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Use Limits

Last updated: 2022-06-29 11:15:17

    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
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