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# Application-Scoped JDBC Connection Pools --> Testing

Tasks Related Topics Attributes

## Overview

In the JDBC Connection Pool—>Testing tab, you can test a JDBC connection in a connection pool on each server on which the connection pool is deployed.

When you test a connection pool, WebLogic Server reserves and releases a connection from the connection pool.

Note: To make the test more meaningful, make sure that Check On Reserve Enabled or Check On Release Enabled is selected on the Configuration—>Descriptor tab. If either of these options is selected, WebLogic Server not only reserves and releases a connection, but also tests the physical database connection. See `Check On Reserve Enabled` in Attributes.

## Tasks

Testing an Application-Scoped Connection Pool

## Related Topics

Application-Scoped JDBC Data Sources and Connection Pools

Deploying Applications and Modules

## Attributes

Server Name—The name of the server on which the connection pool is deployed. Click the Test Pool button for this server to test a connection from this instance of the connection pool.

Pool State—The current state of the instance of the connection pool: RUNNING, SUSPENDED, or UNAVAILABLE. Each instance of the connection is independent and contains its own physical database connections.

Test Pool—Click this button to test a connection from the selected instance of the connection pool. Make sure that Test Reserved Connections or Test Released Connections is selected on the Configuration—>Connections tab (under Advanced Options). Test results are displayed at the top of the pane.

Test pool on all servers—Click this button to test a connection from all instances of the connection pool. Test results are displayed at the top of the pane.