Month: November 2023

Istio provides strong identities for workloads running in the mesh by default. 

Istio control plane (Istiod) and Istio agents (that run on each pod, within the Envoy proxy container) work together to sign, distribute, and rotate X.509 certificates to workloads (see Fig.A).

Welcome to the Distributed Systems series. In this article, we will learn and understand what the CAP theorem is. CAP stands for consistency, availability, and partition tolerance. When we talk about the CAP theorem, we mostly talk about distributed systems. First, let’s understand what a distributed system Is. A distributed system is a system that is made up of multiple processes that run on a single machine or multiple machines. In this lecture, we will learn about the CAP theorem from a distributed system perspective using a simple database analogy.

What Is the CAP Theorem?

CAP theorem states that in a Distributed System, while network partition occurs, we can only choose either consistency or availability. This was coined by Eric Brewer to understand distributed systems. CAP stands for consistency, availability, and partition tolerance. 

In the world of Unix-like operating systems, the command line is a powerful and efficient way to interact with your computer. Over time, as you work with your system, you might wonder: "How can I use a kind of history command to recall past commands within the interactivity of a bash script?" 

I am seeking a script that offers a consistent interactive environment, enabling me as a user to navigate through and execute previous commands seamlessly using arrow keys. The desired functionality involves the ability to scroll through a history of commands on the same input line, similar to the experience in the Bash shell.

We can agree decoupling is a good practice that simplifies the code and the maintainability of the project. 

A common way of decoupling the code is to divide the responsibilities into different layers. A very common division is: 

For the last several days, I’ve been working on one of my pet projects for my portfolio. To be precise, I have been creating an analytical dashboard for an airline company. Finding suitable tools turned out to be a challenge. I wanted to use Next.js in the stack, and my goal was to make sure any user could understand the presented statistical data and, secondly, interactively explore the information. So, in this tutorial, I will cut my way through constructing the dashboard and creating a pivot table and charts in the Next.js app on the example of an airline company. Hopefully, it will save you time :)

Prerequisites

Here, I would like to share all the things I did to prepare for creating the essential statistics. And we will start with…

My post about my 6-month job search generated some attention and conversation. The comments helped me clarify some of the more specific lessons I’ve learned recently or that I knew but were reinforced by the experience. After taking time to organize them into a somewhat coherent structure, I’m ready to share. Here are the first lessons on the list.

As always, if you have opinions, corrections, or experiences you want to share, please do so in the comments below.

As of 2022, the global market for digital twins was valued at $11.12 billion — and experts estimate an impressive annual growth rate of 37.5% from 2023 to 2030.

Digital twins help connect the physical and virtual worlds, allowing workers to timely identify when things need fixing, work more efficiently, and create less waste. So, embracing the potential of digital twins is a crucial move as the logistics sector steps into the new Industry 5.0 era.

Now that I’m free to share the news that I’ve landed at Kentik — a visionary company filled by an amazing group of folks who believe that the value of their team goes far beyond what they might offer to the business — I wanted to take a minute to reflect on my job search, comment on the state of the job market, and share some lessons I’ve picked up along the way.

Let me be clear — I’m under no illusion that the world has breathlessly awaited the thoughts of a middle-aged white dude and will now, graced with my heretofore-undiscovered wisdom, be a truly better place. People with far more knowledge, experience, and expertise have written and spoken on this topic, with data and examples that are far more eloquent and compelling than anything I could hope to share.