XComp opened a new pull request #18963:
URL: https://github.com/apache/flink/pull/18963
## What is the purpose of the change
`FileStateHandle.discardState` didn't handle cases where the `FileSystem`
implementation used the return value to indicate an error during deletion. This
made the cleanup logic not recognize the failure.
## Brief change log
* Updates `FileStateHandle.discardState` implementation
## Verifying this change
* Introduces `TestingFileSystem`
* Adds tests to `FileStateHandleTest` to cover both deletion code paths.
## 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: yes
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? not applicable
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