On Mon, 19 Jan 2004, Ogden, Aaron A. wrote:

> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED] On Behalf Of Greg Bradner
> > Sent: Monday, January 19, 2004 9:49 AM
> > To: [EMAIL PROTECTED]
> > Subject: [autofs] running out of mount points
> > 
> > 
> > I wanted to repost this plea. I am really in a bind and could use some
> 
> > help. I need to mount these users on the mail server.
> > BTW: this is with autofs 4.1.0
> > 
> 
> 
> Once you get past this hurdle you may run into another problem, you may
> find (as I did)
> that you can't actually mount 1200 filesystems... RPC will start running
> into problems
> around 800 mounts or slightly less.  I've been told that this happens
> because RPC is using
> a separate port for each NFS mount, it starts at port 800 and counts
> down to 1, so when the
> system runs out of ports it is once again unable to mount anything.
> Supposedly there is
> some work being done to rewire linux RPC so that it uses one port *per
> server* rather than
> one port per NFS mount, that change would fix the problem for any
> reasonable configuration.

I have worked on Tronds' patch for that. I posted my first attempt on 
the nfs list to see if Trond could sanity check it but he was clearly to 
busy. So I went ahead and did the best I could. This resulted in a port 
for 2.6 and 2.4 vanila kernel only. It is entirely untested and I expect 
will have problems as the depth of my understanding of the NFS subsystem 
is poor at best. I found trying to make it apply to a RedHat 2.4 kernel 
was something of a nightmare and have left it there for now.

Ian

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