[jira] [Created] (ACCUMULO-2127) example accumulo-site.xmls put Hadoop 2 jars ahead of Accumulo jars on classpath

["Ben Popp (JIRA)" <ji...@apache.org>]

Ben Popp created ACCUMULO-2127:
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             Summary: example accumulo-site.xmls put Hadoop 2 jars ahead of Accumulo jars on classpath
                 Key: ACCUMULO-2127
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2127
             Project: Accumulo
          Issue Type: Bug
    Affects Versions: 1.6.0
            Reporter: Ben Popp
            Priority: Minor
             Fix For: 1.6.0


conf/examples/1GB/native-standalone/accumulo-site.xml currently reads 

{noformat}
  <property>
    <name>general.classpaths</name>
    <value>
      <!-- Comment the following for hadoop-1.2 -->
      $HADOOP_PREFIX/share/hadoop/common/.*.jar,
      $HADOOP_PREFIX/share/hadoop/common/lib/.*.jar,
      $HADOOP_PREFIX/share/hadoop/hdfs/.*.jar,
      $HADOOP_PREFIX/share/hadoop/mapreduce/.*.jar,
      $HADOOP_PREFIX/share/hadoop/yarn/.*.jar,
      /usr/lib/hadoop/.*.jar,
      /usr/lib/hadoop/lib/.*.jar,
      /usr/lib/hadoop-hdfs/.*.jar,
      /usr/lib/hadoop-mapreduce/.*.jar,
      /usr/lib/hadoop-yarn/.*.jar,

      $ACCUMULO_HOME/lib/accumulo-server.jar,
      $ACCUMULO_HOME/lib/accumulo-core.jar,
      $ACCUMULO_HOME/lib/accumulo-start.jar,
      $ACCUMULO_HOME/lib/accumulo-fate.jar,
      $ACCUMULO_HOME/lib/accumulo-proxy.jar,
      $ACCUMULO_HOME/lib/[^.].*.jar,
      $ZOOKEEPER_HOME/zookeeper[^.].*.jar,
      $HADOOP_CONF_DIR,
      $HADOOP_PREFIX/[^.].*.jar,
      $HADOOP_PREFIX/lib/[^.].*.jar,
    </value>
    <description>Classpaths that accumulo checks for updates and class files.</description>
  </property>
{noformat}

this has the unusual property of sticking Hadoop jars before Accumulo jars on the classpath when using Hadoop 2.  

we discovered this issue when one of our custom iterators loaded up the wrong version of guava (Hadoop 2.2.0's guava 11.0.2 instead of Accumulo 1.6.0-SNAPSHOT's guava 14) due to this ordering.  



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