Monitoring and collecting performance metrics is an important part of application
development and maintenance. One would be interested in metrics such as memory
usage, response time of the various endpoints, CPU usage, load on the machine,
garbage-collection frequency, and pauses.
Here you will find several tutorials about monitoring WildFly Application Server using several tools such as Prometheus and its Alert Manager. How to display metrics with Grafana, How to capture insights with the ELK Stack and more.
This tutorial has been written for an old version of JBoss AS 5. At the bottom of it, you will find how to monitor JBoss 5 from the JMX-Console. If you are running WildFly or JBoss EAP 7, we recommend the following updated resources: Monitoring Enterprise applications with OpenShift and Prometheus Monitoring WildFly with Prometheus … Read more
The ELK stack (Elasticsearch, Logstash, and Kibana) has been built to deliver actionable insights in real time from almost any type of data. In this tutorial we will learn how to install them and configure its plugins to poll relevant metrics from WildFly or JBoss EAP. The various components in the ELK Stack have been … Read more
In the second tutorial about Container monitoring, we will learn how to monitor a Docker Container image of WildFly with JVisualVM In the first tutorial Monitoring WildFly Container image – Part 1: JConsole we have learnt how to monitor a WildFly image running in a Container using JConsole. Let’s make a short recap: We started … Read more
It is recommended that you check first the following article which will show you how to configure the management native interface on WildFly or JBoss EAP 7: How to use WildFly management API programmatically
This is a short article that discuses how to query WildFly resources using short do-it-yourself guide that will teach you how to monitor your WildFly / JBoss EAP 7 server resources using EJB 3 Timers and the JBoss DMR API.
In this tutorial we will learn more of the jcmd diagnostic command utility which is available since Java 8. We will see how we can gather some useful diagnostic information of a running instance of WildFly. Currently we have already several diagnostic tools for the JVM like jmap, jstack, jstat. As you will see in … Read more
In this tutorial you will learn how you can use the JOL (Java Object Layout) toolbox to monitor the size of Java Objects. JOL is tiny toolbox available in OpenJDK to analyze Java object layout schemes. This tool uses Unsafe, JVMTI, and Serviceability Agent (SA) heavily to decoder the actual object layout, footprint, and references. … Read more
Grafana is a web based framework which lets you create graphs and dashboards from data collected by several various monitoring systems. Grafana specializes in the display and analysis of this data with a lightweight, easy to install, beautiful web interface. In this tutorial we have learnt how to persist some metrics of WildFly into InfluxDB: … Read more
InfluxDB is a time series database. Thanks to its high performance datastore it is used as a backing store for any timestamped data, including DevOps monitoring, application metrics, IoT sensor data, and real-time analytics. In this tutorial we will learn how to use it in Java running on the top of WildFly. As we said, … Read more
WildFly Services are classes which implement the interface org.jboss.msc.service.Service: In order to query for active services from the CLI you can query the service-container as follows: /core-service=service-container:dump-services() As the list can be quite verbose, you can launch the CLI command in combination with the grep command from the shell. Here’s for example how to … Read more
WildFly ships with a powerful Command Line Interface which allows a full management control of the server. If you are using MBeans to capture relevant attributes of the server many options are still available. Besides the UI views which are available in jconsole or jvisualvm, you can use the plain command line to include it … Read more
