Loki

Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate. It does not index the contents of the logs, but rather a set of labels for each log stream.

• Query Syntax
  • LogQL stream selectors
  • LogQL filter expressions
  • LogQL metric queries
• Current best practices
• Pitfalls of graphing topk queries from Prometheus or Loki within Grafana