes for the MDS have you made?
>
> Yes, it's individual clients acquiring too my caps. I first ran the
> adjusted recall settings you suggested after we had gone through several
> bugs. Right now I am trying distributed ephemeral pinning with 3 MDS
> Dan's suggestion of 6x the default values for recall from the MDS
> documentation thread. So far, it's working quite well.

Wow! Distributed epins :) Thanks for trying it. How many
sub-directories under the distributed epin'd directory? (There's a lot
of stability problems that are to be fixed in Pacific associated with
lots of subtrees so if you have too large of a directory, things could
get ugly!)

> > I'm hopeful your problems will be addressed by:
> > https://tracker.ceph.com/issues/47307
> That does indeed sound a bit like it might fix these kind of issues.

-- 
Patrick Donnelly, Ph.D.
He / Him / His
Principal Software Engineer
Red Hat Sunnyvale, CA
GPG: 19F28A586F808C2402351B93C3301A3E258DD79D
_______________________________________________
ceph-users mailing list -- ceph-users@xxxxxxx
To unsubscribe send an email to ceph-users-leave@xxxxxxx



[Index of Archives]     [Information on CEPH]     [Linux Filesystem Development]     [Ceph Development]     [Ceph Large]     [Ceph Dev]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [xfs]


  Powered by Linux