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A collection of 1475 posts
Apache Cassandra, Part 5: Data Modelling with Examples
9/7/2018
Data modelling in Cassandra revolves around two goals:Spread data evenly among partitions.A read query should (ideally) hit only a single partition.Often you will find yourself in scenarios, and as yo...
Apache Cassandra, Part 4: Data Flow and Core Concepts
This series of posts present an introduction to Apache Cassandra. It discusses key Cassandra features, its core concepts, how it works under the hood, how it is different from other data stores, data ...
Apache Cassandra, Part 3: Row vs Column Stores
Row vs Column StoresWhen talking about data stores it is helpful to keep this image in mind.A disk read is an expensive operation and should be used in minimum to ensure performance of a data system. ...
Apache Cassandra, Part 2: Cassandra vs MongoDB
Apache Cassandra, Part 1: Introduction and Key Features
Apache Cassandra, Part 6: Time Series Modelling
Scaling Time Series Data Storage — Part I
Scaling Time Series Data Storage — Part Iby Ketan Duvedi, Jinhua Li, Dhruv Garg, Philip Fisher-OgdenIntroductionThe growth of internet connected devices has led to a vast amount of easily accessible t...
Eye or the Tiger: Benchmarking Cassandra vs. TimescaleDB for time-series data
How a 5 node TimescaleDB cluster outperforms 30 Cassandra nodes, with higher inserts, up to 5800x faster queries, 10% the cost, a more flexible data model, and of course, full SQL.? It’s the eye or th...