Modifying an Alarm Rule

Function

This API is used to modify an alarm rule.

Debugging

You can debug the API in API Explorer which supports automatic authentication. API Explorer can automatically generate and debug example SDK code.

URI

PUT /V1.0/{project_id}/alarms/{alarm_id}

• Parameter description

  Table 1 Parameter description

  Parameter	Mandatory	Description
  project_id	Yes	Specifies the project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
  alarm_id	Yes	Specifies the alarm rule ID.

• Example

  PUT https://{Cloud Eye endpoint}/V1.0/{project_id}/alarms/{alarm_id}

Request

• Request parameters

  Table 2 Parameter description

  Parameter	Mandatory	Type	Description
  alarm_name	No	String	Specifies the alarm rule name. Only letters, digits, underscores (_), and hyphens (-) are allowed.
  alarm_description	No	String	Provides supplementary information about the alarm rule. Enter 0 to 256 characters.
  condition	No	Condition object	Specifies the alarm policy set in the alarm rule. For details, see Table 3.
  alarm_action_enabled	No	Boolean	Specifies whether to enable the action to be triggered by an alarm. The default value is true. NOTE: If you set alarm_action_enabled to true, you must specify either alarm_actions or ok_actions. If alarm_actions and ok_actions coexist, their notificationList must be the same.
  alarm_level	No	Integer	Specifies the alarm severity, which can be 1, 2 (default), 3 or 4, indicating critical, major, minor, and informational, respectively.
  alarm_type	No	String	Specifies the alarm rule type. The following enumeration types are supported: EVENT.SYS: The alarm rule is created for system events. EVENT.CUSTOM: The alarm rule is created for custom events. RESOURCE_GROUP: The alarm rule is created for resource groups.
  alarm_actions	No	Array of objects	Specifies the action to be triggered by an alarm. The structure example is as follows: { "type": "notification","notificationList": ["urn:smn:southchina:68438a86d98e427e907e0097b7e35d47:sd"] } Possible values of type are as follows: notification: indicates that a notification will be sent. autoscaling: indicates that a scaling action will be triggered. For details, see Table 4.
  insufficientdata_actions	No	Array of objects	Specifies the action to be triggered by the alarm of insufficient data. (You do not need to configure this deprecated parameter.) For details, see Table 6.
  ok_actions	No	Array of objects	Specifies the action to be triggered after the alarm is cleared. For details, see Table 5.

  Table 3 condition data structure description

  Parameter	Mandatory	Type	Description
  period	Yes	Integer	Specifies how often Cloud Eye aggregates data, which can be 1: Cloud Eye performs no aggregation and displays raw data. 300: Cloud Eye aggregates data every 5 minutes. 1200: Cloud Eye aggregates data every 20 minutes. 3600: Cloud Eye aggregates data every hour. 14400: Cloud Eye aggregates data every 4 hours. 86400: Cloud Eye aggregates data every 24 hours.
  filter	Yes	String	Specifies the data rollup method, which can be average: Cloud Eye calculates the average value of metric data within a rollup period. max: Cloud Eye calculates the maximum value of metric data within a rollup period. min: Cloud Eye calculates the minimum value of metric data within a rollup period. sum: Cloud Eye calculates the sum of metric data within a rollup period. variance: Cloud Eye calculates the variance value of metric data within a rollup period.
  comparison_operator	Yes	String	Specifies the alarm threshold operator, which can be >, =, <, >=, or <=.
  value	Yes	Double	Specifies the alarm threshold. Supported range: 0 to Number. MAX_VALUE (1.7976931348623157e+108) For detailed thresholds, see the value range of each metric in the appendix. For example, you can set ECS cpu_util to 80.
  unit	No	String	Specifies the data unit. Enter up to 32 characters.
  count	Yes	Integer	Specifies the number of consecutive occurrence times that the alarm policy was met. Supported range: 1 to 5
  suppress_duration	No	Integer	Specifies the interval for triggering an alarm if the alarm persists. Possible intervals are as follows: 0: Cloud Eye triggers the alarm only once. 300: Cloud Eye triggers the alarm every 5 minutes. 600: Cloud Eye triggers the alarm every 10 minutes. 900: Cloud Eye triggers the alarm every 15 minutes. 1800: Cloud Eye triggers the alarm every 30 minutes. 3600: Cloud Eye triggers the alarm every hour. 10800: Cloud Eye triggers the alarm every 3 hours. 21600: Cloud Eye triggers the alarm every 6 hours. 43200: Cloud Eye triggers the alarm every 12 hours. 86400: Cloud Eye triggers the alarm every day.

  Table 4 alarm_actions data structure description

  Parameter	Mandatory	Type	Description
  type	Yes	String	Specifies the alarm notification type. notification: indicates that a notification will be sent. autoscaling: indicates that a scaling action will be triggered.
  notificationList	Yes	Array of strings	Specifies the list of objects to be notified if the alarm status changes. You can add up to 5 object IDs. topicUrn can be obtained from SMN. For details, see Querying Topics. If you set type to notification, you must specify notificationList. If you set type to autoscaling, you must set notificationList to []. NOTE: To make the Auto Scaling (AS) alarm rule take effect, you must bind the scaling policy. For details, see Creating an AS Policy. If you set alarm_action_enabled to true, you must specify either alarm_actions or ok_actions. (You do not need to configure the deprecated parameter insufficientdata_actions.) If alarm_actions and ok_actions coexist, their notificationList must be the same. (You do not need to configure the deprecated parameter insufficientdata_actions.) The IDs in the list are strings.

  Table 5 ok_actions data structure description

  Parameter	Mandatory	Type	Description
  type	Yes	String	Specifies the notification type when an alarm is triggered. notification: indicates that a notification will be sent. autoscaling: indicates that a scaling action will be triggered.
  notificationList	Yes	Array of objects	Specifies the list of objects to be notified if the alarm status changes. The list contains a maximum of 5 object IDs. topicUrn can be obtained from SMN. For details, see Querying Topics. NOTE: If you set alarm_action_enabled to true, you must specify either alarm_actions or ok_actions. (You do not need to configure the deprecated parameter insufficientdata_actions.) If alarm_actions and ok_actions coexist, their notificationList must be the same. (You do not need to configure the deprecated parameter insufficientdata_actions.)

  Table 6 insufficientdata_actions data structure description

  Parameter	Mandatory	Type	Description
  type	Yes	String	Specifies the notification type when an alarm is triggered. notification: indicates that a notification will be sent. autoscaling: indicates that a scaling action will be triggered.
  notificationList	Yes	Array of objects	Specifies the list of objects to be notified if the alarm status changes. You can add up to 5 object IDs. topicUrn can be obtained from SMN. For details, see Querying Topics. NOTE: If you set alarm_action_enabled to true, you must specify either alarm_actions or ok_actions. (You do not need to configure the deprecated parameter insufficientdata_actions.) If alarm_actions and ok_actions coexist, their notificationList must be the same. (You do not need to configure the deprecated parameter insufficientdata_actions.) The IDs in the list are strings.

Returned Values

• Normal

  204

• Abnormal

  Returned Value	Description
  400 Bad Request	Request error.
  401 Unauthorized	The authentication information is not provided or is incorrect.
  403 Forbidden	Access to the requested page is forbidden.
  408 Request Timeout	The request timed out.
  429 Too Many Requests	Concurrent requests are excessive.
  500 Internal Server Error	Failed to complete the request because of an internal service error.
  503 Service Unavailable	The service is currently unavailable.

Error Codes

See Error Codes.