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Amazon EC2 Auto Scaling 问题排查

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 Amazon 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 Amazon Web Services Support （在 “支持” Amazon Web Services Management Console、“支持中心” 中）或使用 Amazon EC2 Auto Scaling 标签在 re Amazon : Pos t 上提问。