Path: utzoo!yunexus!ists!mike
From: mike@ists.ists.ca (Mike Clarkson)
Newsgroups: comp.protocols.nfs
Subject: Re: WHat is "Stale NFS handle"?
Message-ID: <350@ists.ists.ca>
Date: 22 Jan 89 06:59:04 GMT
Article-I.D.: ists.350
References: <55699@pyramid.pyramid.com>
Organization: Institute for Space and Terrestrial Science
Lines: 28

In article <55699@pyramid.pyramid.com>, sas@pyrps5 (Scott Schoenthal) writes:
> NB:  The NFS server is stateless and does not keep track of how many
> client references are active against files managed by the server.
> 
> In the Sun UNIX port of NFS, removal of a file increments a generation
> count on the inode.  The generation field is encoded into the file handle
> that the NFS server passes to the client in the lookup.

On a related topic:

If a client mounts a NFS partition read-only, then there seems to be
even more caching of information on the client.  If even one byte of a
file on the read-only partition is changed on the server (by someone on
the server), then NFS may error accessing the file, and possibly other files
on that partition.

My question is: is there any way to refresh the cache information short
of unmounting and remounting the partition?  A short little program maybe?


Mike.


-- 
Mike Clarkson					mike@ists.UUCP
Institute for Space and Terrestrial Science	mike@ists.ists.ca
York University, North York, Ontario,		uunet!mnetor!yunexus!ists!mike
CANADA M3J 1P3					+1 (416) 736-5611