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Microservices Engine:Quotas and limits

Last Updated:Jun 17, 2026

A quota defines the maximum number of cloud resources or operations that an Alibaba Cloud account (primary account) can use. You can view and manage MSE resource quotas in Quota Center.

Default MSE resource quotas

Registry and configuration

Quota name

Quota code

Default

Adjustable maximum

Description

Maximum number of clusters per account

q_registry_clusters

100

200

Excludes terminated instances.

Maximum size of a single Nacos configuration

q_nacos_config_size

100 KB

1 MB

Maximum length of Nacos instance metadata

q_nacos_meta_size

4,096 bytes

8,192 bytes

Number of namespaces for a Nacos Serverless instance

q_nacos_serverless_namespaces

20

30

Number of namespaces for a standard Nacos instance (Developer Edition)

q_nacos_dev_namespaces

20

30

Number of namespaces for a standard Nacos instance (Professional Edition, low-spec)

_nacos_pro_low_namespaces

20

30

Single node with fewer than 4 vCPUs

Number of namespaces for a standard Nacos instance (Professional Edition, high-spec)

q_nacos_pro_high_namespaces

40

80

Single node with 4 or more vCPUs

Number of namespaces for a standard Nacos instance (Enterprise Edition, low-spec)

q_nacos_platinum_low_namespaces

50

100

Small.Platinum.x2

Number of namespaces for a standard Nacos instance (Enterprise Edition, high-spec)

q_nacos_platinum_high_namespaces

100

160

Medium.Platinum.x1 and higher specifications

Number of configurations for a Nacos Serverless instance

q_nacos_serverless_cluster_configs

1,000

2,000

Number of configurations for a standard Nacos instance (Developer Edition)

q_nacos_dev_cluster_configs

1,000

2,000

Number of configurations for a standard Nacos instance (Professional Edition, low-spec)

q_nacos_pro_low_cluster_configs

1,000

2,000

Single node with fewer than 4 vCPUs

Number of configurations for a standard Nacos instance (Professional Edition, high-spec)

q_nacos_pro_high_cluster_configs

5,000

20,000

Single node with 4 or more vCPUs

Number of configurations for a standard Nacos instance (Enterprise Edition, low-spec)

q_nacos_pro_platinum_low_cluster_configs

5,000

20,000

Small.Platinum.x2

Number of configurations for a standard Nacos instance (Enterprise Edition, high-spec)

q_nacos_pro_platinum_high_cluster_configs

20,000

50,000

Medium.Platinum.x1 and higher specifications

Number of SASL users for ZooKeeper

q_zk_sasl_user_count

10

50

Microservices governance

Quota name

Quota code

Default quota

Adjustable maximum

Number of namespaces

q_msc_namespaces

200

300

Number of applications in a swimlane group

q_msc_group_apps

100

150

Number of swimlane groups in a namespace

q_msc_namespace_lane_group

50

70

Number of swimlanes in a swimlane group

q_msc_lane

50

70

Number of routes in a swimlane (applies when an MSE gateway is the entry point for a full-link grayscale release)

q_msc_lane_route

50

70

Change MSE resource quotas

If your workload requires more MSE resources than the default quotas allow, you can request an increase in Quota Center.

  1. Log on to the Quota Center console. In the left-side navigation pane, choose Product List > General Quotas.

  2. On the General Quota Products page, under the Application service category, click MSE Microservices Governance or MSE Registry and Configuration Center.

  3. On the General Quotas List page, you can view or increase resource quotas.

    • To view quotas: The Quota column shows the quota for each resource, and the Used column shows your current usage.

    • To apply for a quota increase: In the Actions column, click Apply. In the Apply for Quota dialog box that appears, set the parameters and click Confirm Change.

    Note
    • Quota adjustments for Nacos instances are not immediate. Ensure that the instance is in the Running state before you adjust its quota.

    • When performing instance scaling or product type conversion, monitor the corresponding quotas and adjust them if necessary.

    • For stability, the quota for the number of configurations in your existing Nacos instances is automatically adjusted to your current usage. If you need to further increase this quota, submit an application in Quota Center. Your configured quota will apply to new instances.

References

  • You can create quota alarms to receive alerts when your usage reaches a preset threshold, so you can request a quota increase in advance. For more information, see Quota Alarms.

  • After you submit a quota increase request, you can check its approval status. For more information, see Query Application History.

  • For more quota operations, see Quota Center.