> For the complete documentation index, see [llms.txt](https://mamawhocode.gitbook.io/aws/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mamawhocode.gitbook.io/aws/services/integration/mq.md).

# MQ

message broker service

[Document](https://docs.aws.amazon.com/amazon-mq/index.html?nc2=type_a) | [Migration guide](https://docs.aws.amazon.com/amazon-mq/latest/migration-guide/concept-chapter-about.html)

## Overview

* managed message broker service for
  * RabbitMQ
  * ActiveMQ
  * IBM MQ
* It replaces natvie SNS and SQS, so have both feature: queue & topic

### Why MQ?

* SNS and SQS are cloud-native
* On-premises using: MQTT, AMQP, STOMP, Openwire, WSS
* when migrate to the cloud, instead of re-engineering the app to use SNS or SQS, we can use Amazon MQ

### Draw back

* Does not scale as much as SNS/SQS
* Amazon MQ run on servers, can run Multi-AZ for failover

## Fail-over

* Set up Multi-AZ for fail-over, using a Standby server & Amazon EFS for storage. 

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