Return-Path: X-Original-To: apmail-hive-dev-archive@www.apache.org Delivered-To: apmail-hive-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id ECDE09514 for ; Thu, 16 May 2013 01:10:15 +0000 (UTC) Received: (qmail 27998 invoked by uid 500); 16 May 2013 01:10:14 -0000 Delivered-To: apmail-hive-dev-archive@hive.apache.org Received: (qmail 27905 invoked by uid 500); 16 May 2013 01:10:14 -0000 Mailing-List: contact dev-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list dev@hive.apache.org Received: (qmail 27797 invoked by uid 500); 16 May 2013 01:10:14 -0000 Delivered-To: apmail-hadoop-hive-dev@hadoop.apache.org Received: (qmail 27763 invoked by uid 99); 16 May 2013 01:10:14 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 16 May 2013 01:10:14 +0000 Date: Thu, 16 May 2013 01:10:14 +0000 (UTC) From: "Gunther Hagleitner (JIRA)" To: hive-dev@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-4518) Counter Strike: Operation Operator MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-4518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Gunther Hagleitner updated HIVE-4518: ------------------------------------- Attachment: (was: HIVE-4318.3.patch) > Counter Strike: Operation Operator > ---------------------------------- > > Key: HIVE-4518 > URL: https://issues.apache.org/jira/browse/HIVE-4518 > Project: Hive > Issue Type: Bug > Reporter: Gunther Hagleitner > Assignee: Gunther Hagleitner > Attachments: HIVE-4518.1.patch, HIVE-4518.2.patch, HIVE-4518.3.patch > > > Queries of the form: > from foo > insert overwrite table bar partition (p) select ... > insert overwrite table bar partition (p) select ... > insert overwrite table bar partition (p) select ... > Generate a huge amount of counters. The reason is that task.progress is turned on for dynamic partitioning queries. > The counters not only make queries slower than necessary (up to 50%) you will also eventually run out. That's because we're wrapping them in enum values to comply with hadoop 0.17. > The real reason we turn task.progress on is that we need CREATED_FILES and FATAL counters to ensure dynamic partitioning queries don't go haywire. > The counters have counter-intuitive names like C1 through C1000 and don't seem really useful by themselves. > With hadoop 20+ you don't need to wrap the counters anymore, each operator can simply create and increment counters. That should simplify the code a lot. -- 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