gaborgsomogyi opened a new pull request, #23697:
URL: https://github.com/apache/flink/pull/23697
## What is the purpose of the change
`PythonDriver` now collects the python process output in a `Stringbuilder`
instead of streaming it. It can cause OOM when the python process is generating
huge amount of output. In this PR I've changed the code not to collect the log
but stream it into log line by line.
## Brief change log
`PythonDriver` is collecting the python process output line by line and
stream it into log.
## Verifying this change
Manually on local machine.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- 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, Kubernetes/Yarn, 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? not applicable
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