Return-Path: X-Original-To: apmail-incubator-crunch-dev-archive@minotaur.apache.org Delivered-To: apmail-incubator-crunch-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 D737CE3FF for ; Wed, 6 Feb 2013 10:15:18 +0000 (UTC) Received: (qmail 34432 invoked by uid 500); 6 Feb 2013 10:15:18 -0000 Delivered-To: apmail-incubator-crunch-dev-archive@incubator.apache.org Received: (qmail 33531 invoked by uid 500); 6 Feb 2013 10:15:15 -0000 Mailing-List: contact crunch-dev-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: crunch-dev@incubator.apache.org Delivered-To: mailing list crunch-dev@incubator.apache.org Received: (qmail 33460 invoked by uid 99); 6 Feb 2013 10:15:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 06 Feb 2013 10:15:13 +0000 Date: Wed, 6 Feb 2013 10:15:13 +0000 (UTC) From: "Dave Beech (JIRA)" To: crunch-dev@incubator.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (CRUNCH-162) Add utility function for merging output by identity reduce MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Dave Beech created CRUNCH-162: --------------------------------- Summary: Add utility function for merging output by identity reduce Key: CRUNCH-162 URL: https://issues.apache.org/jira/browse/CRUNCH-162 Project: Crunch Issue Type: Improvement Components: MapReduce Patterns Affects Versions: 0.4.0 Reporter: Dave Beech Priority: Minor Something I find myself doing reasonably often in mapreduce is to use the reduce step as nothing more than a means to merge data into larger files (using the identity reducer). There doesn't appear to be a neat way to do this with Crunch at the moment. Ref: http://mail-archives.apache.org/mod_mbox/incubator-crunch-user/201302.mbox/%3CCAFZSZPsXRxWT45c9w4ef7Ruij2exE4HP2CDNMjd%2BVc%3D9RWX-Jw%40mail.gmail.com%3E -- 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