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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-7637) hbase-hadoop1-compat conflicts with -Dhadoop.profile=2.0
Date Mon, 21 Jan 2013 18:04:12 GMT
nkeywal created HBASE-7637:
------------------------------

             Summary: 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


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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