Re: [NFS] NFS performance debugging

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On Thu, Jun 26, 2008 at 08:19:29AM +0200, Adrian von Bidder wrote:
> On Wednesday 25 June 2008 18.56:58 J. Bruce Fields wrote:
> > On Wed, Jun 25, 2008 at 09:02:42AM +0200, Adrian von Bidder wrote:
> > > First tries showed
> > >  * There are no acl on my files now
> >
> > NFSv4 uses an entirely different type of ACL, for which you need
> > different client-side tools; see
> 
> I'm absolutely confused on the state of nfs4 acls.  There are so many old 
> mailing list posts around that it's difficult to see what information 
> applies to the currentimplementation.  So: are POSIX acls in the server 
> filesystem somehow mapped to nfsv4 acls on the client side?  I understand 
> there understands an RFC proposal on how to do this, and 
> http://wiki.linux-nfs.org/wiki/index.php/ACLs is very interesting but 
> doesn't really cover the current state of the implementation.

I've attempted to update that wiki page to fix that problem; could you
take a look and tell me whether the changes help?

> > 	http://www.citi.umich.edu/projects/nfsv4/linux/nfs4-acl-tools/
> 
> Hmm.  Not packaged in Debian yet?????? ;-)  So work to do for me if I end up 
> using nfs4

Yes.  Volunteers to package those things welcomed....

(Or maybe we should get them into nfs-utils at some point.  I don't
know.)

--b.

> > >  * user id mapping seems funny: some users map to nobody, others map
> > > correctly.  Huh?
> >
> > And whereas v2/v3 require only uid's and gid's to agree, v4 (if you're
> > using auth_sys) requires uid's, gid's, *and* user and group names to
> > agree.
> 
> I got that fixed.  "localdomain" in idmapd.conf...
> 
> cheers
> -- vbi
> 
> 
> -- 
> > Maybe that question would be a good starting point: What's the use for
> > a gender field there?
> Stalking.
>         -- Miriam Ruiz, Marco d'Itri (im that order)



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