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https://issues.apache.org/jira/browse/YARN-11278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17597217#comment-17597217
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groot commented on YARN-11278:
------------------------------
[~quapaw] - I can see the problem here, what is your suggestion for dealing
with error message here. Shall we make it generic or do you have anything else
in mind
> Ambiguous error message in mutation API
> ---------------------------------------
>
> Key: YARN-11278
> URL: https://issues.apache.org/jira/browse/YARN-11278
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacity scheduler
> Reporter: András Győri
> Assignee: groot
> Priority: Major
>
> In RMWebServices#updateSchedulerConfiguration, we are checking two
> prerequisites:
> {code:java}
> if (scheduler instanceof MutableConfScheduler && ((MutableConfScheduler)
> scheduler).isConfigurationMutable()) { {code}
> However, the error message is misleading in the second case (namely if the
> configuration is not mutable eg. a FILE_CONFIGURATION_STORE)
> {code:java}
> } else {
> return Response.status(Status.BAD_REQUEST)
> .entity("Configuration change only supported by " +
> "MutableConfScheduler.")
> .build(); {code}
>
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