🔍

Elasticsearch Learning Roadmap

Distributed search and analytics — indexing, querying, and cluster operations.

Estimated time:4–6 weeks

1🌱

Phase 1 — Fundamentals

Indices, documents, shards

Mapping & field types

CRUD via REST API

Basic search queries (match, term, bool)

2🔍

Query DSL deep dive

Aggregations (terms, date histogram, nested)

Analyzers & tokenizers

Relevance scoring (BM25)

3⚙️

Shard allocation & rebalancing

Index lifecycle management (ILM)

Snapshot & restore

Cluster health & node roles

4📈

important

Query performance tuning

Hot-warm-cold architecture

Security (RBAC, TLS, API keys)

Begin with interview questions to assess your current level.