From owner-freebsd-fs@FreeBSD.ORG Tue Oct 15 19:53:22 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id A6491B4D for ; Tue, 15 Oct 2013 19:53:22 +0000 (UTC) (envelope-from ericbrowning@skaggscatholiccenter.org) Received: from mail-pd0-f175.google.com (mail-pd0-f175.google.com [209.85.192.175]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 81F3923E1 for ; Tue, 15 Oct 2013 19:53:22 +0000 (UTC) Received: by mail-pd0-f175.google.com with SMTP id q10so9249914pdj.6 for ; Tue, 15 Oct 2013 12:53:16 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=nu+JXxwMOqyl1InB3ZUDjd7TwXEM4V7zQyZ+drSMxC0=; b=PMieDtrD8xc+VZi3pDFgkSyLx6PEwC07zaS7y+CxObI0oHhdCxBYLfElpTDFGvft/r sh6nkwqsQrGFEZftD18g6ROmnaMF661KA7cZNvdejMKfwJ6WWystcYhibrzotv7LDTjc r69FNJgE9FC1jCziI/rtx02ehQIvONmWmzeTbSxnzslKuHWcErrO09sVF9idO9gFZ2P+ eeQPXkTrOI9pJ3n2fF6zOCMzQsq9jyIsEDByHShKQU/c+fkGiB6slJ39RvkL5YqaFH13 DUuvg1B7BsoKmXnLgBzUJn3vAtEVyWJXh/av4Up6eKEkOMxS4ec9nn5RkIu1+21YS0py ENHA== X-Gm-Message-State: ALoCoQnXueYFgOzfN+i3Jyz28y6gb5PidWTMm2sXyugW6nufVc33CrwJVJQoAAyh6Wv7mvxNHLxg MIME-Version: 1.0 X-Received: by 10.66.100.227 with SMTP id fb3mr45570725pab.26.1381866796499; Tue, 15 Oct 2013 12:53:16 -0700 (PDT) Received: by 10.70.102.133 with HTTP; Tue, 15 Oct 2013 12:53:16 -0700 (PDT) Date: Tue, 15 Oct 2013 13:53:16 -0600 Message-ID: Subject: What is the NFS max thread limit From: Eric Browning To: FreeBSD FS Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Oct 2013 19:53:22 -0000 I'm currently still debugging slow NFS performance on mac clients. Running 9 stable with a mix of 200 Mac OS X 10.8, 10.7 and 10.6 clients. Periodically I get this error on the mac side: automountd[1766]: set_and_fake_mapent_mntlevel: subdir=/Contents error: Contents not found in map=-fstab I'm wondering with 200 clients with five nfsiod threads (~1000 nfsiod threads total) am I oversubscribing the nfs server? I can't seem to configure any more than 256 threads (nfs_server_flags="-t -n 256"). When I configure above 256 I get an error about it resetting to 4: Starting nfsd. nfsd: nfsd count 512; reset to 4 Tomorrow when all the mac clients have restarted I have changed their nfsiod threads down to 1 each to see if this is indeed the issue. Thanks in advance, -- Eric Browning Systems Administrator 801-984-7623 Skaggs Catholic Center Juan Diego Catholic High School Saint John the Baptist Middle Saint John the Baptist Elementary