What monitoring, logging, and metrics tools did you use? What approach in microservices?

In Java projects, I often use a combination of tools for monitoring and logging:

• Prometheus + Grafana for collecting and visualizing metrics. Prometheus is well-suited for microservices architecture due to its support for pull-based data collection and the ability to gather metrics from each service.
• ELK Stack (Elasticsearch, Logstash, Kibana) or EFK (Elasticsearch, Fluentd, Kibana) for centralized logging. Logs are collected from each microservice and aggregated for easy search and analysis.
• Zipkin or Jaeger for distributed tracing, which helps track call chains between microservices and identify bottlenecks.

The approach in microservices is built on centralized collection of metrics and logs from each service to ensure transparency and quick problem detection. Each service exports metrics to Prometheus, logs are sent to a centralized storage, and tracing helps understand interactions between services. Automation and integration with alerting systems (e.g., Alertmanager) are important for timely responses.