Hadoop not communicating with resourcemanager - hadoop

Question

Hi currently I'm running hadoop 2.4.1. I have created a simple java program DefaultMapperClass.java using eclipse and packaged it into ex1.jar
When I try to invoke this program via hadoop shell using the command,
**hadoop jar /home/Maddy/ex1.jar DefaultMapperClass hdfs://localhost/users/root/input/Hadoop.txt hdfs://localhost/users/root/output**
I get the below output in hadoop shell
**[root#localhost Maddy]# hadoop jar /home/Maddy/ex1.jar DefaultMapperClass hdfs://localhost/users/root/input/Hadoop.txt hdfs://localhost/users/root/output
14/09/05 19:26:35 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
Job started: Fri Sep 05 19:26:35 CDT 2014
14/09/05 19:26:35 INFO client.RMProxy: Connecting to ResourceManager at localhost/127.0.0.1:8032
[root#localhost Maddy]#**
Seems like hadoop shell is trying to connect to resource manager but unsuccessful but there is no error message
mapred-site.xml file:
**<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>**
yarn-site.xml:
**<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux-services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>localhost:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>localhost:8030</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>localhost:8031</value>
</property>
</configuration>**
What is missing here? Why execution is terminated after attempting to connect to resource manager?

Answer 1

I would suggest removing the following configurations from the yarnsite.xml as they are unnecessary :
<property>
<name>yarn.resourcemanager.address</name>
<value>localhost:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>localhost:8030</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name>
<value>localhost:8031</value>
</property>
You can access the resource manager at localhost:8088