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Prometheus Listener for JMeter

Apache JMeter Backend Listener implementation for Prometheus metrics exporting. Both pull-based and push-based models are supported through different implementations.

Installation

Download the latest release or build your own from the source code. Then put jmeter-prometheus-listener-x.x.x.jar to JMETER_HOME/lib/ext directory.

Usage

Add Listener->Backend Listener to your Test Plan.
In the Backend Listener implementation combobox select com.github.kolesnikovm.PrometheusListener for pull-based model or com.github.kolesnikovm.PrometheusPusher for push-based one.
Edit parameters to your taste.

Parameters

These parameters are set in Backend Listener element. All parameters are required. You can also add custom parameters, that will be treated as labels and added to each metric.

Param	Type	Description
testName	String	Common label for all metrics in your test
runId	String	Common label for all metrics in your test
exporterPort	int	Port for exposing metrics, path `/metrics` <br/> Only for `com.github.kolesnikovm.PrometheusListener` implementation
prometheusURL	String	Prometheus URL for pushing metrics <br/> Only for `com.github.kolesnikovm.PrometheusPusher` implementation
samplersRegExp	String	Regular expression for filtering sample results
sloLevels	String	Buckets for `jmeter_response_time_histogram`. Semicolon delimited

Properties

Property	Default	Comment
prometheus.collect_jvm	false	Boolean parameter for enabling JVM metrics collection
prometheus.collect_assertions	false	Boolean parameter for enabling assertion results collection
prometheus.quantiles_age	10	Max age in seconds for Summary collectors' quantiles
prometheus.log_errors	false	Boolean parameter for enabling extended error logging
prometheus.push_interval	5	Metrics push interval for `com.github.kolesnikovm.PrometheusPusher` implementation

Metrics

Every metric has default label set testName, runId, nodeName and also may have some additional labels. Check the table below for details on metrics and their specific labels.

Metric	Type	Labels	Comment
jmeter_active_threads	Gauge
jmeter_running_threads	Gauge	threadGroup
jmeter_requests	Counter	requestName, requestStatus, responseCode, responseMessage, isTransaction
jmeter_response_time	Summary	requestName, requestStatus, responseCode, responseMessage, isTransaction	Unit: milliseconds<br/> Quantiles: 0.9, 0.95, 0.99
jmeter_response_time_histogram	Histogram	requestName, requestStatus, responseCode, responseMessage, isTransaction	Unit: milliseconds
jmeter_latency	Summary	requestName, requestStatus, responseCode, responseMessage, isTransaction	Unit: milliseconds<br/> Quantiles: 0.9, 0.95, 0.99
jmeter_request_size	Summary	requestName, requestDirection, isTransaction	Unit: bytes
jmeter_assertion_results	Counter	requestName, failureMessage

Custom metrics

Also, you can create your own custom collectors. See the documentation on Prometheus JVM Client.

Creation

Custom collector creation

Usage

Custom collector usage

Dependency

Plugin is hosted on Maven Central. You can find dependency here. Example use with jmeter-maven-plugin:

<jmeterExtensions>
    <artifact>io.github.kolesnikovm:jmeter-prometheus-listener:x.x.x</artifact>
</jmeterExtensions>

Building

To build, simply run:

gradle clean fatJar