dawidwys opened a new pull request #16437:
URL: https://github.com/apache/flink/pull/16437
## What is the purpose of the change
If we restore from a checkpoint with finished vertices there are certain
graph modifications that are not supported. Usesrs can not add a running
operator followed by a finished one. We throw an exception if we
identify such case.
Moreover so far we do not support vertices with part of the chain
finished. This might happen if the chainning changes before the restore.
We throw an exception in that case as well.
## Verifying this change
Added tests in `CheckpointCoordinatorRestoringTest`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (**yes** / no / don't
know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (yes / **no**)
- If yes, how is the feature documented? (**not applicable** / docs /
JavaDocs / not documented)
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