com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server.

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    com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.

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Root Cause Analysis

  1. com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException

    Could not create connection to database server.

    at sun.reflect.NativeConstructorAccessorImpl.newInstance0()
  2. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    4 frames
  3. MySQL jdbc
    JDBC4Connection.<init>
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
    2. com.mysql.jdbc.Util.getInstance(Util.java:387)
    3. com.mysql.jdbc.SQLError.createSQLException(SQLError.java:917)
    4. com.mysql.jdbc.SQLError.createSQLException(SQLError.java:896)
    5. com.mysql.jdbc.SQLError.createSQLException(SQLError.java:885)
    6. com.mysql.jdbc.SQLError.createSQLException(SQLError.java:860)
    7. com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2330)
    8. com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083)
    9. com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806)
    10. com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
    10 frames
  4. Java RT
    Constructor.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    4 frames
  5. MySQL jdbc
    NonRegisteringDriver.connect
    1. com.mysql.jdbc.Util.handleNewInstance(Util.java:404)
    2. com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410)
    3. com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328)
    3 frames
  6. Java RT
    DriverManager.getConnection
    1. java.sql.DriverManager.getConnection(DriverManager.java:571)
    2. java.sql.DriverManager.getConnection(DriverManager.java:215)
    2 frames
  7. it.noovle.testsql
    HelloAppEngine.testSql
    1. it.noovle.testsql.HelloAppEngine.testSql(HelloAppEngine.java:54)
    1 frame