com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: in mysql

Question

Hi I have created jdbc program and database is MySQL 5.1 Also all my friends using same database for connection. Total number of connection became 150 from all of us. So whe

Answer 1

I solved the problem by increasing number of connection

set @@global.max_connections = 1250;

Have a look on the below link http://www.netadmintools.com/art573.html

Answer 2

Maybe you haven't create the databases or tables in the databases. Please check the reason behind "Could not create connection to database server."

I have met this error, because I didn't create the database.

Answer 3

One possibility is that you've forgot to setup the environment variable for MySQL in your OS.

Answer 4

when you make a connection from higher versions of android version 9 to a mysql server you must always allow connections through:

if (Constants.VERSION_SDK > 9) {
      StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
      StrictMode.setThreadPolicy(policy);
}