QPS limits
This topic describes the call limits for each server-side API of ApsaraMQ for MQTT.
ApsaraMQ for MQTT is subject to queries per second (QPS) limits. These limits fall into two categories:
- API QPS limits. If you exceed this limit, your requests are throttled. Only traffic within this limit is guaranteed by the Service Level Agreement (SLA).
- QPS limits for a single source IP address. If you exceed this limit, the IP address is blocked.
The specific limits are shown in the following table.
| API | API QPS limit | QPS limit per source IP address |
| ApplyToken | 500 | 300 |
| QueryToken | 100 | 300 |
| RevokeToken | 5 | 300 |
| CreateGroupId | 10 | 300 |
| DeleteGroupId | 10 | 300 |
| ListGroupId | 10 | 300 |