Hi,
I don't think NFS has the possibility to push notifications about changes in
the filesystem to the clients. NFSv3 is stateless so the server does not even
know about the clients. NFSv4 I don't know much about, but I have never
heard of notifications.
So for NFS kqueue would only trigger if the change is on the same client as
where the kqueue is lurking.
Otherwise you could run some daemon on the server which pushes the notifications
out of band of the NFS protocol to the clients. Which probably gives interesting
results together with the caching of the NFS client. But that is another story
we see at work. (postfix -> you have mail! -> NFS -> imap -> no you
don't -> O yes, you have. :-) )
Regards,
Ronald.
Van: Daniel Braniss <danny at cs.huji.ac.il>
Datum: woensdag, 11 november 2020 09:40
Aan: stable at freebsd.org
Onderwerp: kqueue and NFS>
> Hi,
> I have a vague recollection that kqueue does not work for NFS files,
> any chance that this will be made possible?
>
> cheers,
> danny
>
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