Return-Path: X-Original-To: apmail-tez-issues-archive@minotaur.apache.org Delivered-To: apmail-tez-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id E070F10E75 for ; Mon, 19 Aug 2013 22:58:12 +0000 (UTC) Received: (qmail 43874 invoked by uid 500); 19 Aug 2013 22:58:12 -0000 Delivered-To: apmail-tez-issues-archive@tez.apache.org Received: (qmail 43844 invoked by uid 500); 19 Aug 2013 22:58:12 -0000 Mailing-List: contact issues-help@tez.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@tez.incubator.apache.org Delivered-To: mailing list issues@tez.incubator.apache.org Received: (qmail 43837 invoked by uid 99); 19 Aug 2013 22:58:12 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Aug 2013 22:58:12 +0000 X-ASF-Spam-Status: No, hits=-2002.8 required=5.0 tests=ALL_TRUSTED,RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.3] (HELO mail.apache.org) (140.211.11.3) by apache.org (qpsmtpd/0.29) with SMTP; Mon, 19 Aug 2013 22:58:10 +0000 Received: (qmail 42202 invoked by uid 99); 19 Aug 2013 22:57:48 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Aug 2013 22:57:48 +0000 Date: Mon, 19 Aug 2013 22:57:48 +0000 (UTC) From: "Siddharth Seth (JIRA)" To: issues@tez.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (TEZ-376) Reduce Processor can parallelize I/O/Processor initialization MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 X-Virus-Checked: Checked by ClamAV on apache.org [ https://issues.apache.org/jira/browse/TEZ-376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Siddharth Seth updated TEZ-376: ------------------------------- Status: Open (was: Patch Available) > Reduce Processor can parallelize I/O/Processor initialization > ------------------------------------------------------------- > > Key: TEZ-376 > URL: https://issues.apache.org/jira/browse/TEZ-376 > Project: Apache Tez > Issue Type: Bug > Reporter: Siddharth Seth > Assignee: Siddharth Seth > Labels: TEZ-0.2.0 > Attachments: TEZ-376.2.txt, TEZ-376.txt > > > Reported by [~gopalv]. Reduce initialization can take a fair amount of time after shuffle is complete - depending on how expensive the Reduce initialization is. > Quote from Gopal's investigation > 1.6 seconds is spent in ReflectionUtils.newInstance() -> ReflectionUtils.setConf() of which 1.2 seconds is Utilities.getMapRedWork(). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira