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RabbitMQ Messaging & Async Systems · Lesson

Quorum Queues for Modern HA

Learn why quorum queues, based on the Raft consensus algorithm, are the recommended replacement for mirrored queues when building highly available RabbitMQ clusters.

The Limits of Mirrored Queues

Classic mirrored queues replicate data but suffer from split-brain risks and unpredictable failover behavior under network partitions.

RabbitMQ now recommends quorum queues instead.

What Is a Quorum Queue?

A quorum queue is a replicated queue built on the Raft consensus algorithm. A majority of replicas must agree before a message is considered committed.

All lessons in this course

  1. RabbitMQ Clustering Concepts
  2. Setting Up a Clustered Environment
  3. Mirrored Queues for HA
  4. Quorum Queues for Modern HA
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