Configuring Sun Application Server 8.1 (J2EE 1.4) and MySQL 5

Connecting to MySQL from the “free” Sun Application Server 8.1 Platform Edition (PE) J2EE server

Sun has been offering the "platform edition" of our J2EE 1.4 application server free for download and use for sometime now and I am writing this blog from the Sun JavaOne conference in San Francisco where Sun has just announced the open sourcing of the next version of our J2EE application server i.e. the Java EE 5.0 version. See project for details and to download early versions of the code and also check out Jim Driscoll's blog.

Given that the application server is free and open source and the operating system (Solaris 10) is free and open source it seems to follow that many J2EE developers and users will be or are already interested in using open source and free databases with this free combination of application server and operating system. We have been running the SPECjAppServer2004 J2EE benchmark with the Sun application server 8.1 and MySQL 5.0 and we have learnt much about running the app server with MySQL and with Connector/J, so I thought we would share some of the config details which come from this testing to help you get your application running on this same combination. If you are interested in running either Postgres or Derby in conjunction with Sun application server 8.1 then check out Rajesh's blog entry for Postgres and Lance's blog for Derby.


I suggest using MySQL 5.0.4 (or later) of the MySQL database and version 3.1.8 (or later) of the Connector/J JDBC driver. It is important to note that the Sun application server 8.1 passes the compatibility test suite when using the above versions and this is a big deal because it protects your investment by keeping the platform consistent and your code portable. There are also a number of performance enhancements in the above releases and we have especially noticed significant improvement in the internal SPECjAppServer2004 results due to improvements by MySQL in the Connector/J driver. Also w.r.t versions don't forget if you already have app server 8.1 with JDK 1.4 then a move to J2SE 5.0 will likely boost you performance significantly.

Configuring the connection for MySQL 5 from the application server using the admin console

  1. Under Resources, select JDBC and on right hand side frame, select Connection Pools

  2. Click on New to add create a new connection pool

  3. Provide some name such as mysql-pool and select Datasource type as javax.sql.ConnectionPoolDataSource

  4. 4. Click Next and enter the Datasource Classname as com.mysql.jdbc.jdbc2.optional.MysqlDataSource

  5. 5. Add the following properties to the connection pool:

  6. DatabaseName <your-db-name>

  7. port <your-selected-port-number> default port is 3306

  8. user <DB-User-Name>

  9. Password <DB-User-Password>

  10. ServerName <DB-Server-Name>

  11. Save the settings and click on Ping. If DB server is running and connection can be made, Ping will succeed. Please make sure you have copied the mysql-connector-java-3.1.8-bin.jar jdbc driver in $J2EE_HOME/domains/<domain-name>/lib/ext directory.

Example domain.xml

This is entire connection pool entry for the current testing we are doing with SPECjAppServer2004 (see for more details on the workload and check out the Connector/J documentation for an explanation of the properties.


connection-validation-method="table" datasource- classname="com.mysql.jdbc.jdbc2.optional.MysqlDataSource"
fail-all-connections="false" idle-timeout-in-seconds="300" is-connection-validation-required="false"
is-isolation-level-guaranteed="false" max-pool-size="80" max-wait-time-in-millis="90000"
name="SpecJPool" pool-resize-quantity="4" res-type="javax.sql.DataSource" steady-pool-size="80">

<property name="serverName" value="pdb"/>

<property name="portNumber" value="3306"/>

<property name="User" value="spec"/>

<property name="Password" value="spec"/>

<property name="DatabaseName" value="specdb"/>

<!-- Note : the following are tuning parameters not essential for connectivity

<property name="cachePrepStmts" value="true"/>

<property name="prepStmtCacheSize" value="512"/>

<property name="useServerPrepStmts" value="false"/>

<property name="alwaysSendSetIsolation" value="false"/>

<property name="useLocalSessionState" value="true"/>

<property name="elideSetAutoCommit" value="true"/>

<property name="useUsageAdvisor" value="false"/>

<property name="useReadAheadInput" value="false"/>

<property name="useUnbufferedInput" value="false"/>




See this too:

Posted by Geertjan on June 28, 2005 at 06:59 PM PDT #


Posted by dsa on November 01, 2005 at 09:54 AM PST #

Is this the the Tom Daly who is a Notre Dame graduate and volunteered at Logan School. Please respond to email if so. Thanks

Posted by pen robinson on February 26, 2006 at 04:01 AM PST #

Tom - I was reviewing your "Tuning Glassfish Application Server" presentation at APAC Horizons, May 2007.

What versions of Sun AppServer do these tuning properties work (Gizzly Tuning, JVM tuning, Glassfish Tuning)?

We are currently deploying JCaps 6 (Sun APPServer 9.1, Glassfish V2).

Thank you,

Posted by Richard Lussier on July 31, 2008 at 01:09 AM PDT #

Thanks for the posting. It was very informative.
I have tried to do exactly what was displayed on this page. I saved my setting, but when it comes to ping, I get an error as stated below.

Operation 'pingConnectionPool' failed in 'resources' Config Mbean. Target exception message: Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource

I am unable to figure out if their is something wrong I did or if their is something that you could help. I would also like to know, as like in Netbeans, when you try to connect to Database, we use Mysql connector to connect. I would like to know, if their is something that I should use to ensure connection between J2ee and Mysql database. Any suggestion would be great.



Posted by bob on March 06, 2009 at 04:48 AM PST #

I got d same error as Bob has got.
Can anyone who has tried this one had experienced this kind of error message
and have a solution to resolve it ...
plzzzz let me know.
thank u.

Posted by Aditya on April 20, 2009 at 03:25 AM PDT #

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