Github user bersprockets commented on a diff in the pull request:
https://github.com/apache/spark/pull/20519#discussion_r167095485
--- Diff:
core/src/main/scala/org/apache/spark/api/python/PythonWorkerFactory.scala ---
@@ -180,18 +181,52 @@ private[spark] class PythonWorkerFactory(pythonExec:
String, envVars: Map[String
return
}
+ var serverSocket: ServerSocket = null
try {
+ // get a server socket so that the launched daemon can tell us its
server port
+ serverSocket = new ServerSocket(0, 0,
InetAddress.getByAddress(Array(127, 0, 0, 1)))
--- End diff --
>but it's generally a good idea to call setReuseAddress(true).
Do I want to do this since I am asking for some available port rather than
binding to a known port?
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