org.apache.hadoop.hdfs.server.namenode.NameNode: java.io.IOException: NameNode is not formatted.

incubator-ambari-user | Dustine Rene Bernasor | 4 years ago
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    incubator-ambari-user | 4 years ago | Dustine Rene Bernasor
    org.apache.hadoop.hdfs.server.namenode.NameNode: java.io.IOException: NameNode is not formatted.
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    hadoop namenode not running on 2 node cluster of two ec2 instances:Error FSNamesystem initialization failed

    Stack Overflow | 2 years ago | user553182
    org.apache.hadoop.hdfs.server.namenode.NameNode: java.io.IOException: NameNode is not formatted.

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    Root Cause Analysis

    1. org.apache.hadoop.hdfs.server.namenode.NameNode

      java.io.IOException: NameNode is not formatted.

      at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead()
    2. Apache Hadoop HDFS
      NameNode.main
      1. org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:330)
      2. org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:100)
      3. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:411)
      4. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:379)
      5. org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:287)
      6. org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:548)
      7. org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1431)
      8. org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1440)
      8 frames