Function

This API is used to query scaling action logs based on search criteria. The results are displayed by page.

Search criteria can be the start time, end time, start line number, and number of records.
If no search criteria are specified, a maximum of 20 scaling action logs can be queried by default.

URI

GET /autoscaling-api/v1/{project_id}/scaling_activity_log/{scaling_group_id}

You can type the question mark (?) and ampersand (&) at the end of the URI to define multiple search criteria. Scaling action logs can be searched by all optional parameters in the following table. For details, see the example request.

**Table 1** Parameter description
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the project ID.
scaling_group_id	Yes	String	Specifies the AS group ID.
start_time	No	String	Specifies the start time that complies with UTC for querying scaling action logs. The format of the start time is yyyy-MM-ddThh:mm:ssZ.
end_time	No	String	Specifies the end time that complies with UTC for querying scaling action logs. The format of the end time is yyyy-MM-ddThh:mm:ssZ.
start_number	No	Integer	Specifies the start line number. The default value is 0. The minimum parameter value is 0.
limit	No	Integer	Specifies the number of query records. The default value is 20. The value ranges from 0 to 100.

Request Message

Request parameters
None
Example request
This example shows how to query the scaling action logs of the AS group with ID e5d27f5c-dd76-4a61-b4bc-a67c5686719a.
```
GET https://{Endpoint}/autoscaling-api/v1/{project_id}/scaling_activity_log/e5d27f5c-dd76-4a61-b4bc-a67c5686719a
```

Response Message

Response parameters

**Table 2** Response parameters
Parameter	Type	Description
total_number	Integer	Specifies the total number of query records.
start_number	Integer	Specifies the start line number.
limit	Integer	Specifies the maximum number of resources to be queried.
scaling_activity_log	Array of scaling_activity_log objects	Specifies scaling action logs. For details, see Table 3.

**Table 3** **scaling_activity_log** field description
Parameter	Type	Description
status	String	Specifies the status of the scaling action. SUCCESS: The scaling action has been performed. FAIL: Performing the scaling action failed. DOING: The scaling action is being performed.
start_time	String	Specifies the start time of the scaling action. The time format must comply with UTC.
end_time	String	Specifies the end time of the scaling action. The time format must comply with UTC.
id	String	Specifies the scaling action log ID.
instance_removed_list	String	Specifies the names of the instances removed from the AS group after the scaling action is complete. The instance names are separated using commas (,).
instance_deleted_list	String	Specifies the names of the instances removed and deleted from the AS group after the scaling action is complete. The instance names are separated using commas (,).
instance_added_list	String	Specifies the names of the instances added to the AS group after the scaling action is complete. The instance names are separated using commas (,).
scaling_value	String	Specifies the number of added or removed instances in the scaling action.
description	String	Specifies the description of the scaling action.
instance_value	Integer	Specifies the number of instances in the AS group.
desire_value	Integer	Specifies the expected number of instances for the scaling action.

Example response

{
  "limit": 20,
  "scaling_activity_log": [
    {
      "id": "66e0f775-c4ac-4b52-9d5c-f93ba217aa5f",
      "instance_value": 1,
      "desire_value": 0,
      "scaling_value": 1,
      "start_time": "2019-03-18T16:00:11Z",
      "end_time": "2019-03-18T16:00:32Z",
      "instance_added_list": null,
      "instance_deleted_list": "as-config-bblh-ONQE551S",
      "instance_removed_list": null,
      "status": "SUCCESS",
      "description": "{\"reason\":[{\"change_reason\":\"RECURRENCE\",\"old_value\":1,\"scaling_policy_name\":\"as-policy-bvfk\",\"change_time\":\"2019-03-18T16:00:00Z\",\"new_value\":0,\"scaling_policy_id\":\"05545d3d-ccf9-4bca-ae4f-1e5e73ca0bf6\"}]}"
    },
    {
      "id": "c3a1fff6-84a3-4cbc-8ac0-e3b0f645ecd8",
      "instance_value": 0,
      "desire_value": 1,
      "scaling_value": 1,
      "start_time": "2019-03-16T10:21:11Z",
      "end_time": "2019-03-16T10:25:12Z",
      "instance_added_list": "as-config-bblh-ONQE551S",
      "instance_deleted_list": null,
      "instance_removed_list": null,
      "status": "SUCCESS",
      "description": "{\"reason\":[{\"change_reason\":\"DIFF\",\"old_value\":0,\"change_time\":\"2019-03-16T10:21:11Z\",\"new_value\":1}]}"
    }],
    "total_number": 2,
    "start_number": 0
}

Returned Values

Normal
200

Abnormal

Returned Value	Description
400 Bad Request	The server failed to process the request.
401 Unauthorized	You must enter the username and password to access the requested page.
403 Forbidden	You are forbidden to access the requested page.
404 Not Found	The server could not find the requested page.
405 Method Not Allowed	You are not allowed to use the method specified in the request.
406 Not Acceptable	The response generated by the server could not be accepted by the client.
407 Proxy Authentication Required	You must use the proxy server for authentication to process the request.
408 Request Timeout	The request timed out.
409 Conflict	The request could not be processed due to a conflict.
500 Internal Server Error	Failed to complete the request because of an internal service error.
501 Not Implemented	Failed to complete the request because the server does not support the requested function.
502 Bad Gateway	Failed to complete the request because the request is invalid.
503 Service Unavailable	Failed to complete the request because the system is unavailable.
504 Gateway Timeout	A gateway timeout error occurred.

Error Codes

See Error Codes.

Querying Scaling Action Logs

Function

URI

Request Message

Response Message

Returned Values

Error Codes