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From Alessandro Binhara <binh...@gmail.com>
Subject Hadoop datanote question
Date Wed, 26 Jan 2011 11:24:10 GMT
Hello..

I'm confused about the architecture of HDFS
I have a client java write a files on a master node. It´s work perfect!..
well i see a HDFS architecture
http://hadoop.apache.org/common/docs/r0.20.0/images/hdfsarchitecture.gif
some client access a data note..

i try use my java client write direct on slave node. I change IP on client
configuration:
                Configuration conf = new Configuration();
conf.set("fs.default.name","hdfs://192.168.254.25:54310/"); //slave ip

I got this error. .
26/01/2011 09:19:52 org.apache.hadoop.ipc.Client$Connection
handleConnectionFailure
It dont work ..

In architecture picture show me that all datanode can conectable. That´s
correct ?

How it work ?
I can only conect to write on HDFS on master node ??

thank s

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