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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2974) GenericExceptionHandler to handle ErrorMessagesException by extracting messages
Date Wed, 17 Dec 2014 12:24:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-2974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14249754#comment-14249754
] 

Steve Loughran commented on YARN-2974:
--------------------------------------

The client-side response is even less useful
{code}
 Request to http://stevel-763.local:63771/proxy/application_1418816662063_0001/ws/v1/slider/application/live/resources
failed with exit code 500, body length 221:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><RemoteException><exception>ErrorMessagesException</exception><javaClassName>com.sun.jersey.spi.inject.Errors$ErrorMessagesException</javaClassName></RemoteException>
{code}

> GenericExceptionHandler to handle ErrorMessagesException by extracting messages
> -------------------------------------------------------------------------------
>
>                 Key: YARN-2974
>                 URL: https://issues.apache.org/jira/browse/YARN-2974
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: webapp
>    Affects Versions: 2.6.0
>            Reporter: Steve Loughran
>
> The Jersey {{ErrorMessagesException}} supports a list of messages, and is how jersey
itself builds up errors. 
> {{GenericExceptionHandler }} doesn't have special handling here and converts to a 500,
discarding all the text as it does so.
> the handler should recognise the exception, log the messages and build up the response
text from it.



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