gaoyunhaii opened a new pull request #12452:
URL: https://github.com/apache/flink/pull/12452
## What is the purpose of the change
Currently the Hadoop path-based file writer does not remove the in-progress
file remaining from last run on startup. However, some users (like Hive) of the
path-based writer could not override the in-progress file. Therefore, we need
to remove them explicitly on startup.
Another effect caused by the change is that we will have to distinguish
in-progress file and pending file so that we could only remove the in-progress
files. We distinguish them by using different file suffix and do the renaming
in pre-commit. This is consistent with the `FileOutputCommitter` in Hadoop.
## Brief change log
- 7cb10bd1269179bbe66f5b840c0f0d2494c66a55 removes the in-progress file on
startup.
## Verifying this change
*(Please pick either of the following options)*
- This change is tested by extending the current rename committer test to
also cover the case that the writer does not override the file.
## 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? **not applicable**
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