aljoscha opened a new pull request #13891:
URL: https://github.com/apache/flink/pull/13891
## What is the purpose of the change
Adds a sanity check to ensure that BATCH execution on the DataStream API
actually behaves the way we expect. We ensure that jobs can be executed in
stages and that a failure doesn't cause the whole job to be restarted but only
the stages that need to be restarted.
**Note to reviewers: The second test actually doesn't work because the job
cannot be executed on just 1 slot. Is this something we should support?**
## Verifying this change
Run the new test.
## 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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