Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20945#discussion_r179007924
--- Diff:
resource-managers/mesos/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosClusterScheduler.scala
---
@@ -506,6 +506,10 @@ private[spark] class MesosClusterScheduler(
options ++= Seq("--class", desc.command.mainClass)
}
+ desc.conf.getOption("spark.mesos.proxyUser").foreach { v =>
+ options ++= Seq("--proxy-user", v)
--- End diff --
> Yes because the assumption was client mode was safe. There is no warning
about this
Could probably use something in the documentation - warnings printed to
logs are easily ignored. Still, there are legitimate uses for client mode +
proxy user, but I don't think this is one of them.
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