problem in portal 5.2.1

i was using liferay 5.1.2, then i upgraded it to liferay 5.2.1 (with tomcat-5.5.27) ,
i set portal-ext.properties with this way

# MySQL
#
jdbc.default.driverClassName=com.mysql.jdbc.Driver
jdbc.default.url=jdbc:mysql://localhost/newlportal?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
jdbc.default.username=root
jdbc.default.password=root

my databae upgraded but portal dosn't work and i see this error in log file
java.sql.SQLException: Connections could not be acquired from the underlying database!

can you help me?

HI,

You may first verify your database settings ....

Make sure that the database newlportal was created properly ....

Let me know your testing ....

Thanks

Jonas Yuan

>try to use mysql db port (3306) if it is it
jdbc.default.url=jdbc:mysql://localhost:3306/newlportal?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false


>did you try to remove the lportal database and create new one again?

As mentioned above, why have you not specified the port number that mysql is listening to?