Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 56AB5D88E for ; Sat, 22 Dec 2012 03:59:15 +0000 (UTC) Received: (qmail 7263 invoked by uid 500); 22 Dec 2012 03:59:15 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 7072 invoked by uid 500); 22 Dec 2012 03:59:14 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 7026 invoked by uid 99); 22 Dec 2012 03:59:13 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 22 Dec 2012 03:59:13 +0000 Date: Sat, 22 Dec 2012 03:59:12 +0000 (UTC) From: "tu nguyen khac (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CASSANDRA-5085) Hadoop map reduce job work wrong with big wide rows 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/CASSANDRA-5085?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13538659#comment-13538659 ] tu nguyen khac commented on CASSANDRA-5085: ------------------------------------------- Can I update only Cassandra lib for hadoop by changing hadoop-env.sh refer to new Casaandra lib ?? i don't want to change my production enviromment ?? Thanks for your support :) > Hadoop map reduce job work wrong with big wide rows > ---------------------------------------------------- > > Key: CASSANDRA-5085 > URL: https://issues.apache.org/jira/browse/CASSANDRA-5085 > Project: Cassandra > Issue Type: Bug > Components: Hadoop > Affects Versions: 1.1.1 > Environment: Centos 6.0, 7 node cluster (24gb ram, 16 core) , replication factor=2 > Reporter: tu nguyen khac > > I have 7 nodes cassandra (1.1.1) and hadoop (1.03) cluster ( tasktracker install on every cassandra node). > and my column family use wide row pattern. 1 row contains about 200k columns (max about 300k). > My problem is that: when i use Hadoop to run analytic jobs ( count numbers of occurrence of a something in data) the result i received is wrong ( result is too lower as I expected in test records) > there 's one strange when we monitoring on job tracker is map progress task indicate wrong ( in my image below ) , And number of "Map input records" when I rerun job ( same data) is not same. -- 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