Quotas in Amazon MQ

This topic lists quotas within Amazon MQ. Many of the following quotas can be changed for specific AWS accounts. To request an increase for a limit, see AWS Service Quotas in the Amazon Web Services General Reference. Updated limits will not be visible even after the limit increase has been applied. For more information on viewing current connection limits in Amazon CloudWatch, see Monitoring Amazon MQ brokers using Amazon CloudWatch.

Brokers

The following table lists quotas related to Amazon MQ brokers.

Limit	Description
Broker name	Must be unique in your AWS account. Must be 1-50 characters long. Must contain only characters specified in the ASCII Printable Character Set. Can contain only alphanumeric characters, dashes, periods, underscores, and tildes (- . _ ~).
Number of brokers, per region	50
Wire-level connections per protocol for smaller broker	Important Does not apply to RabbitMQ brokers. 300 for mq.*.micro instance type brokers.
Wire-level connections per protocol for larger broker	Important Does not apply to RabbitMQ brokers. 2,000 for mq.*.*large instance type brokers.
Security groups per broker	5
ActiveMQ destinations (queues, and topics) monitored in CloudWatch	CloudWatch monitors only the first 1000 destinations.
RabbitMQ destinations (queues) monitored in CloudWatch	CloudWatch monitors only the first 500 destinations, ordered by number of consumers.
Tags per broker	50

Configurations

The following table lists quotas related to Amazon MQ configurations.

Important

Does not apply to RabbitMQ brokers.

Limit	Description
Configuration name	Must be 1-150 characters long. Must contain only characters specified in the ASCII Printable Character Set. Can contain only alphanumeric characters, dashes, periods, underscores, and tildes (- . _ ~).
Revisions per configuration	300

Users

The following table lists quotas related to Amazon MQ ActiveMQ broker users.

Important

Does not apply to RabbitMQ brokers.

Limit	Description
Username	Must be 1-100 characters long. Must contain only characters specified in the ASCII Printable Character Set. Can contain only alphanumeric characters, dashes, periods, underscores, and tildes (- . _ ~). Must not contain commas (,).
Password	Must be 12-250 characters long. Must contain only characters specified in the ASCII Printable Character Set. Must contain at least 4 unique characters. Must not contain commas (,).
Users per broker (simple auth)	250
Groups per user (simple auth)	20

Data Storage

The following table lists quotas related to Amazon MQ data storage.

Limit	Description
Storage capacity per smaller broker	20 GB for mq.*.micro instance type brokers. For more information regarding Amazon MQ instance types, see Broker instance types.
Storage capacity per larger broker	200 GB for mq.*.*large instance type brokers. For more information regarding Amazon MQ instance types, see Broker instance types.
Job scheduler usage limit per broker backed by Amazon EBS	Important Does not apply to RabbitMQ brokers. 50 GB. For more information about job scheduler usage, see JobSchedulerUsage in the Apache ActiveMQ API Documentation.
Temporary storage capacity per smaller broker.	Important Does not apply to RabbitMQ brokers. 5 GB for mq.*.micro instance type brokers.
Temporary storage capacity per larger broker.	Important Does not apply to RabbitMQ brokers. 50 GB for mq.*.*large instance type brokers.

API Throttling

The following throttling quotas are aggregated per AWS account, across all Amazon MQ APIs to maintain service bandwidth. For more information about Amazon MQ APIs, see the Amazon MQ REST API Reference.

Important

These quotas don't apply to Amazon MQ for ActiveMQ or Amazon MQ for RabbitMQ broker messaging APIs. For example, Amazon MQ doesn't throttle the sending or receiving of messages.

API burst limit	API rate limit
100	15