Hikari JFR

A HikariCP MetricsTrackerFactory that generates JFR events.

This project requires Java 11 based on OpenJDK or later and HikariCP 5+.

Usage

<dependency>
  <groupId>com.github.marschall</groupId>
  <artifactId>hikari-jfr</artifactId>
  <version>1.0.1</version>
</dependency>

HikariConfig hikariConfig = ...
hikariConfig.setMetricsTrackerFactory(new JfrMetricsTrackerFactory());

Caveats

The duration of the events is always 0, instead the duration is stored in an additonal column.

Events

The following events are supported

Connection Created

A physical connection was created. It has the following attributes

Pool Name

The name of the connection pool

Creation Time

The time it took to create a physical connection

Connection Acquired

A connection was acquired from the pool. It has the following attributes

Pool Name

The name of the connection pool

Acquisition Time

The time it took to acquire a connection from the pool

Connection Borrowed

A connection was borrowed from the pool. It has the following attributes

Pool Name

The name of the connection pool

Borrowed Time

The time the connection was borrowed from the pool

Connection Timeout

A could not be acquired in the request time from the pool. It has the following attributes

Pool Name

The name of the connection pool