java.net.UnknownHostException: RHEL: RHEL

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Root Cause Analysis

  1. java.net.UnknownHostException

    RHEL: RHEL

    at java.net.InetAddress.getLocalHost()
  2. Java RT
    InetAddress.getLocalHost
    1. java.net.InetAddress.getLocalHost(InetAddress.java:1426)
    1 frame
  3. Hadoop
    DNS.<init>
    1. org.apache.hadoop.net.DNS.resolveLocalHostIPAddress(DNS.java:287)
    2. org.apache.hadoop.net.DNS.<init>(DNS.java:58)
    2 frames
  4. Apache Hadoop HDFS
    NameNode.main
    1. org.apache.hadoop.hdfs.server.namenode.NNStorage.newBlockPoolID(NNStorage.java:914)
    2. org.apache.hadoop.hdfs.server.namenode.NNStorage.newNamespaceInfo(NNStorage.java:550)
    3. org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:144)
    4. org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:837)
    5. org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1213)
    6. org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1320)
    6 frames