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
- ReadFromBigQuery doesn't support DATETIME type
- GroupByKey doesn't seem to work with FixedWindows in DirectRunner
- DataFrame API: Add support for order-sensitive operations
- Worker endpoints are unset in StartWorkerRequest.
- Add a native ParquetIO.ReadRows transform
- Add support for out-of-band pickling (pickle 5) in PickleCoder
- KafkaIO does not handle null keys
- BigQuery pipelines which query INFORMATION_SCHEMA views can fail to determine a query location
- Prefer java binary from $JAVA_HOME in JavaJarServer
- SDK should clean-up registered timer/data/... handles and not leak them with the BeamFnDataClient
- Docs
- Java not yet supported