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Edge Security Acceleration:ListLoadBalancerOriginStatus

Last Updated:Nov 07, 2025
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Query the status of origins in load balancers

Operation description

Query the status of origins under load balancers. You can pass multiple load balancer IDs at once, separated by commas. This is for load balancers that have monitors configured. It will probe the origins in the source address pools used by the load balancers and record the current status of each origin.

  • Healthy(healthy): The probe result is available.
  • Unhealthy(unhealthy): The probe result is unavailable.
  • Unknown(unknown): Unknown, the monitor has not yet probed.
  • Undetected(undetected): The load balancer to which the origin belongs is not bound to a monitor.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

  • Operation: the value that you can use in the Action element to specify the operation on a resource.
  • Access level: the access level of each operation. The levels are read, write, and list.
  • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
    • For mandatory resource types, indicate with a prefix of * .
    • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
  • Condition Key: the condition key that is defined by the cloud service.
  • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
OperationAccess levelResource typeCondition keyAssociated operation
esa:ListLoadBalancerOriginStatuslist
*Site
acs:esa:{#regionId}:{#accountId}:site/{#SiteId}
    none
none

Request parameters

ParameterTypeRequiredDescriptionExample
SiteIdlongYes

Site ID.

1159101787****
LoadBalancerIdsstringYes

Load balancer ID. When querying multiple load balancers, separate the IDs with commas. A maximum of 100 load balancer IDs can be passed at once. Load balancer IDs can be obtained by calling the ListLoadBalancers interface.

99874066052****,100892832360****
PoolTypestringNo

Source address pool type. Various source address pools are configured under the load balancer, including default pools, fallback pools, and primary region pools. Only the status of origins in the default pool affects the status of the load balancer itself. Passing default_pool means only querying the status of origins in the default source address pool under the load balancer.

default_pool

Response parameters

ParameterTypeDescriptionExample
object

Schema of Response

RequestIdstring

Request ID, used for tracking the request.

0AEDAF20-4DDF-4165-8750-47FF9C1929C9
OriginStatusarray<object>

List of origin statuses under the load balancer.

OriginStatusobject

Information about the origin status.

LoadBalancerIdlong

ID of the load balancer.

99874066052****
OriginIdlong

ID of the origin.

99750209487****
PoolIdlong

ID of the source address pool.

99750209487****
Statusstring

Status of the origin:

  • Healthy(healthy): The probe result is available.
  • Unhealthy(unhealthy): The probe result is unavailable.
  • Unknown(unknown): Unknown, the monitor has not yet probed.
  • Undetected(undetected): The load balancer to which the origin belongs is not bound to a monitor.
healthy
Reasonstring

Reason for the probe failure.

TCP connection error
PoolTypestring

The origin pool to which the source belongs, under this load balancer. Only 'default_pool' (default address pool) will be displayed; other types will return an empty string.

default_pool

Examples

Sample success responses

JSONformat

{
  "RequestId": "0AEDAF20-4DDF-4165-8750-47FF9C1929C9",
  "OriginStatus": [
    {
      "LoadBalancerId": 0,
      "OriginId": 0,
      "PoolId": 0,
      "Status": "healthy",
      "Reason": "TCP connection error",
      "PoolType": "default_pool"
    }
  ]
}

Error codes

HTTP status codeError codeError messageDescription
400InternalExceptionFailed to call the service. Try again later or contact technical support.Failed to call the service. Try again later or contact technical support.
400LoadBalancerNotExistThe specified load balancer name is invalid or load balancing is not enabled for your website.Make sure that you specify a valid load balancer name and load balancing is enabled. Then, try again.The specified load balancer name is invalid or load balancing is not enabled for your website.Make sure that you specify a valid load balancer name and load balancing is enabled. Then, try again.
404SiteNotFoundThe website does not exist or does not belong to you.The website does not exist or does not belong to you.

For a list of error codes, visit the Service error codes.