Kubernetes is one of the core components of modern software architecture. Each of our services has multiple instances which can scale up and down regardless of the time of the day. In a standard production environment, there can be hundreds to billions of those instances. Kubernetes comes to the rescue…

Elasticsearch is a well-known database for searching a large amount of data. It performs blazingly well with search queries, such as full-text search and term-based queries, compared to regular databases. However, maintenance can be a nightmare if you don’t handle dynamic time-series data carefully. Why? First off, let’s talk about…

Trendyol is one of the most popular e-commerce websites in Turkey. At any given time, there are a vast number of customers surfing on the website and apps. This means that hundreds of thousands of requests are generated for our services every second. To ensure high availability and seamless customer…

Java is one of the world’s most widely used and in-demand programming languages. Since it’s arrival in 1995, Java kept improving over time. With its frequent release cycle in the recent years, it requires a bit more effort to keep up with the new releases. We will start with a…

Hello, welcome to this ‘panaromic’ Java guide. You can find easily digestable information on almost all the topics of Java. When I first started my software engineering career, I was looking for an all-in-one Java guide but I couldn’t have found it. Then I prepared one which benefited me a…