Add Port Configuration Suggestion on Bind Exceptions

Author: bjornjon

core/src/main/scala/org/apache/spark/util/Utils.scala

@@ -2014,8 +2014,10 @@ private[spark] object Utils extends Logging {
       } catch {
         case e: Exception if isBindCollision(e) =>
           if (offset >= maxRetries) {
-            val exceptionMessage =
-              s"${e.getMessage}: Service$serviceString failed after $maxRetries retries!"
+            val exceptionMessage = s"${e.getMessage}: Service$serviceString failed after " +
+              s"$maxRetries retries! Consider explicitly setting the appropriate port for the " +
+              s"service$serviceString (for example spark.ui.port for SparkUI) to an available " +
+              "port or increasing spark.port.maxRetries."
             val exception = new BindException(exceptionMessage)
             // restore original stack trace
             exception.setStackTrace(e.getStackTrace)