From users-return-7569-archive-asf-public=cust-asf.ponee.io@trafficserver.apache.org Thu Feb 28 03:13:34 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 64B23180608 for ; Thu, 28 Feb 2019 04:13:34 +0100 (CET) Received: (qmail 43647 invoked by uid 500); 28 Feb 2019 03:13:32 -0000 Mailing-List: contact users-help@trafficserver.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@trafficserver.apache.org Delivered-To: mailing list users@trafficserver.apache.org Received: (qmail 43637 invoked by uid 99); 28 Feb 2019 03:13:32 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 28 Feb 2019 03:13:32 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id 20607181BF4 for ; Thu, 28 Feb 2019 03:13:32 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -0.202 X-Spam-Level: X-Spam-Status: No, score=-0.202 tagged_above=-999 required=6.31 tests=[DKIMWL_WL_MED=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd3-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id eOZ5BOMjnB8d for ; Thu, 28 Feb 2019 03:13:31 +0000 (UTC) Received: from mail-it1-f173.google.com (mail-it1-f173.google.com [209.85.166.173]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTPS id 3E19E6249E for ; Thu, 28 Feb 2019 03:13:30 +0000 (UTC) Received: by mail-it1-f173.google.com with SMTP id g17so4599423ita.2 for ; Wed, 27 Feb 2019 19:13:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :content-transfer-encoding; bh=3lF9NI875oGQ3ezy3Di7xVgu8nA1H78D3JdOhye0VD4=; b=mlhnAhBXU3wf5Q5lCo89SuNFdLHtDpt7pYRhYM9ALfNKgbcgEcQtUW35eivjji4Gf8 wjEdVqLPPfnxeJ2KMTQMqOuwCT13CB3q69T1FBFOtmVxgMaugcuCNeeO70+0HZnrM72p dBDswztTbYyPOIL5+TLX0msq3sarSepNULzZFCjWa5MgL0PuYA5bwGreGEuqXSL4mhM0 VyDofUK3M0e1HX43rOJ1NIFAO3Y1MrPz19tjgFdrm3urnkoePMKTIHKnb65g0oU95nlP jyjeeBOxW2EvOLqH4tdF1OKr01LcffazlVl6t8UbQ9hZZ0uE4I2kcFxYJ2ZxmAiDHKq9 VVNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:content-transfer-encoding; bh=3lF9NI875oGQ3ezy3Di7xVgu8nA1H78D3JdOhye0VD4=; b=oweecHRABhWK31e5WiBVXWgzu8QJ6A8vJ+Tb4ZrPDMmVd/haDd+5LUCGEY+JN8oAfE ls6aT9XDlaTKLUw5DClF+m0MgMml7eHMR452x+EUwHvKEt9gKDbogTNTQ0aWbm+j/kUS DfgtSMw2ENiCeTEaeELAHsPZHHRxzdOwGosP55KtU0u5bgxm21UyQlLltJza4SBTkwen UZJTOK03x89H8ry/NK+0pBA5uIML1iiQpoycMfbyQq+wV0hHsYR8kXDxceMi/0Yi4jpT 11gSl/aDMNLSFPbZir8zTst/mu2wVLTmOruGonYlMvq1Ws5hhWt5rO41x2LqqqiPJpi0 s8Sw== X-Gm-Message-State: AHQUAubZpp56Fgq7SJ85A24dNth6/pE46Dza+Y1wMfQP0Kxeu8Ed5fpM Arb/W3YfeBLbTtdJECro1vuRoQl5OiShDF1PB6NkDg== X-Google-Smtp-Source: APXvYqwJOdmNGotu3Jtlk2PHcLbQqPMakyETcAD/tapOQR447dxBcFjB837DPhO81kx5kUlrN0s46H8PqXViJGz3xdM= X-Received: by 2002:a24:1494:: with SMTP id 142mr1625561itg.95.1551323608794; Wed, 27 Feb 2019 19:13:28 -0800 (PST) MIME-Version: 1.0 References: <19BE70BE-F3E7-4F86-97F5-7FF870CF42A4@gmail.com> In-Reply-To: <19BE70BE-F3E7-4F86-97F5-7FF870CF42A4@gmail.com> From: Shu Kit Chan Date: Wed, 27 Feb 2019 19:13:17 -0800 Message-ID: Subject: Re: How do I debug transaction stall To: users@trafficserver.apache.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable By "stall", you mean 1) ATS stops accepting requests altogether ? or 2) One particular request is stalled and the other requests are fine? If it is the first, I will use gdb to look at the process and see if there is anything locked or waiting. If it is the second, I will log the milestones in access log and see if it can tell where it is stopped. I will also probably turn on debug messages and see if there's anything going on as well. Kit On Wed, Feb 27, 2019 at 7:08 PM Jason Yang wro= te: > > Hi all, > I have setup a trafficserver and somehow every few transactions, it will = stall, what could be wrong and what=E2=80=99s the best way to debug this? T= hank you! > > > Jason