Hi Fluss Community, The Apache Fluss Project Management Committee (PMC) has invited Yang Wang to become a committer, and we are pleased to announce that Yang Wang is now a Fluss committer.
Yang has been actively contributing to the Fluss project since its early days. His main work has focused on the server and KV storage engine, along with the Flink connector and client, with a strong emphasis on new query and storage capabilities, exactly-once semantics, and production stability. Key contributions include the WAL changelog image mode for Primary Key tables, RocksDB observability and resource control (metrics reporting, per-component memory metrics, shared rate limiter, and block cache options), async metadata request processing, the AlignedRow row encoding, and remote storage orphan-file cleanup. He also fixed several critical reliability issues, including an ISR state leak causing deadlock during rolling upgrades, a ReplicaFetcher busy-loop retry storm, RequestChannel EventLoop backpressure, a Netty ByteBuf leak, and lookuper thread-safety problems. Notably, Yang has driven multiple FIPs that significantly enhance Fluss's analytical and storage capabilities: FIP-21: Aggregation Merge Engine[1] - Introduces an aggregation merge engine for Primary Key tables, with Flink integration, partial updates, roaring bitmap aggregate functions, and exactly-once semantics via producer offset snapshots and undo recovery. FIP-10: Support Log RecordBatch Filter Pushdown[2] - Adds a V1 log batch format with statistics collection and server-side filter execution with client-side and Flink integration, significantly reducing the data transferred and scanned for filtered reads. FIP-38: Global Secondary Index[3] - Designs global secondary indexing for Fluss tables to accelerate lookups on non-primary-key columns. Please join us in congratulating Yang Wang[4] on becoming a Fluss committer! [1]: https://cwiki.apache.org/confluence/spaces/FLUSS/pages/399279341/FIP-21+Aggregation+Merge+Engine [2]: https://cwiki.apache.org/confluence/spaces/FLUSS/pages/373886990/FIP-10+Support+Log+RecordBatch+Filter+Pushdown [3]: https://cwiki.apache.org/confluence/spaces/FLUSS/pages/421954258/FIP-38+Global+Secondary+Index [4]: https://github.com/platinumhamburg regards, Yunhong (Swuferhong)
