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Cloud Deployments

High Availability and Cloudy Problems

Tuesday, September 21, 2010 - 12:00am

VoltDB, like many distributed systems, achieves high availability through redundant processing nodes. VoltDB calls this K-Safety. Essentially, the distributed system can answer any request at at least K+1 servers, so it can tolerate at least K hardware failures. The operator specifies the value of K that they find is the best tradeoff between failure, robustness and cost. Other systems use the terms “replica set” to describe similar functionality.


Let’s talk about EC2-style clouds that provide you with a virtualized server at an hourly cost.

VoltDB in-memory database achieves best-in-class results, running in the cloud, on the YCSB Benchmark

Wednesday, May 7, 2014 - 9:00am

The development team at VoltDB recently ran VoltDB v4.2 against the Yahoo Cloud Serving Benchmark (YCSB), an industry-standard performance benchmark for cloud databases. We ran our test on as realistic a cluster setup as possible: commodity hardware that we could easily book as spot instances on EC2, with features like durability and high availability enabled. And we ran a varied mix of workloads with realistically sized, 1 KB rows, rather than focusing on a specific, overly favorable use case.