Queries the health status of one or more backend servers.

Debug

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Request parameters

Parameter Type Required? Example value Description
Action String Yes DescribeHealthStatus

The name of this action.

Value: DescribeHealthStatus
LoadBalancerId String Yes lb-bp1qjwo61pqz3ahltv0mw

The ID of the SLB instance.
RegionId String Yes cn-hangzhou-d

The ID of the region to which the SLB instance belongs.
ListenerPort Integer No 80

Optional. The frontend port used by the SLB instance.

Value range: 1 to 65535

Note If you do not set this parameter, the health check status of all ports is returned.
ListenerProtocol String No https

Optional. The frontend protocol used by the SLB instance.

Response parameters

Parameter Type Example value Description
BackendServers

A list of backend servers.
 └ServerId String vm-234

The ECS instance ID or ENI ID.
 └ServerHealthStatus String abnormal

The health status of a backend server:

  • normal: The backend server is healthy.
  • abnormal: The backend server is unhealthy.
  • unavailable: The health check is not completed.
 └EniHost String 192.168.0.1

The IP address of an ENI.
 └ListenerPort Integer 80

The frontend port used by the SLB instance.
 └Port Integer 70

The backend port used by the SLB instance.
 └Protocol String https

The frontend protocol used by the SLB instance.
 └ServerIp String 192.168.0.2

The IP address of an ECS instance.
 └Type String ecs

The backend server type. Valid values:

  • ecs: ECS instance (default)
  • eni: Elastic Network Interface (ENI)
RequestId String 365F4154-92F6-4AE4-92F8-7FF34B540710

The ID of the request.

Examples

Request example


http(s)://[Endpoint]/? Action=DescribeHealthStatus
&LoadBalancerId=lb-bp1qjwo61pqz3ahltv0mw
&<CommonParameters>

Response examples

XML format 

<DescribeHealthStatusResponse>
  <RequestId>365F4154-92F6-4AE4-92F8-7FF34B540710</RequestId>
  <BackendServers>
    <BackendServer>
      <ServerId>vm-233</ServerId>
      <ServerHealthStatus>normal</ServerHealthStatus>
    </BackendServer>
    <BackendServer>
      <ServerId>vm-234</ServerId>
      <ServerHealthStatus>abnormal</ServerHealthStatus>
    </BackendServer>
  </BackendServers>
</DescribeHealthStatusResponse>

JSON format 

{
	"RequestId":"196EC328-B566-4226-B435-8697723205EF",
	"BackendServers":{
		"BackendServer":[
			{
				"ServerId":"i-bp1do02x7n4nua4k72um",
				"ServerHealthStatus":"abnormal",
				"Port":80,
				"ListenerPort":443
			}
		]
	}
}

Error codes

See common error codes.