Date: Thu, 21 Jan 1999 21:12:21 +0100 From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: current@FreeBSD.ORG Subject: Re: mountd Message-ID: <19990121211221.A11186@internal> In-Reply-To: <199901211554.KAA28454@cs.rpi.edu>; from David E. Cross on Thu, Jan 21, 1999 at 10:54:36AM -0500 References: <199901211554.KAA28454@cs.rpi.edu>
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On Thu, 21-Jan-1999 at 10:54:36 -0500, David E. Cross wrote: > I posted this awhile ago to -questions, but never received a reply. > > We have a number of FreeBSD NFS servers here. Occasionally we need to > change the exports list on the servers and send mountd a SIGHUP. This > leads to a condition that in many ways is much worse than a server reboot. > > What happens is for the duration of mountd reading the exports file it denies > all NFS requests. This has a number of bad effects; 1) any user home and > system directories become unavailable, with the error 'permission denied' 2) > (and this is far worse), any process with a mapped .text segment off of the > NFS server, should it branch to code not in the cache gets immediately killed. > This include user processes that are running from home directories, and system > processes (such as ssh). If we were to reboot the machine it would just > hang those connections until the machine came back, without killing anyone. > > Is there a solution to this problem? I know that none of HP-UX, IRIX, or > Solaris have this problem. Please, please, if anyone knows a solution for this, drop me a note also... Thanks, -Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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