Past Memory Big Data

Dec 12, 2025 · Big Data

How Uber Reduced Data Freshness from Hours to Minutes Using Flink Streaming

Uber rebuilt its data‑lake ingestion pipeline with Apache Flink, replacing batch jobs with a streaming architecture that cuts data freshness from hours to minutes, lowers compute usage by 25%, and solves challenges like small‑file proliferation, partition skew, and checkpoint‑commit synchronization at petabyte scale.