在Ubuntu上配置Hadoop环境是一个相对复杂的过程,涉及多个步骤。以下是一个详细的指南,帮助你在Ubuntu上配置Hadoop环境:
sudo apt update
sudo apt install openjdk-8-jdk
java -version
sudo apt install openssh-server
wget http://mirror.bit.edu.cn/apache/hadoop/common/hadoop-3.3.4/hadoop-3.3.4.tar.gz
tar -zxvf hadoop-3.3.4.tar.gz -C /opt/
sudo mv /opt/hadoop-3.3.4 /opt/hadoop
echo 'export HADOOP_HOME=/opt/hadoop' >> ~/.bashrc
echo 'export PATH=$PATH:$HADOOP_HOME/bin:$HADOOP_HOME/sbin' >> ~/.bashrc
source ~/.bashrc
sudo vi /opt/hadoop/etc/hadoop/hadoop-env.sh
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
<configuration>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>localhost</value>
</property>
</configuration>
hdfs namenode -format
start-dfs.sh
start-yarn.sh
http://localhost:50070
http://localhost:8088
通过以上步骤,你可以在Ubuntu上成功配置Hadoop环境。接下来,你可以开始学习使用Hadoop进行大数据处理了。