This supervisor is responsible for adjusting the amount of consumers. It listens to the channel monitor and determines if the current consumers can handle the events. If the super… See more

In the previous section, the supervisor improves the throughput by making more consumers. However, if the cost is a concern, using more consumers obviously is infeasible… See more

The thread delegate pattern is a useful pattern not only in the event-driven architecture but the other types of the system design. The pattern has two purposes: 1… See more

When event consumer encounter an error while processing, it may not fix the error due to many reasons like the malformed event, transaction conflicts, etc. Hence, the consumer … See more