From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <nfsv4-bounces@linux-nfs.org>
Date: Wed, 11 Feb 2009 15:26:34 -0500
To: Jeff Garzik <jeff@garzik.org>
Subject: Re: NFS clients' use of fs_locations?
Message-ID: <20090211202634.GA27686@fieldses.org>
References: <49932E72.8060209@garzik.org>
In-Reply-To: <49932E72.8060209@garzik.org>
From: "J. Bruce Fields" <bfields@fieldses.org>
Cc: linux-nfs@vger.kernel.org, nfsv4@linux-nfs.org
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On Wed, Feb 11, 2009 at 03:00:50PM -0500, Jeff Garzik wrote:
> According to the NFSv4 spec (section 6.1), regarding fs_locations,
> 
> 	On first access of the filesystem, the client should obtain the
> 	value of the fs_locations attribute. If, in the future, the
> 	client finds the server unresponsive, the client may attempt to
> 	use another server specified by fs_locations.
> 
> Does any known client actually fail over to another fs_location, as 
> described here?
> 
> I am implementing the server side of this...  AFAICT Linux barely uses 
> fs_locations, and Solaris just crashes.

Yeah, Linux only uses fs_locations when it crosses a mountpoint to a new
filesystem and finds that filesystem is only available elsewhere.

Maybe AIX?

--b.
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