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Hello.
What kind of applications are you running on EC2?
Also, is it possible that the application has increased the load on EC2?
Please check the CPU usage rate and memory usage rate.
0
if you have nmap installed you can try
sudo nmap --script broadcast-dhcp-discover -e eth0
to see what is going on.
Also maybe check the status of dhcp service and restart it.
respondido hace 7 meses
I am guessing that will not help me post mortem. This, I guess works for when it is happening.
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A handful of services written in Go plus a datadog agent. I am afraid we don't have memory usage rate metrics exported to CW, but the CPU metrics show 1.3-1.4 CPU used. We use CodeDeploy to deploy onto this EC2 instance...
EDIT: I do see a CloudWatch alarm being raised for the 90+% utilisation for an extended period (5+ minutes).
I suspect that networkd may not be able to communicate with the kernel due to CPU or memory load.
Yes, I think that one of the services spiraled and crashed.