If your Message Queue for Apache Kafka instance fails to meet your business requirements because the disk usage is continuously higher than 85% or the peak traffic continuously exceeds your purchased peak traffic, you can upgrade your instance specifications as needed.
- Currently, you can only upgrade instance specifications.
- Upgrading instance specifications causes brokers in the corresponding cluster to restart
one by one. This creates the following risks:
- If a client is not configured with a reconnection mechanism, the Message Queue for Apache Kafka service may become unavailable after this client is disconnected from a corresponding broker.
- The upgrade takes about 30 minutes and does not interrupt the service. However, messages may be distributed to a different partition for consumption during the upgrade. Therefore, evaluate the impact on your business before you proceed.
Instance specificationsMessage Queue for Apache Kafka allows you to upgrade an instance in the following dimensions:
- Instance edition
You can upgrade an instance from the Standard Edition to the Professional Edition.
- Peak traffic
When you upgrade the peak traffic of an instance, take note of the following:
- Instance edition
- Standard Edition: supports the peak traffic of up to 120 MB/s. If you need the peak traffic higher than 120 MB/s, you must first upgrade your instance to the Professional Edition and then upgrade the peak traffic. For more information, see Procedure.
- Professional Edition: supports the peak traffic of up to 2,000 MB/s.
- Disk type
- Ultra disk: If the peak traffic exceeds 120 MB/s, the corresponding cluster is scaled out. After the upgrade is complete, you need to rebalance the topic traffic. For more information, see Rebalance the topic traffic.
- SSD: If the peak traffic exceeds 300 MB/s, the corresponding cluster is scaled out. After the upgrade is complete, you need to rebalance the topic traffic. For more information, see Rebalance the topic traffic.
- Instance edition
- Disk capacity
You cannot change the disk type of an instance.
- Topic specifications
- For each additional topic purchased, the number of partitions increases by 16.
- For instances of the Professional Edition, the actual number of available topics is twice the number of the purchased topics.
This topic describes how to upgrade a subscription Message Queue for Apache Kafka instance from the Standard Edition to the Professional Edition.
- The billing method is subscription.
- The instance is of the Standard Edition and is in the Running state.
To upgrade a Message Queue for Apache Kafka instance from the Standard Edition to the Professional Edition, follow these steps:
- Log on to the Message Queue for Apache Kafka console. In the top navigation bar, select the region where the instance is located.
- In the left-side navigation pane, click Instances.
- On the top of the Instance Details page, click the ID of the target instance. In the Basic Information section, click Upgrade Instance in the upper-right corner.
Note You can click the Edit icon next to the instance name to modify the name of your instance.
- In the Instance Upgrade Risks dialog box, read the risks of instance upgrade carefully. After you understand these risks, 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..
- On the Configuration Change page, modify the instance specifications, and select Terms of Service of Message Queue for Apache Kafka (Subscription). Then click Buy Now.
- The recommended disk capacity is available for the corresponding peak traffic. The disk capacity changes with the adjusted peak traffic.
- A longer time is consumed for a larger increase in disk capacity.
- After the instance specifications are upgraded, the time for the order to take effect is subject to the time displayed on the upgrade order page.
Verify the result
On the Instance Details page, check the status of the instance in the Status section.
- If the status is Running, the upgrade is successful.
- If the status is Upgrading, please wait.
- If the status is Upgrade Failed, submit a ticket.
What to do next
After the instance specifications are upgraded, you may need to modify the message configuration to adapt to the upgraded instance specifications. For more information, see Modify the message configuration.