Reading time ~25 minutes I need a document database. Why? There are areas in my problem generating (How to calculate 17 billion similarities) pet project cookit that are just asking for a document modelling approach. Most people will say that this is a straightforward problem to solve:Slap on MongoDB, and you are ready to go. It is NOT a good idea.Get email notifications about new posts: This article started as a way to structurize the comparison process but grew a bit more ( just like my previous ...

Reading time ~7 minutes This article is Part 3 in a 3-Part Series. Part 1 - Refactoring to Data Driven TestsPart 2 - How to get data for Data-Driven Tests?Part 3 - This Article As promised here and here, this will be tips, tricks, and good practices for data-driven tests. If You want to know more about data-driven testing see my previousposts on this topic. Here we go. I will be converting this series into an ebook with additional source code and examples. If You want to get it please subscribe:G...

Reading time ~7 minutes I am not a big fan of writing tests. I like having them, but I find writing them to be boring. That said, retesting manually is even more annoying, so I write tests. The thought that there has to be a better way, never passed. I tried a few approaches. After some experimentation, I think I have the answer - DDT (Data Driven Testing) Before we dig into what Data Driven Tests are, let’s look at some standard, non-DDT tests.What we will be testing? There is a fragile line for cod...

Patoarchitekci Uwaga, rzucamy mięsem, czyli lekki podcast o niby poważnym temacie jaki jest nowoczesna architektura w IT. O podcaście Słuchaj na:YouTubeSpotifyAnchorKontakt 2019 © Szymon Warda & Łukasz Kałużny2019, Aug 12     Odcinek poświęcony robieniu architektura w czasach Agile. Czy można w ogóle robić dobrą architekturę, kiedy wszystko jest niby zwinne? Ciekawe linki i inne znaleziska z tego odcinka:Człowiek vs Komputer10x engineersWhat is a 1x Engineer?It’s 2019, and one third of businesses ...

Reading time ~7 minutes I will be back to the series about data modeling in noSQL databases, but for now, I want to note down a few arguments that are still hot after an interesting discussion with a friend. The talk boiled down to a simple question:Should I use a service mesh or use a bare bones Kubernetes? I know how strange the combination of bare-bones and Kubernetes sounds, but this is the world we are living in :). I’m standing firmly on the position that service mesh is the only way to go. Her...

Reading time ~6 minutes Querying hierarchical data is always where the big boys of SQL shined. And I really mean the big boys part since only Oracle, and Microsoft SQL Server have support for CTE (Common Table Expressions) that allow for executing one SQL statement what will fetch a subtree. There are data modeling approaches that allow for doing hierarchical data reads with noSQL databases and databases without support for CTE. The most common and obvious example of hierarchical data is the family tr...

Reading time ~3 minutes This article is Part 2 in a 2-Part Series. Part 1 - The missing Azure Functions documentationPart 2 - This Article As I wrote in the previous post there are two ways to run precompiled .NET code in Azure Functions - .NET 4.6.x or .NET Core. Why did I decide to go with the old .NET runtime? For the current moment, F# on .NET Core does not support type providers (there is a workaround, but I didn’t want to go with it for the current moment). I went to work thinking that it will...

Reading time ~10 minutes This article is Part 2 in a 2-Part Series. Part 1 - What is the simplest database?Part 2 - This Article The previous post laid out the most minimum requirements for something to be called a database. While they may be too bare bones for many, there are a lot of databases that don’t fulfill even half of them, and this isn’t stopping from using them on a daily basis. The last time I’ve looked at files, this time something a bit more complex - key-value databases. The idea be...

Reading time ~5 minutes Configuration as code movement isn’t anything new and is here to stay. I haven’t had time to actually do a from zero to the desired state configuration script until a few weeks ago. Below are my thoughts after three weeks with PowerShell Desired State Configuration. What I wanted to do First, let me describe the goal I’ve set before myself. I wanted to write a script that would go from a clean Windows machine to a fully configured TeamCity server with SQL Server storage and t...

Reading time ~16 minutes While I’m working on the next angle on how to speed up calculating similarities I started investigating how to get better telemetry from cookit. Getting telemetry is easy - making sense of it is the hard part. This also brought another pain point of current setup - logging and monitoring. Since cookit is my pet, nonprofit project it was time to do something. There is a comparison table at the end, and what I’ve choose.The current state of logging and monitoringRequirementsThe ...