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Distributed Systems for Practitioners

Datastores for Asynchronous Communication

Explore how datastores like message queues and event logs enable asynchronous communication in distributed systems. Understand FIFO semantics, at-least-once and exactly-once delivery guarantees, and how systems manage message processing and failures.

We'll cover the following...

In the previous lesson we learned that to achieve asynchronous communication, we need to store requests in datastores, and these datastores belong to two main categories: message queues and event logs.

Message Queues

Some commonly used message queues are ...