beam
https://github.com/apache/beam
Java
Apache Beam is a unified programming model for Batch and Streaming data processing.
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- Issues
- "An Example Test for a Composite Transform" in Python is broken
- Support GROUP BY ROLLUP
- Enable all Nexmark queries for Dataflow Runner V2
- Support PARTITIONED BY on Beam's SQL DDL
- Using Any for unsupported type: typing.Sequence[~T]
- JmsIO should allow using custom timestamp policy to track watermark
- Apply basic fusion to Java DirectRunner to avoid keeping all intermittent results in memory
- Suspected data loss (and/or duplicates) bug in BigQueyrServicesImpl
- combine should be parallelizable in many cases
- Analytic functions can't be planned with filter.
- Docs
- Java not yet supported