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[FLINK-35510][statebackend] Implement basic incremental checkpoint fo…
…r ForStStateBackend
What is the purpose of the change
Use low DB api implement a basic incremental checkpoint for ForStStatebackend, follow steps:
- db.disableFileDeletions()
- db.getLiveFiles(true)
- db.entableFileDeletes(false)
Brief change log
- Introduce ForStStateDataTransfer
- Introduce ForStIncrementalSnapshotStrategy
Verifying this change
This change added tests and can be verified as follows:
- Added test ForStStateDataTransferTest
- Added test ForStIncrementalSnapshotStrategyTest
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: (no)
- The S3 file system connector: (no)
CI report:
- 6e2f34a849971292c1377ffc68b12c0ea10c4b61 UNKNOWN
- e7648e7bfc21b2b89f8b5f0da01fa8c078e4d388 Azure: SUCCESS
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