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
- Extension for sketch-based statistics
- DebuggingWordCountTest Fails on Windows
- Infer coders in SDK prior to handing off pipeline to Runner
- PTransform's should always set a Coder on their output PCollections
- Go SDK support for portable user state
- Consider adding support for batching state requests
- User reports 4 minutes to process 1 million line CSV in DirectRunner
- AppliedPTransform is used as a key in hashmaps but PTransform is not hashable/equality-comparable
- SDKs should measure time spent for active element
- Move HashingFn from test -> main to make it more accessible
- Docs
- Java not yet supported