Querying the Status Tree of a Load Balancer¶

Function¶

This API is used to query the status tree of a load balancer and show information about all resources associated with the load balancer.

When admin_state_up is set to false and operating_status to OFFLINE for a backend server, DISABLED is returned for operating_status of the backend server in the response of this API.

URI¶

GET /v3/{project_id}/elb/loadbalancers/{loadbalancer_id}/statuses

**Table 1** Path Parameters¶
Parameter	Mandatory	Type	Description
project_id	Yes	String	Specifies the project ID.
loadbalancer_id	Yes	String	Specifies the load balancer ID.

Request Parameters¶

**Table 2** Request header parameters¶
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	Specifies the token used for IAM authentication.

Response Parameters¶

Status code: 200

**Table 3** Response body parameters¶
Parameter	Type	Description
statuses	LoadBalancerStatusResult object	Provides information about the load balancer status tree.
request_id	String	Specifies the request ID. The value is automatically generated.

**Table 4** LoadBalancerStatusResult¶
Parameter	Type	Description
loadbalancer	LoadBalancerStatus object	Specifies the statuses of the load balancer and its associated resources.

**Table 5** LoadBalancerStatus¶
Parameter	Type	Description
name	String	Specifies the load balancer name. Minimum: 1 Maximum: 255
provisioning_status	String	Specifies the provisioning status of the load balancer. The value can only be ACTIVE.
listeners	Array of LoadBalancerStatusListener objects	Lists the listeners added to the load balancer.
pools	Array of LoadBalancerStatusPool objects	Lists the backend server groups associated with the load balancer.
id	String	Specifies the load balancer ID.
operating_status	String	Specifies the operating status of the load balancer. The value can only be one of the following: ONLINE (default): The load balancer is running normally. DEGRADED: This status is displayed only when operating_status is set to OFFLINE for a backend server associated with the load balancer and the API for querying the load balancer status tree is called. DISABLED: This status is displayed only when admin_state_up of the load balancer is set to false and the API for querying the load balancer status tree is called.

**Table 6** LoadBalancerStatusListener¶
Parameter	Type	Description
name	String	Specifies the name of the listener added to the load balancer. Minimum: 1 Maximum: 255
provisioning_status	String	Specifies the provisioning status of the listener. The value can only be ACTIVE. Default: ACTIVE
pools	Array of LoadBalancerStatusPool objects	Specifies the operating status of the backend server group associated with the listener.
l7policies	Array of LoadBalancerStatusPolicy objects	Specifies the operating status of the forwarding policy added to the listener.
id	String	Specifies the listener ID.
operating_status	String	Specifies the operating status of the listener. The value can only be one of the following: ONLINE (default): The listener is running normally. DISABLED: This status is displayed only when admin_state_up of the load balancer or the listener is set to false and the API for querying the load balancer status tree is called.

**Table 7** LoadBalancerStatusPolicy¶
Parameter	Type	Description
action	String	Specifies whether requests are forwarded to another backend server group or redirected to an HTTPS listener. The value can be REDIRECT_TO_POOL or REDIRECT_TO_LISTENER.
id	String	Specifies the policy ID.
provisioning_status	String	Specifies the provisioning status of the forwarding policy. Default: ACTIVE
name	String	Specifies the policy name. Minimum: 1 Maximum: 255
rules	Array of LoadBalancerStatusL7Rule objects	Specifies the forwarding rule.

**Table 8** LoadBalancerStatusL7Rule¶
Parameter	Type	Description
id	String	Specifies the ID of the forwarding rule.
provisioning_status	String	Specifies the provisioning status of the forwarding rule.
type	String	Specifies the match content. The value can be HOST_NAME or PATH. HOST_NAME indicates that the domain name will be used for matching, and PATH indicates that the URL will be used for matching. The type value must be unique for each forwarding rule in a forwarding policy.

