Github user mgummelt commented on a diff in the pull request: https://github.com/apache/spark/pull/11369#discussion_r54295354 --- Diff: core/src/main/scala/org/apache/spark/deploy/mesos/MesosClusterDispatcherArguments.scala --- @@ -95,6 +100,9 @@ private[mesos] class MesosClusterDispatcherArguments(args: Array[String], conf: " -h HOST, --host HOST Hostname to listen on\n" + " -p PORT, --port PORT Port to listen on (default: 7077)\n" + " --webui-port WEBUI_PORT WebUI Port to listen on (default: 8081)\n" + + " --webui-url WEBUI_URL The WebUI URL to be set in the underlying\n" + --- End diff -- There are a trillion ways to set configuration in Spark, half of them are deprecated, and some only work with certain entrypoint classes. Some entrypoints, like SparkSubmit, support setting arbitrary properties in commands w/ something like --conf. MesosClusterDispatcher does not. So I say we just rely on `--properties-file`, rather than adding a command argument just for this one property. It's already arbitrary which properties are exposed as special command parameters, so let's not add a new one.
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