Why Can’t Elasticsearch Find My Logs? Uncovering Full‑Text Search Pitfalls and Tokenizer Tweaks
This article explains why large‑scale Elasticsearch clusters may miss log entries during keyword searches, dives into the fundamentals of inverted indexes and tokenization, and demonstrates practical index‑time and query‑time tokenizer optimizations—including custom analyzers for English and Chinese—to dramatically improve search recall and precision.
