Can I use my SAN or NAS with Cassandra?

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Nope. It’s not a good idea. This question is asked a lot. If you ever run into someone that has worked on many Cassandra deployments, they’ll tell you that along with data modeling it’s one of the largest sources of self inflicted wounds. There are many months of my life that I’ve spent having this […]

How does Read-Repair Work in Cassandra?

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Read-repair is lazy mechanism in Cassandra that ensures that the data you request from the database is accurate and consistent. In this post, we’ll discuss how it works and how to tune it for production systems. Some Background Cassandra is a tunably consistent system that prioritizes availability over consistency. This means that servers can go […]

An Argument for Stateful Services

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One of our most common engagements is helping companies retool infrastructure after they’ve reached the limits of their existing technology stack. These customers are looking to increase the resiliency and scale of the services that underpin financial, retail or Internet of Things (IoT) offerings. In these applications the bottleneck is typically the overhead and coordination […]