Return-Path: X-Original-To: apmail-hadoop-user-archive@minotaur.apache.org Delivered-To: apmail-hadoop-user-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 3C7F9DB5A for ; Thu, 30 Aug 2012 23:39:02 +0000 (UTC) Received: (qmail 7491 invoked by uid 500); 30 Aug 2012 23:38:57 -0000 Delivered-To: apmail-hadoop-user-archive@hadoop.apache.org Received: (qmail 7351 invoked by uid 500); 30 Aug 2012 23:38:57 -0000 Mailing-List: contact user-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hadoop.apache.org Delivered-To: mailing list user@hadoop.apache.org Received: (qmail 7341 invoked by uid 99); 30 Aug 2012 23:38:57 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Aug 2012 23:38:57 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=FSL_RCVD_USER,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of vasco.visser@gmail.com designates 209.85.210.176 as permitted sender) Received: from [209.85.210.176] (HELO mail-iy0-f176.google.com) (209.85.210.176) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 30 Aug 2012 23:38:49 +0000 Received: by iagt4 with SMTP id t4so4818759iag.35 for ; Thu, 30 Aug 2012 16:38:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=PCeI0bvH4E+8t9fkLozeNBB6xRGs9x5gRJwkVj/c72E=; b=PwOU7e5Kzdst6mwjzSmKpH/tBK+jsmo+a9BmExf92VdG1xADRuxMJBqzM7dGZvlTNn +toruRsjkkZmhZCEJuBJ30IZ0XGZNbpMWaZD4wl4Ye4kzk/xWP/OP6hI+LWz9GfxRF5V KxHdw0VQbkqJpMuAvQNgJkch1akHiYqRUX/QACADj41a/khrXNzVh1OPuHiVvyoyqLcs kMM2JHk3fjDyTOgtnXi68/yFOBVB0Ijh++VGpH0ygTxK25/cFrmk7t1io3yUX9y+uTMs n5UQml/Jr5CV3kCae8rFvVAVz82w+zsv9SV4i2nbQ0nbZal13TmLUjFQ1wK4woJQQQjX PJrQ== MIME-Version: 1.0 Received: by 10.50.154.225 with SMTP id vr1mr81133igb.70.1346369909028; Thu, 30 Aug 2012 16:38:29 -0700 (PDT) Received: by 10.64.96.165 with HTTP; Thu, 30 Aug 2012 16:38:28 -0700 (PDT) In-Reply-To: References: <24F38861-6C09-4EDB-82FE-F2CD2B0390C4@hortonworks.com> Date: Fri, 31 Aug 2012 01:38:28 +0200 Message-ID: Subject: Re: Questions with regard to scheduling of map and reduce tasks From: Vasco Visser To: user@hadoop.apache.org Content-Type: text/plain; charset=ISO-8859-1 FYI: the starvation issue is a known bug (https://issues.apache.org/jira/browse/MAPREDUCE-4299). Still interested in answers to the questions regarding the scheduling though. If anyone can share some info on that it is much appreciated. regards, Vasco