Instance stop working

Question

Hello,

I am running a simple service on t2.micro instance but sometimes the instance simply stop responding after few days of working and I can no longer connect to it even if it is till running. What should I do to avoid this interruption?

Riku_Kobayashi · Accepted Answer

Hello.

Is your EC2 instance's CPU usage or memory usage high?  
If these values ​​are high, there is a possibility that the instance specifications are insufficient.  
Also check the CloudWatch metrics to see how much CPU credits are being consumed.  
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-credits-baseline-concepts.html

Please follow the steps in the document below to check the system log and see if there are any errors.  
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-console.html#instance-console-console-output

Melsad · Answer

Many thanks. This was the problem and the cpu utilization was up to 99%. Will need to upgrade the instance.

Instance stop working

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