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 C78BE172E1 for ; Mon, 11 May 2015 15:48:01 +0000 (UTC) Received: (qmail 79951 invoked by uid 500); 11 May 2015 15:47:59 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 79875 invoked by uid 500); 11 May 2015 15:47:59 -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 79864 invoked by uid 99); 11 May 2015 15:47:59 -0000 Received: from Unknown (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 11 May 2015 15:47:59 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id EC829C20B6 for ; Mon, 11 May 2015 15:47:58 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2.989 X-Spam-Level: ** X-Spam-Status: No, score=2.989 tagged_above=-999 required=6.31 tests=[HTML_MESSAGE=3, SPF_HELO_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=disabled Received: from mx1-eu-west.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id ACgELq4KYX1s for ; Mon, 11 May 2015 15:47:49 +0000 (UTC) Received: from piper.jhuapl.edu (piper.jhuapl.edu [128.244.251.37]) by mx1-eu-west.apache.org (ASF Mail Server at mx1-eu-west.apache.org) with ESMTPS id EF0AC24CE5 for ; Mon, 11 May 2015 15:47:48 +0000 (UTC) Received: from APLEX06.dom1.jhuapl.edu (unknown [128.244.198.140]) by piper.jhuapl.edu with smtp (TLS: TLSv1/SSLv3,256bits,AES256-SHA) id 2a7e_c200_f3e01719_2e77_41fb_9dcd_99e4580b20b2; Mon, 11 May 2015 11:45:45 -0400 X-CrossPremisesHeadersFilteredBySendConnector: APLEX06.dom1.jhuapl.edu Received: from aplex05.dom1.jhuapl.edu (128.244.198.135) by APLEX06.dom1.jhuapl.edu (128.244.198.140) with Microsoft SMTP Server (TLS) id 15.0.1076.9; Mon, 11 May 2015 11:45:45 -0400 Received: from aplex05.dom1.jhuapl.edu ([fe80::e8c7:958:8919:23c5]) by aplex05.dom1.jhuapl.edu ([fe80::e8c7:958:8919:23c5%17]) with mapi id 15.00.1076.000; Mon, 11 May 2015 11:45:45 -0400 From: "Webb, Ryan L." To: "user@hbase.apache.org" Subject: Mapping Over Cells Thread-Topic: Mapping Over Cells Thread-Index: AdCL/JgrGFqI+7ZESuC/8buEMnQE0QABNfww Date: Mon, 11 May 2015 15:45:44 +0000 Message-ID: <28198131aaa84880b0c5738ac111d8ec@aplex05.dom1.jhuapl.edu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [128.244.103.238] Content-Type: multipart/alternative; boundary="_000_28198131aaa84880b0c5738ac111d8ecaplex05dom1jhuapledu_" MIME-Version: 1.0 X-OrganizationHeadersPreserved: APLEX06.dom1.jhuapl.edu --_000_28198131aaa84880b0c5738ac111d8ecaplex05dom1jhuapledu_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello, We have a table in HBase that has very large rows and it goes OOM when the = table mapper attempts to read the entire row into a result. We would like to be able to map over each Cell in the table as a solution a= nd it is what we are doing in the map anyway. Is this possible? Like the default behavior for Accumulo? We looked at the settings on Scan and didn't really see anything and the so= urce code of Result looks like it wraps an array of cells so the data is al= ready loaded at that point. We are using HBase .98.1 and Hadoop 2 APIs Thanks Ryan Webb PS - Sorry if this is a duplicate, I sent the first one before subscribing = so I don't know what the policy is with that. --_000_28198131aaa84880b0c5738ac111d8ecaplex05dom1jhuapledu_--