Application integration & Middleware

Defining Custom Monitoring Metric in Zabbix

In this blog, we will see how to add custom monitoring metric into Zabbix and, more precisely, get Java Virtual Machine (JVM) garbage collector heap statics. jstat OpenJDK includes an interesting tool to monitor a JVM: jstat. Let’s see what(…)

Elasticsearch Upgrade – What about index compatibility?

Upgrade Elasticsearch is an easy task, I always heard this sentence. Which is correct if you take care about indices and compatibility. At a customer, I had the chance to upgrade an old version of Elasticsearch, today I will share(…)

Elasticsearch queries: Domain Specific Language (DSL)

There are several query languages to query Elasticsearch (e.g. KQL, EQL, DSL, aso), in this blog I will speak about Domain Specific Language (DSL) which is the most flexible and gives access to all Elasticsearch options!(…)

Migrating Monitoring Data from Prometheus to VictoriaMetrics

Now that we know the advantages of VictoriaMetrics over Prometheus (see my previous blog post), we have to find a way to migrate data between the two. If you have the default retention set in Prometheus(…)

JBoss EAP vs. WildFly : What’s the difference?

I heard the following question a lot, what is the difference between JBoss EAP and Widfly? It is a very good question which deserves a detailed answer, that's what I will try to do throw this article!(…)

Prometheus vs VictoriaMetrics

As I went through many monitoring tools recently, I found that Prometheus is a de facto standard. At least from the way it is working. It is even a so strong standard that other Time Series Database (TSDB), like(…)

SNMP Monitoring with Prometheus

It is not always possible to install an exporter on the server or equipment you must monitor, either because you don’t administrate that server, or it cannot run an exporter (ie. device with limited resources). For that purpose, two exporters(…)

WildFly monitoring in Zabbix

Zabbix is a fully featured open-source monitoring solution. I wanted to evaluate how easy it is to monitor an application server like WildFly. Server Installation First component to install is the server which also requires a(…)

Monitoring Short Living Processes with Prometheus

With the way Prometheus is gathering metrics, pull, it is not possible to get metrics from short living processes like batch jobs as: batch jobs can be shorter than scrap_interval batch timings and scrap_interval are not aligned In this blog,(…)

Predict the Future with Prometheus

As I am focusing on monitoring subject, I was wondering if it is possible to set alarm based on prediction instead of simple thresholds. Dynatrace has predictive anomaly detection feature, but in this blog, I want to test if on-premises(…)