Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/22624#discussion_r229059902
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/CoarseGrainedSchedulerBackend.scala
---
@@ -230,7 +242,7 @@ class CoarseGrainedSchedulerBackend(scheduler:
TaskSchedulerImpl, val rpcEnv: Rp
val reply = SparkAppConfig(
sparkProperties,
SparkEnv.get.securityManager.getIOEncryptionKey(),
- fetchHadoopDelegationTokens())
+ Option(delegationTokens.get()))
--- End diff --
Actually since I moved the token manager to `CoarseGrainedSchedulerBackend`
I think I can simplify this and avoid having to trace how the RPC code works to
prove this is fine. I'll try to update things this afternoon after I finish
some other stuff.
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