How to monitor an Amazon EC2 instance

Posted by sektor on Server Fault See other posts from Server Fault or by sektor
Published on 2014-08-19T14:40:13Z Indexed on 2014/08/19 16:21 UTC
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amazon-ec2

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monitoring

Is there a way to monitor ec2 instances without using cloudwatch? I ask this since ec2 instances are basically VPS's, and using output from commands like top, vmstat, htop in scripts may not give the clear picture as the CPU cycles are shared between other instances as well.

What should one keep in mind while monitoring CPU usage on a VPS?, should one have alerts based on top load or % of CPU used by user processes coupled with other factors like processes waiting on disk io, hardware interrupts?

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