When is Stale Data OK? An Epic Read on Follower Reads

In this post we’re going to talk about one of the techniques that can be used in CockroachDB for getting good performance from databases accessed from multiple geographical regions: follower reads. These are operations presenting a slightly stale view of data, which can be served with local latencies from different regions. By default, CockroachDB offers strongly-consistent reads. Our consistency model can be summarized as “no stale reads”, meaning that database reads will return the most up-to-...

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