格式化HDFS

格式化HDFS

查看hdfs-site.xml

• 将 dfs.namenode.name.dir和dfs.datanode.data.dir 目录中文件删除

<configuration>
        <property>
                <name>dfs.namenode.name.dir</name>
                <value>file:/data/dfs/name</value>
        </property>

        <property>
                <name>dfs.datanode.data.dir</name>
                <value>file:/data/dfs/data</value>
        </property>

        <property>
                <name>dfs.replication</name>
                <value>3</value>
        </property>

        <property>
                <name>dfs.secondary.http.address</name>
                <value>master:50090</value>
        </property>

</configuration>

查看core-site.xml

• 将hadoop.tmp.dir目录中文件删除

<configuration>
        <property>
                <name>fs.defaultFS</name>
                <value>hdfs://master:9000</value>
        </property>

        <property>
                <name>hadoop.tmp.dir</name>
                <value>file:/data/tmp</value>
        </property>

</configuration>

执行格式化命令

• hadoop namenode -format