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https://issues.apache.org/jira/browse/YARN-3550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14515103#comment-14515103
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Steve Loughran commented on YARN-3550:
--------------------------------------
Error messages would be nice, but this is happening inside Jersey, and it
doesn't believe in error messages or much resembling diagnostics itself. Unless
there's a way to make it more informative, this will have to be a CANTFIX.
Sorry. We all suffer from this
> Improve YARN RM REST API error messages
> ---------------------------------------
>
> Key: YARN-3550
> URL: https://issues.apache.org/jira/browse/YARN-3550
> Project: Hadoop YARN
> Issue Type: Bug
> Components: webapp
> Affects Versions: 2.6.0
> Reporter: Rajesh Kartha
> Priority: Minor
>
> The error messages from an invalid REST call to the YARN RM Rest service does
> not yield in useful messages.
> Here is a simple example of using GET instead of POST to get a new
> application id:
> $ curl -X GET http://myhost:8088/ws/v1/cluster/apps/new-application
> <?xml version="1.0" encoding="UTF-8"
> standalone="yes"?><RemoteException><exception>WebApplicationException</exception><javaClassName>javax.ws.rs.WebApplicationException</javaClassName></RemoteException>
> and the RM log has this:
> 2015-04-27 11:18:27,783 WARN webapp.GenericExceptionHandler
> (GenericExceptionHandler.java:toResponse(98)) - INTERNAL_SERVER_ERROR
> javax.ws.rs.WebApplicationException
> at
> com.sun.jersey.server.impl.uri.rules.TerminatingRule.accept(TerminatingRule.java:66)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:886)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:834)
> at
> org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebAppFilter.doFilter(RMWebAppFilter.java:84)
> Would be useful to return a useful message
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