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This document lists the limits of certain metrics and performance in TDMQ for CMQ. Be careful not to exceed the limits during use so as to avoid exceptions.
Queue
Limit | Description |
Maximum number of queues per root account | 10,000 |
Message lifecycle | 1 minute–15 days |
Long polling wait time for message receipt | 0–30 seconds |
Hidden duration of fetched message | 1 second–12 hours |
Maximum message size | 1 MB |
Maximum number of heaped messages | 1 million–100 million per queue |
Production QPS limit | 5,000 |
Consumption QPS limit | 5,000 |
Traffic limit | 400 Mbps |
Topic
Limit | Description |
Maximum number of topics per root account | 10,000 |
Message lifecycle | 24 hours by default, which cannot be modified currently |
Maximum message size | 1 MB |
Production QPS limit | 5,000 |
Consumption QPS limit | 5,000 |
Traffic limit | 400 Mbps |
Subscriber
Limit | Description |
Maximum number of subscribers per topic | 1,000 |
Note:
If you need higher production QPS, consumption QPS, and traffic, you can submit a ticket to apply for increasing the upper limits.
Public Network Bandwidth
Limit | Description |
Maximum public network bandwidth | 5 Mbps by default |
Yes
No
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