Samrat002 opened a new pull request, #21770:
URL: https://github.com/apache/flink/pull/21770
## What is the purpose of the change
Currently, below are the ways Python Worker gets the Python Flink
Dependencies.
1. Worker Node's System Python Path
(/usr/local/lib64/python3.7/site-packages)
2. Client passes the python Dependencies through `-pyfs` and `--pyarch`
which is localised into `PYTHONPATH` of Python Worker.
3. Client passes the requirements through `-requirement.txt` which gets
installed on Worker Node and added into `PYTHONPATH` of Python Worker.
This change allow `PYTHONPATH` of Python Worker configurable where
Admin/Service provider can install the required python Flink dependencies on a
custom path (`/usr/lib/pyflink/lib/python3.7/site-packages`) on all Worker
Nodes and then set the path in the client machine configuration
`flink-conf.yaml`. This way it works without any configurations from the
Application Users and also without affecting any other components dependent on
System Python Path.
## Brief change log
Todo
## Verifying this change
Todo
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / no) no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / no) no
- The serializers: (yes / no / don't know) no
- The runtime per-record code paths (performance sensitive): (yes / no /
don't know) don't know
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / no / don't know)
no
- The S3 file system connector: (yes / no / don't know) no
## Documentation
- Does this pull request introduce a new feature? (yes / no) no
- If yes, how is the feature documented? (not applicable / docs / JavaDocs
/ not documented) N/A
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