Date: Sat, 21 Jul 2007 10:45:25 +1000 From: Norberto Meijome <freebsd@meijome.net> To: Robert Watson <rwatson@FreeBSD.org> Cc: freebsd-net@freebsd.org, "Eric L. Anderson" <anderson@more.net> Subject: Re: Max NFS mounts for a FreeBSD client? Message-ID: <20070721104525.44603382@localhost> In-Reply-To: <20070720180546.X39675@fledge.watson.org> References: <20070720145932.GP6053@more.net> <20070720180546.X39675@fledge.watson.org>
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On Fri, 20 Jul 2007 18:07:37 +0100 (BST) Robert Watson <rwatson@FreeBSD.org> wrote: > > On Fri, 20 Jul 2007, Eric L. Anderson wrote: > > > What is the limit of NFS mounts a FreeBSD server can make and how do you > > modify this limit? > > > > The only reference I could find to this question on the FreeBSD lists is > > http://lists.freebsd.org/pipermail/freebsd-questions/2004-July/051947.html > > > > I have ran a similar test and the same thing happens after 420 NFS mounts. > > This is on both FreeBSD 6.0 and 6.2. > > > > We have recently run into a problem where we are bumping up against some > > kind of limit to the number of NFS mounts on our FreeBSD servers. > > Sounds a bit like something is running out of reserved ports to use -- the > credentials error may mean that a port number >1023 was used for an NFS > connection. Given that reserved ports start around 600, 420 is about the > right number of sockets to reach 1024. Hi, Reserved ports controlled by sysctl : net.inet.ip.portrange.reservedhigh: 1023 net.inet.ip.portrange.reservedlow: 0 although the 600 rwatson mentions seems to be this one: net.inet.ip.portrange.lowfirst: 1023 net.inet.ip.portrange.lowlast: 600 You should be able to tweak these values - as long as you have ephemeral ports for the rest of your network activity, you should be ok, right? _________________________ {Beto|Norberto|Numard} Meijome "Discovery consists of looking at the same thing as everyone else does and thinking something different." Albert Szent-Gyorgyi, 1937 Nobel Prize in Physiology and Medicine I speak for myself, not my employer. Contents may be hot. Slippery when wet. Reading disclaimers makes you go blind. Writing them is worse. You have been Warned.
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