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https://issues.apache.org/jira/browse/MAPREDUCE-3613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13262038#comment-13262038
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Robert Joseph Evans commented on MAPREDUCE-3613:
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I don't really like the fix because it requires all of the jersey methods to be
modified, in exactly the same way, but that is the exact same fix as HDFS-2441
did so I guess it is OK.
The root of the issue appears to be that HttpServer.QuotingInputFilter is
trying to guess what the content type is based off of the URI of the request,
and always setting it no matter what. This seems to be so that we can set the
charset of the response to be utf-8. This is coupled with Jersey also
outputting the content type instead of overwriting the one that was set
previously.
Also it makes it more difficult for them to be called as regular methods. I
really would prefer to see something with the server where we could fix some of
this in HttpServer itself so that we don't get the automatic content type for
web services. But that is likely to be a bigger change and would be a bit more
cross project. Sadly I tried upgrading to Jersey 1.12 and it does not fix the
issue.
So reluctantly I give this a +1.
> web service calls header contains 2 content types
> -------------------------------------------------
>
> Key: MAPREDUCE-3613
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3613
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Thomas Graves
> Assignee: Thomas Graves
> Priority: Critical
> Attachments: MAPREDUCE-3613.patch
>
>
> when doing requesting info from the web services rest API, curl seems to
> return content-type of both text and json or xml:
> > Accept: application/xml
> >
> < HTTP/1.1 200 OK
> < Content-Type: text/plain; charset=utf-8
> < Content-Type: application/xml
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