Help Center/ Cloud Eye/ API Reference/ API V2/ Alarm Masking Rules/ Modifying an Alarm Masking Rule

Updated on 2025-10-30 GMT+08:00

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Modifying an Alarm Masking Rule

Function

This API is used to modify an alarm masking rule.

Debugging

You can debug this API through automatic authentication in API Explorer or use the SDK sample code generated by API Explorer.

Authorization Information

Each account has all the permissions required to call all APIs, but IAM users must be assigned the required permissions.

If you are using role/policy-based authorization, see Permissions Policies and Supported Actions for details on the required permissions.

If you are using identity policy-based authorization, the following identity policy-based permissions are required.

Action	Access Level	Resource Type (*: required)	Condition Key	Alias	Dependencies
ces:alarms:putNotificationMaskRules	Write	-	g:EnterpriseProjectId	ces:notificationMasks:update	-

URI

PUT /v2/{project_id}/notification-masks/{notification_mask_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Definition Project ID. It is used to specify the project that an asset belongs to. You can query the assets of a project by project ID. You can obtain the project ID from the API or console. For details, see Obtaining a Project ID. Constraints N/A Range 1 to 64 characters Default Value N/A
notification_mask_id	Yes	String	Definition Masking rule ID. Constraints N/A Range The value allows 1 to 64 characters and can only contain letters and digits. Default Value N/A

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
Content-Type	No	String	Definition MIME type of the request body. Constraints: None Value range: The value can contain 1 to 64 characters. Default value: The default type is application/json; charset=UTF-8.
X-Auth-Token	No	String	Definition User token. Constraints: None Value range: The value can contain 1 to 16,384 characters. Default value: None

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
mask_name	Yes	String	Definition Masking rule name. Constraints N/A Range The value allows 1 to 64 characters. It can only contain letters, digits, hyphens (-), and underscores (_). Default Value N/A
relation_ids	No	Array of strings	Definition Relation ID. Constraints Array length: [1,100] If you set relation_type to ALARM_RULE, set this parameter to the ID of the masked alarm rule. If you set relation_type to RESOURCE_POLICY_NOTIFICATION or RESOURCE_POLICY_ALARM, set this parameter to the ID of the masked alarm policy.
relation_type	No	String	Definition Method for masking alarm notifications or calculation. Constraints N/A Range The value allows 1 to 32 characters and can only be: ALARM_RULE: masking alarm notifications by alarm rule RESOURCE: masking alarm notifications by resource RESOURCE_POLICY_NOTIFICATION: masking alarm notifications by resource or alarm policy RESOURCE_POLICY_ALARM: masking alarm calculation by resource or alarm policy Default Value N/A
metric_names	No	Array of strings	Name of the associated metric. This parameter is optional when relation_type is set to RESOURCE. If this parameter is left blank, the masking rule will be applied to all metrics of the resource.
product_metrics	No	Array of ProductMetric objects	Metric information when the masking rule is applied by cloud product.
resource_level	No	String	dimension indicates the sub-dimension, and product indicates the cloud product.
product_name	No	String	Cloud product name specified when Cloud product is selected for Resource Level.
resources	Yes	Array of Resource objects	Definition Associated resources. Constraints Array length: [1,100]
mask_type	Yes	String	Definition Masking type. Constraints N/A Range The value can be: START_END_TIME: Alarms are masked by start time and end time. FOREVER_TIME: Alarms are masked permanently. CYCLE_TIME: Alarms are masked by period. Default Value N/A
start_date	No	String	Definition Masking start date. Constraints N/A Range The value contains 10 characters and is in the yyyy-MM-dd format. Default Value N/A
start_time	No	String	Definition Masking start time. Constraints N/A Range The value contains eight characters in the HH:mm:ss format. Default Value N/A
end_date	No	String	Definition Masking end date. Constraints N/A Range The value contains 10 characters and is in the yyyy-MM-dd format. Default Value N/A
end_time	No	String	Definition Masking end time. Constraints N/A Range The value contains eight characters in the HH:mm:ss format. Default Value N/A
effective_timezone	No	String	Definition Time zone, for example, GMT-08:00, GMT+08:00, or GMT+0:00. Constraints N/A Range 1 to 16 characters Default Value N/A

**Table 4** ProductMetric
Parameter	Mandatory	Type	Description
dimension_name	Yes	String	Definition Metric dimensions when the masking rule is applied by cloud product. Constraints N/A Range The value contains 0 to 128 characters. Multiple dimensions are separated by commas (,). Default Value N/A
metric_name	Yes	String	Definition Metric name of a resource. For details about the metrics of each service, see Service Metric Names. Constraints N/A Range The value must start with a letter and can only contain digits, letters, underscores (_), and hyphens (-). 1 to 96 characters For example, the ECS metric cpu_util indicates the CPU usage of an ECS. The DDS metric mongo001_command_ps indicates the command execution frequency. Default Value N/A

**Table 5** Resource
Parameter	Mandatory	Type	Description
namespace	Yes	String	Definition Namespace of a service. For details about the namespace of each service, see Namespace. Constraints N/A Range The value is in the service.item format. The values of service and item must be a string, starting with a letter and containing only digits (0–9), letters (case-insensitive), and underscores (_). The value must contain 3 to 32 characters. Default Value N/A
dimensions	Yes	Array of ResourceDimension objects	Definition Resource dimension information. Constraints A maximum of four dimensions are allowed.

**Table 6** ResourceDimension
Parameter	Mandatory	Type	Description
name	Yes	String	Definition Dimension of a resource. For example, the dimension of an ECS can be instance_id. A maximum of four dimensions are supported. For the metric dimension of each resource, see Service Metric Dimensions. Constraints N/A Range The value starts with a letter and allows 1 to 32 characters. It can contain letters, digits, underscores (_), and hyphens (-). Default Value N/A
value	Yes	String	Definition Resource dimension value, which is an instance ID, for example, 4270ff17-aba3-4138-89fa-820594c39755. Constraints N/A Range 1 to 256 characters Default Value N/A

Response Parameters

Status code: 204

No Content

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Status code: 500

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Status codes customized by each cloud service when a request error occurs.
error_msg	String	Request error message.
request_id	String	Request ID.

Example Requests

{
  "mask_name" : "mn_test",
  "relation_ids" : [ "al123232232341232132" ],
  "relation_type" : "ALARM_RULE",
  "resources" : [ {
    "namespace" : "SYS.ECS",
    "dimensions" : [ {
      "name" : "instance_id",
      "value" : "4270ff17-aba3-4138-89fa-820594c39755"
    } ]
  } ],
  "mask_type" : "START_END_TIME",
  "start_date" : "yyyy-MM-dd",
  "start_time" : "HH:mm:ss",
  "end_date" : "yyyy-MM-dd",
  "end_time" : "HH:mm:ss"
}