Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id F2F50DEBC for ; Sat, 2 Feb 2013 01:49:13 +0000 (UTC) Received: (qmail 64128 invoked by uid 500); 2 Feb 2013 01:49:13 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 64091 invoked by uid 500); 2 Feb 2013 01:49:13 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 64082 invoked by uid 99); 2 Feb 2013 01:49:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 02 Feb 2013 01:49:13 +0000 Date: Sat, 2 Feb 2013 01:49:13 +0000 (UTC) From: "Lars Hofhansl (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (HBASE-3996) Support multiple tables and scanners as input to the mapper in map/reduce jobs 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/HBASE-3996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569365#comment-13569365 ] Lars Hofhansl edited comment on HBASE-3996 at 2/2/13 1:47 AM: -------------------------------------------------------------- [~saint.ack@gmail.com], you're on board with that? was (Author: lhofhansl): [~saint.ack@gmail.com], you're board with that? > Support multiple tables and scanners as input to the mapper in map/reduce jobs > ------------------------------------------------------------------------------ > > Key: HBASE-3996 > URL: https://issues.apache.org/jira/browse/HBASE-3996 > Project: HBase > Issue Type: Improvement > Components: mapreduce > Reporter: Eran Kutner > Assignee: Bryan Baugher > Priority: Critical > Fix For: 0.96.0, 0.94.5 > > Attachments: 3996-v10.txt, 3996-v11.txt, 3996-v12.txt, 3996-v13.txt, 3996-v14.txt, 3996-v2.txt, 3996-v3.txt, 3996-v4.txt, 3996-v5.txt, 3996-v6.txt, 3996-v7.txt, 3996-v8.txt, 3996-v9.txt, HBase-3996.patch > > > It seems that in many cases feeding data from multiple tables or multiple scanners on a single table can save a lot of time when running map/reduce jobs. > I propose a new MultiTableInputFormat class that would allow doing this. -- 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