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  1. Hadoop HDFS
  2. HDFS-7734

Class cast exception in NameNode#main

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Details

    • Bug
    • Status: Closed
    • Blocker
    • Resolution: Fixed
    • 2.7.0
    • 2.7.0
    • namenode
    • None

    Description

      NameNode hits the following exception immediately on startup.

      15/02/03 15:50:25 ERROR namenode.NameNode: Failed to start namenode.
      java.lang.ClassCastException: org.apache.log4j.Logger cannot be cast to org.apache.commons.logging.Log
              at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1557)
      15/02/03 15:50:25 INFO util.ExitUtil: Exiting with status 1
      

      Location of the exception in NameNode.java:

        public static void main(String argv[]) throws Exception {
          if (DFSUtil.parseHelpArgument(argv, NameNode.USAGE, System.out, true)) {
            System.exit(0);
          }
      
          try {
            StringUtils.startupShutdownMessage(NameNode.class, argv,
                (org.apache.commons.logging.Log) LogManager.getLogger(LOG.getName()));   <<<<< Failed here.
      

      Attachments

        1. HDFS-7734.002.patch
          6 kB
          Yi Liu
        2. HDFS-7734.001.patch
          7 kB
          Yi Liu

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            People

              hitliuyi Yi Liu
              arp Arpit Agarwal
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              Dates

                Created:
                Updated:
                Resolved: