From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from DMZ-MAILSEC-SCANNER-3.MIT.EDU ([18.9.25.14]:50396 "EHLO dmz-mailsec-scanner-3.mit.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755849Ab1G1VY4 (ORCPT ); Thu, 28 Jul 2011 17:24:56 -0400 Message-ID: <20110728172449.8wxxte4jg0s8kcgs@webmail.mit.edu> Date: Thu, 28 Jul 2011 17:24:49 -0400 From: Gregory Magoon To: Trond Myklebust Cc: linux-nfs@vger.kernel.org Subject: Re: NFSv4 vs NFSv3 with MPICH2-1.4 References: <20110728152306.219iz5wpkcokoo4c@webmail.mit.edu> <1311886684.27285.8.camel@lade.trondhjem.org> In-Reply-To: <1311886684.27285.8.camel@lade.trondhjem.org> Content-Type: text/plain; charset=ISO-8859-1; format="flowed" Sender: linux-nfs-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Thanks for the tips...unfortunately, making the changes you suggest (removing timeo, rsize, wsize options) doesn't seem to address the issue with MPICH2 and NFSv4. Greg Quoting Trond Myklebust : > > This is getting to be a FAQ... > > 2 second timeouts over TCP are just plain wrong: they will cause you to > continuously disconnect and reconnect (as 'netstat -t' is bound to show > you). Please don't muck with the default timeo=600. > > There is also no reason to mess with rsize and wsize: allow the client > and server to autonegotiate. >