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Open-sourcing a 10x reduction in Apache Cassandra tail latency
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Open-sourcing a 10x reduction in Apache Cassandra tail latency

At Instagram, we have one of the world’s largest deployments of the Apache Cassandra database. We began using Cassandra in 2012 to replace Redis and support product use cases like fraud detection, Feed, and the Direct inbox. At first we ran Cassandra clusters in an AWS environment, but migrated them over to Facebook’s infrastructure when…