This topic describes the supported editions of Message Queue for Apache Kafka instances to help you select a suitable instance edition.

Instance editions

The following table describes each instance edition of Message Queue for Apache Kafka.

Item Standard Edition (High Write) Professional Edition (High Write) Professional Edition (High Read)
Versions Versions 0.10.x to 2.x are supported. Versions 0.10.x to 2.x are supported.
Ratio of the maximum read traffic to the maximum write traffic 1:1 1:1 5:1
Instance type Virtual instance whose specific resources are shared Dedicated instance
Message retention period Up to seven days Customizable
Disaster recovery Single-zone deployment Multi-zone deployment
Performance optimization Not supported Customizable
Cross-region message routing Not supported Not supported
Access control list (ACL) Not supported Supported
SSL-based message encryption in virtual private clouds (VPCs) Not supported Supported
Cross-zone deployment Not supported Supported
Message downloads Not supported Supported
Resource sharing Specific resources such as disks are shared.
  • Network jitters may occur due to high latency. For example, traffic spikes may occur and cause high loads on disks. This may increase the latency of requests, and a timeout error may occur.
  • Clients support retries to avoid message loss. The retry feature does not affect the messages that are written.
All resources are exclusive.
Disk capacity If you purchase a disk of 300 GB, the actual storage space that you can use to store your business data is 100 GB. The remaining 200 GB is used to store backups. If you purchase a disk of 300 GB, the actual storage space that you can use to store your business data is 300 GB. Alibaba Cloud provides additional 600 GB of storage space free of charge to allow you to store backups.