Have you used the Fluentd tool for log and data processing?

Yes, I have used Fluentd for collecting, processing, and routing logs and data. Fluentd allows centralizing logs from different sources, transforming them with filters, and sending them to various storage systems, such as Elasticsearch, databases, or cloud services.

Example of use: configure Fluentd to read logs from application files, add a filter for parsing JSON, and send data to a monitoring system.