AWS service for monitoring, storing, and accessing log files from EC2 instances and other AWS services. Like having a centralized filing system for all system messages and errors.
DevOps teams use CloudWatch Logs to troubleshoot application issues by searching through millions of log entries.
All four services centralize logs from cloud resources and applications, support search and filtering, and integrate with alerting/metrics. AWS CloudWatch Logs is tightly integrated with CloudWatch alarms/metrics and AWS services; Azure uses Log Analytics with KQL queries; GCP uses Log Explorer with Logs-based metrics; OCI uses Logging with service connectors for routing and analysis.