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https://issues.apache.org/jira/browse/YARN-7868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16350632#comment-16350632
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Eric Yang commented on YARN-7868:
---------------------------------

[~csingh] Thank you for reviewing the patch.

[~jianhe] Thanks for the review.  The message might be inaccurate for 
multi-users environment where an end user doesn't have system admin rights to 
enable the service.  This is where the message would shows up the most, if 
system admin intentionally disabled this feature.  Therefore, I prefer to omit 
this message to prevent noise generation.

> Provide improved error message when YARN service is disabled
> ------------------------------------------------------------
>
>                 Key: YARN-7868
>                 URL: https://issues.apache.org/jira/browse/YARN-7868
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: yarn-native-services
>    Affects Versions: 3.1.0
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>            Priority: Major
>         Attachments: YARN-7868.001.patch
>
>
> Some YARN CLI command will throw verbose error message when YARN service is 
> disabled.  The error message looks like this:
> {code}
> Jan 31, 2018 4:24:46 PM com.sun.jersey.api.client.ClientResponse getEntity
> SEVERE: A message body reader for Java class 
> org.apache.hadoop.yarn.service.api.records.ServiceStatus, and Java type class 
> org.apache.hadoop.yarn.service.api.records.ServiceStatus, and MIME media type 
> application/octet-stream was not found
> Jan 31, 2018 4:24:46 PM com.sun.jersey.api.client.ClientResponse getEntity
> SEVERE: The registered message body readers compatible with the MIME media 
> type are:
> application/octet-stream ->
>   com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
>   com.sun.jersey.core.impl.provider.entity.FileProvider
>   com.sun.jersey.core.impl.provider.entity.InputStreamProvider
>   com.sun.jersey.core.impl.provider.entity.DataSourceProvider
>   com.sun.jersey.core.impl.provider.entity.RenderedImageProvider
> */* ->
>   com.sun.jersey.core.impl.provider.entity.FormProvider
>   com.sun.jersey.core.impl.provider.entity.StringProvider
>   com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
>   com.sun.jersey.core.impl.provider.entity.FileProvider
>   com.sun.jersey.core.impl.provider.entity.InputStreamProvider
>   com.sun.jersey.core.impl.provider.entity.DataSourceProvider
>   com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
>   com.sun.jersey.core.impl.provider.entity.ReaderProvider
>   com.sun.jersey.core.impl.provider.entity.DocumentProvider
>   com.sun.jersey.core.impl.provider.entity.SourceProvider$StreamSourceReader
>   com.sun.jersey.core.impl.provider.entity.SourceProvider$SAXSourceReader
>   com.sun.jersey.core.impl.provider.entity.SourceProvider$DOMSourceReader
>   com.sun.jersey.json.impl.provider.entity.JSONJAXBElementProvider$General
>   com.sun.jersey.json.impl.provider.entity.JSONArrayProvider$General
>   com.sun.jersey.json.impl.provider.entity.JSONObjectProvider$General
>   com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
>   com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
>   com.sun.jersey.core.impl.provider.entity.XMLRootObjectProvider$General
>   com.sun.jersey.core.impl.provider.entity.EntityHolderReader
>   com.sun.jersey.json.impl.provider.entity.JSONRootElementProvider$General
>   com.sun.jersey.json.impl.provider.entity.JSONListElementProvider$General
>   com.sun.jersey.json.impl.provider.entity.JacksonProviderProxy
>   com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider
> 2018-01-31 16:24:46,415 ERROR client.ApiServiceClient: 
> {code}



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