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Cloud Monitor:DescribeSystemEventCount

Last Updated:Mar 30, 2026

Queries the number of times that a system event of a cloud service has occurred.

Operation description

Background information

You can call the DescribeSystemEventMetaList operation to query the cloud services supported by CloudMonitor and their system events.

Description

This topic provides an example on how to query the number of times that a system event of Elastic Compute Service (ECS) has occurred. The returned result shows that the specified system event has occurred three times.

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Test

RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

Product

string

No

The name of the cloud service.

You can call the DescribeSystemEventMetaList operation to obtain the value of the response parameter Product. The value of the Product parameter indicates the names of all cloud services in which the system events of your Alibaba Cloud account occurred. For more information, see DescribeSystemEventMetaList.

ECS

EventType

string

No

The type of the system event.

You can call the DescribeSystemEventMetaList operation to obtain the value of the response parameter EventType. The value of the EventType parameter indicates the types of system events that occurred for all cloud services in your Alibaba Cloud account. For more information, see DescribeSystemEventMetaList.

StatusNotification

Name

string

No

The name of the system event.

You can call the DescribeSystemEventMetaList operation to obtain the value of the response parameter Name. The value of the Name parameter indicates the names of system events that occurred for all cloud services in your Alibaba Cloud account. For more information, see DescribeSystemEventMetaList.

Instance:StateChange

Level

string

No

The level of the system event. Valid values:

  • Critical

  • Warn

  • Info

You can call the DescribeSystemEventMetaList operation to obtain the value of the response parameter Level. The value of the Level parameter indicates the levels of system events that occurred for all cloud services in your Alibaba Cloud account. For more information, see DescribeSystemEventMetaList.

Info

Status

string

No

The status of the system event.

You can call the DescribeSystemEventMetaList operation to obtain the value of the response parameter Status. The value of the Status parameter indicates the status of system events that occurred for all cloud services in your Alibaba Cloud account. For more information, see DescribeSystemEventMetaList.

Normal

GroupId

string

No

The ID of the application group.

17285****

SearchKeywords

string

No

The keywords that are used to search for the system event. Valid values:

  • If you want to search for the system event whose content contains a and b, set the value to a and b.

  • If you want to search for the system event whose content contains a or b, set the value to a or b.

ECS

StartTime

string

No

The beginning of the time range to query. Unit: milliseconds.

1635993541000

EndTime

string

No

The end of the time range to query. Unit: milliseconds.

1635993921000

For more information about common request parameters, see Common parameters.

Response elements

Element

Type

Description

Example

object

Code

string

The HTTP status codes.

Note

The status code 200 indicates that the request was successful.

200

Message

string

The returned message.

If the request was successful, a success message is returned. If the request failed, an error message is returned.

success

RequestId

string

The request ID.

C7A7B776-0ACE-5A93-9B07-DE8008D9CCDF

Success

string

Indicates whether the request was successful. Valid values:

  • true

  • false

true

SystemEventCounts

object

SystemEventCount

array<object>

The details of the system event.

object

Status

string

The status of the system event.

Normal

Time

integer

The time when the system event occurred. The value is a timestamp. Unit: milliseconds.

1635993751000

GroupId

string

The ID of the application group.

17285****

Product

string

The name of the cloud service in which the system event occurred.

ECS

InstanceName

string

The name of the instance.

ECS-test

Num

integer

The number of times that the system event has occurred.

3

ResourceId

string

The resource ID.

i-rj99xc6cptkk64ml****

Name

string

The name of the system event.

Instance:StateChange

Content

string

The description of the system event.

Instance state change notification

Level

string

The level of the system event. Valid values:

  • Critical

  • Warn

  • Info

Info

RegionId

string

The region ID.

cn-hangzhou

Examples

Success response

JSON format

{
  "Code": "200",
  "Message": "success",
  "RequestId": "C7A7B776-0ACE-5A93-9B07-DE8008D9CCDF",
  "Success": "true",
  "SystemEventCounts": {
    "SystemEventCount": [
      {
        "Status": "Normal",
        "Time": 1635993751000,
        "GroupId": "17285****",
        "Product": "ECS",
        "InstanceName": "ECS-test",
        "Num": 3,
        "ResourceId": "i-rj99xc6cptkk64ml****",
        "Name": "Instance:StateChange",
        "Content": "Instance state change notification",
        "Level": "Info",
        "RegionId": "cn-hangzhou"
      }
    ]
  }
}

Error codes

HTTP status code

Error code

Error message

Description

400 ParameterInvalid Illegal parameters.
500 InternalError The request processing has failed due to some unknown error.
403 AccessForbidden User not authorized to operate on the specified resource.
404 ResourceNotFound The specified resource is not found. The specified resource is not found.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.