lundi 7 septembre 2015

AWS ec2 instance high CPU Usage

We have a ec2 instance that has around 10% usage on average. Sometimes we get spikes that are around 95% - at which we have an alert that triggers so we can check the log. I've checked the log and it looks as if another company owned site crawled our site a bunch of times causing the high spike, which triggered a mysql error to a php script no longer in production. Is this normal for a site to spike out your server?




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