Tencent Music Tech Team
Jan 4, 2022 · Big Data
Elasticsearch Fundamentals: Architecture, Indexing, Query DSL and Search Mechanics
Elasticsearch is a distributed, schemaless search engine built on Lucene that stores JSON documents in sharded indexes, uses immutable segments and merges, provides a flexible Query DSL with aggregations and relevance scoring, and executes distributed query‑then‑fetch searches with features like scrolling, optimistic locking, and zero‑downtime reindexing.
AnalyzersDistributed ArchitectureElasticsearch
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