amazon-web-services - AWS Cloudwatch 心跳警报

Question

我有一个应用程序，每分钟都会向 AWS 发送一个自定义 Cloudwatch 指标。这应该充当心跳，所以我知道该应用程序还活着。

现在我想对此指标发出警报，以便在心跳停止时通知我。我尝试使用不同的 cloudwatch 警报统计数据(包括“平均值”和“数据样本”)并在给定时间内设置小于 1 的警报阈值来实现此目的。但是，在所有情况下，如果我的应用程序死机并停止报告心跳，则警报只会进入“数据不足”状态，而永远不会进入“警报”状态。

我知道我可以在“数据不足”状态下发出通知，但我希望它显示为警报。这在 Cloudwatch 中可能吗？

谢谢

马特

Answer 1

我认为警报进入“数据不足”状态与丢失数据的处理方式有关。作为doc状态:

Similar to how each alarm is always in one of three states, each specific data point reported to CloudWatch falls under one of three categories:

• Not breaching (within the threshold)
• Breaching (violating the threshold)
• Missing

You can specify how alarms handle missing data points. Choose whether to treat missing data points as:

• missing (The alarm looks back farther in time to find additional data points)
• notBreaching (Treated as a data point that is within the threshold)
• breaching (Treated as a data point that is breaching the threshold)
• ignore (The current alarm state is maintained)

The default behavior is missing.

所以我想将丢失的数据点指定为违规可以解决问题:)