Weiwei Yang created HADOOP-13628:

             Summary: Support to retrieve specific property from configuration 
                 Key: HADOOP-13628
                 URL: https://issues.apache.org/jira/browse/HADOOP-13628
             Project: Hadoop Common
          Issue Type: Improvement
          Components: conf
    Affects Versions: 2.7.3
            Reporter: Weiwei Yang
            Assignee: Weiwei Yang

Currently we can use rest API to retrieve all configuration properties per 
daemon, but unable to get a specific property by name. This causes extra parse 
work at client side when dealing with Hadoop configurations, and also it's 
quite over head to send all configuration in a http response over network. 
Propose to support following a {{name}} parameter in the http request,

curl --header "Accept:application/json" 


This change is fully backwards compatible.

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