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From Arthur Caranta <art...@caranta.com>
Subject Datanode Registration DataXceiver java.io.EOFException
Date Mon, 04 Oct 2010 13:06:38 GMT
 Hi everyone.

This is my first post on this mailing list and I hope I won't do any
mistakes ;)

I work for a French telecom operator ad we have recently started a
Hadoop project.

We currently have two clusters:
-a preproduction cluster running with 1 master plus 4 nodes
-a production cluster running with 1 master plus 24 nodes

Both clusters are running Hadoop 0.20.2 and the jobs are running smoothly.

However, on every datanodes of each cluster I receive, every 5 minutes,
I see this error :
2010-10-04 14:31:46,564 ERROR
org.apache.hadoop.hdfs.server.datanode.DataNode:
DatanodeRegistration(xx.xx.xx.xx:50010,
storageID=DS-1295517999-xx.xx.xx.xx-50010-1280483437127, infoPort=50075,
ipcPort=50020):DataXceiver
java.io.EOFException
    at java.io.DataInputStream.readShort(DataInputStream.java:298)
    at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:79)
    at java.lang.Thread.run(Thread.java:619)

2010-10-04 14:36:46,804 ERROR
org.apache.hadoop.hdfs.server.datanode.DataNode:
DatanodeRegistration(xx.xx.xx.xx:50010,
storageID=DS-1295517999-xx.xx.xx.xx-50010-1280483437127, infoPort=50075,
ipcPort=50020):DataXceiver
java.io.EOFException
    at java.io.DataInputStream.readShort(DataInputStream.java:298)
    at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:79)
    at java.lang.Thread.run(Thread.java:619)


And I can't find anything on the web ...

Anyone has a clue ?

Best Regards,

-- 
------------------------------
Arthur CARANTA
arthur@caranta.com
http://www.caranta.com
------------------------------ 



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