Part 10 · Distributed SearchChapter 34
Routing & Rescoring
Routing decides fan-out and creates hot shards. Rescoring pays for expensive logic only where it matters.
The question
Can I ask fewer shards, and score fewer documents?
The structure responsible
Routing key hash, and a rescore window
In this lab: Compare routing strategies, then set a rescore window and see what it promotes and what it misses.
building the index…