Help & DocumentationCloud Load Balancer

Query Application CLB Health Check Status

Last updated: 2019-12-14 09:49:39

Contents：

1. API Description

API DescribeForwardLBHealthStatus is used to query the health check result of application-based cloud load balancer instances.

Domain for API access: lb.api.qcloud.com

2. Request Parameters

The following request parameter list only provides API request parameters. Common request parameters need to be added when the API is called. For more information, refer to Common Request Parameters. The Action field for this API is DescribeForwardLBHealthStatus.

Parameter Name Required Type Description
loadBalancerIds.n Yes String Uniform ID of application-based cloud load balancer instance, i.e. unLoadBalancerId.

3. Response Parameters

Parameter Name Type Description
code Int Common error code; 0: Succeeded; other values: Failed. For more information, please refer to Common Error Code in the Error Code page.
message String Module error message description depending on API.
codeDesc String Error code. For a successful operation, "Success" will be returned. For a failed operation, a message describing the failure will be returned.
data Array Returned array.

data Array Structure:

Parameter Name Type Description
loadBalancerName String Name of cloud load balancer.
unLoadBalancerId String Uniform ID of the cloud load balancer.
listener Array Listener array.

listener Array Structure:

Parameter Name Type Description
listenerId String ID of application-based cloud load balancer listener.
protocol Int Protocol type of application-based cloud load balancer listener. 1: HTTP, 4: HTTPS.
loadBalancerPort Int Listening port of the application-based cloud load balancer listener.
listenerName String Name of application-based cloud load balancer listener.
rules Array Forwarding rule set of application-based cloud load balancer listener.

rules Array Structure:

Parameter Name Type Description
locationId String ID of forwarding rule of application-based cloud load balancer listener.
domain String Domain for the forwarding rule of application-based cloud load balancer listener.
url String Path of the forwarding rule of application-based cloud load balancer listener.
backends Array Backend CVM array.

backends Array Structure:

Parameter Name Type Description
ip String Private IP of CVM.
port Int Service port of CVM.
healthStatus Int Health check result. 1: healthy; 0: unhealthy

4. Example

Input:

https://lb.api.qcloud.com/v2/index.php?Action=DescribeForwardLBHealthStatus
&<Common request parameters>
&loadBalanceId=lb-6efswuxa

Output:

{
    "code": 0,
    "message": "",
    "codeDesc": "Success",
    "data": [
        {
            "loadBalancerName": "123",
            "unLoadBalancerId": "lb-6efswuxa",
            "listener": [
                {
                    "listenerId": "lbl-fh7o7b9o",
                    "listenerName": "lna",
                    "protocol": 1,
                    "loadBalancerPort": 9090,
                    "rules": [
                        {
                            "locationId": "loc-3n8v5uy6",
                            "domain": "*.alibaba.com",
                            "url": "/second",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                        {
                            "locationId": "loc-7h3nl8dc",
                            "domain": "*.alibaba.com",
                            "url": "/first",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                        {
                            "locationId": "loc-3mkbad8s",
                            "domain": "~^.baidu.com",
                            "url": "/second",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                        {
                            "locationId": "loc-pt6nsy2q",
                            "domain": "~^.domain.edu.cn$",
                            "url": "/1234&#",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                        {
                            "locationId": "loc-h3wu30tc",
                            "domain": ".emaoe.com",
                            "url": "/1234&#",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                        {
                            "locationId": "loc-78ifmow4",
                            "domain": ".example.com",
                            "url": "/1234&#",
                            "backends": [
                                {
                                    "ip": "172.17.8.4",
                                    "port": 80,
                                    "healthStatus": 1
                                }
                            ]
                        },
                    ]
                }
            ]
        }
    ]
}