JingsongLi opened a new pull request #12485:
URL: https://github.com/apache/flink/pull/12485
## What is the purpose of the change
The sink of different jobs (or the same SQL runs multiple times) will
produce the same file name, the rename will fail, and different file systems
will produce different results:
- HadoopFileSystem: ignore new data.
- LocalFileSystem: overwrite old data.
## Brief change log
We can add UUID to prefix, make sure there is no conflict between jobs.
## Verifying this change
- `HiveTableSinkITCase.testBatchAppend`
- `HiveTableSinkITCase.testStreamingAppend`
- `FileSystemITCaseBase.testInsertAppend`
- `FileSystemITCaseBase.testInsertOverwrite`
## 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
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