Solved

We are getting a 'Connection is already closed' exception from WebSphere 5 and jConnect 5.5

Posted on 2004-03-25
3
612 Views
Last Modified: 2013-12-10
We have an web application that uses a Sybase/JDBC Datasource.  We are utilziing the standard connection pooling provided by WebSphere 5 and the jConnect JDBC provider.  We are experiencing intermittent SqlExceptions "JZ0C0: Connection is already closed." when attempting to use connections returned from the Datasource.  We're fairly confident we are dutifully closing all of our statements, result sets and connections when we are done using them.  It is our understanding that when we close a connection, it is returned to the connection pool and is available for further use.

This appears to work properly most of the time.  We have not been able to reproduce it reliably.

-jon
0
Comment
Question by:jonprettyman
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 9

Accepted Solution

by:
mmuruganandam earned 250 total points
ID: 10877123
Make sure that all your connections are closed in the finally block of all your code.  There are chances that your connection might be closed based on one data condition and try to use the same connection in the same block for some other reason.

It is purely a code bug.


Regards,
Muruga
0

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Upgrading Tomcat – There are a couple of methods to upgrade Tomcat is to use The Apache Installer is to download and unzip and run the services.bat remove|install Tomcat6 Because of the App that we are working with, we can only use Tomcat 6.…
There are numerous questions about how to setup an IBM HTTP Server to be administered from WebSphere Application Server administrative console. I do hope this article will wrap things up and become a reference for this task. You need three things…
In this video, viewers will be given step by step instructions on adjusting mouse, pointer and cursor visibility in Microsoft Windows 10. The video seeks to educate those who are struggling with the new Windows 10 Graphical User Interface. Change Cu…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

734 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question