What it does
Amazon CloudWatch is AWS's monitoring and observability service for metrics, logs, traces, dashboards, and alarms. An AWS application can send OpenTelemetry signals through the CloudWatch pipeline, while alarms evaluate metrics and notify responders or take an automated action. It is most useful for workloads already running on AWS; operators should choose the signals and retention they need because CloudWatch exposes several distinct telemetry and query features.
The CloudWatch OpenTelemetry quickstart shows a concrete path for a new instrumented application: use the OpenTelemetry SDK and Collector, send a metric, log record, and trace to CloudWatch, then inspect the metric in Query Studio, the log in CloudWatch Logs, and the trace in Transaction Search. The example takes about 20 minutes according to the guide. For an operational check, select a meaningful metric and create an alarm with a threshold that reflects the service's behavior. CloudWatch alarms can notify a channel or trigger an action when the threshold is breached. A dashboard can then place related metrics together, which helps responders compare service behavior instead of watching a single number. CloudWatch fits naturally with AWS resources and account permissions. The official pricing URL opened for this research returned only a title/navigation shell, so the record leaves the pricing classification and exact charges unresolved rather than inferring them from a search result. Cost depends on the selected telemetry features and usage; review the current AWS pricing page and estimate the workload before enabling high-volume data collection.
Strengths
- The OpenTelemetry quickstart demonstrates sending metrics, logs, and traces through a documented pipeline.
- Metric alarms can notify responders or take an action when a threshold is breached.
- Custom dashboards can place related service metrics together for investigation.
Watch out for
- The service is tightly integrated with AWS accounts and resources, so teams outside that ecosystem may prefer a provider-neutral monitoring backend.
- CloudWatch gathers evidence and alerts, but responders still need to diagnose and fix the underlying issue.
Best for
- Applications and infrastructure already running on AWS.
- Teams that want AWS metrics, logs, traces, dashboards, and metric alarms in one service.
- Operators able to choose telemetry retention and estimate service usage before broad rollout.
Sources
- Amazon CloudWatch Monitoring and Observability (Oct 25, 2026)
- Quickstart: Send metrics, logs, and traces to CloudWatch with OpenTelemetry (Oct 25, 2026)
- Metrics in Amazon CloudWatch (Oct 25, 2026)
- Using Amazon CloudWatch alarms (Oct 25, 2026)
- Creating a customized CloudWatch dashboard (Oct 25, 2026)
- Amazon CloudWatch Pricing (Oct 25, 2026)