curcur opened a new pull request #12525:
URL: https://github.com/apache/flink/pull/12525
## What is the purpose of the change
When a task failure occurs, the error of disposing of an operator is logged
before the real rootcasue is printed, which is confusing.
This fix suppressed exception occurring in disposing of an operator and
attached the exception together with the rootcause.
## Brief change log
- change disposeAllOperators(True) to throw suppressed exceptions instead
of log the exception error first.
## Verifying this change
Unit test
## 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
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