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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7637) hbase-hadoop1-compat conflicts with -Dhadoop.profile=2.0
Date Mon, 21 Jan 2013 20:40:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559078#comment-13559078
] 

Elliott Clark commented on HBASE-7637:
--------------------------------------

Do we even need that add_maven_main_classes_to_classpath any more ?  Seems like cached_classpath
contained all of the jars that I would expect.
                
> hbase-hadoop1-compat conflicts with -Dhadoop.profile=2.0
> --------------------------------------------------------
>
>                 Key: HBASE-7637
>                 URL: https://issues.apache.org/jira/browse/HBASE-7637
>             Project: HBase
>          Issue Type: Bug
>          Components: build
>    Affects Versions: 0.96.0
>            Reporter: nkeywal
>            Priority: Critical
>             Fix For: 0.96.0
>
>
> I'm unclear on the root cause / fix. Here is the scenario:
> {noformat}
> mvn clean package install -Dhadoop.profile=2.0 -DskipTests
> bin/start-hbase.sh
> {noformat}
> fails with
> {noformat}
> Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.metrics2.lib.MetricMutable
>         at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> {noformat}
> doing 
> {noformat}
> rm -rf hbase-hadoop1-compat/target/
> {noformat}
> makes it work. 
> In the pom.xml, we never reference hadoop2-compat. But doing so does not help: hadoop1-compat
is compiled and takes precedence over hadoop2...

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