Capability Comparison
Last updated:2026-01-04 14:53:46
TDMQ for RabbitMQ Serverless Edition of Tencent Cloud adopts an innovative storage-compute separation architecture, and it is fully compatible with the AMQP 0-9-1 protocol and all components and concepts of open-source RabbitMQ. Through architecture upgrades, it effectively addresses common stability issues seen in the open-source version, such as split-brain and message backlogs. Serverless Edition provides strengths, such as stability, security, and flexible scaling.
After comparison, the detailed differences between TDMQ for RabbitMQ Serverless Edition and the original Managed Edition series are as follows:
Architecture and Availability Comparison
Type | Comparison Item | Managed Edition | Serverless Edition |
Underlying architecture | Open-source compatibility | Compatible with open-source RabbitMQ. | Compatible with open-source RabbitMQ. |
| Deployment architecture | Exclusive cluster (exclusive physical cluster). | Exclusive computing resources and shared storage resources. |
| Storage elasticity | Limited storage space. It is billed based on reserved storage space. | Unlimited quota. No reservation is required. It is billed based on usage. |
| Compute elasticity | Horizontally scale out the number of nodes. Vertically scale out the node specifications. | Horizontally scale out the TPS specifications. Automatic elastic TPS will be supported in the future. |
High availability | Disaster recovery capability | Multi-node clusters support cross-AZ disaster recovery deployment. Single-node clusters do not support cross-AZ disaster recovery deployment. | Cross-AZ disaster recovery is supported by default. |
| Data persistence | Multi-node clusters support mirrored queues and multi-replica synchronization. | Data is persisted with a three-replica configuration. |
| Service availability (SLA) | Service availability guaranteed by multi-node clusters: 99.95%. Storage reliability: 99.9999999% | Service availability: 99.95% Storage reliability: 99.9999999% |
Feature Comparison
Feature Type | Comparison Item | Managed Edition | Serverless Edition |
Observability | Monitoring metric | 5 dimensions and over 50 monitoring metrics. | 4 dimensions and over 90 monitoring metrics. |
| Intelligent inspection | 21 core inspection metrics are supported. | Not supported. |
| Prometheus monitoring | Supported. | Not supported. |
Troubleshooting | Message query | Supported. | Supported. |
| Message trace | Not supported. | Coming soon. Stay tuned. |
Related to messages and queues | Delayed message | It is achieved by enabling the delayed message plugin. | Supported. |
| Quorum queue | Supported. | Not supported. |
| Priority Queue | Supported. | Not supported. |
Others | Public network access | Supported. | Coming soon. Stay tuned. |
| Access to the open-source console | Supported. | Not supported. |
Use Limit Comparison
Limit Type | Limit | Managed Edition | Serverless Edition |
Resource use limits | Number of vhosts per cluster | 20 | 250 |
| Maximum number of connections per cluster | 10,000 | |
| Maximum number of queues | Upper limit per vhost: 1,000. | Upper limit per cluster: 6,000. |
| Maximum number of exchanges | Upper limit per vhost: 1,000. | Upper limit per cluster: 6,000. |
| Maximum number of channels per connection | 1,024 | 1,024 |
Message-related limits | Message size | 128 MB | Pro Edition: 40 MB. Platinum Edition will support larger values. |
| Maximum delay time for delayed messages | There is no limit theoretically. | 30 days. |
| Message retention period | There is no limit theoretically. | Pro Edition: 3 days. Platinum Edition will support larger values. |
| Message trace retention period | Message trace is not supported. | Pro Edition: 3 days. Platinum Edition will support larger values. |
| Maximum number of reentry times for messages | There is no limit theoretically. | Pro Edition: 16 times. Platinum Edition will support larger values. |
For more detailed use limits on the clusters and characters, see Use Limits of Managed Edition and Use Limits of Serverless Edition.
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