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https://issues.apache.org/jira/browse/YARN-8129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16578012#comment-16578012
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Abhishek Modi commented on YARN-8129:
-------------------------------------
[~vrushalic] [~rohithsharma] could you please review it. Thanks.
> Improve error message for invalid value in fields attribute
> -----------------------------------------------------------
>
> Key: YARN-8129
> URL: https://issues.apache.org/jira/browse/YARN-8129
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: ATSv2
> Reporter: Charan Hebri
> Assignee: Abhishek Modi
> Priority: Minor
> Attachments: YARN-8129.001.patch
>
>
> Query with invalid values for the 'fields' attributes throws a message that
> isn't very informative.
> Reader log,
> {noformat}
> 2018-04-09 08:59:46,069 INFO reader.TimelineReaderWebServices
> (TimelineReaderWebServices.java:getEntities(595)) - Received URL
> /ws/v2/timeline/users/hrt_qa/flows/test_flow/apps?limit=3&fields=INFOS from
> user hrt_qa
> 2018-04-09 08:59:46,070 INFO reader.TimelineReaderWebServices
> (TimelineReaderWebServices.java:handleException(173)) - Processed URL
> /ws/v2/timeline/users/hrt_qa/flows/test_flow/apps?limit=3&fields=INFOS but
> encountered exception (Took 1 ms.){noformat}
> Here INFOS is the invalid value for the fields attribute.
> Response,
> {noformat}
> {
> "exception": "BadRequestException",
> "message": "java.lang.Exception: No enum constant
> org.apache.hadoop.yarn.server.timelineservice.storage.TimelineReader.Field.INFOS",
> "javaClassName": "org.apache.hadoop.yarn.webapp.BadRequestException"
> }{noformat}
> The message shouldn't ideally contain the enum information.
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