RisingWave
Apache-2.0 streaming database for fresh, queryable data
Databases / Data · Apache-2.0 · 9.4k
Reviewed 2026-10-18 · last push 2026-10-19 · repo checked 2026-10-19
What's Good
Apache-2.0 (risingwavelabs/risingwave), release v3.1.0 (2026-09-21), written in Rust. It aims to replace the Debezium + Kafka + Flink + serving DB chain with one system: native CDC from Postgres and MySQL, ingestion from Kafka, Pulsar and Kinesis, batch loads from S3, and streaming SQL with materialized views. Docker and Kubernetes quick starts. ★~9.4k.
The Catch
Streaming SQL is a different mental model from batch: state size, watermarks and view design decide your costs. A cluster has several components and uses object storage for state. The project's marketing leans on agentic AI; the core value is incremental views, not AI. RisingWave Cloud is the commercial option.
Verdict
A real Flink alternative you can write in SQL — great for live dashboards and alerts.
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