Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/1980#discussion_r18432581
--- Diff: core/src/main/scala/org/apache/spark/ui/JettyUtils.scala ---
@@ -180,12 +186,32 @@ private[spark] object JettyUtils extends Logging {
serverName: String = ""): ServerInfo = {
val collection = new ContextHandlerCollection
- collection.setHandlers(handlers.toArray)
addFilters(handlers, conf)
// Bind to the given port, or throw a java.net.BindException if the
port is occupied
def connect(currentPort: Int): (Server, Int) = {
- val server = new Server(new InetSocketAddress(hostName, currentPort))
+ val server = new Server
+ // Create a connector on port currentPort to listen for HTTP requests
+ val httpConnector = new SelectChannelConnector()
+ httpConnector.setPort(currentPort)
+ httpConnector.setHost(hostName)
+
+ if (conf.get("spark.ui.https.enabled", "false").toBoolean) {
+ // / If the new port wraps around, do not try a privilege port
+ val securePort = (currentPort + 1 - 1024) % (65536 - 1024) + 1024
--- End diff --
Ah, I see. Thanks for explaining.
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