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https://issues.apache.org/jira/browse/HADOOP-13628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15526185#comment-15526185
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Weiwei Yang commented on HADOOP-13628:
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Hello [~ste...@apache.org] and [~liuml07]
The patch is ready for review for quite some days, can you guys help to review?
We have some discussions in new Yarn UI work, if this one can be done, then it
would be a lot easier to implement YARN-5145.
Thanks a lot.
> Support to retrieve specific property from configuration via REST API
> ---------------------------------------------------------------------
>
> 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
> Attachments: 404_error_browser.png, HADOOP-13628.01.patch,
> HADOOP-13628.02.patch, HADOOP-13628.03.patch, HADOOP-13628.04.patch,
> HADOOP-13628.05.patch
>
>
> 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, by issuing
> {code}
> curl --header "Accept:application/json"
> http://${RM_HOST}/conf?name=yarn.nodemanager.aux-services
> {code}
> get output
> {code}
> {"property"{"key":"yarn.resourcemanager.hostname","value":"${RM_HOST}","isFinal":false,"resource":"yarn-site.xml"}}
> {code}
> This change is fully backwards compatible.
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