asagjj opened a new pull request #9877: [FLINK-14360][yarn] flink on yarn support obtain delegation token for multi hdfs. URL: https://github.com/apache/flink/pull/9877 ## What is the purpose of the change Provide a optional config ` cluster.fs-servers` to set a list of multi hdfs scheme names, so that when deploy flink on yarn with multi hdfs clusters or with hdfs federation,we can obtain their delegation tokens. ## Verifying this change This change is a trivial rework / code cleanup without any test coverage. ## 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, Yarn/Mesos, ZooKeeper: (no ) - The S3 file system connector: (no ) ## Documentation - Does this pull request introduce a new feature? (yes) - If yes, how is the feature documented? ( JavaDocs)
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