gaoyunhaii opened a new pull request #18112:
URL: https://github.com/apache/flink/pull/18112
## What is the purpose of the change
This PR fixes the issue that when a task finished on restore taking
unaligned checkpoints, currently the asynchronous part does not wait till the
alignment of barriers get finished, thus throws exception due to some metrics
are not set yet.
## Brief change log
- 6bb8f5418b1dcd085b16a00f1370a88262d3e4a9 also keeps the channel states for
operators finished on restore, and wait for these states get completed
explicitly in the asynchronous part.
## Verifying this change
This change added tests and can be verified by the added unit 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, ZooKeeper: **yes**
- 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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