CloudWatch is a monitoring service offered by Amazon Web Services (AWS). It allows administrators to monitor the performance, status, and health of Amazon EC2 instances, Amazon RDS instances, and Amazon S3 buckets.
CloudWatch logs provide detailed information about the activities that occurred on an Amazon EC2 instance, Amazon RDS instance, or Amazon S3 bucket. This information can be used to diagnose and troubleshoot issues.
CloudWatch logs can be used to monitor the following activities:
• Instance health
• EC2 instance performance
• Amazon RDS instance performance
• S3 bucket performance
PRO TIP: CloudWatch Logs is a log management service built into AWS. It is designed to work with other AWS services, such as Amazon Elastic Compute Cloud (EC2) and Amazon CloudTrail.
CloudWatch Logs can be used to monitor, store, and access your log files from Amazon EC2 instances, AWS CloudTrail, or other sources. You can then use the CloudWatch console or the Amazon CloudWatch API to view the logs, create metric filters and alarms, and configure where the logs are sent.
If you are not familiar with Amazon CloudWatch Logs, we recommend that you review the Getting Started with Amazon CloudWatch Logs guide before using this feature.
CloudWatch also provides the ability to I/O log, which logs all read and write operations to an Amazon S3 bucket. This information can be used to diagnose and troubleshoot issues with the Amazon S3 bucket.
CloudWatch logs can be used with the Amazon CloudWatch consoles and the Amazon CloudWatch Command Line Interface (CLI). The Amazon CloudWatch Console allows administrators to view and manage CloudWatch logs, as well as generate reports.
The Amazon CloudWatch CLI allows administrators to manage CloudWatch logs from the command line.
CloudWatch logs provide a detailed view of the activity that occurred on an Amazon EC2 instance, Amazon RDS instance, or Amazon S3 bucket. CloudWatch logs can be used to diagnose and troubleshoot issues.
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