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https://issues.apache.org/jira/browse/HDFS-10184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15204670#comment-15204670
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Haohui Mai commented on HDFS-10184:
-----------------------------------
Unless we move to Java 8 this is a non starter. The UI is heavily driven by
HTML 5. Rhino, the JavaScript engine in Java 7, is at least 10x slower than
Nashorn and node.js.
I have written a JavaScript version of dfsadmin using Rhino and the performance
is very unsatisfactory. Given the scope of the tests I'm not fully convinced it
is a good idea.
I believe that the new Web UI in YARN is adopiting npm / node.js -- these tools
will be integrated with the current Jenkins workflow so the integration should
not be an issue.
> Introduce unit tests framework for HDFS UI
> ------------------------------------------
>
> Key: HDFS-10184
> URL: https://issues.apache.org/jira/browse/HDFS-10184
> Project: Hadoop HDFS
> Issue Type: Test
> Reporter: Haohui Mai
>
> The current HDFS UI is based on HTML5 and it does not have unit tests yet.
> Occasionally things break and we can't catch it. We should investigate and
> introduce unit test frameworks such as Mocha for the UI.
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