Help Center/ ServiceStage/ User Guide/ Environment Management/ Managing CCE Resources/ Managing Namespaces/ Managing Namespace Quotas
Updated on 2024-11-15 GMT+08:00
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Managing Namespace Quotas

By default, pods running in a CCE cluster can use the CPUs and memory of a node without restrictions. This means that pods in a namespace may exhaust all resources of the cluster.

Kubernetes provides namespaces for you to group workloads in a cluster. By setting resource quotas for each namespace, you can prevent resource exhaustion and ensure cluster reliability. You can configure quotas for resources such as CPU, memory, and the number of pods in a namespace. For more information, see Resource Quotas.

User-created namespaces and the cluster-created namespace default support resource quota management.

Prerequisites

A CCE cluster has been bound to the environment. For details, see Binding a CCE Cluster.

Managing Namespace Resource Quotas

  1. Log in to ServiceStage.
  2. On the Environment Management page, click the target environment.
  3. In the Resources area, choose Clusters from Compute.
  4. Click the Namespace tab.
  5. Locate the target namespace and click Resource Quota Manager in the Operation column.

    In the displayed Resource Quota Manager dialog box, view the resource types, total resource quotas, and accumulated quota usage in the namespace.
    Figure 1 Accessing the Resource Quota Manager page

  6. Click Edit Quota and set the total quota of each resource type.

    • If the usage of a resource type is not limited, leave it blank.
    • If the usage of a resource type is limited, enter an expected integer ranging from 1 to 9,007,199,254,740,992.
      • Accumulated quota usage includes the default resources created by CCE, such as the Kubernetes service (which can be viewed using kubectl) created under the default namespace. Therefore, you are advised to set a resource quota slightly greater than expected.
      • If the total CPU or memory quota in a namespace is limited, you must set the maximum and minimum number of CPU cores and memory (GiB) that can be used by the component when setting resources for the Kubernetes component of this namespace in Creating and Deploying a Component and Upgrading a Single Component. Otherwise, the operation will fail.
      • If the total quota of other resource types in a namespace is limited and the remaining usage of this resource type does not meet requirements, the Kubernetes component of this namespace will fail to be deployed.

  7. Click OK.
Parent topic: Managing Namespaces