Infrastructure Primitives
Design a Distributed Search System (Elasticsearch clone)
A sharded, replicated inverted-index engine supporting full-text search, ranking, and near-real-time indexing at scale.
Open and Simulate this Architecture in InfraDraftCore Architectural Components
Inverted Index Engine
Per-shard term-to-document index, the core structure behind fast full-text lookups.
Index Sharding & Routing Layer
Distributes documents across shards and routes queries to the right ones.
Replica Shards
Read scaling and high availability if a primary shard node fails.
Document Ingestion / Analysis Pipeline
Tokenizes, stems, and analyzes text before it enters the index.
Query Coordinator
Scatter-gathers a query across shards and merges scored results.
Relevance Ranking Engine
BM25/TF-IDF scoring that orders results by relevance, not just match.
Cluster State Manager
Master node tracking shard allocation and cluster health.
Write-Ahead Translog
Guarantees durability for writes not yet flushed into a searchable segment.