Amazon EC2 Auto Scaling groups - Amazon CloudWatch
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Amazon EC2 Auto Scaling groups

CloudWatch Application Insights supports the following metrics:

CPUCreditBalance

CPUCreditUsage

CPUSurplusCreditBalance

CPUSurplusCreditsCharged

CPUUtilization

DiskReadBytes

DiskReadOps

DiskWriteBytes

DiskWriteOps

EBSByteBalance%

EBSIOBalance%

EBSReadBytes

EBSReadOps

EBSWriteBytes

EBSWriteOps

NetworkIn

NetworkOut

NetworkPacketsIn

NetworkPacketsOut

StatusCheckFailed

StatusCheckFailed_Instance

StatusCheckFailed_System