Harper Argues Against the Multi-System Stack and Releases 5.2

Renato Losio — Thu, 20 Aug 2026 06:20:00 GMT

The database platform Harper advocates for a single-runtime architecture that keeps application code and data together, with its benchmark against a Vercel-based stack reporting significantly better performance on live, personalized-data workloads. Harper recently released version 5.2, with a new record cache and more throughput per node.

By Renato Losio

Spotify Builds External Index to Enable Low Latency Point Queries on its Data Lake

Leela Kumili — Wed, 12 Aug 2026 14:26:00 GMT

Spotify introduced external indexing architecture for Apache Parquet data lakes that enables low-latency point queries without replicating datasets into operational databases. The approach maps lookup keys to Parquet files and row locations, allowing targeted reads from cloud object storage while supporting analytics, machine learning, AI applications, and online services from the same datasets.

By Leela Kumili

InfoQ - Data Lake

Harper Argues Against the Multi-System Stack and Releases 5.2

Spotify Builds External Index to Enable Low Latency Point Queries on its Data Lake