Flink 2.3’s native S3 FS halves checkpoint time and drops Hadoop baggage
Flink 2.3 adds experimental flink-s3-fs-native, a Hadoop‑free S3 filesystem built on AWS SDK v2. It cuts checkpoint times roughly in half and eliminates a 13‑30 MB Hadoop dependency, giving a single plugin for exactly‑once sinks, streaming, and batch. Companies can swap the JAR and gain faster, simpler, more secure S3 access.