**Table 9** LoadBalancerStatusPool¶
Parameter	Type	Description
provisioning_status	String	Specifies the provisioning status of the backend server group. The value can only be ACTIVE.
name	String	Specifies the name of the backend server group. Minimum: 1 Maximum: 255
healthmonitor	LoadBalancerStatusHealthMonitor object	Specifies the health check results of backend servers in the load balancer status tree.
members	Array of LoadBalancerStatusMember objects	Specifies the backend server.
id	String	Specifies the ID of the backend server group.
operating_status	String	Specifies the operating status of the backend server group. The value can be one of the following: ONLINE: The backend server group is running normally. DEGRADED: This status is displayed only when operating_status of a backend server in the group is set to OFFLINE and the API for querying the load balancer status tree is called. DISABLED: This status is displayed only when admin_state_up of the backend server group or the associated load balancer is set to false and the API for querying the load balancer status tree is called.

**Table 10** LoadBalancerStatusHealthMonitor¶
Parameter	Type	Description
type	String	Specifies the health check protocol. The value can be TCP, UDP_CONNECT, or HTTP.
id	String	Specifies the health check ID.
name	String	Specifies the health check name. Minimum: 1 Maximum: 255
provisioning_status	String	Specifies the provisioning status of the health check. The value can only be ACTIVE.

**Table 11** LoadBalancerStatusMember¶
Parameter	Type	Description
provisioning_status	String	Specifies the provisioning status of the backend server. The value can only be ACTIVE. Default: ACTIVE
address	String	Specifies the IP address of the backend server.
protocol_port	Integer	Specifies the port used by the backend server to receive requests. The port number ranges from 1 to 65535.
id	String	Specifies the backend server ID.
operating_status	String	Specifies the operating status of the backend server. The value can be one of the following: ONLINE: The backend server is running normally. NO_MONITOR: No health check is configured for the backend server group to which the backend server belongs. DISABLED: The backend server is not available. This status is displayed only when admin_state_up of the backend server, or the backend server group to which it belongs, or the associated load balancer is set to false and the API for querying the load balancer status tree is called. OFFLINE: The cloud server used as the backend server is stopped or does not exist.

Example Requests¶

Querying the status tree of a load balancer

GET

https://{ELB_Endpoint}/v3/{project_id}/elb/loadbalancers/38278031-cfca-44be-81be-a412f618773b/statuses

Example Responses¶

Status code: 200

Successful request.

{
  "statuses" : {
    "loadbalancer" : {
      "name" : "lb-jy",
      "provisioning_status" : "ACTIVE",
      "listeners" : [ {
        "name" : "listener-jy-1",
        "provisioning_status" : "ACTIVE",
        "pools" : [ {
          "name" : "pool-jy-1",
          "provisioning_status" : "ACTIVE",
          "healthmonitor" : {
            "type" : "TCP",
            "id" : "7422b51a-0ed2-4702-9429-4f88349276c6",
            "name" : "",
            "provisioning_status" : "ACTIVE"
          },
          "members" : [ {
            "protocol_port" : 80,
            "address" : "192.168.44.11",
            "id" : "7bbf7151-0dce-4087-b316-06c7fa17b894",
            "operating_status" : "ONLINE",
            "provisioning_status" : "ACTIVE"
          } ],
          "id" : "c54b3286-2349-4c5c-ade1-e6bb0b26ad18",
          "operating_status" : "ONLINE"
        } ],
        "l7policies" : [ ],
        "id" : "eb84c5b4-9bc5-4bee-939d-3900fb05dc7b",
        "operating_status" : "ONLINE"
      } ],
      "pools" : [ {
        "name" : "pool-jy-1",
        "provisioning_status" : "ACTIVE",
        "healthmonitor" : {
          "type" : "TCP",
          "id" : "7422b51a-0ed2-4702-9429-4f88349276c6",
          "name" : "",
          "provisioning_status" : "ACTIVE"
        },
        "members" : [ {
          "protocol_port" : 80,
          "address" : "192.168.44.11",
          "id" : "7bbf7151-0dce-4087-b316-06c7fa17b894",
          "operating_status" : "ONLINE",
          "provisioning_status" : "ACTIVE"
        } ],
        "id" : "c54b3286-2349-4c5c-ade1-e6bb0b26ad18",
        "operating_status" : "ONLINE"
      } ],
      "id" : "38278031-cfca-44be-81be-a412f618773b",
      "operating_status" : "ONLINE"
    }
  }
}

Status Codes¶

Status Code	Description
200	Successful request.

Error Codes¶

See Error Codes.

last updated: 2023-03-02 13:42