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From "Rahul Sharma (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-4) Create profiles for Crunch builds based on Hadoop 1.0 and Hadoop 2.0
Date Thu, 26 Jul 2012 05:52:33 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-4?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13422912#comment-13422912
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Rahul Sharma commented on CRUNCH-4:
-----------------------------------

The hadoop 1.0.3 profile prints a few stack traces like ( output from WordCountHBaseIT test)
:

2940 [main] WARN  org.apache.hadoop.metrics2.util.MBeans  - Hadoop:service=DataNode,name=MetricsSystem,sub=Control
javax.management.InstanceAlreadyExistsException: MXBean already registered with name Hadoop:service=NameNode,name=MetricsSystem,sub=Control
	at com.sun.jmx.mbeanserver.MXBeanLookup.addReference(MXBeanLookup.java:120)
	at com.sun.jmx.mbeanserver.MXBeanSupport.register(MXBeanSupport.java:143)
	at com.sun.jmx.mbeanserver.MBeanSupport.preRegister2(MBeanSupport.java:183)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:941)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:917)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:312)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:482)
	

WARN  org.apache.hadoop.metrics2.util.MBeans  - Hadoop:service=DataNode,name=DataNodeInfo
javax.management.InstanceNotFoundException: Hadoop:service=DataNode,name=DataNodeInfo
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getMBean(DefaultMBeanServerInterceptor.java:1094)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.exclusiveUnregisterMBean(DefaultMBeanServerInterceptor.java:415)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.unregisterMBean(DefaultMBeanServerInterceptor.java:403)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.unregisterMBean(JmxMBeanServer.java:506)

But these all are warning and are listed in HBASE-4709 issue, which is yet to be fixed. I
think in future we need to spend some time in fixing them.
                
> Create profiles for Crunch builds based on Hadoop 1.0 and Hadoop 2.0
> --------------------------------------------------------------------
>
>                 Key: CRUNCH-4
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-4
>             Project: Crunch
>          Issue Type: Task
>          Components: Core
>            Reporter: Josh Wills
>            Assignee: Rahul Sharma
>              Labels: maven, newbie
>         Attachments: 0001-CRUNCH-4-Profiles-for-hadoop-0.20-and-2.0-versions.patch, 0001-Created-profiles-for-CDH3-hbase-.90.6-and-hadoop2-hb.patch,
CRUNCH-4-Profiles-for-hadoop-verions.patch
>
>
> We need to create two Maven build profiles for Crunch, one that depends on Hadoop 1.0
(probably 1.0.3 for Hadoop and 0.90.5 for HBase) and Hadoop 2.0 (2.0.0-alpha for Hadoop and
a stable 0.92.x for HBase.)
> Reference:
> http://maven.apache.org/guides/introduction/introduction-to-profiles.html

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