Home Made CobbleDB Replaces DynamoDB at Perplexity to Cut Query Latency 5x and Reduce Cloud Storage

Perplexity has transitioned its search infrastructure from Amazon DynamoDB to an internally developed Rust-based key-value store called CobbleDB. This migration aims to improve efficiency by reducing query latency fivefold and lowering cloud storage expenses. The custom solution is designed to handle high volumes of document batches more effectively than the previous managed database service.