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TDMQ for Apache Pulsar

    ドキュメントTDMQ for Apache Pulsar

    Quotas and Limits

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    最終更新日: 2025-12-24 14:51:17
    This document describes the metric and performance limits of different types of TDMQ for Apache Pulsar clusters. Note these limits when using the product to avoid exceptions.
    Note:
    For differences between virtual clusters and pro clusters, see Product Selection.

    Clusters

    Limit Type
    Pro Cluster
    Virtual Cluster
    Maximum number of clusters per region
    Not limited
    5
    Cluster-level TPS (sending and receiving)
    Depending on the cluster specifications
    10000
    Cluster-level peak bandwidth (inbound and outbound)
    Depending on the cluster specifications
    180 MB/s
    Cluster name length
    No more than 128 characters
    No more than 128 characters
    Maximum storage capacity
    20 TB
    100 GB
    Number of connections per broker
    Default: 100000; adjustable based on the specifications
    100000
    Limit on client connections from an IP address on the broker
    Default: 200; adjustable based on the specifications
    200

    Namespaces

    Limit Type
    Pro Cluster
    Virtual Cluster
    Maximum number of namespaces per cluster
    Depending on the cluster specifications
    100

    Topics

    Limit Type
    Pro Cluster
    Virtual Cluster
    Maximum number of topics per cluster
    Depending on the cluster specifications
    1000
    Back_Log_Size of a topic
    Depending on the cluster specifications
    10 GB
    Maximum number of partitions per topic
    32
    32
    Topic name length
    No more than 128 characters
    No more than 128 characters
    Maximum production TPS per topic partition
    Default: 5000; adjustable based on the cluster specifications
    5000
    Maximum production bandwidth per topic partition
    Default: 50 Mbps; adjustable based on the cluster specifications
    40 Mbps
    Maximum consumption TPS per topic partition
    Default: 10000; adjustable based on the cluster specifications
    5000
    Maximum consumption bandwidth per topic partition
    Default: 50 Mbps; adjustable based on the cluster specifications
    40 Mbps
    Maximum number of producers per topic partition
    1000
    1000
    Limit on producer connections from an IP address
    Default: 200; adjustable based on the cluster specifications
    200
    Maximum number of subscriptions per topic
    Default: 2000; adjustable based on the cluster specifications
    2000
    Maximum number of consumers per subscription in a topic partition
    1000
    1000
    Maximum number of consumers per topic partition
    2000
    2000
    Maximum number of gap messages per topic subscription
    10000; adjustable based on the cluster specifications
    1000
    Backlog message size per topic
    No additional limits
    10 GB

    Messages

    Limit Type
    Pro Cluster
    Virtual Cluster
    Maximum message retention time
    15 days
    15 days
    Maximum message delayed time
    10 days
    10 days
    Maximum message size
    5 MB
    5 MB
    Consumer offset reset
    15 days
    15 days
    Maximum number of unacknowledged messages received
    Default: 5000; adjustable based on the cluster specifications
    5000
    Maximum number of messages in a query
    65,536 entries
    65,536 entries
    

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