[
https://issues.apache.org/jira/browse/HADOOP-8922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13477866#comment-13477866
]
Hudson commented on HADOOP-8922:
--------------------------------
Integrated in Hadoop-Mapreduce-trunk #1228 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1228/])
HADOOP-8922. Provide alternate JSONP output for JMXJsonServlet to allow
javascript in browser dashboard (Damien Hardy via bobby) (Revision 1398904)
Result = FAILURE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1398904
Files :
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/jmx/JMXJsonServlet.java
*
/hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/jmx/TestJMXJsonServlet.java
> Provide alternate JSONP output for JMXJsonServlet to allow javascript in
> browser dashboard
> ------------------------------------------------------------------------------------------
>
> Key: HADOOP-8922
> URL: https://issues.apache.org/jira/browse/HADOOP-8922
> Project: Hadoop Common
> Issue Type: Improvement
> Components: metrics
> Affects Versions: 2.0.0-alpha
> Reporter: Damien Hardy
> Priority: Trivial
> Labels: newbie, patch
> Fix For: 3.0.0, 2.0.3-alpha
>
> Attachments: HADOOP-8922-3.patch, HADOOP-8922-4-branch-2.patch,
> test.html
>
>
> JMXJsonServlet may provide a JSONP alternative to JSON to allow javascript in
> browser GUI to make requests.
> For security purpose about XSS, browser limit request on other
> domain[¹|#ref1] so that metrics from cluster nodes cannot be used in a full
> js interface.
> An example of this kind of dashboard is the bigdesk[²|#ref2] plugin for
> ElasticSearch.
> In order to achieve that the servlet should detect a GET parameter
> (callback=xxxx) and modify the response by surrounding the Json value with
> "xxxx(" and ");" [³|#ref3]
> value "xxxx" is variable and should be provide by client as callback
> parameter value.
> {anchor:ref1}[1]
> https://developer.mozilla.org/en-US/docs/Same_origin_policy_for_JavaScript
> {anchor:ref2}[2] https://github.com/lukas-vlcek/bigdesk
> {anchor:ref3}[3] http://en.wikipedia.org/wiki/JSONP
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