org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.NullPointerException

Server Fault | AliBZ | 5 years ago
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    starting hadoop on mac os lion

    Server Fault | 5 years ago | AliBZ
    org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.NullPointerException
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    Hadoop:お題目うぉっち

    livedoor.jp | 9 months ago
    org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.NullPointerException
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    hadoop datanode unable to start. "does not contain a valid host:port authority"

    Stack Overflow | 2 years ago
    org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.IllegalArgumentException: Does not contain a valid host:port authority: file:///
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    Root Cause Analysis

    1. org.apache.hadoop.hdfs.server.datanode.DataNode

      java.lang.NullPointerException

      at org.apache.hadoop.net.NetUtils.createSocketAddr()
    2. Hadoop
      NetUtils.createSocketAddr
      1. org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:136)
      1 frame
    3. Apache Hadoop HDFS
      DataNode.main
      1. org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:176)
      2. org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:206)
      3. org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:200)
      4. org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:306)
      5. org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:268)
      6. org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1480)
      7. org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1419)
      8. org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1437)
      9. org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1563)
      10. org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1573)
      10 frames