Github user jerryshao commented on the issue: https://github.com/apache/spark/pull/19227 I see, so based on your comments: 1. Mesos should not honor principal/keytab configuration. Instead of rename them, we should remove the `MESOS` here: ``` if (clusterManager == YARN || clusterManager == LOCAL || clusterManager == MESOS) { ``` 2. Spark on standalone is not well suitable for accessing security cluster with tokens or keytabs currently. Let me close this PR and rethink about some minor issues. BTW.
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