Default resource limits
Amazon MQ for RabbitMQ supports configuring the broker resource limits from RabbitMQ 4 onwards. When you create a broker, Amazon MQ automatically applies default values to these resource limits. These defaults act as guardrails to protect your broker availability while accommodating common customer usage patterns. You can customize your broker behavior by changing the limit configuration values to better match your specific workload requirements.
Before making changes, please note:
Important
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Configuration changes can impact broker performance and availability
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Understand the impact before changing any default configuration options
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Test configuration changes in non-production environments first
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Monitor broker health after applying changes
Important
Default values and supported ranges for these configurations vary by RabbitMQ version, instance type, and broker deployment mode.
Important
Note: Associating or creating a broker with configuration values outside the supported range will result in an error response.
The default resource limits applied for RabbitMQ 4.2 brokers are
Default resource limits
Default values for single instance brokers
| Instance type | Connections per Node | Channels per Node | Consumers per channel | Queues | vhosts | Shovels | Exchanges | Message size in Bytes |
|---|---|---|---|---|---|---|---|---|
| mq.m7g.medium | 100 | 500 | 10 | 500 | 10 | 30 | 500 | 524288 |
| mq.m7g.large | 1,500 | 4,500 | 10 | 1,000 | 50 | 50 | 1,000 | 524288 |
| mq.m7g.xlarge | 3,000 | 9,000 | 10 | 2,000 | 100 | 100 | 2,000 | 524288 |
| mq.m7g.2xlarge | 6,000 | 18,000 | 10 | 4,000 | 150 | 200 | 4,000 | 524288 |
| mq.m7g.4xlarge | 12,000 | 36,000 | 10 | 8,000 | 200 | 400 | 8,000 | 524288 |
| mq.m7g.8xlarge | 24,000 | 72,000 | 10 | 16,000 | 250 | 800 | 16,000 | 524288 |
| mq.m7g.12xlarge | 36,000 | 108,000 | 10 | 24,000 | 300 | 1,200 | 24,000 | 524288 |
| mq.m7g.16xlarge | 48,000 | 144,000 | 10 | 32,000 | 350 | 1,600 | 32,000 | 524288 |
Default values for cluster brokers
| Instance type | Connections per Node | Channels per Node | Consumers per channel | Queues | vhosts | Shovels | Exchanges | Message size in Bytes |
|---|---|---|---|---|---|---|---|---|
| mq.m7g.medium | 100 | 300 | 10 | 100 | 10 | 10 | 100 | 524288 |
| mq.m7g.large | 500 | 1500 | 10 | 1,000 | 50 | 30 | 1,000 | 524288 |
| mq.m7g.xlarge | 1000 | 3000 | 10 | 2,000 | 100 | 60 | 2,000 | 524288 |
| mq.m7g.2xlarge | 2000 | 6000 | 10 | 4,000 | 150 | 120 | 4,000 | 524288 |
| mq.m7g.4xlarge | 4000 | 12,000 | 10 | 8,000 | 200 | 240 | 8,000 | 524288 |
| mq.m7g.8xlarge | 8000 | 24,000 | 10 | 16,000 | 250 | 480 | 16,000 | 524288 |
| mq.m7g.12xlarge | 12000 | 36,000 | 10 | 24,000 | 300 | 720 | 24000 | 524288 |
| mq.m7g.16xlarge | 16,000 | 48,000 | 10 | 32,000 | 350 | 960 | 32,000 | 524288 |
