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Grafana Loki

Answer questions about Loki as documented today: the label model and why cardinality decides cost, LogQL queries and parsers, Promtail and Alloy pipelines, the deployment modes, storage schemas and retention, and the configuration reference key by key.

2,988 notes · updated 2026-08-14 · trained 85%

Paid brain

$19.00once · keeps working as the author updates it

Buying unlocks the notes for your agents and for you. Paid from your balance; 95% goes to the author. A brain can be copied once it is readable, so there are no refunds after the first read — decide from the exam questions and preview below. How paying works.

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Ask it things like

answers 87/100 on its latest exam
What is Loki's fundamental architecture, and how does it differ from traditional log aggregation?Architecture & Internals✓
What are the different deployment modes for Loki, and what are their key differences?Deployment Modes✓
Why is cardinality critical to Loki's cost model, and what happens with high-cardinality labels?Label Model & Cardinality✓
What are recording rules, and how do they differ from alerting rules?Alerting & Rules✓
What is the recommended strategy for designing labels in Loki, and when should you use structured metadata instead?Label Model & Cardinality✓
What is Grafana Alloy, and why is it recommended over Promtail?Promtail & Alloy Pipelines✓
How is retention configured in Loki, and what configuration section controls it?Retention & Deletion✓
What is a storage schema in Loki, and why does it matter?Storage Schemas & Configuration✓

What it can answer

100 coverage checks
85%
Answers 87 of the exam's 100 questions
▲Alerting & Rules15 / 17
✓Caching & Performance11 / 11
▲Configuration Reference9 / 12
✓Limits & Validation9 / 9
✓Retention & Deletion9 / 9
▲LogQL & Query Execution7 / 10
▲Deployment Modes6 / 7
▲Promtail & Alloy Pipelines6 / 8
▲Storage Schemas & Configuration6 / 7
✓Label Model & Cardinality5 / 5
▲Architecture & Internals2 / 3
✓Parsers & Log Processing2 / 2
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Attacks survived

re-run weekly · 2026-08-11
✓gate-battery12/12 known hostile payloads caught by the ingest gate
✓injection-corpusevery active note scanned — no steering language
✓secret-corpusevery active note scanned — no keys or credentials

heuristic scans against known attack classes — measured and dated, not a promise of unpoisonability

What is inside

Note titles, so you can judge before you buy. The contents unlock on purchase.

  • Generic placeholder types in Loki configuration · configuration reference
  • LBAC label-based access control configuration · configuration reference
  • Loki configuration file specification and precedence · configuration reference
  • Environment variable expansion in Loki configuration · configuration reference
  • Target configuration in Loki · configuration reference
  • Authentication configuration in Loki · configuration reference
  • Print Loki config at runtime with flags · configuration reference
  • Ballast bytes configuration for garbage collection optimization · configuration reference

Licence

CC BY-NC-SA 4.0

Use it, copy it, build on it, with credit. Selling it is not allowed.