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Root Cause Analysis

  1. java.net.ConnectException

    Connection refused

    at sun.nio.ch.SocketChannelImpl.checkConnect()
  2. Java RT
    SocketChannelImpl.finishConnect
    1. sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    2. sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
    2 frames
  3. Hadoop
    RPC$Invoker.invoke
    1. org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
    2. org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
    3. org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434)
    4. org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:560)
    5. org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:184)
    6. org.apache.hadoop.ipc.Client.getConnection(Client.java:1206)
    7. org.apache.hadoop.ipc.Client.call(Client.java:1050)
    8. org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
    8 frames
  4. com.sun.proxy
    $Proxy1.getProtocolVersion
    1. com.sun.proxy.$Proxy1.getProtocolVersion(Unknown Source)
    1 frame
  5. Hadoop
    RPC.getProxy
    1. org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
    2. org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
    2 frames
  6. Apache Hadoop HDFS
    DistributedFileSystem.initialize
    1. org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)
    2. org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)
    3. org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)
    4. org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
    4 frames
  7. Hadoop
    Path.getFileSystem
    1. org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)
    2. org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)
    3. org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)
    4. org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)
    5. org.apache.hadoop.fs.Path.getFileSystem(Path.java:187)
    5 frames
  8. Tachyon Project Core
    Format.main
    1. tachyon.UnderFileSystemHdfs.<init>(UnderFileSystemHdfs.java:69)
    2. tachyon.UnderFileSystemHdfs.getClient(UnderFileSystemHdfs.java:53)
    3. tachyon.UnderFileSystem.get(UnderFileSystem.java:53)
    4. tachyon.Format.main(Format.java:54)
    4 frames