dawidwys opened a new pull request #14809:
URL: https://github.com/apache/flink/pull/14809
## What is the purpose of the change
The aim is to implement a HeapKeyValueStateIterator which can be used to
produce a unified savepoint out of a HeapKeyedStateBackend
## Verifying this change
The tests are still to come, as we cannot enable the unified savepoint for
HeapStateBackend because we do not have the restore procedure in place yet.
## 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/Mesos, 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) - to be added
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