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Loki

Loki (officially Grafana Loki) ek open-source, horizontally-scalable, multi-tenant log aggregation…

Overview
🌟

Loki — Quick Facts

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Property: Detail

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Category: Log Aggregation / Observability

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Developer: Grafana Labs

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License: AGPL v3 (core); Grafana Labs also…

Topic 1
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Infobox

📚 | Property | Detail | |---|---| | Category | Log Aggregation / Observability | |…
Topic 2
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Itihaas aur Background

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Prometheus ke saath naturally…

🔑

Elasticsearch se zyada…

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Kubernetes environments ke liye…

🎯

Grafana me seamlessly kaam kare…

Topic 3
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Architecture

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Distributor: Client se log entries…

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Ingester: Log entries ko memory me…

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Querier: LogQL queries execute…

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Query Frontend: Query scheduling,…

Topic 4
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Core Concepts

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Example: {app="nginx",…

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Labels se log streams group hoti…

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Loki sirf labels index karta hai,…

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Ek unique combination of labels =…

Topic 5
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LogQL — Query Language

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Stream selector: {app="nginx"} —…

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Line filter: |= "error"…

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Parser: | json, | logfmt, |…

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Label filter: | status >= 400 —…

Topic 6
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Loki Architecture Diagram

✨ `mermaid flowchart TD subgraph Agents A1[Promtail<br>Log Collector] A2[Grafana…
Topic 7
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Loki vs Elasticsearch

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Loki choose karo jab: budget tight…

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Elasticsearch choose karo jab:…

Topic 8
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Data Collection — Agents

🚀 Loki ko logs bhejne ke liye agents (collectors) use hote hain: | Agent | Developer |…
Topic 9
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Deployment Modes

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Write Path: Distributor + Ingester…

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Read Path: Query Frontend +…

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Backend: Compactor + Index Gateway…

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Yeh mode zyada tar production…

Topic 10
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Grafana Integration

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Grafana me "Explore" section me…

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LogQL queries likho — real-time…

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Logs ke saath corresponding…

🎯

Loki data se dashboard panels…

Topic 11
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Use Cases

🎯 1. Kubernetes Logging: Pod logs centrally collect karna — Promtail/Agent automatically…
Topic 12
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Fayde (Benefits)

⭐ 1. Cost-Effective: Label-only indexing + object storage = Elasticsearch se significantly…
Topic 13
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Challenges

🔑 1. No Full-Text Index: Arbitrary text search slow hai compared to Elasticsearch — kyunki…
Topic 14
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Glossary

✨ | Term | Meaning | |---|---| | Label | Key-value pair jo log stream ko identify karta hai…
Topic 15
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Disclaimer

🌟 Yeh article sirf educational aur informational purposes ke liye hai. Loki aur Grafana,…
Comparison
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Loki vs Elasticsearch

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Indexing Strategy: Sirf labels index…

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Storage Cost: Low (compressed chunks in…

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Query Speed (specific search): Slower…

Diagram
📥 ⚙️ 🔬 💡

Visual Flow

📊 Diagram visualization — details in narration
Related Topics

See Also

📖

Grafana

🔗

Prometheus

💡

Elasticsearch

📚

Logstash

🔑

Kibana

🌐

Fluentd

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 1

Loki ka sabse sahi definition kya hai?

Quick Quiz
🧠 QUIZ TIME

Quiz — Question 2

Loki ka 'Category' kya hai?

Complete! 🎉
COMPLETE

Loki Complete!

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✅

Loki Complete

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Grafana

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