Communication Link Failure Error
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Ora-03113 Communication Link Failure
Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Solving a “communications link failure” with JDBC and MySQL [duplicate] up vote 89 down vote favorite 63 This question already has an answer here: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 20 communication link failure sql server 2008 answers I'm trying to connect to the local MySQL server but I keep getting an error. Here is the code. public class Connect { public static void main(String[] args) { Connection conn = null; try { String userName = "myUsername"; String password = "myPassword"; String url = "jdbc:mysql://localhost:3306/myDatabaseName"; Class.forName("com.mysql.jdbc.Driver").newInstance(); conn = DriverManager.getConnection(url, userName, password); System.out.println("Database connection established"); } catch (Exception e) { System.err.println("Cannot connect to database server"); System.err.println(e.getMessage()); e.printStackTrace(); } finally { if (conn != null) { try { conn.close(); System.out.println("Database Connection Terminated"); } catch (Exception e) {} } } } } and the errors : Cannot connect to database server Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInst
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Recent PostsRecent Posts Popular TopicsPopular Topics Home Search Members Calendar Who's On Home » SQL Server 7,2000 » Administration » [Microsoft ODBC driver] Communication link... [Microsoft ODBC driver] Communication link failure Rate Topic Display Mode Topic Options Author Message ninadraje_shindeninadraje_shinde Posted Friday, January 18, 2008 11:06 AM Forum Newbie Group: General Forum Members Last Login: Friday, February 1, 2008 1:30 AM Points: 4, Visits: 11 hi do any one have solution for this error..[Microsoft ODBC driver] Communication link failurei am at client side.. domain controller (OS - server 2000) is on server and sql server 2000 enterprise edition (server 2003) is on another server.my client pc is always getting disconnect due to this error..... i have installed MDAC 2.8 still i am not able to solve problem.... can any one help me...... Post #445042 Jo PattynJo Pattyn Posted Friday, January 18, 2008 11:48 AM SSCommitted Group: General Forum Members Last Login: Today @ 8:40 AM Points: 1,533, Visits: 9,570 Is this a intermittent error or always?1)Check if the network connection is primestable2)Check the integrity of your database. An integrity fault due corruption can cause an aborted connection.More things to check.3) The server is momentarely down4) .. Post #445066 ninadraje_shindeninadraje_shinde Posted Friday, January 18, 2008 9:11 PM Forum Newbie Group: General Forum Members Last Login: Friday, February 1, 2008 1:30 AM Points: 4, Visits: 11 -this is not intermittent error.1)Check if the network connection is primestableyes... i have checked. i have look for long time on server. everything is ok. infact when i m getting disconnected with client, i have to restart the client computer and the connection gets eshtablished again...........2)Check the integrity of your database. An integrity fault due corruption can cause an aborted connection.-can you help me in this regards.... i am not sure what exactly should do for database intigity.More t