What methods and tools have you used for log analysis in your last project?

For log analysis in my last project, I used several approaches and tools:

• Local viewing and filtering: standard Unix commands (grep, awk, sed) for quick log searches.
• Logging with levels: configured logging levels (INFO, DEBUG, ERROR) using log4j or SLF4J to make filtering important messages easier.
• Centralized logging systems: used the ELK stack (Elasticsearch, Logstash, Kibana) for collecting, indexing, and visualizing logs.
• Monitoring and alerting: integrated logs with monitoring systems (e.g., Prometheus + Grafana) to track anomalies and respond quickly.

This comprehensive approach allows for effective analysis of application behavior and quick problem detection.