dawidwys opened a new pull request #18024:
URL: https://github.com/apache/flink/pull/18024
## What is the purpose of the change
This PR adds a `RestoreMode` flag to be passed along with savepoint path. It
determines the way a snapshot should be restored from. If a `CLAIM` mode is
specified Flink will take ownership of the initial snapshot and will treat it
as if it was created as a regular checkpoint and it might delete it at a
certain point in time.
## Verifying this change
* Added tests for passing the flag in CLI
* Added tests for passing the flag in REST API
* Added tests in SavepointITCase for the `CLAIM` behaviour
## 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): the option is documented in javadocs and generated
documentation. The entire snapshots ownership requires a separate page/entry.
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