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Posted to common-user@hadoop.apache.org by "Mr.Thien" <th...@anlab.vn> on 2008/08/07 08:51:32 UTC

run hadoop multinode

Hi all
When i run hadoop with two machines
	one machines (192.168.1.30) is master and also a data node 
	one machines (192.168.1.159) is date node
 i met a problem with datanode in 192.168.1.30 as :

2008-08-07 13:40:14,814 INFO org.apache.hadoop.dfs.DataNode:
192.168.1.30:50010:Transmitted block blk_-5899868331407844146
to /192.168.1.159:50010
2008-08-07 13:40:16,789 INFO org.apache.hadoop.dfs.DataNode:
192.168.1.30:50010 Served block blk_-5331221089991841757
to /192.168.1.30
2008-08-07 13:40:17,988 WARN org.apache.hadoop.dfs.DataNode:
192.168.1.30:50010:Got exception while serving blk_-5331221089991841757
to /192.168.1.159:
java.io.IOException: Connection reset by peer
	at sun.nio.ch.FileDispatcher.write0(Native Method)
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
	at sun.nio.ch.IOUtil.write(IOUtil.java:75)
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
	at org.apache.hadoop.net.SocketOutputStream
$Writer.performIO(SocketOutputStream.java:53)
	at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:140)
	at
org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:144)
	at
org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:105)
	at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105)
	at java.io.DataOutputStream.write(DataOutputStream.java:90)
	at org.apache.hadoop.dfs.DataNode
$BlockSender.sendChunks(DataNode.java:1774)
	at org.apache.hadoop.dfs.DataNode
$BlockSender.sendBlock(DataNode.java:1813)
	at org.apache.hadoop.dfs.DataNode
$DataXceiver.readBlock(DataNode.java:1039)
	at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:968)
	at java.lang.Thread.run(Thread.java:619)

2008-08-07 13:40:17,989 ERROR org.apache.hadoop.dfs.DataNode:
192.168.1.30:50010:DataXceiver: java.io.IOException: Connection reset by
peer
	at sun.nio.ch.FileDispatcher.write0(Native Method)
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:29)
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
	at sun.nio.ch.IOUtil.write(IOUtil.java:75)
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
	at org.apache.hadoop.net.SocketOutputStream
$Writer.performIO(SocketOutputStream.java:53)
	at
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:140)
	at
org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:144)
	at
org.apache.hadoop.net.SocketOutputStream.write(SocketOutputStream.java:105)
	at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105)
	at java.io.DataOutputStream.write(DataOutputStream.java:90)
	at org.apache.hadoop.dfs.DataNode
$BlockSender.sendChunks(DataNode.java:1774)
	at org.apache.hadoop.dfs.DataNode
$BlockSender.sendBlock(DataNode.java:1813)
	at org.apache.hadoop.dfs.DataNode
$DataXceiver.readBlock(DataNode.java:1039)
	at org.apache.hadoop.dfs.DataNode$DataXceiver.run(DataNode.java:968)
	at java.lang.Thread.run(Thread.java:619)

What must i do to run ??
Thanks very much