After you have defined and saved a data source, you can
click the Test Connection button to ensure that the parameters
in the data source definition are correct.
Before you begin
About this task
You can select multiple data sources on the data source collection
page and test them as a group. Be sure that the following conditions
are met before using the Test Connection button:
Procedure
- If you are testing a connection using a WebSphere® Application
Server Version 4.0 type of data source, ensure that the user and password information
is set.
- Designate variables appropriately.
If you used a WebSphere environment entry
for the class path or other fields, such as ${DB2_JDBC_DRIVER_PATH}/db2java.zip,
make sure that you assign it a value in the WebSphere Variables page.
If you used a WebSphere environment entry
for the class path or other fields, such as ${DB2390_JDBC_DRIVER_PATH}/classes/db2j2classes.zip,
make sure that you assign it a value in the WebSphere Variables page.
- WebSphere Application Server automatically
sets environment variables for JDBC driver class paths on the IBM
i platform. Application Server names the variable according to your
driver, either ${OS400_NATIVE_JDBC_DRIVER_PATH} or ${OS400_TOOLBOX_JDBC_DRIVER_PATH}.
In the administrative console, you designate the complete path location
of your driver as the value of the environment variable. (See the JDBC provider settings article for more information.)
- If you download the latest JTOpen version of the jt400.jar file,
use one of two placement strategies to keep the value of your environment
variable accurate. You can place the file in the same directory that
you specify for the ${OS400_TOOLBOX_JDBC_DRIVER_PATH} variable. Alternatively,
you can place the jt400.jar file in a different directory and change
the value of ${OS400_TOOLBOX_JDBC_DRIVER_PATH} to this different path.
- Verify that the environment
variables exist in the scope of the test. For example, if the node scoped
data source you defined uses ${DB2_JDBC_DRIVER_PATH}, check
that there exists a node level definition for DB2_JDBC_DRIVER_PATH
= c:\sqllib\java( or your system dependent value).
- Restart the deployment
manager and node agents after you define or edit WebSphere variables.
- Restart the deployment
manager and node agents after you create or edit an authentication
alias for the data source.
- Ensure that the
deployment manager and node agent are up and running.
- You can now test a connection to the data source. On the
data source collection page in the administrative console, select
the data source and click Test Connection .
A
Test Connection operation can have three different outcomes, each
resulting in a different message being displayed in the messages panel
of the page on which you press the Test Connection button.
- The test can complete successfully, meaning that a connection
is successfully obtained to the database using the configured data
source parameters. The resulting message states: Test Connection
for data source DataSourceName on process ProcessName at
node NodeName was successful.
- The test can complete successfully with warnings. This means
that while a connection is successfully obtained to the database,
warnings were issued. The resulting message states: Test Connection
for data source DataSourceName on process ProcessName at
node NodeName was successful with warning(s). View the JVM
Logs for more details.
The View the JVM Logs text is a hyperlink
that takes you to the JVM Logs console screen for the process.
- The test can fail. A connection to the database with the configured
parameters is not obtained. The resulting message states: Test Connection
failed for data source DataSourceName on process ProcessName at
node NodeName with the following exception: ExceptionText.
View the JVM Logs for more details.
Again, the text for View
the JVM Logs is a hyperlink to the appropriate logs screen.