Ngone51 commented on a change in pull request #28880:
URL: https://github.com/apache/spark/pull/28880#discussion_r443933600
##########
File path:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ApplicationMaster.scala
##########
@@ -211,9 +211,11 @@ private[spark] class ApplicationMaster(
final def run(): Int = {
try {
val attemptID = if (isClusterMode) {
- // Set the web ui port to be ephemeral for yarn so we don't conflict
with
- // other spark processes running on the same box
- System.setProperty(UI_PORT.key, "0")
+ // Set the web ui port to be ephemeral for yarn if not set explicitly
+ // so we don't conflict with other spark processes running on the same
box
+ if (System.getProperty(UI_PORT.key) != null) {
+ System.setProperty(UI_PORT.key, "0")
+ }
Review comment:
yea, I think yet Spark could utilize the combination of `spark.ui.port`
and `spark.port.maxRetries` to perform "range port".
What else the "range port" do you refer to? @tgravescs
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