Return-Path: X-Original-To: apmail-tajo-dev-archive@minotaur.apache.org Delivered-To: apmail-tajo-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 16D7CF212 for ; Tue, 1 Oct 2013 13:08:57 +0000 (UTC) Received: (qmail 10040 invoked by uid 500); 1 Oct 2013 13:08:55 -0000 Delivered-To: apmail-tajo-dev-archive@tajo.apache.org Received: (qmail 9994 invoked by uid 500); 1 Oct 2013 13:08:54 -0000 Mailing-List: contact dev-help@tajo.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@tajo.incubator.apache.org Delivered-To: mailing list dev@tajo.incubator.apache.org Received: (qmail 9980 invoked by uid 99); 1 Oct 2013 13:08:53 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 01 Oct 2013 13:08:53 +0000 X-ASF-Spam-Status: No, hits=-2000.7 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; Tue, 01 Oct 2013 13:08:44 +0000 Received: (qmail 8898 invoked by uid 99); 1 Oct 2013 13:08:24 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 01 Oct 2013 13:08:24 +0000 Date: Tue, 1 Oct 2013 13:08:23 +0000 (UTC) From: "Hyunsik Choi (JIRA)" To: dev@tajo.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (TAJO-222) Eliminate local data transmission during repartition phases 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 Hyunsik Choi created TAJO-222: --------------------------------- Summary: Eliminate local data transmission during repartition phases Key: TAJO-222 URL: https://issues.apache.org/jira/browse/TAJO-222 Project: Tajo Issue Type: Improvement Components: repartitioning Reporter: Hyunsik Choi During a repartition phase, each worker pulls intermediate of completed tasks of one or more child execution blocks. However, a worker pulls the intermediate data completed at the same worker via HTTP. This causes unnecessary read/write overheads on disk. We should eliminate this overhead. -- This message was sent by Atlassian JIRA (v6.1#6144)