将 DescribeInstanceHealth 与 CLI 配合使用

以下代码示例演示如何使用 DescribeInstanceHealth。

CLI

AWS CLI

描述负载均衡器多个实例的运行状况

此示例描述指定负载均衡器多个实例的运行状况。

命令:

aws elb describe-instance-health --load-balancer-name my-load-balancer

输出：

{
  "InstanceStates": [
      {
          "InstanceId": "i-207d9717",
          "ReasonCode": "N/A",
          "State": "InService",
          "Description": "N/A"
      },
      {
          "InstanceId": "i-afefb49b",
          "ReasonCode": "N/A",
          "State": "InService",
          "Description": "N/A"
      }
  ]
}

描述负载均衡器单个实例的运行状况

此示例描述指定负载均衡器指定实例的运行状况。

命令:

aws elb describe-instance-health --load-balancer-name my-load-balancer --instances i-7299c809

以下是正在注册的实例的示例响应。

输出：

{
  "InstanceStates": [
      {
          "InstanceId": "i-7299c809",
          "ReasonCode": "ELB",
          "State": "OutOfService",
          "Description": "Instance registration is still in progress."
    }
  ]
}

以下是运行状况不佳的实例的示例响应。

输出：

{
  "InstanceStates": [
      {
          "InstanceId": "i-7299c809",
          "ReasonCode": "Instance",
          "State": "OutOfService",
          "Description": "Instance has failed at least the UnhealthyThreshold number of health checks consecutively."
      }
  ]
}

• 有关 API 的详细信息，请参阅AWS CLI 命令参考DescribeInstanceHealth中的。

PowerShell

用于 PowerShell

示例 1：此示例描述了向指定负载均衡器注册的实例的状态。

Get-ELBInstanceHealth -LoadBalancerName my-load-balancer

输出：

Description                   InstanceId                    ReasonCode                    State
-----------                   ----------                    ----------                    -----
N/A                           i-87654321                    N/A                           InService
Instance has failed at lea... i-12345678                    Instance                      OutOfService

示例 2：此示例描述了向指定负载均衡器注册的指定实例的状态。

Get-ELBInstanceHealth -LoadBalancerName my-load-balancer -Instance i-12345678

示例 3：此示例显示指定实例状态的完整描述。

(Get-ELBInstanceHealth -LoadBalancerName my-load-balancer -Instance i-12345678).Description

输出：

Instance has failed at least the UnhealthyThreshold number of health checks consecutively.

• 有关 API 的详细信息，请参阅 AWS Tools for PowerShell Cmdlet 参考DescribeInstanceHealth中的。