dianfu opened a new pull request #12370:
URL: https://github.com/apache/flink/pull/12370
## What is the purpose of the change
*This pull request allows Python worker to use off-heap memory by default.
This is to make it Python UDF could work together RocksDB state backend as
currently RocksDB will take all the managed memory.*
## Brief change log
- *Introduce config option python.fn-execution.memory.managed which is
disabled by default.*
- *When python.fn-execution.memory.managed is enabled, Python UDF worker
will use managed memory*
- *Set a default value of taskmanager.memory.task.off-heap.size with best
effort if Python UDF is used if it's not set.*
## Verifying this change
This change is verified manually and we will add more e2e tests in separate
PR.
## 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/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? (docs)
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