Exploring Causal Consistency in MongoDB – the article goes through the concepts of Lamport (Logical) Clocks, Operation Time, Cluster Time, and Causally Consistent Sessions that lead to solving the “Read Your Write” consistency violation. …
Tag: causal consistency
A code example of how to break the Read You Write consistency in Mongo. Followed by a review of “majority” reads and writes. This will move the discussion towards Causally Consistent Sessions that I’ll cover next. …
When is Eventual Consistency not sufficient in a Distributed System? This article explores Causal Consistency Guarantees and describes the most popular ones – Read Your Write, Monotonic Reads, Monotonic Writes, Writes Follow Reads. …