zjffdu opened a new pull request #12052: URL: https://github.com/apache/flink/pull/12052
## What is the purpose of the change This PR is to throw meaningful exception when hadoop jar is missing in flink scala's yarn mode. Currently the error message is useless and confusing for users. see screenshot below. ## Verifying this change *(Please pick either of the following options)* This change is a trivial rework without any test coverage. See the following screenshot for comparison w/o this PR. * Before  * After  ## 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? (not applicable) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
