From owner-freebsd-current Mon Nov 13 11:28:31 1995 Return-Path: owner-current Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id LAA20949 for current-outgoing; Mon, 13 Nov 1995 11:28:31 -0800 Received: from kitten.mcs.com (Kitten.mcs.com [192.160.127.90]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id LAA20943 for ; Mon, 13 Nov 1995 11:28:25 -0800 Received: from venus.mcs.com (root@Venus.mcs.com [192.160.127.92]) by kitten.mcs.com (8.6.10/8.6.9) with SMTP id NAA15348; Mon, 13 Nov 1995 13:28:18 -0600 Received: by venus.mcs.com (/\==/\ Smail3.1.28.1 #28.5) id ; Mon, 13 Nov 95 13:28 CST Message-Id: Subject: Re: ISP state their FreeBSD concerns To: terry@lambert.org (Terry Lambert) Date: Mon, 13 Nov 1995 13:28:18 -0600 (CST) From: "Karl Denninger, MCSNet" Cc: current@FreeBSD.org In-Reply-To: <199511131823.LAA16943@phaeton.artisoft.com> from "Terry Lambert" at Nov 13, 95 11:23:01 am X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 1462 Sender: owner-current@FreeBSD.org Precedence: bulk > > > The only other issue we have here is the nasty NFS-write problem that makes > > shared access to remote resources tricky at best. If *THAT* was fixed we > > would be running FreeBSD exclusively here. > > Is this the "write with no permission truncate" or what? What is this > NFS write problem? The symptom is that processes block while waiting for writes to complete, sometimes for as long as several *minutes*. For a system which is taking hundreds of hits per minute, this quickly blows the system sky-high. > > I've been using FreeBSD exclusively for news service for quite a while > > (some clients use NFS, others NNTP to read) and its been fine. What we > > have a problem with is using it for our web server and general user system > > farm; the small NFS writes that the httpds do to the log disks cause system > > lockups and hundreds of processes in a hung state. The problem is understood, > > but there is no immediate path to a fix from what I've been told. > > Who understands this problem, so I can talk to them? Mr. Dyson has some ideas... -- Karl Denninger (karl@MCS.Net)| MCSNet - The Finest Internet Connectivity Modem: [+1 312 248-0900] | (shell, PPP, SLIP, leased) in Chicagoland Voice: [+1 312 803-MCS1] | 7 Chicagoland POPs, ISDN, 28.8, much more Fax: [+1 312 248-9865] | Email to "info@mcs.net" WWW: http://www.mcs.net ISDN - Get it here TODAY! | Home of Chicago's *Three STAR A* Clarinet feed! -