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When you start with serverless you will very soon learn/hear about functions cold start (I believe serverless = cloud functions + APIs). A cold start happens when a cloud function is invoked for the first time or after a long time of no invocations. Basically, it takes the server (yes – there are servers!) a little bit longer to get the ...

“I’ve spoken of the shining city all my political life, … in my mind it was a tall, proud city built on rocks stronger than oceans, wind-swept, God-blessed, and teeming with people of all kinds living in harmony and peace; a city with free ports that hummed with commerce and creativity. And if there had to be city walls, the ...

Intro In the first part I explained the theoretical approach to log analysis that I think is best for a sustain engineer. This engineer doesn’t need to analyze logs immediately as they come but instead is focused on a deep analysis of complicated issues. In this second part I’ll show that many search scenarios can be covered with one sophisticated template and ...

Intro I think most software engineers understand the importance of logs. They have become part of software development. If something doesn’t work we try to find the cause in the logs. This could be enough for simple cases when a bug prevents an application from opening a window. You find the issue in the logs, look it up on Google ...

Hello again! Version 4.8 of JMetro Java, JavaFX theme has just been released. We’re getting close to version 5.0 which will be the next major release. Here’s the old styles that have been completely revamped: Date Picker Tree View And the old ones that were tweaked or had changes to CSS structure: Table View List View Combo Box Rating Control ...

This article describes what is CoAP and how to use it in the Internet of things.  CoAP is an IoT protocol that has interesting features specifically designed for constrained devices. There are other IoT protocols useful to build IoT solution as MQTT and so on. Internet of things is nowadays a great reality and one of the most interesting and promising ...

I think it is fair to say that Java EE has gained pretty bad reputation among Java developers. Despite the fact that it has certainly improved on all fronts over the years, even changed home to Eclipse Foundation to become Jakarta EE, its bitter taste is still quite strong. On the other side we have Spring Framework (or to reflect ...

The terms implicit and explicit take some getting used to when you first hear them. When you hear them in terms of programming what exactly does that mean to you? Is one way better than another? Here we’ll go over each of these ideas and provide examples with some design pattern benefits that may come from them. The Terms In ...