java.io.IOException: NameNode is notformatted.

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    java.io.IOException: NameNode is notformatted.
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    java.io.IOException: NameNode is not formatted.

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    Root Cause Analysis

    1. java.io.IOException

      NameNode is notformatted.

      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:305)
      2. org.apache.hadoop.hdfs.server.namenode.FSDirectory.loadFSImage(FSDirectory.java:87)
      3. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize(FSNamesystem.java:309)
      4. org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:288)
      5. org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:163)
      6. org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java)
      7. org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java)
      8. org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:859)
      9. org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:868)
      9 frames