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 2FB8110600 for ; Tue, 24 Sep 2013 05:22:35 +0000 (UTC) Received: (qmail 79874 invoked by uid 500); 24 Sep 2013 05:22:34 -0000 Delivered-To: apmail-tajo-dev-archive@tajo.apache.org Received: (qmail 79845 invoked by uid 500); 24 Sep 2013 05:22:34 -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 79836 invoked by uid 99); 24 Sep 2013 05:22:33 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Sep 2013 05:22:33 +0000 X-ASF-Spam-Status: No, hits=-2002.3 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, 24 Sep 2013 05:22:30 +0000 Received: (qmail 79403 invoked by uid 99); 24 Sep 2013 05:22:07 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Sep 2013 05:22:07 +0000 Date: Tue, 24 Sep 2013 05:22:07 +0000 (UTC) From: "Hyunsik Choi (JIRA)" To: dev@tajo.incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (TAJO-201) Physical execution plan should be reused for same task 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-201: --------------------------------- Summary: Physical execution plan should be reused for same task Key: TAJO-201 URL: https://issues.apache.org/jira/browse/TAJO-201 Project: Tajo Issue Type: Improvement Components: worker Reporter: Hyunsik Choi Fix For: 0.3-incubating In worker, one physical execution plan is generated for each task. If we reuse this, we can have more optimization opportunities. For example, a broadcast table can be shared among all tasks executed in the same worker. Also, it's initialization cost and deserialization of json can be eliminated. -- 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