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HDP on Linux – Installation Forum

Error during 1.2.0 Ambari install: Log4JLogger' cannot be found or is not useabl

  • #15594
    Trang Nguyen

    I’m trying to upgrade to HDP 1.2.0 from a 1.1.1 and am running into this error on one of the nodes :

    root@xdc-tst-mapre-002 usr]# su – hdfs -c ‘/usr/lib/hadoop/bin/ –config /etc/hadoop/conf start datanode’
    starting datanode, logging to /var/log/hadoop/hdfs/
    Exception in thread “main” java.lang.ExceptionInInitializerError
    Caused by: org.apache.commons.logging.LogConfigurationException: User-specified log class ‘org.apache.commons.logging.impl.Log4JLogger’ cannot be found or is not useable.
    at org.apache.commons.logging.impl.LogFactoryImpl.discoverLogImplementation(
    at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(
    at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(
    at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(
    at org.apache.commons.logging.LogFactory.getLog(
    at org.apache.hadoop.hdfs.server.datanode.DataNode.(
    Could not find the main class: org.apache.hadoop.hdfs.server.datanode.DataNode. Program will exit.

    I’ve tried to remove hadoop (yum erase hadoop), reset the ambari-server and reinstall but the same error comes up each time on this node. Would appreciate some help.


  • Author
  • #15595
    Sasha J

    could you please explain what you did?
    Upgrade from 1.1.1 to 1.2.0 does not have direct upgrade path and is not supported…

    Thank you!

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