hive in vanilla fail to start

The Hive service in vanilla-2.7.1 cluster(ubuntu) image is not working because of failed to execute command
"hive --service metastore".

When I manually execute this command(without changing hive-site.xml), the results in terminal are:

>> hive --service metastore
   ...
   NestedThrowablesStackTrace:
   com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
   ...
   Exception in thread "main" javax.jdo.JDOFatalDataStoreException: Communications link failure
   Caused by: java.net.ConnectException: Connection refused (Connection refused)
 at java.net.PlainSocketImpl.socketConnect(Native Method)
 at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
 at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
 at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
 at java.net.Socket.connect(Socket.java:589)
 at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:211)
 at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:298)