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对 Amazon EC2 Auto Scaling 中的问题进行故障排除

Amazon EC2 Auto Scaling 提供特定的描述性错误消息来帮助您排查问题。可以从扩展活动的描述中发现错误消息。

检索来自扩缩活动的错误消息

要从扩展活动描述中检索错误消息，请使用describe-scaling-activities命令。您拥有可追溯到 6 周的扩展活动记录。扩展活动按开始时间排序，首先列出最新的扩展活动。

要查看特定 Auto Scaling 组的扩展活动，请使用以下命令。

aws autoscaling describe-scaling-activities --auto-scaling-group-name my-asg

在下面的示例响应中，StatusCode 包含活动的当前状态，StatusMessage 包含错误消息。

{
    "Activities": [
        {
            "ActivityId": "3b05dbf6-037c-b92f-133f-38275269dc0f",
            "AutoScalingGroupName": "my-asg",
            "Description": "Launching a new EC2 instance: i-003a5b3ffe1e9358e.  Status Reason: Instance failed to complete user's Lifecycle Action: Lifecycle Action with token e85eb647-4fe0-4909-b341-a6c42d8aba1f was abandoned: Lifecycle Action Completed with ABANDON Result",
            "Cause": "At 2021-01-11T00:35:52Z a user request created an AutoScalingGroup changing the desired capacity from 0 to 1.  At 2021-01-11T00:35:53Z an instance was started in response to a difference between desired and actual capacity, increasing the capacity from 0 to 1.",
            "StartTime": "2021-01-11T00:35:55.542Z",
            "EndTime": "2021-01-11T01:06:31Z",
            "StatusCode": "Cancelled",
            "StatusMessage": "Instance failed to complete user's Lifecycle Action: Lifecycle Action with token e85eb647-4fe0-4909-b341-a6c42d8aba1f was abandoned: Lifecycle Action Completed with ABANDON Result",
            "Progress": 100,
            "Details": "{\"Subnet ID\":\"subnet-5ea0c127\",\"Availability Zone\":\"us-west-2b\"...}",
            "AutoScalingGroupARN": "arn:aws:autoscaling:us-west-2:123456789012:autoScalingGroup:283179a2-f3ce-423d-93f6-66bb518232f7:autoScalingGroupName/my-asg"
        },
     ...
    ]
}

有关输出中字段的描述，请参阅 Amazon EC2 Auto Scaling API 参考中的活动。

要查看已删除组的扩展活动

要在删除 Auto Scaling 组后查看伸缩活动，describe-scaling-activities请在命令中添加以下--include-deleted-groups选项。

aws autoscaling describe-scaling-activities --auto-scaling-group-name my-asg --include-deleted-groups

以下是示例响应，其中包含已删除组的扩展活动。

{
    "Activities": [
        {
            "ActivityId": "e1f5de0e-f93e-1417-34ac-092a76fba220",
            "AutoScalingGroupName": "my-asg",
            "Description": "Launching a new EC2 instance.  Status Reason: Your Spot request price of 0.001 is lower than the minimum required Spot request fulfillment price of 0.0031. Launching EC2 instance failed.",
            "Cause": "At 2021-01-13T20:47:24Z a user request update of AutoScalingGroup constraints to min: 1, max: 5, desired: 3 changing the desired capacity from 0 to 3.  At 2021-01-13T20:47:27Z an instance was started in response to a difference between desired and actual capacity, increasing the capacity from 0 to 3.",
            "StartTime": "2021-01-13T20:47:30.094Z",
            "EndTime": "2021-01-13T20:47:30Z",
            "StatusCode": "Failed",
            "StatusMessage": "Your Spot request price of 0.001 is lower than the minimum required Spot request fulfillment price of 0.0031. Launching EC2 instance failed.",
            "Progress": 100,
            "Details": "{\"Subnet ID\":\"subnet-5ea0c127\",\"Availability Zone\":\"us-west-2b\"...}",
            "AutoScalingGroupState": "Deleted",
            "AutoScalingGroupARN": "arn:aws:autoscaling:us-west-2:123456789012:autoScalingGroup:283179a2-f3ce-423d-93f6-66bb518232f7:autoScalingGroupName/my-asg"
        },
     ...
    ]
}

关闭缩放活动

如果您需要在不受扩展策略或计划操作干扰的情况下调查问题，则有以下选择：

其他故障排除资源

以下页面提供了有关对 Amazon EC2 Auto Scaling 问题进行故障排除的其他信息。

以下 AWS 资源也可能有所帮助：

故障排除通常需要由专家或多个帮助者进行迭代查询和发现。如果您在尝试本节中的建议后仍然遇到问题，请联系 AWS Support （在 “支持” AWS Management Console、“支持中心” 中）或使用 Amazon EC2 Auto Scaling 标签在 re AWS : Pos t 上提问。