You can adjust the message retention period and the maximum message size based on business needs.


A Message Queue for Apache Kafka instance is purchased and deployed, and it is in the Running state.


  1. Log on to the Message Queue for Apache Kafka console.
  2. In the top navigation bar, select a region.
  3. In the left-side navigation pane, click Instances.
  4. On the Instance Details page, click the instance whose message configuration you want to modify.
  5. In the Configurations section, click Configuration Change.
  6. In the Configuration Change dialog box, set the parameters and then click Change.
    Modify the message configuration
    Parameter Description
    Message Retention Period The maximum message retention period when the disk capacity is sufficient.
    • When the disk usage reaches 85%, the disk capacity is insufficient, and the system deletes messages from the earliest stored ones to ensure service availability.
    • The default value is 72 hours. Valid values: 24 hours to 480 hours.
    Maximum Message Size The maximum size of a message that Message Queue for Apache Kafka can receive and send.
    • The maximum message size is 10 MB for instances of the Standard Edition and Professional Edition.
    • Before you modify the configuration, ensure that the new value matches the configuration on the producer and consumer.
  7. In the Alerts dialog box, select I am aware of the service unavailability risk caused by restart of servers in the cluster. and then click I am aware of the risks..
    I am aware of the risks

What to do next

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