Tell about your experience using the ELK stack for logging and data analysis.

The ELK stack consists of Elasticsearch, Logstash, and Kibana, and is widely used for centralized logging and data analysis. In my experience, I configured Logstash to collect logs from various servers and applications, filter and transform the data, and then send it to Elasticsearch for indexing and quick search. I used Kibana for visualizing logs, creating dashboards, and monitoring system status. This approach allows for quick error detection, performance analysis, and event auditing within the infrastructure.