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John Hugg, Author at VoltDB
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VoltDB / Articles posted by John Hugg

Author: John Hugg

John is a founding engineer at VoltDB. Now at his third database and second distributed systems startup, he currently splits his time between making VoltDB better and telling people about it.

VoltDB hired Kyle Kingsbury, creator of the Jepsen Tests, to build a new, stronger, Jepsen test especially for VoltDB. We promise strong serializability in a distributed database, a stronger promise than almost any other system, and we’ve been working with Kingsbury to validate that promise. What...

In my previous post, I described four applications (three implemented, one an example) that require, or at least strongly benefit from, strong ACID transactions. With that out of the way, we can now get to the fun bits. Today’s claim: most databases that claim to be...

There’s a lot of discussion about the value of consistency and ACID transactions in data management. I thought it would be useful to describe three fully implemented enterprise-class applications, and one example application, that need ACID transactions. These descriptions should make an abstract concept a...

Processing big data effectively often requires multiple database engines, each specialized to a purpose. Databases that are very good at event-oriented real-time processing are likely not good at batch analytics against large volumes. Here’s a quick look at another of the Fast Data recipes from...

Introduction Last year we published YCSB benchmarks that compared IBM SoftLayer with Amazon Web Services. This generated a lot of interest from lots of different folks in the cloud community. There was so much interest we decided to do it again with more platforms.We reached out...

The ACID properties and the CAP theorem are two important concepts in data management and distributed systems. It's unfortunate that in both acronyms the "C" stands for "Consistency," but actually means completely different things. What follows is a primer on the two concepts and an...