安装jdk并配好环境,安装好hadoop
配置以下六个文件
core-site.xml
<configuration>
<!--配置nameservice-->
<property>
<name>fs.defaultFS</name>
<value>hdfs://hadoop31:8020</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/app/hadoop/tmp</value>
</property>
</configuration>
hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>/app/hadoop/dfs/name,/app/hadoop/dfs2/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/app/hadoop/dfs/name,/app/hadoop/dfs2/name</value>
</property>
</configuration>
mapred-site.xml
<configuration>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
</configuration>
yarn-site.xml
<configuration>
<!--配置nodemanager处理数据的方式-->
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
</configuration>
slaves
hadoop31
配置完成后
hdfs namenode -format ::初始化namenode
启动hadoop