Rishav Sagar

Rishav Sagar

Amazon India

Experienced backend developer with 8+ years specializing in distributed systems and cloud technologies. Currently working as SDE 2 at AWS OpenSearch, contributing to OpenSearch’s core functionalities.

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Context-Aware Segments: Solving the “Scatter-Read” Problem

Talk
Traditional OpenSearch segments are context-blind, scattering data across multiple segments. We introduce Context-Aware Segments (CAS), an architecture that brings "sharding" logic to the segment level. By enforcing document locality during indexing, we slashed query latency and minimized data footprint through superior pruning and compression.