Re: MDS cache always increasing

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Ok, thanks for the clarification. This does disprove my theory.

On Wed, Sep 4, 2024 at 12:30 AM Sake Ceph <ceph@xxxxxxxxxxx> wrote:
>
> But the client which is doing the rsync, doesn't hold any caps after the rsync. Cephfs-top shows 0 caps. Even a system reboot of the client doesn't make a change.
>
> Kind regards,
> Sake
> > Op 03-09-2024 04:01 CEST schreef Alexander Patrakov <patrakov@xxxxxxxxx>:
> >
> >
> > MDS cannot release an inode if a client has cached it (and thus can
> > have newer data than OSDs have). The MDS needs to know at least which
> > client to ask if someone else requests the same file.
> >
> > MDS does ask clients to release caps, but sometimes this doesn't work,
> > and there is no good troubleshooting guide except trying different
> > kernel versions and switching between kernel client / fuse / nfs.



-- 
Alexander Patrakov
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