Kyle Winkelman created SPARK-28504:
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Summary: Web UI does not always honor spark.ui.proxyBase and
X-Forwarded-Context
Key: SPARK-28504
URL: https://issues.apache.org/jira/browse/SPARK-28504
Project: Spark
Issue Type: Bug
Components: Web UI
Affects Versions: 2.4.3
Reporter: Kyle Winkelman
When running the Web UI behind a proxy, links in the html correctly honor
spark.ui.proxyBase and X-Forwarded-Context in
[UIUtils#uiRoot|[https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/ui/UIUtils.scala]].
Two items that I have found that do not honor spark.ui.proxyBase and
X-Forwarded-Context:
# History server links from the main page produce a request like
[http://localhost:8888/proxy/18080/history/spark-application-1563978242545/1/jobs/]
which will then redirect to
[http://localhost:8888/history/spark-application-1563975642858/jobs/].
# Static redirects like when entering the Web UI with a request like
[http://localhost:8888/proxy/4040] which will then redirect to
[http://localhost:8888/jobs].
I believe that these correspond to:
#
[HistoryServer#loaderServlet|[https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/history/HistoryServer.scala#L100-L101|https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/deploy/history/HistoryServer.scala]]
#
[JettyUtils#createRedirectHandler|[https://github.com/apache/spark/blob/master/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala#L124-L158]]
I do not know if this is a complete list but I think these instances can be
fixed by using UIUtils.uiRoot.
{code:java}
// HistoryServer
val requestURI = UIUtils.uiRoot(req) + Option(req.getQueryString).map("?" +
_).getOrElse("")
// JettyUtils
val newUrl = new URL(new URL(UIUtils.uiRoot(request)),
prefixedDestPath).toString{code}
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