Github user squito commented on a diff in the pull request:
https://github.com/apache/spark/pull/11644#discussion_r55849588
--- Diff: 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" +
+ s"$serviceString (for example spark.ui.port for SparkUI) to
an available port " +
+ "or increasing spark.port.maxRetries."
--- End diff --
worth also mentioning that choosing a port of `0` has the magic property of
finding an open port?
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