The disadvantages of microservices architecture
The microservices architecture, as a successor to the service-oriented architecture style, represents a widely accepted approach to developing complex applications. It is based on a collection of loosely-coupled independent services that communicate with each other using lightweight protocols. The main problem solved by this architectural pattern is the ability to develop and deploy new services […]
Myths and shortcomings of serverless computing
In this article, we’ll demystify one of the main sales tactics used by Cloud providers: serverless & autoscaling features. This article is a continuation of the previous one: “The main disadvantages of Cloud computing that you will notice when it’s already too late”. https://www.josip-pojatina.com/en/the-main-disadvantages-of-cloud-computing-that-you-will-notice-when-its-already-too-late/ where other (pre)sales tricks used by Cloud providers to acquire new […]
The main disadvantages of cloud computing that you will notice when it’s already too late
I started using cloud computing nearly 14 years ago, at the very beginning of cloud computing. After the initial enthusiasm, I quickly noticed the drawbacks of the Cloud, and it puzzled me why no one was writing about it. Although I have already wrote about the downsides of cloud computing in one of my previous […]
How to speedup pooling queries from the Oracle database
This post is a kind of extension of my previous post named “How to index only rows of interest” which can be found on the following link: https://www.josip-pojatina.com/en/how-to-index-only-rows-of-interest/ Having issues with pooling queries are very common in old, SOA based architectural style, where ESB (Enterprise Service Bus) are throwing the same query again and […]
How to get 100% cache hit rate by using Change Data Capture & Redis
In this blog I’ll explain how to get 100% cache hit rate by using CDC (Change Data Capture) technology and Redis cache. There are multiple benefits of having caching layer in front of back-end database system. By fetching data from the cache instead of back-end we are actually free up valuable database resources for […]
Redis performance tuning – Top 10 mistakes
Redis is the most popular Key-value data store and one of the most popular database systems overall. According to Db-engine ranking: https://db-engines.com/en/ranking/key-value+store (You can check the picture below), Redis is on the top position by large margin among Key-values data stores. Amazon DynamoDb on the second place, lags behind Redis more than a twice. […]
StreamSets review – creating real time data pipelines in no time
In this post I’ll try to review StreamSets Data Collector, one of the most popular tools for creating smart data pipelines for streaming, batch and change data capture, which allows you to move data around in a near real time. First I’d like to point out that the whole review is my own personal […]
Apache Ignite – distributed In-memory SQL database
Apache Ignite is one of the very few In-memory SQL compliant distributed databases/data grid among open-source projects. It’s often called “Redis done right” or “Redis on steroid”, because Redis looks primitive and limited when compared with Apache Ignite. Ignite offers great flexibility and lot of features that can easily fit to many use cases. Instead […]
YugabyteDb – distributed SQL database for a new age
Recently I’ve got a chance to try YugabyteDb, one of the new age databases which try to tackle with new requirements such as scalability, resilience, high availability, Cloud/Hybrid readiness and new architecture styles based on microservices. Although Yugabyte is relatively young company, it attracts a lot of attention, not only from architects/developers/admins, but also from […]
How to create a real time machine learning pipeline with StreamSets Transformer
Artificial Intelligence (AI) with its subset ML (Machine learning) is probably one of the hottest topics in IT industry today. Many companies are struggling to implement AI algorithms into data pipelines to make smarter decisions with more or less success. First of all, the AI is a wide topics which requires knowledge of math, statistics, […]