You can use resources that are billed based on the subscription billing method only after you pay for them. This billing method applies to scenarios where you run stable and long-term business. To use the subscription billing method, you need to estimate the amount of resources that you require based on your business scale. Supported subscription periods include a single month, multiple months, and multiple years. After you place an order and complete the payment, the system allocates resources to your account. If you do not renew a resource after it expires, the resource is reclaimed by the system.

Billing formulas

In subscription mode, you need to pay for the billable items, such as the traffic specification and disk capacity, that you specify when you create an instance. Billable items and their unit prices vary with the instance type. For more information about billable items, see Billing.
  • Internet- and VPC-connected instances: Instances of this type can be accessed over the Internet or from a virtual private cloud (VPC).

    Total fees = (Unit price of Internet traffic + Unit price of traffic specification + Unit price of disk capacity × Disk capacity/100 + Unit price of topics × Number of additional topics) × Number of months

  • VPC-connected instances: Instances of this type can be accessed only from a VPC.

    Total fees = (Unit price of traffic specification + Unit price of disk capacity × Disk capacity/100 + Unit price of topics × Number of additional topics) × Number of months

Detailed billing rules

  • Billing rules for Internet traffic

    For more information, see the Subscription topic of Elastic IP Address (EIP).

  • Billing rules for traffic specifications

    The billing rules for traffic specifications vary with the instance edition. Standard Edition (High Write), Professional Edition (High Write), and Professional Edition (High Read) support different traffic specifications. The traffic specification specified for an instance determines the peak traffic for cluster computing and the maximum number of topics allowed. The higher the peak read/write traffic is, the more topics are involved, and the higher the fees are. In addition, the unit price of traffic specification varies with the region group. For information about the specifications of each instance edition, see Instance editions. The following table describes the regions supported by Message Queue for Apache Kafka in different groups.

    Region group Region
    Region group 1 China (Hangzhou)
    China (Shanghai)
    China (Qingdao)
    China (Beijing)
    China (Zhangjiakou)
    China (Hohhot)
    China (Shenzhen)
    China (Heyuan)
    China (Chengdu)
    Region group 2 China (Hong Kong)
    Singapore (Singapore)
    Japan (Tokyo)
    US (Virginia)
    US (Silicon Valley)
    Germany (Frankfurt)
    UK (London)
    Region group 3 Malaysia (Kuala Lumpur)
    India (Mumbai)
    Indonesia (Jakarta)

