SteNicholas opened a new pull request, #657:
URL: https://github.com/apache/flink-kubernetes-operator/pull/657
## What is the purpose of the change
Currently the Flink service always deletes the jobgraph from HA metadata so
that it's regenerated for last-state upgrades. This is unnecessary for scale
only operations. Keeping the jobgraph could greately speed up startup time for
some jobs. `AbstractFlinkService` supports to delete jobgraph on non-scale
operations.
## Brief change log
- `AbstractFlinkService` deletes jobgraph on non-scale operations.
## Verifying this change
- Adds `ApplicationReconcilerTest#testScaleWithJobGraphKeptInHAMetadata`
to verify whether to delete jobgraph on scale only last-state upgrades.
## 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 changes to the `CustomResourceDescriptors`:
(yes / **no**)
- Core observer or reconciler logic that is regularly executed: (yes /
**no**)
## 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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