Hello, I don't know if I am in right topic with this question but I have a problem which I can't solve.
So. I have installed the lastest version of GlassFish and I wanna create new datapool using MySQL.
But when I create it and then I ping it, it shows me this error:
Ping Connection Pool failed for Testing. Connection could not be allocated because: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.net.ConnectException: Connection refused: connect STACKTRACE: java.net.SocketException: java.net.ConnectException: Connection refused: connect at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156) at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:284) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2569) at com.mysql.jdbc.Connection.<init>(Connection.java:1485) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlDataSource.java:425) at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlDataSource.java:140) at com.mysql.jdbc.jdbc2.optional.MysqlDataSource.getConnection(MysqlDataSource.java:110) at com.mysql.jdbc.jdbc2.opt .... msg.seeServerLog
I really need to help please.