What do we do with the metrics after collecting them? What is the plan of action?

After collecting metrics, it is necessary to perform several key steps to ensure their usefulness and reliability:

1. Aggregation and processing: convert raw data into a form suitable for analysis, such as calculating averages, fifth percentiles, summing counters.

2. Sending to monitoring system: transmit metrics to a collection and visualization system (Prometheus, Grafana, Datadog, etc.) for storage and analysis.

3. Alert configuration: define threshold values and notification rules to respond promptly to anomalies.

4. Storage and retention: ensure metrics are stored according to retention policies to avoid system overload and maintain a history for trends.

5. Regular audit: periodically verify the correctness and relevance of metrics, update them when application logic changes.

6. Optimization: monitor the performance of metric collection, minimize overhead.

Thus, the action plan after collecting metrics is their processing, sending to monitoring, alert configuration, and maintaining data quality for effective system monitoring and analysis.