Sandesh Kumar
Sandesh is a Software Developer working on the OpenSearch Project, with a focus on enhancing search performance and cluster resilience. He is also a maintainer of OpenSearch (core) and hosts the Search Backlog & Triage Community Meeting every Wednesday, where he engages with the community to review open issues, prioritize feature requests, and drive improvements to OpenSearch’s Search components.
Sessions
Scale
Search
Stories
Constant-Time Aggregations with Star-Tree in OpenSearch
Talk
Discover how OpenSearch breaks linear scaling. Inspired by Apache Pinot, the Star-Tree index moves performance dependency from document count to field cardinality. Learn how we extended Lucene’s DocValues to build multi-dimensional materialized views that deliver sub-second analytics on billion-scale datasets for observability workloads.