Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20327#discussion_r171382335
--- Diff: core/src/main/scala/org/apache/spark/ui/WebUI.scala ---
@@ -126,7 +126,7 @@ private[spark] abstract class WebUI(
def bind(): Unit = {
assert(serverInfo.isEmpty, s"Attempted to bind $className more than
once!")
try {
- val host = Option(conf.getenv("SPARK_LOCAL_IP")).getOrElse("0.0.0.0")
+ val host = conf.get(DRIVER_BIND_ADDRESS)
--- End diff --
This actually changes behavior, because now you'll always be listening on a
specific interface instead of "0.0.0.0".
Try it out: run spark-shell in local mode; it should try to figure out your
non-loopback address for the driver, but you should still be able to connect to
"127.0.0.1:4040" in your browser. With your changes that will probably stop
working.
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