A quota refers to the maximum number of resources that an Alibaba Cloud account can use or the maximum number of operations that an Alibaba Cloud account can perform on a resource. Quota Center allows you to query the quotas and quota usage of Microservices Engine (MSE) resources, apply for quotas online, or create quota alert rules based on your business requirements. This topic describes how to manage MSE resource quotas.
Default resource quotas of MSE
Microservice Registry
Quota name | Quota code | Default value | Maximum quota value that can be requested | Description |
Maximum number of clusters that can be created by a single user | q_registry_clusters | 100 | 200 | Destroyed instances are not included. |
Size of a single Nacos configuration | q_nacos_config_size | 100 KB | 1 MB | |
Length of the metadata of a Nacos instance | q_nacos_meta_size | 4,096 bytes | 8,192 bytes | |
Number of namespaces of a serverless Nacos instance | q_nacos_serverless_namespaces | 20 | 30 | |
Number of namespaces in a common Nacos instance of the Developer Edition | q_nacos_dev_namespaces | 20 | 30 | |
Number of low-specifications namespaces in a common Nacos instance of the Professional Edition | _nacos_pro_low_namespaces | 20 | 30 | A single node has less than 4 cores. |
Number of high-specifications namespaces in a common Nacos instance of the Professional Edition | q_nacos_pro_high_namespaces | 40 | 80 | A single node has four or more cores. |
Number of low-specifications namespaces in a common Nacos instance of the Enterprise Edition | q_nacos_platinum_low_namespaces | 50 | 100 | Small.Platinum.x2 |
Number of high-specifications namespaces in a common Nacos instance of the Enterprise Edition | q_nacos_platinum_high_namespaces | 100 | 160 | Medium.Platinum.x1 and higher specifications |
Number of configurations in a serverless Nacos instance | q_nacos_serverless_cluster_configs | 1,000 | 2,000 | |
Number of configurations in a cluster for a common Nacos instance of the Developer Edition | q_nacos_dev_cluster_configs | 1,000 | 2,000 | |
Number of configurations in a low-specifications cluster for a common Nacos instance of the Professional Edition | q_nacos_pro_low_cluster_configs | 1,000 | 2,000 | A single node has less than 4 cores. |
Number of configurations in a high-specifications cluster for a common Nacos instance of the Professional Edition | q_nacos_pro_high_cluster_configs | 5,000 | 20,000 | A single node has four or more cores. |
Number of low-specifications configurations in a common Nacos instance of the Enterprise Edition | q_nacos_pro_platinum_low_cluster_configs | 5,000 | 20,000 | Small.Platinum.x2 |
Number of high-specifications configurations in a common Nacos instance of the Enterprise Edition | q_nacos_pro_platinum_high_cluster_configs | 20,000 | 50,000 | Medium.Platinum.x1 and higher specifications |
Number of Simple Authentication and Security Layer (SASL) users in a ZooKeeper instance | q_zk_sasl_user_count | 10 | 50 |
Microservices Governance
Quota name | Quota code | Default quota | Maximum quota value that can be requested |
Number of namespaces | q_msc_namespaces | 200 | 300 |
Number of applications in a lane group | q_msc_group_apps | 100 | 150 |
Number of lane groups in a namespace | q_msc_namespace_lane_group | 50 | 70 |
Number of lanes in a lane group | q_msc_lane | 50 | 70 |
Number of routes in a lane when the MSE gateway is the ingress application during an end-to-end canary release | q_msc_lane_route | 50 | 70 |
Modify MSE resource quotas
If your business requires MSE resources whose amounts exceed the default quota value and the resource quota is adjustable in Quota Center, you can perform the following steps to view the quota and apply for a quota increase:
Log on to the Quota Center console.
In the left-side navigation pane, choose Products > General Quotas. On the Products with General Quotas page, select Application Service from the Category drop-down list and click the mse-governance or mse-registry card.
On the General Quotas page, view or increase resource quotas.
View resource quotas. On the General Quotas page, the values in the Total Quotas column indicate the maximum number of resources and the values in the In Use column indicate the usage of quotas.
Apply for a quota increase. Click Apply in the Actions column. In the Apply for Quotas dialog box, configure the parameters and click OK.
NoteIt takes time to make quota adjustment of a Nacos instance take effect. You must adjust the quota when the instance is in the running state.
When you upgrade or downgrade the instance configuration or change the instance type, pay attention to the corresponding quota value and adjust it in a timely manner.
The quota for the configurations of the Nacos instances that you created is set to an optimal value based on your resource usage to ensure stability. If you want to increase the quota, you can apply for the quota in the Quota Center console. Resources on new instances are limited based on the configured quota.
References
You can create alert rules for a quota item. If the usage of a quota reaches the specified threshold, the system sends an alert notification to you. In this case, you can submit an application to request a quota increase in advance. For more information, see Quota Alerts.
After you request a quota increase, you can query the application and view the application details. You can also view the application results. For more information, see Query applications and view application details.
For more information about operations that you can perform in Quota Center, see What is Quota Center?