FAM not notifying of non-local changes on NFS files

[Ken Tanzer <ktanzer@desc.org>]

We're trying to use FAM to monitor files on a directory that is mounted 
via NFS.

This works fine when a file is modified via the local machine on which 
FAM is
running.  When the file is changed from the server that is exporting NFS,
however, FAM does not detect this, and does nothing.

I have tried this two ways:  At first, we had a FAM server running on 
the NFS
server (as well as on our client).  When that didn't work, we disabled 
the FAM
server on the NFS server, so that only the client has a FAM server 
running.  As
I understand it, it should do polling in this case.

I've checked all the config files & options and everything seems to be OK.
We're invoking FAM with "/usr/bin/fam -t 6 -T 0".  The -t 6 should be the
default, but I tried it anyway.  I've tried it with -C, and that doesn't 
make
any difference.  I also ran with the "-d" option to see debugging 
messages, and
nothing is generated when the file is changed remotely.

Both client and server are RedHat 8.0 machines.  Does anyone know what the
problem could be, or can offer any suggestions?  Thanks.

-- 
Kenneth Tanzer
Information Services Manager
Downtown Emergency Service Center
www.desc.org