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List:       hadoop-user
Subject:    Mass SocketTimeoutException - 0.20.203
From:       Shi Yu <shiyu () uchicago ! edu>
Date:       2012-04-30 3:21:51
Message-ID: 20120429222151.BIW75327 () mstore03 ! uchicago ! edu
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Tons of errors seen after Map 100% Reduce 50%, but the job 
still struggles to finish. What is the possible reason? Is 
this issue fixed in any of the version?

java.net.SocketTimeoutException: 69000 millis timeout while 
waiting for channel to be ready for read. ch : 
java.nio.channels.SocketChannel[connected 
local=/10.105.19.35:58539 remote=/10.105.19.35:50010]
	at 
org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTim
eout.java:164)
	at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream
.java:155)
	at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream
.java:128)
	at 
org.apache.hadoop.net.SocketInputStream.read(SocketInputStream
.java:116)
	at 
java.io.DataInputStream.readShort(DataInputStream.java:295)
	at 
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.createBlockOu
tputStream(DFSClient.java:3060)
	at 
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.nextBlockOutp
utStream(DFSClient.java:2983)
	at 
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream.access$2000(D
FSClient.java:2255)
	at 
org.apache.hadoop.hdfs.DFSClient$DFSOutputStream$DataStreamer.
run(DFSClient.java:2446)
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