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https://issues.apache.org/jira/browse/SPARK-23339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16784204#comment-16784204
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gary commented on SPARK-23339:
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exclude servlet-api-2.5.jar, use servlet-api-3.1.0.jar. It works for me.
> Spark UI not loading *.js/*.css files, only raw HTML
> ----------------------------------------------------
>
> Key: SPARK-23339
> URL: https://issues.apache.org/jira/browse/SPARK-23339
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 2.2.0
> Environment: Spark 2.2.0, YARN, 2 Ubuntu 16.04 nodes, openjdk
> 1.8.0_151
> Reporter: Erik Baumert
> Priority: Major
> Attachments: 3LCeC.png
>
>
> I have never reported anything before, and hope this is the right place as I
> think I have come across a bug. If I missed the solution, please feel free to
> correct me.
> I set up Spark 2.2.0 on a 2-node Ubuntu cluster. I use Jupyter notebook to
> access the pyspark-shell. However, the UI via
> [http://IP:4040/|http://ip:4040/] is broken. Has anyone ever seen something
> like this?
> When I inspect the page in Chrome, it says "Failed to load resource:
> net::ERR_EMPTY_RESPONSE" for various .js and .css files.
> I did a fresh install and added my configurations until the problem occurred
> again. Everything works fine until I edited the spark-defaults.conf to
> contain the following line:
> {{{{spark.driver.extraClassPath
> /usr/local/phoenix/phoenix-4.13.0-HBase-1.3-client.jar }}}}
> {{{{spark.executor.extraClassPath
> /usr/local/phoenix/phoenix-4.13.0-HBase-1.3-client.jar }}}}
> How to add these jar to my class path without breaking the UI? If I just
> supply them using the --jars parameter in the Terminal it works fine. But I'd
> like to have them configured, as explained in the manual:
> [https://phoenix.apache.org/phoenix_spark.html]
>
> I posted the question on Stackoverflow some time ago
> [here|https://stackoverflow.com/questions/47291547/spark-ui-fails-to-load-js-displays-bare-html]
> and apparently I'm not the only one
> ([here|https://stackoverflow.com/questions/47875064/spark-ui-appears-with-wrong-format]).
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