Received: by 2002:a05:7412:b130:b0:e2:908c:2ebd with SMTP id az48csp1961391rdb; Sun, 19 Nov 2023 18:57:32 -0800 (PST) X-Google-Smtp-Source: AGHT+IHVMquHVyW4EPOoh2gBV6i78HcLt2l8KDeq6pa3+kFaiZ4AS+unK+BPZT+RkVDN9joTZhFZ X-Received: by 2002:a05:6870:1784:b0:1f4:b0cb:f27e with SMTP id r4-20020a056870178400b001f4b0cbf27emr8524326oae.13.1700449052287; Sun, 19 Nov 2023 18:57:32 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1700449052; cv=none; d=google.com; s=arc-20160816; b=KuqaMQwfxff5BCqMkKTUR6wKblimKrM7vMb2BeQyVePp9H0znNSEnL1XBespgXuWkJ HTCLzjuBsZGDuyJvrhQ7OtzNKJVFl5qVLii8YkhO8GCMJr8WK1hZE1bgzYqz8XkA1B0d CN8agxLxxEyimv7WRMoHAu38sB+vP2U4MTO32eMfKuQPB2dWO2+d2yEVvh3D+dmV9uln YtlPy44jvrM6AtOR7JUGZE4FkRbsH4rmgBofSSHqtZhdu4r3KRVMxUYalcbLTOK8EERH 206wie/fI/w6fpnFVV0tgV6mrJuuECS6IVneShrMGwrMc1/zN02v/g+yVyPeGarkdVMu r36Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:cc:to:subject :message-id:date:from:in-reply-to:references:mime-version :dkim-signature; bh=kEwo5TnWwj4z7rW/hk01zG7pXRzlHOHfm0+nkZUAB+Y=; fh=23ASxIfWHwvNONqtG4tUoVnKT/8zEqUJNlhkjoO8ksI=; b=NIq5CLKOvc+J4m3f5zKr4nAQ3qZS5Cp+PqX0x4avd8uOqGxNs6PXpZAPVMsrw1fkxk pXJES9nfjWFfsDH1TK1eYsTr5en6Atorjgq5QB27Jf5yhJcOcnTCL8rZvgOiYUUp9bn7 CNEGk6IvEilOoRXkqQkvJ23PgNWGL+GrOTqRFJvPQsPjins1T6TJAMxOw449R1fNhPYn 2ojS31upjtgeB1UcyQDslKC2ZFCT5rVRLR8WRzaxKEfFLZUcWv3a9zr/mCgrMAXSMcza ZKdsEW2LpEw8MCXgii2mcBiMwDVk99W+WLLZI4g33LBsIXJaY0ldLOMfDRWsVcLRClid g6PQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@umich.edu header.s=google-2016-06-03 header.b=sDOoepda; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=umich.edu Return-Path: Received: from lipwig.vger.email (lipwig.vger.email. [23.128.96.33]) by mx.google.com with ESMTPS id s15-20020a056a00194f00b006cb6fb35ba2si3091814pfk.82.2023.11.19.18.57.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Nov 2023 18:57:32 -0800 (PST) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) client-ip=23.128.96.33; Authentication-Results: mx.google.com; dkim=pass header.i=@umich.edu header.s=google-2016-06-03 header.b=sDOoepda; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=umich.edu Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id B98AC8061CF8; Sun, 19 Nov 2023 18:57:26 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231769AbjKTC5S (ORCPT + 99 others); Sun, 19 Nov 2023 21:57:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231714AbjKTC5R (ORCPT ); Sun, 19 Nov 2023 21:57:17 -0500 Received: from mail-lj1-x230.google.com (mail-lj1-x230.google.com [IPv6:2a00:1450:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 72DD812D for ; Sun, 19 Nov 2023 18:57:14 -0800 (PST) Received: by mail-lj1-x230.google.com with SMTP id 38308e7fff4ca-2c6eac9c053so11532161fa.1 for ; Sun, 19 Nov 2023 18:57:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=umich.edu; s=google-2016-06-03; t=1700449033; x=1701053833; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=kEwo5TnWwj4z7rW/hk01zG7pXRzlHOHfm0+nkZUAB+Y=; b=sDOoepdaX9BeHnjRBpGfVMdyWVwvTwIBXjTSSryBzckRTut+IS5iPi7nhfPptsg7kX ObucCVrCvcsjQfemN5/Ons8ooHlK1TxywfDYHyyJN+cXRrklAxq8gPXegh36nrO9PYf+ RBdt6vYtQLrhzO2UF8kimD7/bfGBxSDj2YYWfvvGVpdoee4HzeXRJRM3kBh1aV8PwfeQ yKhhLR8pNtu8d57K/pcedmgDIMTv06rPMDGdxUHhCkhYbuH4bgnpNSscOGlqCcvJAEUt LFlclvfAbJJYuUOL+BwrrkkVRczopsNuv3CyrjMCNbQYSlrTb00961Lsk5M2ony+u91a B3Tg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700449033; x=1701053833; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=kEwo5TnWwj4z7rW/hk01zG7pXRzlHOHfm0+nkZUAB+Y=; b=bpq8FzK09UNZXoNITbv27E82hgptu53vLy5z3VoU2NdEc6s3n9Vvi7gQXiJksIOd1y gtDfieTXoguCPsMsO19rEvXwG/PTwMffkWmVaky5X+mgqgm8ZngyFeF575RlT9+johdh LudIcXKJMWDpxoNdtOKBZU7I7cGK3YLmRMKFhhT6l2KHYd12eriKZoOUaMaXEdTc7q6s ISSfFt3qO2cRHKkQ1d4Qq7ov4ofX3FX3+s7BJvCsFOfaNRfEmxEryi3F8gdmBKluY48F HxWfAl8kzBtqR4s3E7kqIvMgAwcMCXV+K55wtPWJu2/hUpSWHofs6zR0yMBNEnM9kytW Q35Q== X-Gm-Message-State: AOJu0YyiN8setP4E0VhzAKR9VTrVVmaU5lyihQw7JNml6hdvrgnkjLMs m5lYvUwjcEOe+OAXDU5EgIR/2+i2FQGhWYpaKOKnhvhP X-Received: by 2002:a2e:b809:0:b0:2c8:38b2:2c33 with SMTP id u9-20020a2eb809000000b002c838b22c33mr3086501ljo.3.1700449032436; Sun, 19 Nov 2023 18:57:12 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Olga Kornievskaia Date: Sun, 19 Nov 2023 16:57:00 -1000 Message-ID: Subject: Re: TCP_KEEPALIVE for Linux NFS client? To: Cedric Blancher Cc: Linux NFS Mailing List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Sun, 19 Nov 2023 18:57:26 -0800 (PST) Hi Ced, Why do you think it doesn't use it? Have you looked at a network trace of an idle connection? I seem to recall seeing keep-alive being used. On Fri, Nov 17, 2023 at 8:02=E2=80=AFPM Cedric Blancher wrote: > > Good morning! > > Why does the Linux NFS client not use TCP_KEEPALIVE for its TCP > connections? What are the pro and cons of using that for NFS TCP > connections? > > Ced > -- > Cedric Blancher > [https://plus.google.com/u/0/+CedricBlancher/] > Institute Pasteur