rkhachatryan opened a new pull request #14509:
URL: https://github.com/apache/flink/pull/14509
## What is the purpose of the change
In scenarios with multiple inputs (e.g. co-group; not union) one input may
receive a
checkpoint barrier while the second input is still restoring state. This
(previous)
state is currently not included into the snapshot, which therefore will be
incomplete.
## Brief change log
- Disable alignment timeout by default in UnalignedCheckpointITCase
- Decline checkpoint if state of the input gate was not yet consumed
## Verifying this change
- Added unit test
`SingleInputGateTest#testCheckpointsDeclinedUnlessStateConsumed`.
- Existing UnalignedCheckpointITCase un-ignored - without the change it
fails once per ~10 runs
## 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/Mesos, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
- If yes, how is the feature documented? no
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