Setup
http://hadoop.apache.org/docs/r2.7.3/hadoop-project-dist/hadoop-common/SingleCluster.html
etc/hadoop/hadoop-env.sh
export JAVA_HOME=/opt/jdk1.7.0_79
ssh key
ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 0600 ~/.ssh/authorized_keys
etc/hadoop/core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://ubuntu:9000</value>
</property>
</configuration>
etc/hadoop/hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
Test
bin/hdfs namenode -format
sbin/start-dfs.sh
bin/hdfs dfs -mkdir /user
bin/hdfs dfs -mkdir /user/cj
bin/hdfs dfs -ls -R /
bin/hadoop fs -ls -R /
sbin/stop-dfs.sh
YARN
etc/hadoop/mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
etc/hadoop/yarn-site.xml
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>
yarn
sbin/start-yarn.sh
http://localhost:8088/
sbin/stop-yarn.sh