    Notice The following limits are imposed on the alikafka.hw.test traffic specification of Standard Edition (High Write) instances:
    • Alibaba Cloud does not provide a service level agreement (SLA) for a Message Queue for Apache Kafka instance that uses this traffic specification. If you want to deploy your business online, we recommend that you upgrade the instance or purchase another instance that uses a higher traffic specification.
    • This traffic specification is available only for users that have not purchased a Message Queue for Apache Kafka instance before. In addition, you can purchase only one instance that uses this traffic specification.
    Table 1. Billing rules for traffic specifications of Standard Edition (High Write) instances
    Traffic specification Maximum read traffic of ENIs (Mbit/s) Maximum write traffic of ENIs (Mbit/s) Default number of topics allowed Default number of partitions allowed Unit price in region group 1 (USD/month) Unit price in region group 2 (USD/month) Unit price in region group 3 (USD/month)
    alikafka.hw.2xlarge 3 × 20 3 × 20 50 400 250 370 340
    alikafka.hw.3xlarge 3 × 30 3 × 30 50 500 360 530 480
    alikafka.hw.6xlarge 3 × 60 3 × 60 80 600 520 760 700
    alikafka.hw.9xlarge 3 × 90 3 × 90 100 800 660 960 880
    alikafka.hw.12xlarge 3 × 120 3 × 120 150 900 800 1,160 1,070
    Table 2. Billing rules for traffic specifications of Professional Edition (High Write) instances
    Traffic specification Maximum read traffic of ENIs (Mbit/s) Maximum write traffic of ENIs (Mbit/s) Default number of topics allowed Default number of partitions allowed Unit price in region group 1 (USD/month) Unit price in region group 2 (USD/month) Unit price in region group 3 (USD/month)
    alikafka.hw.2xlarge 3 × 20 3 × 20 50 1,100 600 870 800
    alikafka.hw.3xlarge 3 × 30 3 × 30 50 1,200 780 1,040 1,040
    alikafka.hw.6xlarge 3 × 60 3 × 60 80 1,400 1,130 1,510 1,510
    alikafka.hw.9xlarge 3 × 90 3 × 90 100 1,600 1,440 1,920 1,920
    alikafka.hw.12xlarge 3 × 120 3 × 120 150 1,800 1,750 2,330 2,330
    alikafka.hw.16xlarge 3 × 160 3 × 160 180 2,000 2,060 2,740 2,740
    alikafka.hw.20xlarge 3 × 200 3 × 200 200 2,200 2,980 3,970 3,970
    alikafka.hw.25xlarge 3 × 250 3 × 250 250 2,500 3,430 4,570 4,570
    alikafka.hw.30xlarge 3 × 300 3 × 300 300 3,000 3,880 5,170 5,170
    alikafka.hw.60xlarge 3 × 600 3 × 600 450 4,500 5,280 7,030 7,030
    alikafka.hw.80xlarge 3 × 800 3 × 800 500 5,000 6,220 8,280 8,280
    alikafka.hw.100xlarge 3 × 1000 3 × 1000 600 6,000 7,270 9,670 9,670
    alikafka.hw.120xlarge 3 × 1200 3 × 1200 700 7,000 8,100 10,780 10,780
    alikafka.hw.150xlarge 3 × 1500 3 × 1500 800 8,000 9,500 12,640 12,640
    alikafka.hw.180xlarge 3 × 1800 3 × 1800 900 9,000 10,910 14,520 14,520
    alikafka.hw.200xlarge 3 × 2000 3 × 2000 1,000 10,000 12,070 16,060 16,060
    Table 3. Billing rules for traffic specifications of Professional Edition (High Read) instances
    Traffic specification Maximum read traffic of ENIs (Mbit/s) Maximum write traffic of ENIs (Mbit/s) Default number of topics allowed Default number of partitions allowed Unit price in region group 1 (USD/month) Unit price in region group 2 (USD/month) Unit price in region group 3 (USD/month)
    alikafka.hr.2xlarge 50 + 2 × 10 10 + 2 × 10 50 1,100 600 870 800
    alikafka.hr.3xlarge 75 + 2 × 15 15 + 2 × 15 50 1,200 780 1,040 1,040
    alikafka.hr.6xlarge 150 + 2 × 30 30 + 2 × 30 80 1,400 1,130 1,510 1,510
    alikafka.hr.9xlarge 180 + 2 × 45 45 + 2 × 45 100 1,600 1,440 1,920 1,920
    alikafka.hr.12xlarge 240 + 2 × 60 60 + 2 × 60 150 1,800 1,750 2,330 2,330
  • Billing rules for disk capacity

    The billing rules for disk capacity vary with the disk type and the unit price of disk capacity varies with the region group. If the default disk capacity does not meet your requirements, you must purchase additional disk capacity by adjusting the value of the Disk Capacity parameter on the buy page to a larger value.

    Disk type Disk capacity (GB) Unit price in region group 1 (USD/month) Unit price in region group 2 (USD/month) Unit price in region group 3 (USD/month)
    Ultra disk 100 6 8 8
    Solid-state drive (SSD) 100 16 23 21
  • Billing rules for additional topics

    The default number of topics allowed for an instance indicates the minimum topic quota that you must purchase. If the default number of topics does not meet your requirements, you must purchase an additional topic quota by adjusting the value of the Topics parameter on the buy page to a larger value. 16 additional partitions are available for each added topic. If the specified number of topics reaches the upper limit imposed by the current traffic specification, we recommend that you select a higher traffic specification. Such a choice is cost-effective due to the automatic billing optimization between traffic specifications and topic quotas. The unit price of additional topic quotas varies with the region group.

    Billable item Number of topics Unit price in region group 1 (USD/month) Unit price in region group 2 (USD/month) Unit price in region group 3 (USD/month)
    Topic 1 7 11 10