All Products
Search
Document Center

Cloud Monitor:DescribeUnhealthyHostAvailability

Last Updated:Oct 30, 2025

Call the DescribeUnhealthyHostAvailability operation to query a list of unhealthy servers.

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

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

Id

array

Yes

The task ID.

123456

integer

No

The task ID.

123***

Response elements

Element

Type

Description

Example

object

Code

string

The status code.

Note

A value of 200 indicates that the request was successful.

200

Message

string

The error message.

User not authorized to operate on the specified resource.

RequestId

string

The request ID.

ACBDBB40-DFB6-4F4C-8957-51FFB233969C

Success

boolean

Indicates whether the operation was successful. Valid values: -true: The operation was successful. -false: The operation failed.

true

UnhealthyList

object

NodeTaskInstance

array<object>

Information about the list of unhealthy servers.

array<object>

Id

integer

The task ID.

123******

InstanceList

object

String

array

A list of instance IDs.

string

The instances.

i-*****

Examples

Success response

JSON format

{
  "Code": "200",
  "Message": "User not authorized to operate on the specified resource.",
  "RequestId": "ACBDBB40-DFB6-4F4C-8957-51FFB233969C",
  "Success": true,
  "UnhealthyList": {
    "NodeTaskInstance": [
      {
        "Id": 0,
        "InstanceList": {
          "String": [
            "i-*****"
          ]
        }
      }
    ]
  }
}

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.