Date: Fri, 14 Oct 2005 19:40:25 +0200 From: Nicolas KOWALSKI <Nicolas.Kowalski@imag.fr> To: freebsd-fs@FreeBSD.org Subject: Re: FreeBSD NFS server not responding to TCP SYN packets from Linux/SunOS clients Message-ID: <vqopsq89euu.fsf@corbeau.imag.fr> In-Reply-To: <434FD761.3050506@centtech.com> References: <Pine.LNX.4.64.0510141021290.22064@corbeau.imag.fr> <20051014160128.hev160v52ossokg0@wwws.cs.ait.ac.th> <20051014045824.V5343@odysseus.silby.com> <vqou0fkw92s.fsf@obiou.imag.fr> <434FD761.3050506@centtech.com>
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Eric Anderson <anderson@centtech.com> writes: > Nicolas KOWALSKI wrote: >> Mike Silbersack <silby@silby.com> writes: >> >>>Actually, there may be a quick fix for this specific machine. If >>>you set net.inet.tcp.keepidle to 1 minute (60*whatever kern.hz is), >>>that'll cause keepalive packets to be sent every minute to an idle >>>connection, rather than every 2 hours. That would kill the stuck >>>connections much quicker. >> Unfortunately, this does not work as expected. I just tested with >> my workstation (Linux 2.6), with NFS filesystems mounted with TCP; >> when the station rebooted abruptely, mounting the same NFS >> filesystems hung more than 1 minute (15 minutes just now). During >> this hang, I saw on the server, using netstat, the nfsd process >> related to my workstation in ESTABLISHED state. > > > Man fixmount? This is a FreeBSD-only command apparently. I did not find it on Linux or Solaris. It could have been useful, by calling it before NFS filesystems are mounted on clients, yes. Thanks anyway, -- Nicolas
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