[HADOOP-282] the datanode crashes if it starts before the namenode

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 0.3.1
• Fix Version/s: 0.3.2
• Assignee: Owen O'Malley
• Reporter: Owen O'Malley
• Created: 07/Jun/06 06:07
• Updated: 08/Jul/09 16:41
• Resolved: 08/Jun/06 04:09

Description

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)