Amazon Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. With EC2, you can launch virtual servers, known as instances, to run applications on the AWS infrastructure.
When working with EC2, you might encounter an error message stating InstanceNotFound. This typically occurs when attempting to access or manage an EC2 instance using an incorrect or non-existent instance ID.
The error message usually appears as follows:
InstanceNotFound: The instance ID 'i-1234567890abcdef0' does not exist
The InstanceNotFound error indicates that the specified instance ID cannot be found. This can happen if the instance ID is incorrect, or if the instance has been terminated and is no longer available in your AWS account.
To resolve the InstanceNotFound error, follow these steps:
Ensure that the instance ID you are using is correct. You can find the correct instance ID in the AWS Management Console under the EC2 dashboard.
Navigate to the EC2 Console and check the status of your instances. If the instance has been terminated, it will not appear in the list of running instances.
Ensure that you are operating in the correct AWS region. Instance IDs are unique within a region, so switching regions might help you locate the instance.
If you prefer using the command line, you can verify the instance using the AWS CLI:
aws ec2 describe-instances --instance-ids i-1234567890abcdef0
This command will return details about the instance if it exists. If the instance is not found, double-check the ID and region.
By following these steps, you should be able to resolve the InstanceNotFound error. Always ensure that you have the correct instance ID and are operating in the correct region. For more information, refer to the EC2 Instances Documentation.
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