Why do my google cloud compute instances always unexpectedly restart?

Question

Help! Help! Help!

It is really annoying and I almost cannot bear it anymore! I\'m using google cloud compute engine instances but they often unexpectedly restart wit

Answer 1

This sounds like Preemptible VM instance.

Preemptible instances function like normal instances, but have the following limitations:

• Compute Engine might terminate preemptible instances at any time due to system events. The probability that Compute Engine will terminate a preemptible instance for a system event is generally low, but might vary from day to day and from zone to zone depending on current conditions.
• Compute Engine always terminates preemptible instances after they run for 24 hours.

To check if your instance is preemptible using gcloud cli, just run

gcloud compute instances describe instance-name --format="(scheduling.preemptible)"

Result

scheduling:
  preemptible: false

change "instance-name" to real name.

Or simply via UI, click on compute instance and scroll down:

To check for system operations performed on your instance, you can review it using following command:

gcloud compute operations list