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An AWS-hosted application on EC2 instances with Aurora database is encountering DECRYP_ERROR issues, only identified post-failure in automated tests. Implement a solution for real-time monitoring of these errors with minimal operational impact.
A
Set up a custom metric in CloudWatch, integrate with CloudTrail and Amazon SNS for alerting.
B
Deploy a Lambda function to periodically check CloudWatch logs for the error keyword and trigger Amazon SNS notifications.
C
Establish a metric filter in CloudWatch Logs for the error pattern, link to an alarm that notifies via Amazon SNS when the error threshold is exceeded.
D
Use the CloudWatch agent on EC2 to monitor and report DECRYP_ERROR metrics, with Amazon SNS configured for error notifications.
