Re: Client cache updates missing? (2.6.31.5)

[Jesper Krogh <jesper-Q2TZfHgGEy4@public.gmane.org>]

J. Bruce Fields wrote:
>> Wether or not it has anything to do. The file has been written to the
>> NFS-server from another NFS-client. The server is running 2.6.31.5 and
>> the client that above was run on is 2.6.24-24 (Ubuntu Jaunty), the
>> client that wrote the file was running 2.6.29.1.
> 
> I this v3 or v4?  What's the exported filesystem?  (ext3?)

v3 and ext3

> It's probably a timestamp resolution problem; if the directory was
> modified twice in the same second, the later change won't change the
> timestamp, and so the client may assume its cache is still good.

That's not nice..  but given the situation is may quite well be the
problem.

> Recent clients try a little harder to work around this. 

How recent and how much harder?

> On the server
> side it should help to switch to a filesystem with better than 1-second
> timestamp resolution.

Converting filesystems takes time, the one with people $HOME on was
expected to be the last one to get "upgraded".

Jesper
-- 
Jesper