# Resource Quota Management

The amount of resources(e.g. alarms) that could be created by each OpenStack project is controlled by quota. The default resource quota for each project is set in Aodh config file as follows unless changed by the cloud administrator via Quota API.

    [api]
    user_alarm_quota = -1
    project_alarm_quota = -1
    alarm_max_actions = -1

user_alarm_quota

  The default alarm quota for an openstack user, default is unlimited. Sometimes the alarm creation request satisfies the project quota but fails the user quota.

project_alarm_quota

  The default alarm quota for an openstack project, default is unlimited. The cloud administrator can change project quota using Quota API, see examples below.

alarm_max_actions

  The maximum number of alarm actions could be created per alarm, default is unlimited.

## Quota API

Aodh Quota API is aiming for multi-tenancy support. By default, only the admin user is able to change the resource quota for projects as defined by the default policy rule ‘telemetry:update_quotas’. User alarm quota and alarm action quota are not supported in Quota API.

An HTTP request example using `httpie` command:

    cat <<EOF | http post v2/quotas X-Auth-Token:$token
    {
      "project_id": "8aecc55977714e898281c24260747d78",
      "quotas": [
        {
          "resource": "alarms",
          "limit": 30
        }
      ]
    }
    EOF

this page last updated: 2026-08-15 16:35:58

Except where otherwise noted, this document is licensed under Creative Commons Attribution 3.0 License. See all OpenStack Legal Documents.

found an error? report a bug