JackWangCS opened a new pull request #14841:
URL: https://github.com/apache/flink/pull/14841
## What is the purpose of the change
Introduce a pluggable delegation provider via SPI.
Delegation provider could be placed in connector related code and is more
extendable comparing using reflection way to obtain DTs.
## Brief change log
- *Introduce the HadoopDelegationTokenProvider interface for Hadoop
service to obtain delegation tokens*
- *Introduce HadoopDelegationTokenManager to manage
HadoopDelegationTokenProviders*
- *Implement HadoopDelegationTokenProvider for Hadoop Filesystems and
HBase*
## Verifying this change
This change added tests and can be verified as follows:
- Tests are still working in progress
## 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: yes, this will
affect Yarn deployment
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? yes
- If yes, how is the feature documented? not documented now, it's still
work in progress
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