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Elasticsearch documents aren't searchable immediately due to the indexing process.

A document in Elasticsearch isn't searchable right after it's saved due to the refresh process.

An inverted index helps search engines quickly find documents containing specific terms.

Elasticsearch aliases allow zero-downtime switching between indices for applications.

Elasticsearch uses analyzers and synonyms to improve search accuracy by connecting similar words.

Database indexing speeds up data retrieval by allowing quick lookups.

Optimizing Elasticsearch involves using filters, caching, and measuring performance.

Elasticsearch ILM automates data management through defined lifecycle phases.