In this post I’m going to share my experiences with tuning slow SQL queries in Java web applications. Following these 5 super-easy steps you’ll have a clear understanding on the performance bottlenecks in sql database and the indexes you’ll need to add to improve performance of your queries.… Read More


The Storm framework is an open-source distributed and fault-tolerant real-time processing system used by many companies including Groupon, Twitter, Alibaba, Klout, etc. It’s the Hadoop of real-time processing and it can be used for real-time analytics, online machine learning and parsing social media stream, just to name a few. This post will help you getting started with Storm via… Read More