Wordpress EC2 instance stops working regularly

Question

I have configured my wordpress website with EC2 instance but it happened several times that the website stops working and shows me the error of "504 Gateway Time-out"

Then i restart the instance and it starts working again, why it is happening repeatedly?

Accepted Answer

Hello.

What EC2 instance type are you using?  
For example, in the case of T-based instance types such as T2.micro, once the CPU burst credits are used up, the performance will drop to the baseline throughput, so this may be related.  
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-performance-instances.html

Please also check the EC2 load status and system logs.  
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/troubleshoot-unreachable-instance.html#instance-console-console-output

Wordpress EC2 instance stops working regularly

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