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 8E7C810E85 for ; Fri, 25 Oct 2013 00:56:03 +0000 (UTC) Received: (qmail 31339 invoked by uid 500); 25 Oct 2013 00:56:03 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 31321 invoked by uid 500); 25 Oct 2013 00:56:03 -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 31313 invoked by uid 99); 25 Oct 2013 00:56:03 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 25 Oct 2013 00:56:03 +0000 Date: Fri, 25 Oct 2013 00:56:03 +0000 (UTC) From: "Ken Krugler (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (CASSANDRA-5201) Cassandra/Hadoop does not support current Hadoop releases 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-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13804877#comment-13804877 ] Ken Krugler commented on CASSANDRA-5201: ---------------------------------------- Re Hadoop 1.x vs. Hadoop 2.x - most companies I see are using a 1.x version of Hadoop. Usage of Hadoop 2.x is ramping up fast, but I'm guessing it will be at least another year (probably more) before you'd want to start thinking about phasing out support for Hadoop 1.x > Cassandra/Hadoop does not support current Hadoop releases > --------------------------------------------------------- > > Key: CASSANDRA-5201 > URL: https://issues.apache.org/jira/browse/CASSANDRA-5201 > Project: Cassandra > Issue Type: Bug > Components: Hadoop > Affects Versions: 1.2.0 > Reporter: Brian Jeltema > Assignee: Dave Brosius > Attachments: 5201_a.txt > > > Using Hadoop 0.22.0 with Cassandra results in the stack trace below. > It appears that version 0.21+ changed org.apache.hadoop.mapreduce.JobContext > from a class to an interface. > Exception in thread "main" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected > at org.apache.cassandra.hadoop.ColumnFamilyInputFormat.getSplits(ColumnFamilyInputFormat.java:103) > at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:445) > at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:462) > at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:357) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1045) > at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1042) > at java.security.AccessController.doPrivileged(Native Method) > at javax.security.auth.Subject.doAs(Subject.java:415) > at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1153) > at org.apache.hadoop.mapreduce.Job.submit(Job.java:1042) > at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1062) > at MyHadoopApp.run(MyHadoopApp.java:163) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69) > at MyHadoopApp.main(MyHadoopApp.java:82) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:192) -- This message was sent by Atlassian JIRA (v6.1#6144)