Field guides for running Elasticsearch and OpenSearch well.
August 12, 2026 · QueryCrunch
Every observability estate has a collector story, usually by accident. How to choose between Elastic Agent, Logstash, and the OpenTelemetry Collector, where transforms belong, and when a buffer earns its keep.
Read moreJuly 21, 2026 · QueryCrunch
The fork happened at 7.10, and the projects have been diverging since. A field checklist of the differences that matter when you evaluate a move in either direction — clients, security, vector search, dashboards, and snapshots.
Read moreJune 30, 2026 · QueryCrunch
Before you reach for vector search, get the fundamentals in order: a judgment list, a metric, analyzer and mapping fixes, and measured query tuning. A first-pass process that works on Elasticsearch and OpenSearch alike.
Read moreJune 9, 2026 · QueryCrunch
Index lifecycle management is where retention policy becomes storage cost. Working recipes for hot/warm/cold/frozen phases, the min_age semantics that trip everyone, and the checks that keep policies actually running.
Read moreMay 14, 2026 · QueryCrunch
Oversharding wastes heap; undersharding stalls recovery. The working rules for shard count and size on Elasticsearch and OpenSearch, and how to check where your cluster stands today.
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