Unexpected termination of EC2 instance

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My instance (i-0addfa8225c243241) rebooted automatically yesterday. It stopped automatically today, I cannot connect to it. So I had to reboot it via console. Is there any problem with the physical host?

Log attached

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  • Although unexpected reboots or restarts are rare, there are several reasons these might occur. The following are the most common reasons: The instance failed one or both of its status checks, The underlying hardware hosting your instance was faulty and Amazon EC2 restarted the instance to move it to new, healthy hardware, Scheduled maintenance occurred on your instance that required a reboot, A user or application inside your server rebooted the instance, a kernel bug. There are several actions you can take for resolution: View Status Checks, View System Logs, View Reboot history

Tiny
asked 2 years ago323 views
1 Answer
0

Hello,

To see the scheduled events that occurred on the Instance, preview the Personal Health Dashboard or through the EC2 Console View scheduled events

When there is a scheduled event on an Instance, AWS sends notification email on the registered root account email.

After the Stop and Start of the Instance it moves the Instance to a new underlying healthy host. The instance should be passing health check now.

In order to automatically handle such events in future, I suggest configuring the CloudWatch alarm action based on the system error metric. This way, when the instance experiences system status check failures, CloudWatch will stop/start the instance to reduce the downtime of an instance Create alarms that stop, terminate, reboot, or recover an instance.

For your reference, please review AWS article Why is my EC2 Windows instance down with a system status check failure or status check 0/2 for the steps to be taken when the instance is unreachable and is failing system status health checks.

That said, you can defer the scheduled event and reschedule it to another convenient date Reschedule a scheduled event

Should you need further clarification, reach out to AWS Premium Support

answered 2 years ago

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