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DocumentationGrafana Loki
Open source
Grafana Loki
Grafana Loki is a set of open source components that can be composed into a fully featured logging stack. A small index and highly compressed chunks simplifies the operation and significantly lowers the cost of Loki.
Overview
Unlike other logging systems, Loki is built around the idea of only indexing metadata about your logs’ labels (just like Prometheus labels). Log data itself is then compressed and stored in chunks in object stores such as Amazon Simple Storage Service (S3) or Google Cloud Storage (GCS), or even locally on the filesystem.
Explore
Learn about Loki
Learn about the Loki architecture and components, the various deployment modes, and best practices for labels.
Set up Loki
View instructions for how to configure and install Loki, migrate from previous deployments, and upgrade your Loki environment.
Configure Loki
View the Loki configuration reference and configuration examples.
Send logs to Loki
Select one or more clients to use to send your logs to Loki.
Manage Loki
Learn how to manage tenants, log ingestion, storage, queries, and more.
Query with LogQL
Inspired by PromQL, LogQL is Grafana Loki’s query language. LogQL uses labels and operators for filtering.
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Related documentation
Related resources from Grafana Labs
Additional helpful documentation, links, and articles:
Video
Getting started with logging and Grafana Loki
See a demo of the updated features in Loki, and how to create metrics from logs and alert on your logs with powerful Prometheus-style alerting rules.
Video
Essential Grafana Loki configuration settings
This webinar focuses on Grafana Loki configuration including agents Promtail and Docker; the Loki server; and Loki storage for popular backends.
Video
Scaling and securing your logs with Grafana Loki
This webinar covers the challenges of scaling and securing logs, and how Grafana Enterprise Logs powered by Grafana Loki can help, cost-effectively.