ubuntu18.04下搭建hadoop3.1.2报错localhost: Bad port 'localhost'

Question

jdk是1.8，hdfs namenode -format执行的没问题，但是start-dfs就不行了
core-site.xml

<configuration>
        <property>
                <name>hadoop.tmp.dir</name>
                <value>/usr/local/hadoop3/tmp</value>
                <description>Abase for other temporary directories.</description>
        </property>
        <property>
                <name>fs.defaultFS</name>
                <value>hdfs://localhost:9000</value>
        </property>
</configuration>

hdfs-site.xml

<configuration>
        <property>
                <name>dfs.replication</name>
                <value>1</value>
        </property>
        <property>
                <name>dfs.namenode.name.dir</name>
                <value>/usr/local/hadoop3/tmp/dfs/name</value>
        </property>
        <property>
                <name>dfs.datanode.data.dir</name>
                <value>/usr/local/hadoop3/tmp/dfs/data</value>
        </property>
</configuration>

报的错是

root@localhost:/usr/local/hadoop3# sbin/start-dfs.sh
WARNING: HADOOP_SECURE_DN_USER has been replaced by HDFS_DATANODE_SECURE_USER. Using value of HADOOP_SECURE_DN_USER.
Starting namenodes on [localhost]
localhost: Bad port 'localhost'
Starting datanodes
localhost: Bad port 'localhost'
Starting secondary namenodes [localhost]
localhost: Bad port 'localhost'
2019-10-07 23:11:41,023 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

Answer 1

你是不是把主机名和端口号混淆了，端口号是一个数字，怎么是localhost