Netstat shows numerous CLOSE_WAIT states for mysql connections

Posted by Sudheer on Stack Overflow See other posts from Stack Overflow or by Sudheer
Published on 2010-05-23T13:17:58Z Indexed on 2010/05/23 13:20 UTC
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The output of netstat -an shows many mysql connections in CLOSE_WAIT state and when i checked the processlist in mysql using 'SHOW PROCESSLIST' the connections shown in netstat do not appear. What possible could be the reason for this. I use tomcat with mysql-connector and use a Connection Pool as well.

Is it that the application is not closing the mysql connection or is there any other reason for this behaviour... sometimes the CLOSE_WAIT reaches over 200.

On the application level i made sure that i close all the connections(make sure i issue a close() command in the finally block) created using jdbc.

Any help would be appreciated.

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