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Use Limits

Last updated: 2024-08-07 14:29:27
    This document lists different cluster forms of TDMQ Pulsar, and limitations on some metrics and performance. Please be careful not to exceed the corresponding limit values to avoid exceptions.
    Note:
    For the difference comparison between virtual clusters and dedicated clusters, see product selection.

    Cluster

    Limit
    Pro Cluster
    Virtual Cluster
    Maximum number of clusters in a single region
    Unlimited
    5
    Cluster-level TPS (receiving and sending)
    Depends on cluster specification.
    10,000
    Cluster-level peak bandwidth (receiving and sending)
    Depends on cluster specification.
    180 MB/s
    Cluster name length
    Up to 128 characters
    Up to 128 characters
    Maximum storage capacity
    20 TB
    100 GB
    Number of connections for a single broker
    It is 100,000 by default, adjustable based on specification.
    100000
    Single IP limit for broker
    It is 200 by default, adjustable based on specification.
    200

    Namespace

    Limit
    Virtual Cluster
    Pro Cluster
    Maximum number of namespaces in a single cluster
    100
    Depends on cluster specifications

    Topic

    Limit
    Pro Cluster
    Virtual Cluster
    Maximum number of Topics in a single cluster
    Depends on cluster specification.
    1000
    Maximum number of partitions per Topic
    32
    32
    Topic Name Length
    Up to 128 characters
    Up to 128 characters
    Max Production TPS Per Topic Partition
    It is 5,000 by default, adjustable based on cluster specification.
    5000
    Production Bandwidth Limit Per Topic Partition
    It is 50 Mbps by default, adjustable based on cluster specification.
    40 Mbps
    Max TPS Per Topic Partition
    It is 10,000 by default, adjustable based on cluster specification.
    5000
    Max Consumption Bandwidth Per Topic Partition
    It is 50 Mbps by default, adjustable based on cluster specification.
    40 Mbps
    Maximum Number of Producers Per Topic Partition
    1000
    1000
    Single IP limit of a producer
    It is 200 by default, adjustable based on cluster specification.
    200
    Maximum number of subscriptions per topic partition
    1000
    1000
    Maximum number of consumers per topic partition
    2000
    2000

    Message

    Limit
    Pro Cluster
    Virtual Cluster
    Max Message Retention Period
    15 days
    15 days
    Max Message Delay
    10 days
    10 days
    Max Message Size
    5MB
    5MB
    Reset consumption offset
    15 days
    15 days
    Maximum number of unacknowledged messages received
    It is 5,000 by default, adjustable based on cluster specification.
    5,000 entries
    Maximum number of messages for a single query
    65,536 entries
    65,536 entries
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