Message Queue Patterns
Lesson 1 of 10
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Producers
Broker parent
Consumers
Producer API
emit
Creates
job-42
and events.
Broker
durable boundary
Queue
empty
Stream · append-only
empty
Pending Entries List (PEL)
empty
Worker A
consumer
status
idle
Worker B
consumer
status
idle
Worker C
consumer
status
idle
Retry control
claim
idle timeout → claim
Dead Letter Queue
isolate
empty