Application integration & Middleware

Oracle Forms: FRM-92290 after upgrade to 12.2.1.19

We are frequently involved in Oracle Fusion Middleware Forms and Reports installation or upgrade. For one of our customers, I upgraded Oracle Forms from version 12.2.1.4 to version 12.2.1.19, and this time I got an unusual issue...

Self-Signed SSL Certificate is blocked on Chrome or Edge

If you are using Self-Signed SSL Certificates and recently updated your Google Chrome / Edge browser, you might have come across a new kind of error, i.e: “ERR_SSL_KEY_USAGE_INCOMPATIBLE”. In my case, it happened a few months ago on an Alfresco(…)

How I killed my M-Files instance…and brought it back to life!

I work with M-Files since 1 year now, and to be honest the solution is pretty robust.I had really few issues at “Server level”, but sooner and later while playing sorcerer’s apprentice you finish by breaking something. The inevitable happened,(…)

Apache Kafka and ksqlDB

After two introduction blogs on Apache Kafka (ie. Apache Kafka Concepts by Example and Apache Kafka Consumer Group), it is time to discover the wide ecosystem around it. In this blog post,(…)

Apache httpd Tuning and Monitoring with Zabbix

There is no tuning possible without a proper monitoring in place to measure the impact of any changes. Thus, before trying to tune an Apache httpd server, I will explain how to monitor it with Zabbix. Setup Zabbix Monitoring Apache(…)

Zabbix Web Monitoring

Zabbix allows to create complex web monitoring scenario and gather metrics about it. In this blog post, we will see how to assess that we are able to login to M-Files web application and, to not(…)

How to Improve your JMeter Load Testing?

In my previous blog post, I presented you how to create a load testing scenario based on a recorder. While working on it, I faced small problems that required few fixes which were very repetitive (and(…)

Load Test M-Files Server with JMeter

Creating load test scenario on a web application might look easy: Record a scenario Replay it In practice, it is much more complex than that when you want to manage variables elements like usernames, session IDs, and, in case of(…)

Monitor M-Files with Zabbix

So far, for Zabbix monitoring, I only covered Linux based servers. We can put aside MS-SQL which was monitored via ODBC, thus without any Zabbix agent involved. In this blog post, I will explain you how(…)

Apache Tomcat Monitoring in Prometheus without JMX

In a previous blog post, I explained how to monitor Apache Tomcat with Prometheus with help of JMX exporter. It is not always desirable to use JMX as it requires: An additional service setup (which runs(…)