Cloudwatch报警：“cb9978ge CPUUtilization”

Question

我是AWS的新手，我有一个非常愚蠢的问题。 我每天都会收到几次AWS Notifications电子邮件，其中包含以下内容：

You are receiving this email because your Amazon CloudWatch Alarm "cb9978ge CPUUtilization" in the US-West-2 region has entered the ALARM state, because "Threshold Crossed: 1 datapoint (99.666) was greater than or equal to the threshold (80.0)." at "Tuesday 03 December, 2013 04:33:06 UTC".

Alarm Details:
- Name:                       cb9978ge CPUUtilization
- Description:                cb9978ge CPUUtilization
- State Change:               OK -> ALARM
- Reason for State Change:    Threshold Crossed: 1 datapoint (99.666) was greater than or equal to the threshold (80.0).
- Timestamp:                  Tuesday 03 December, 2013 04:33:06 UTC
- AWS Account:                468642797431

Threshold:
- The alarm is in the ALARM state when the metric is GreaterThanOrEqualToThreshold 80.0 for 300 seconds. 

Monitored Metric:
- MetricNamespace:            AWS/EC2
- MetricName:                 CPUUtilization
- Dimensions:                 [InstanceId = i-cb9978ge]
- Period:                     300 seconds
- Statistic:                  Average
- Unit:                       not specified

State Change Actions:
- OK: 
- ALARM: [arn:aws:sns:us-west-2:468642797431:cb9978ge_CPUUtilization_80percent_for5mins_ormore]
- INSUFFICIENT_DATA: 

有谁知道这意味着什么？

非常感谢

Answer 1

您创建的警报是cb9978ge CPUUtilization。

此警报将监控i-cb9978ge的实例CPUUtilization。如果此实例的Average CPUUtilization超出80% consecutive 300 seconds，则此警报会获得triggered。

此警报的trigger action是通过SNS主题发送到send you an email。