Re: NFS4 over VPN hangs when connecting > 2 clients

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On Mar 12, 2012, at 5:24 PM, Nikolaus Rath wrote:

> Alright, it seems that this was the problem. With correct clientaddr, I
> haven't been able to produce any freezes for the last 15 minutes
> (usually it happens in ~20 seconds).
> 
> The weird thing is that I cannot reproduce the wrong clientaddr
> autodetection when I mount the NFS volumes from the command line. It
> seems to happen only when the mounting is done by mountall during the
> boot sequence.
> 
> In other words, this fstab entry results in freezes and a clientaddr of 0.0.0.0:
> 
> spitzer:/opt /opt        nfs4    bg 0  0
> 
> While this one, followed by a "mount /opt" on the console as soon as I'm
> able to log in, works just fine (and has a correct cliendaddr):
> 
> spitzer:/opt /opt        nfs4    noauto 0  0

That's almost certainly because networking isn't up during boot.  The "bg" option keeps trying the mount until it succeeds, but the system started the mount process before there was a source address on the system.

-- 
Chuck Lever
chuck[dot]lever[at]oracle[dot]com




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