You can determine the status of your spot request via spot request status code and massage. You can access spot request status information on the spot instance page of the EC2 console of the AWS management console.
- Amazon EC2 spot instance you can take advantage of unused EC2 capacity in the AWS cloud. Spot Instance are available at upto 90% discount compared to the on demand prices.
- You can use spot Instance for various test and development workloads.
- You also have the options to hibernate stop or terminate your spot instance. When EC2 reclaims the capacity back with Two minutes of notice.
Question - When would you spot instance get interrupted ?
- Primary Reason would be Amazon EC2 capacity requirement (eg. On demand, Reserved Instance)
- Secondary, if you have chased to set a max spot price and the spot price raise above this.
- In case of hibernate, your instance gets hibernated and the RAM data persisted in the case of stop, your instance gets shutdown and RAM is cleared.
- With hibernate, Spot instance will pause and resume around any interruptions so your workloads can pick up from exactly where they left off.