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504542565 avatar 504542565 commented on September 27, 2024

什么是CloudWatch

Amazon CloudWatch 实时监控您的 Amazon Web Services (AWS) 资源以及您在 AWS 中运行的应用程序。
可以使用 CloudWatch 收集和跟踪指标,这些指标是可衡量的相关资源和应用程序的变量。

CloudWatch的四大功能

  • 指标:从AWS的服务中收集数据放到metrics,然后通过available statistics显示到控制台上
  • 警报:通过对指标的判断,可以发出邮件,或执行auto scaling
  • 日志:会将lambda/RDS等执行的日志放到log中,方便处理
  • 对事件处理的功能:通过EC2实例或其他服务触发,调用到其他的服务,比如调用lambda

EC2的监控指标

  • 可以查看CPU,磁盘,网络等指标,但是没有内存的指标,AWS承诺不会动客户的任何数据,
    也不会在EC2实例上安装任何的插件, 客户可以在市场上找一些流行的性能监控软件取到EC2的内存,
    然后调用cloudwatch的API然后展示到如下监控的指标列表中。

EC2创建警报

  • 可根据各类指标创建警报

创建事件

  • 可以设置特定的时间或者时间区间,调用一次lamda函数

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