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Posted to common-user@hadoop.apache.org by Shi Yu <sh...@uchicago.edu> on 2012/04/30 05:21:51 UTC

Mass SocketTimeoutException - 0.20.203

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)