jlon opened a new pull request #18032:
URL: https://github.com/apache/flink/pull/18032
## What is the purpose of the change
The number of TaskManagers whose status is Pending should be reported. In
the case of insufficient resources, let the external sense as soon as possible.
## Brief change log
- Add indicator name numPendingTaskManagers
- Report the number of unregistered taskManagers after the worker
registration is successful
## 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: (yes / no / don't know)
- 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)
## Documentation
- Does this pull request introduce a new feature? (no)
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