Sxnan opened a new pull request, #24655:
URL: https://github.com/apache/flink/pull/24655
## What is the purpose of the change
Currently the `lastRecordAttributes1` and `lastRecordAttributes2` in the
`AbstractStreamOperator` are transient. The two fields will be null when it is
deserialized in TaskManager, which may cause an NPE.
To fix it, we make the RecordAttributes serializable and these fields
non-transient.
## Brief change log
- Make the RecordAttributes serializable
- Make `lastRecordAttributes1` and `lastRecordAttributes2` in the
`AbstractStreamOperator` non-transient
## Verifying this change
This change added tests and can be verified as follows:
- Integration test is added
`org.apache.flink.test.streaming.runtime.RecordAttributesPropagationITCase`
## 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 serializer: no
- 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
- If yes, how is the feature documented? not applicable
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