Hadoop-2.2.0 "It looks like you are making an HTTP request to a Hadoop IPC port. "

I am new to hadoop.After I have installed the hadoop-2.2.0 on single-node,I visited the url:localhost:9000,it returned the following result: It looks like you are making an HTTP request to a Hadoop IPC port. This is not the correct port for the web interface on this daemon. I have configured my core-site.xml as below: ``` <property> <name>fs.default.name</name> <value>hdfs://localhost:9000</value> <description>The name of the defaultfile system. Either the literal string "local" or a host:port. </description> <final>true</final> </property> ``` How can I solved the problem? Thanks in advance.