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https://issues.apache.org/jira/browse/YARN-11010?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17844135#comment-17844135
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Tamas Domok commented on YARN-11010:
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[~yifan.stan] feel free to take over.
> YARN ui2 hangs on the Queues page when the scheduler response contains NaN
> values
> ---------------------------------------------------------------------------------
>
> Key: YARN-11010
> URL: https://issues.apache.org/jira/browse/YARN-11010
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn-ui-v2
> Affects Versions: 3.4.0
> Reporter: Tamas Domok
> Assignee: Tamas Domok
> Priority: Major
> Attachments: capacity-scheduler.xml, shresponse.json
>
>
> When the scheduler response contains NaN values for capacity and maxCapacity
> the UI2 hangs on the Queues page. The console log shows the following error:
> {code:java}
> SyntaxError: Unexpected token N in JSON at position 666 {code}
> The scheduler response:
> {code:java}
> "maxCapacity": NaN,
> "absoluteMaxCapacity": NaN, {code}
> NaN, infinity, -infinity is not valid in JSON syntax:
> https://www.json.org/json-en.html
> This might be related as well: YARN-10452
>
> I managed to reproduce this with AQCv1, where I set the parent queue's
> capacity in absolute mode, then I used percentage mode on the
> leaf-queue-template. I'm not sure if this is a valid configuration, however
> there is no error or warning in RM logs about any configuration error. To
> trigger the issue the DominantResourceCalculator must be used. (When using
> absolute mode on the leaf-queue-template this issue is not re-producible,
> further details on: YARN-10922).
>
> Reproduction steps:
> # Start the cluster with the attached configuration
> # Check the Queues page on UI2 (it should work at this point)
> # Send an example job (yarn jar hadoop-mapreduce-examples-3.4.0-SNAPSHOT.jar
> pi 1 10)
> # Check the Queues page on UI2 (it should not be working at this point)
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