Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id ED3C7C93D for ; Mon, 6 Aug 2012 11:32:08 +0000 (UTC) Received: (qmail 47352 invoked by uid 500); 6 Aug 2012 11:32:07 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 46832 invoked by uid 500); 6 Aug 2012 11:32:03 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 46798 invoked by uid 99); 6 Aug 2012 11:32:02 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 06 Aug 2012 11:32:02 +0000 X-ASF-Spam-Status: No, hits=3.2 required=5.0 tests=FSL_RCVD_USER,HTML_MESSAGE,MSGID_MULTIPLE_AT,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of amlan.roy@cleartrip.com designates 121.241.247.20 as permitted sender) Received: from [121.241.247.20] (HELO mx1.securemx.in) (121.241.247.20) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 06 Aug 2012 11:31:56 +0000 DKIM-Signature: v=1; a=rsa-sha256; d=cmc.smxemail.com; s=alpha; c=relaxed/relaxed; q=dns/txt; i=@cmc.smxemail.com; t=1344252693; h=From:Sender:Reply-To:Subject:Date:Message-ID:To:Cc; bh=sXMWwuS1EPHllWTS0aQs35o5zT8XlHAIMD2rdV0YOug=; b=AQkE7szBqwYLlFB+Uww7Af962Ohwcv9VW8njDwsjzvihGQxleIosx5Yl+Du5r+K2 JZZwcQH2sobdeKPsQ5bnLRO9PDqWfhxydBAM7m+U1g1rlnmklOnf+dXVfpxQNbN9 nNjupAY4j9CaqTvy5JqqTRxHhzsSJBVUkz+Mn+cvwZz4; Received: from hermes.cleartrip.com ([115.111.79.46]) by omr.securemx.in with ESMTP (using TLSv1 with cipher AES256-SHA (256/256 bits)) id 501FAB14-47581D63@mta4103.omr; Mon, 06 Aug 2012 11:31:32 +0000 Received: (qmail 7535 invoked from network); 6 Aug 2012 11:31:23 -0000 Received: from unknown (HELO IT1344Amlan) (amlan.roy@cleartrip.com@[172.16.45.163]) (envelope-sender ) by hermes.cleartrip.com (qmail-ldap-1.03) with SMTP for ; 6 Aug 2012 11:31:23 -0000 From: "Amlan Roy" To: Subject: HBase MapReduce - Using mutiple tables as source Date: Mon, 6 Aug 2012 17:01:28 +0530 Message-ID: <007401cd73c7$054d98b0$0fe8ca10$@roy@cleartrip.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0075_01CD73F5.1F05D4B0" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac1zxwOqQg8rv97dTcGVEWB3dQ4aTw== Content-Language: en-us x-cr-hashedpuzzle: CxP1 DTl4 DmxC D4vb D59N FC9E FJYj HWvV ITb3 Imxq JjiM Jyng KHgA KhU1 KyAH LAu6;1;dQBzAGUAcgBAAGgAYgBhAHMAZQAuAGEAcABhAGMAaABlAC4AbwByAGcA;Sosha1_v1;7;{D0804704-63E2-4BF0-8A23-59FFD689C708};YQBtAGwAYQBuAC4AcgBvAHkAQABjAGwAZQBhAHIAdAByAGkAcAAuAGMAbwBtAA==;Mon, 06 Aug 2012 11:31:26 GMT;SABCAGEAcwBlACAATQBhAHAAUgBlAGQAdQBjAGUAIAAtACAAVQBzAGkAbgBnACAAbQB1AHQAaQBwAGwAZQAgAHQAYQBiAGwAZQBzACAAYQBzACAAcwBvAHUAcgBjAGUA x-cr-puzzleid: {D0804704-63E2-4BF0-8A23-59FFD689C708} X-Virus-Checked: Checked by ClamAV on apache.org ------=_NextPart_000_0075_01CD73F5.1F05D4B0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi, While writing a MapReduce job for HBase, can I use multiple tables as input? I think TableMapReduceUtil.initTableMapperJob() takes a single table as parameter. For my requirement, I want to specify multiple tables and scan instances. I read about MultiTableInputCollection in the document https://issues.apache.org/jira/browse/HBASE-3996. But I don't find it in HBase-0.92.0. Regards, Amlan ------=_NextPart_000_0075_01CD73F5.1F05D4B0--