Querying an Alarm Rule¶
Function¶
This API is used to query an alarm rule based on the alarm rule ID.
URI¶
GET /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
GET https://{Cloud Eye endpoint}/V1.0/{project_id}/alarms/al1441967036681YkazZ0deN
Request¶
None
Response¶
Response parameters
Parameter
Type
Description
metric_alarms
Array of objects
Specifies the list of alarm objects.
For details, see Table 2.
Table 2 metric_alarms data structure description¶ Parameter
Type
Description
alarm_name
String
Specifies the alarm rule name.
alarm_description
String
Provides supplementary information about the alarm rule.
metric
Object
Specifies the alarm metric.
For details, see Table 3.
condition
Object
Specifies the alarm triggering condition.
For details, see Table 7.
alarm_enabled
Boolean
Specifies whether to enable the alarm rule.
alarm_level
Integer
Specifies the alarm severity, which can be 1, 2 (default), 3 or 4, indicating critical, major, minor, and informational, respectively.
alarm_action_enabled
Boolean
Specifies whether to enable the action to be triggered by an alarm.
alarm_actions
Array of objects
Specifies the action to be triggered by an alarm.
For details, see Table 5.
ok_actions
Array of objects
Specifies the action to be triggered after the alarm is cleared.
For details, see Table 6.
alarm_id
String
Specifies the alarm rule ID.
update_time
Long
Specifies when the alarm status changed. The time is a UNIX timestamp and the unit is ms.
alarm_state
String
Specifies the alarm status, which can be
ok: The alarm status is normal.
alarm: An alarm is generated.
insufficient_data: The required data is insufficient.
Table 3 metric data structure description¶ Parameter
Type
Description
namespace
String
Query the namespace of a service. For details, see Services Interconnected with Cloud Eye.
dimensions
Array of objects
Specifies the list of metric dimensions.
For details, see Table 4.
metric_name
String
Specifies the metric ID. For example, if the monitoring metric of an ECS is CPU usage, metric_name is cpu_util. For details, see Services Interconnected with Cloud Eye.
Table 4 dimensions data structure description¶ Parameter
Type
Description
name
String
Specifies the dimension. For example, the ECS dimension is instance_id. For details about the dimension of each service, see the key column in Services Interconnected with Cloud Eye.
value
String
Specifies the dimension value, for example, an ECS ID.
Enter 1 to 256 characters.
Table 5 alarm_actions data structure description¶ Parameter
Type
Description
type
String
Specifies the alarm notification type.
notification: indicates that a notification will be sent.
autoscaling: indicates that a scaling action will be triggered.
notificationList
Array of strings
Specifies the list of objects to be notified if the alarm status changes.
Note
The IDs in the list are strings.
Table 6 ok_actions data structure description¶ Parameter
Type
Description
type
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
Array of strings
Specifies the list of objects to be notified if the alarm status changes.
Note
The IDs in the list are strings.
Table 7 condition data structure description¶ Parameter
Type
Description
period
Integer
Specifies the interval (seconds) for checking whether the configured alarm rules are met.
filter
String
Specifies the data rollup method. The following methods are supported:
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
String
Specifies the alarm threshold operator, which can be >, =, <, >=, or <=.
value
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 in Services Interconnected with Cloud Eye to 80.
unit
String
Specifies the data unit. Enter up to 32 characters.
count
Integer
Specifies the number of consecutive occurrence times that the alarm policy was met. Supported range: 1 to 5
Example response
{ "metric_alarms": [ { "alarm_name":"alarm-ipwx", "alarm_description":"", "metric": { "namespace":"SYS.ELB", "dimensions": [ { "name":"lb_instance_id", "value":"44d06d10-bce0-4237-86b9-7b4d1e7d5621" } ], "metric_name":"m8_out_Bps" }, "condition": { "period":300, "filter":"sum", "comparison_operator":">=", "value":0, "unit":"", "count":1 }, "alarm_enabled":true, "alarm_level": 2, "alarm_action_enabled":true, "alarm_actions": [ { "type":"notification", "notificationList":["urn:smn:region:68438a86d98e427e907e0097b7e35d48:sd"] } ], "ok_actions": [ { "type":"notification", "notificationList":["urn:smn:region:68438a86d98e427e907e0097b7e35d48:sd"] } ], "alarm_id":"al1498096535573r8DNy7Gyk", "update_time":1498100100000, "alarm_state":"alarm" } ] }
Returned Values¶
Normal
200
Abnormal
Returned Value
Description
400 Bad Request
Request error.
401 Unauthorized
The authentication information is not provided or is incorrect.
403 Forbidden
You are forbidden to access the page requested.
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.