WeiZhong94 opened a new pull request #9655: [FLINK-14017][python] Support to start up Python worker in process mode. URL: https://github.com/apache/flink/pull/9655 ## What is the purpose of the change *This pull request reimplements the apache-beam container script `boot.go` in python with some minor changes to support the beam python worker running in process mode and avoid introducing go-lang dependencies to Flink.* ## Brief change log - *Add `boot.py`, a python implementation of `boot.go` in "beam-sdks-python-container" project of Apache Beam for launching the python worker.* - *Different from `boot.go` of Apache Beam, `boot.py` supports specify the path of python executable file, and the default pip command is `python -m pip` instead of `/usr/local/bin/pip`.* - *Different from `boot.go` of Apache Beam, `boot.py` does not restrict the platform of user-specified apache beam sdk package to `linux`.* ## Verifying this change This change added tests and can be verified by running `flink/flink-python/pyflink/fn_execution/tests/test_process_mode_boot.py`. ## Does this pull request potentially affect one of the following parts: - Dependencies (does it add or upgrade a dependency): (yes) - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no) - The serializers: (no) - The runtime per-record code paths (performance sensitive): (no) - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no) - The S3 file system connector: (no) ## Documentation - Does this pull request introduce a new feature? (no) - If yes, how is the feature documented? (PythonDocs)
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