Wide row data modelling with Apache Cassandra

This is a 5 min readI have always been intrigued by the performance claims of Apache cassandra. So, I wanted to put the whole “wide rows” and the performance edge claims that wide-row data model said to offer to the test. Rumour has it, Facebook hired ex-Amazon engineers who wrote Dynamo  to build cassandra. Anyways, a sound starting point is to… Continue reading

How does the Log-Structured-Merge-Tree work?

This is a 5 min readIf you are wondering why should you care about LSM Tree, In one of my previous posts Art of choosing a datastore , I have briefly touched upon LSM-Trees. But this writeup is the best out there if you want to learn the inner workings of a LSM-Tree. How does the Log-Structured-Merge-Tree work? This was Quora answer by David Jeske…. Continue reading