Modifying Alarm Policies

Function

This API is used to modify alarm policies.

URI

PUT /v2/{project_id}/alarms/{alarm_id}/policies

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the tenant ID. Minimum: 1 Maximum: 64 Regex Pattern: ^[a-zA-Z0-9-]{1,64}$
alarm_id	Yes	String	Specifies the ID of the instance for which the alarm rule is configured. Regex Pattern: ^al([0-9A-Za-z]){22}$

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
Content-Type	Yes	String	Specifies the MIME type of a request body. The default type is application/json; charset=UTF-8. Default: application/json; charset=UTF-8 Minimum: 1 Maximum: 64
X-Auth-Token	Yes	String	Specifies the user token. Minimum: 1 Maximum: 16384

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
policies	Yes	Array of Policy objects	Specifies the policy information.

**Table 4** Policy
Parameter	Mandatory	Type	Description
metric_name	Yes	String	Specifies the metric name of a resource. The name must start with a letter and contain only letter, digits, and underscores (_) . The length ranges from 1 to 64 characters. For example, cpu_util of an ECS indicates the CPU usage of the ECS. mongo001_command_ps in DDS indicates the command execution frequency. For details about the metric name of each service, see Service metric name.
period	Yes	Integer	Specifies the monitoring period of a metric, in seconds. The default value is 0. For example, for an event alarm, set this parameter to 0. 1 indicates the original monitoring period of the metric. For example, if the original period of an RDS metric is 60s, the RDS metric is calculated every 60 seconds as a data point. For details about the original period of each cloud service metric, see the Namespace column. 300 indicates that the metric is calculated every 5 minutes as a data point. Minimum: 0 Maximum: 86400 Enumeration values: 0 1 300 1200 3600 14400 86400
filter	Yes	String	Specifies the aggregation method. The value can be average, min, max, or sum.
comparison_operator	Yes	String	Specifies the threshold operator, which can be >, <, >=, <=, =, or ><.
value	Yes	Number	Specifies the threshold.
unit	No	String	Specifies the unit.
count	Yes	Integer	Specifies the number of counts that the threshold is met.
suppress_duration	No	Integer	Specifies the alarm suppression time, in seconds. This field corresponds to the last field of the alarm policy when an alarm rule is created on the Cloud Eye console. This field is used to avoid frequent alarms. 0 indicates that the alarm is not suppressed and an alarm is generated when the condition is met. 300 indicates that an alarm is generated every 5 minutes after the alarm triggering condition is met. Minimum: 0 Maximum: 86400 Enumeration values: 0 300 600 900 1800 3600 10800 21600 43200 86400
level	No	Integer	Specifies the alarm severity, which can be: 1 (critical), 2 (major), 3 (minor) or 4 (informational).

Response Parameters

Status code: 200

**Table 5** Response body parameters
Parameter	Type	Description
policies	Array of Policy objects	Specifies the policy information.

**Table 6** Policy
Parameter	Type	Description
metric_name	String	Specifies the metric name of a resource. The name must start with a letter and contain only letter, digits, and underscores (_) . The length ranges from 1 to 64 characters. For example, cpu_util of an ECS indicates the CPU usage of the ECS. mongo001_command_ps in DDS indicates the command execution frequency. For details about the metric name of each service, see Service metric name.
period	Integer	Specifies the monitoring period of a metric, in seconds. The default value is 0. For example, for an event alarm, set this parameter to 0. 1 indicates the original monitoring period of the metric. For example, if the original period of an RDS metric is 60s, the RDS metric is calculated every 60 seconds as a data point. For details about the original period of each cloud service metric, see the Namespace column. 300 indicates that the metric is calculated every 5 minutes as a data point. Minimum: 0 Maximum: 86400 Enumeration values: 0 1 300 1200 3600 14400 86400
filter	String	Specifies the aggregation method. The value can be average, min, max, or sum.
comparison_operator	String	Specifies the threshold operator, which can be >, <, >=, <=, =, or ><.
value	Number	Specifies the threshold.
unit	String	Specifies the unit.
count	Integer	Specifies the number of counts that the threshold is met.
suppress_duration	Integer	Specifies the alarm suppression time, in seconds. This field corresponds to the last field of the alarm policy when an alarm rule is created on the Cloud Eye console. This field is used to avoid frequent alarms. 0 indicates that the alarm is not suppressed and an alarm is generated when the condition is met. 300 indicates that an alarm is generated every 5 minutes after the alarm triggering condition is met. Minimum: 0 Maximum: 86400 Enumeration values: 0 300 600 900 1800 3600 10800 21600 43200 86400
level	Integer	Specifies the alarm severity, which can be: 1 (critical), 2 (major), 3 (minor) or 4 (informational).

Status code: 400

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Specifies the status codes customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Specifies the request error message. Minimum: 0 Maximum: 256
request_id	String	Specifies the request ID. Minimum: 0 Maximum: 256

Status code: 500

**Table 8** Response body parameters
Parameter	Type	Description
error_code	String	Specifies the status codes customized by each cloud service when a request error occurs. Minimum: 0 Maximum: 256
error_msg	String	Specifies the request error message. Minimum: 0 Maximum: 256
request_id	String	Specifies the request ID. Minimum: 0 Maximum: 256

Example Requests

{
  "policies" : [ {
    "metric_name" : "disk_device_read_bytes_rate",
    "period" : 1,
    "filter" : "average",
    "comparison_operator" : ">",
    "value" : 75,
    "unit" : "byte/s",
    "count" : 3,
    "suppress_duration" : 10800,
    "level" : 2
  } ]
}

Example Responses

Status code: 200

Alarm policy modified.

{
  "policies" : [ {
    "metric_name" : "disk_device_read_bytes_rate",
    "period" : 1,
    "filter" : "average",
    "comparison_operator" : ">",
    "value" : 75,
    "unit" : "byte/s",
    "count" : 3,
    "suppress_duration" : 10800,
    "level" : 2
  } ]
}