jackwangcs created FLINK-21232:
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Summary: Introduce pluggable Hadoop delegation token providers
Key: FLINK-21232
URL: https://issues.apache.org/jira/browse/FLINK-21232
Project: Flink
Issue Type: New Feature
Components: Deployment / YARN
Reporter: jackwangcs
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.
Email dicussion thread:
[https://lists.apache.org/thread.html/rbedb6e769358a10c6426c4c42b3b51cdbed48a3b6537e4ebde912bc0%40%3Cdev.flink.apache.org%3E]
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