org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Incompatible namespaceIDs in /Users/jchen/Data/Hadoop/dfs/data: namenode namespaceID = 773619367; datanode namespaceID = 2049079249

Stack Overflow | Jieren | 7 years ago
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    Stack Overflow | 7 years ago | Jieren
    org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Incompatible namespaceIDs in /Users/jchen/Data/Hadoop/dfs/data: namenode namespaceID = 773619367; datanode namespaceID = 2049079249
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    Google Groups | 5 years ago | Vijayakumar Ramdoss
    org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Incompatible namespaceIDs in /var/lib/hadoop-0.20/cache/hdfs/dfs/data: namenode namespaceID = 470535428; datanode namespaceID = 1304806298

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    Root Cause Analysis

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

      java.io.IOException: Incompatible namespaceIDs in /Users/jchen/Data/Hadoop/dfs/data: namenode namespaceID = 773619367; datanode namespaceID = 2049079249

      at org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition()
    2. Apache Hadoop HDFS
      DataNode.main
      1. org.apache.hadoop.hdfs.server.datanode.DataStorage.doTransition(DataStorage.java:233)
      2. org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:148)
      3. org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:298)
      4. org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
      5. org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
      6. org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
      7. org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1246)
      8. org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1368)
      8 frames