sudo apt-get update
sudo apt-get install openjdk-8-jdk -y
javac -version
로 잘 설치되었는지 확인합니다.ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
chmod 0600 ~/.ssh/authorized_keys
wget https://dlcdn.apache.org/hadoop/common/hadoop-3.3.1/hadoop-3.3.1.tar.gz
tar xzf hadoop-3.3.1.tar.gz
sudo mv -f hadoop-3.3.1 /opt
sudo ln -s /opt/hadoop-3.3.1 /opt/hadoop
vi /opt/hadoop/etc/hadoop/core-site.xml
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
vi /opt/hadoop/etc/hadoop/hdfs-site.xml
<configuration>
<property>
<name>dfs.namenode.name.dir</name>
<value>/opt/hadoop/dfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/opt/hadoop/dfs/data</value>
</property>
<property>
<name>dfs.namenode.checkpoint.dir</name>
<value>/opt/hadoop/dfs/namesecondary</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
vi ~/.profile
을 통해 우리가 설치한 환경에 대해 아래와 같이 환경변수를 추가합니다.
export HADOOP_HOME=/opt/hadoop
export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
vi /opt/hadoop/etc/hadoop/hadoop-env.sh
를 통해 hadoop 환경변수도 추가합니다.
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-amd64
hdfs namenode -format
한 후에 ssh ${USER}@localhost
해서 다시 접속한 후에 start-dfs.sh
하여 잘 설치되었는지 테스트 합니다.공식문서의 값을 그대로 사용하였습니다.
vi /opt/hadoop/etc/hadoop/yarn-site.xml
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.env-whitelist</name>
<value>JAVA_HOME,HADOOP_COMMON_HOME,HADOOP_HDFS_HOME,HADOOP_CONF_DIR,CLASSPATH_PREPEND_DISTCACHE,HADOOP_YARN_HOME,HADOOP_HOME,PATH,LANG,TZ,HADOOP_MAPRED_HOME</value>
</property>
</configuration>
vi /opt/hadoop/etc/hadoop/mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.application.classpath</name>
<value>$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/*:$HADOOP_MAPRED_HOME/share/hadoop/mapreduce/lib/*</value>
</property>
</configuration>
start-yarn.sh
나 stop-yarn.sh
로 테스트해 볼 수 있습니다.