Connection Pools WebSphere Liberty extension
- Latest Dynatrace
- Extension
- Published Oct 27, 2025
Collect the connection pool performance, usage and availability metrics for Websphere Liberty.
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Overview
Connection Pools allow you to monitor connection pool performance and identify issues such as connection leaks.
Several built-in OneAgent extensions provide an insight into the connection pool performance and issues such as connection leaks. The extensions cover the following technologies: Apache Tomcat, Oracle WebLogic, IBM WebSphere Application Server, IBM WebSphere Liberty, and Red Hat JBoss and Wildfly.
Use cases
This extension collects connection pool performance, usage and availability metrics for Websphere Liberty.
Compatibility information
- Websphere process that runs on a supported Linux or Windows operating system.
- OneAgent version 1.273+
- Dynatrace version 1.273+
Activation and setup
- Install OneAgent on the virtual machine or server of your Websphere process.
- Activate the OneAgent feature
Java Metric Extensions 2.0 (JMX). - Select in this same tile Add to environment to configure the extension.
- Open the Liberty Connection Pool Overview dashboard.
Feature sets
When activating your extension using monitoring configuration, you can limit monitoring to one of the feature sets. To work properly the extension has to collect at least one metric after the activation.
In highly segmented networks, feature sets can reflect the segments of your environment. Then, when you create a monitoring configuration, you can select a feature set and a corresponding ActiveGate group that can connect to this particular segment.
All metrics that aren't categorized into any feature set are considered to be the default and are always reported.
A metric inherits the feature set of a subgroup, which in turn inherits the feature set of a group. Also, the feature set defined on the metric level overrides the feature set defined on the subgroup level, which in turn overrides the feature set defined on the group level.
Timing
| Metric name | Metric key | Description |
|---|---|---|
| In use time | liberty.connectionPool.inUseTime | — |
| Wait time | liberty.connectionPool.waitTime | — |
Connection count
| Metric name | Metric key | Description |
|---|---|---|
| Managed connections | liberty.connectionPool.managedConnectionCount | — |
| In use connections | liberty.connectionPool.connectionHandleCount | — |
| Free connections | liberty.connectionPool.freeConnectionCount | — |
