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
- Uniform metrics step name semantics
- Source.getDefaultOutputCoder() - add a version that allows access to a CoderRegistry
- Coders should have meaningful equals methods
- Support snappy in CompressedSource and FileBasedSink
- Re. BEAM-974 - PubSub.read/write() .withCoder requirement should raise a more informative error in Dataflow
- Catch bad FractionConsumed values in the beam SDK.
- Consider automatic coder registration mechanism, such as AutoService
- IO ITs: add validation of row content
- Consider removing TimeDomain from user APIs
- StateSpecs.combiningValue interface is very awkward to use
- Docs
- Java not yet supported