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
- extend join-library to support 3+ PCollections
- Better API for querying metrics
- TestPipeline / PipelineOptionsFactory crashes on to unregistered options
- Enforce all inputs and outputs are properly declared in Transform Hierarchy
- ApiSurface tests should run on the jar, not the un-shaded code.
- Abstract Coder translation from Runner API Protos
- Add ValidatesRunner Tests for Custom Windows, WindowCoders that do not define good equals methods
- Add the ability to override values set with @Default.YYY on PipelineOptions
- @DefaultCoder annotation should work with Create
- Add a registration mechanism for WindowFns and their URNs.
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- Java not yet supported