gaborgsomogyi opened a new pull request, #22298:
URL: https://github.com/apache/flink/pull/22298
## What is the purpose of the change
At the moment there are no delegation tokens available when blob server is
starting. If the blob server uses an external file system where the
authentication type is delegation token based then it throws and exception
since there are no credentials.
In this PR I've moved the delegation token manager initialization before
blob server and trigger a manual token obtain + local JVM receiver propagation.
## Brief change log
* The delegation token manager initialization moved before blob server and
trigger a manual token obtain + local JVM receiver propagation
* Changed the `DelegationTokenManager` API documentation for better clarity
* Changed a log message for better clarity
## Verifying this change
Manually on cluster.
## 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)`: yes
- 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, 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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