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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-282) the datanode crashes if it starts before the namenode
Date Tue, 06 Jun 2006 23:08:29 GMT
the datanode crashes if it starts before the namenode
-----------------------------------------------------

         Key: HADOOP-282
         URL: http://issues.apache.org/jira/browse/HADOOP-282
     Project: Hadoop
        Type: Bug

  Components: dfs  
    Versions: 0.3.1    
    Reporter: Owen O'Malley
 Assigned to: Owen O'Malley 
    Priority: Critical
     Fix For: 0.3.2
 Attachments: data-node-first.patch

If the datanode tries to register before the namenode is offering service, it crashes with
a uncaught exception.

java.net.ConnectE
xception: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
        at java.net.Socket.connect(Socket.java:507)
        at java.net.Socket.connect(Socket.java:457)
        at java.net.Socket.<init>(Socket.java:365)
        at java.net.Socket.<init>(Socket.java:207)
        at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:112)
        at org.apache.hadoop.ipc.Client.getConnection(Client.java:351)
        at org.apache.hadoop.ipc.Client.call(Client.java:289)
        at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:150)
        at org.apache.hadoop.dfs.$Proxy0.register(Unknown Source)
        at org.apache.hadoop.dfs.DataNode.register(DataNode.java:176)
        at org.apache.hadoop.dfs.DataNode.<init>(DataNode.java:109)
        at org.apache.hadoop.dfs.DataNode.makeInstanceForDir(DataNode.java:892)
        at org.apache.hadoop.dfs.DataNode.run(DataNode.java:846)
        at org.apache.hadoop.dfs.DataNode.runAndWait(DataNode.java:862)
        at org.apache.hadoop.dfs.DataNode.main(DataNode.java:917)

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