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Connection Pools: C3P0Connection Pools: C3P0
Connection Pools: C3P0

Connection Pools: C3P0

Application server method of pooling and sharing connections to a database.

Extension
Free trialDocumentation
Quickly glance over the status of your C3P0 connection pools accross your whole environment with the included dashboard with the extension.Get insights into a specific connection pool thanks to the granularity of the metrics and their segregation into the new generic entities generated by the extension automatically.
  • Product information
  • Release notes

Overview

Several built-in OneAgent extensions provide insight into 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, Red Hat JBoss and Wildfly, and C3P0.

Use cases

This extension collects connection pool performance, usage and availability metrics for C3P0.

Prerequisites:

  • Java process that uses C3P0 connection pools that runs on a supported Linux or Windows operating system.
  • OneAgent version 1.275+
  • Dynatrace version 1.275+

To get metric insight:

  1. Install OneAgent on the virtual machine or server of your JBoss process.
  2. Activate the OneAgent feature Java Metric Extensions 2.0 (JMX).
  3. Select in this same tile Add to environment to configure the extension.
  4. Open the C3P0 Connection Pool Overview dashboard.
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By Dynatrace
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Extension content

Content typeNumber of items included
metric metadata
9
screen layout
2
document dashboard
1
screen chart groups
4
list screen layout
1
screen entities lists
1
screen injections
4
screen metric tables
2
generic relationship
1
screen actions
2
dashboards
1
generic type
1
metric query
2
screen dql table
2

Feature sets

Below is a complete list of the feature sets provided in this version. To ensure a good fit for your needs, individual feature sets can be activated and deactivated by your administrator during configuration.

Feature setsNumber of metrics included
Metric nameMetric keyDescriptionUnit
Max Pool Sizec3p0.connectionPool.maxPoolSize-Count
Num Connectionsc3p0.connectionPool.numConnections-Count
Num Busy Connectionsc3p0.connectionPool.numBusyConnections-Count
Num Unclosed Orphaned Connectionsc3p0.connectionPool.numUnclosedOrphanedConnections-Count
Metric nameMetric keyDescriptionUnit
Num Idle Connectionsc3p0.connectionPool.numIdleConnections-Count
Num Active threadsc3p0.connectionPool.threadPoolNumActiveThreads-Count
Thread Pool Sizec3p0.connectionPool.threadPoolSize-Count

Full version history

To have more information on how to install the downloaded package, please follow the instructions on this page.
ReleaseDate

Full version history

  • New Platform/Gen3 dashboard bundled with extension
  • Added DQL support for Platform/Gen3 screens
  • Enriched entities with dt.security_context attribute

Full version history

First version of the extension. It includes:

  • 9 metrics, 2 of which are calculated, split up into 2 feature sets
  • 1 generic entity type (c3p0 connection pool)
  • 1 relationship between the connection pool and the process
  • Screen for the generic type and injections for the host and process group instance
  • Overview dashboard
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