This document discusses different approaches to implementing error retries with exponential backoff when using RabbitMQ. It begins with motivation for the problem and an overview of RabbitMQ terminology. Then it demonstrates three approaches: using pure RabbitMQ configuration with no code; using the Spring AMQP module's ExponentialBackoffPolicy; and using the RabbitMQ Delayed Message Plugin which has some limitations. The document provides code examples and comparisons of the different approaches.

1. Error Retries with
Exponential Backoff
Using RabbitMQ
2020-02-25

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Agenda
 Motivation
 RabbitMQ terminology
 Three different approaches to the same issue (demo)
 Q&A
Repo link:
https://bitbucket.org/serhiizem/rmq-demo

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Direct inter-process communication
reduces total system availability

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A system communicating through an intermediary has finer availability
Participants are no longer obliged to wait
for the response from the counterparty

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A system communicating through an intermediary has finer availability
Participants are no longer obliged to wait
for the response from the counterparty

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The AMQP protocol
AMQP (Advanced Message Queuing Protocol) is a messaging protocol that enables conforming client applications to communicate with
conforming messaging middleware brokers.

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Looking into the RabbitMQ implementation of AMQP

8. Exponential backoff using pure RMQ configuration (no Java code)

9. The configuration is still flexible and can be extended

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Exponential backoff using the Spring
AMQP module and its
ExponentialBackoffPolicy

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Exponential backoff using the Spring
AMQP module and its
ExponentialBackoffPolicy

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RabbitMQ Delayed Message Plugin
Plugin is considered experimental, but it can solve
the problem of exponential backoff quite well.
However, there are few limitations:
• There is no replication of delayed messages
• Delay is not persisted
• There is a limit for the number of messages

13. Thank You!