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https://issues.apache.org/jira/browse/SPARK-52496?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chirag Jain updated SPARK-52496:
--------------------------------
Priority: Minor (was: Major)
> Redirect do not honor proxyBase in Completed Batches Table links
> ----------------------------------------------------------------
>
> Key: SPARK-52496
> URL: https://issues.apache.org/jira/browse/SPARK-52496
> Project: Spark
> Issue Type: Bug
> Components: UI, Web UI
> Affects Versions: 3.5.3
> Reporter: Chirag Jain
> Priority: Minor
>
> We are running a streaming SparkApplication on K8s with Istio
>
>
> We have the following properties set
>
> ```
> spark.ui.enabled: 'true'
> spark.ui.proxyBase: /spark-ui/spark-history-e2e-test-cd7d74179813
> spark.ui.proxyRedirectUri: /
> ```
> The spark web ui loads and works fine at
> https://spark.example.com/spark-ui/spark-history-e2e-test-cd7d74179813/jobs
>
> Except for the Completed Batches Table under Streaming - the links in there
> do not have a trailing slash
> [https://github.com/apache/spark/blob/59e6b5b7d350a1603502bc92e3c117311ab2cbb6/streaming/src/main/scala/org/apache/spark/streaming/ui/AllBatchesTable.scala#L148]
>
> which leads to Jetty redirecting and adding a '/', however we notice the
> proxyBase is not being honored in this redirect
>
> {code:java}
> $ curl -L -I
> https://spark.example.com/spark-ui/spark-history-e2e-test-cd7d74179813/streaming/batch?id=1750103432000
> HTTP/2 302
> date: Mon, 16 Jun 2025 19:54:22 GMT
> location: http://spark.example.com/streaming/batch/?id=1750103432000
> content-length: 0
> x-envoy-upstream-service-time: 2
> server: istio-envoy
> HTTP/1.1 301 Moved Permanently
> location: https://spark.example.com/streaming/batch/?id=1750103432000
> date: Mon, 16 Jun 2025 19:54:22 GMT
> server: istio-envoy
> transfer-encoding: chunked
> HTTP/2 404
> date: Mon, 16 Jun 2025 19:54:22 GMT
> server: istio-envoy
> {code}
> As we see `/spark-ui/spark-history-e2e-test-cd7d74179813` is dropped.
> ---
>
> A short term fix is to make the batch links render with the proxyBase and a
> trailing slash
> But I am puzzled why ProxyRedirectHandler does not honor proxyBase - the code
> seems to be written to handle it
> https://github.com/apache/spark/blob/32232e9ed33bb16b93ad58cfde8b82e0f07c0970/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala#L602-L603
>
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