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Re: HELP - Problem in setting up Hadoop - Multi-Node Cluster
Please use jdk 6 latest.

best,
 Alex

--
Alexander Lorenz
http://mapredit.blogspot.com

On Feb 9, 2012, at 11:11 AM, hadoop hive wrote:

> did you make check the ssh between localhost means its should be ssh password less between localhost
>
> public-key =authorized_key
>
> On Thu, Feb 9, 2012 at 1:06 AM, Robin Mueller-Bady <[EMAIL PROTECTED]> wrote:
> Dear Guruprasad,
>
> it would be very helpful to provide details from your configuration files as well as more details on your setup.
> It seems to be that the connection from slave to master cannot be established ("Connection reset by peer").
> Do you use a virtual environment, physical master/slaves or all on one machine ?
> Please paste also the output of "kingul2" namenode logs.
>
> Regards,
>
> Robin
>
>
> On 02/08/12 13:06, Guruprasad B wrote:
>> Hi,
>>
>> I am Guruprasad from Bangalore (India). I need help in setting up hadoop
>> platform. I am very much new to Hadoop Platform.
>>
>> I am following the below given articles and I was able to set up
>> "Single-Node Cluster
>> "
>> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/#what-we-want-to-do
>>
>> Now I am trying to set up "
>> Multi-Node Cluster" by following the below given
>> article.
>>
>> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/
>>
>>
>> Below given is my setup:
>> Hadoop : hadoop_0.20.2
>> Linux: Ubuntu Linux 10.10
>> Java: java-7-oracle
>>
>>
>> I have successfully reached till the topic "Starting the multi-node
>> cluster" in the above given article.
>> When I start the HDFS/MapReduce daemons it is getting started and going
>> down immediately both in master & slave as well,
>> please have a look at the below logs,
>>
>> hduser@kinigul2:/usr/local/hadoop$ bin/start-dfs.sh
>> starting namenode, logging to
>> /usr/local/hadoop/bin/../logs/hadoop-hduser-namenode-kinigul2.out
>> master: starting datanode, logging to
>> /usr/local/hadoop/bin/../logs/hadoop-hduser-datanode-kinigul2.out
>> slave: starting datanode, logging to
>> /usr/local/hadoop/bin/../logs/hadoop-hduser-datanode-guruL.out
>> master: starting secondarynamenode, logging to
>> /usr/local/hadoop/bin/../logs/hadoop-hduser-secondarynamenode-kinigul2.out
>>
>> hduser@kinigul2:/usr/local/hadoop$ jps
>> 6098 DataNode
>> 6328 Jps
>> 5914 NameNode
>> 6276 SecondaryNameNode
>>
>> hduser@kinigul2:/usr/local/hadoop$ jps
>> 6350 Jps
>>
>>
>> I am getting below given error in slave logs:
>>
>> 2012-02-08 21:04:01,641 ERROR
>> org.apache.hadoop.hdfs.server.datanode.DataNode: java.io.IOException: Call
>> to master/
>> 16.150.98.62:54310
>>  failed on local exception:
>> java.io.IOException: Connection reset by peer
>>     at org.apache.hadoop.ipc.Client.wrapException(Client.java:775)
>>     at org.apache.hadoop.ipc.Client.call(Client.java:743)
>>     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:220)
>>     at $Proxy4.getProtocolVersion(Unknown Source)
>>     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:359)
>>     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:346)
>>     at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:383)
>>     at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:314)
>>     at org.apache.hadoop.ipc.RPC.waitForProxy(RPC.java:291)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:269)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:216)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1283)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1238)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1246)
>>     at
>> org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1368)
>> Caused by: java.io.IOException: Connection reset by peer
>>     at sun.nio.ch.FileDispatcherImpl.read0(Native Method)
>>     at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39)