Weiwei Yang created HADOOP-13628:
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Summary: 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
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,
{code}
curl --header "Accept:application/json"
http://${RM_HOST}/conf?name=yarn.nodemanager.aux-services
{"property"{"key":"yarn.resourcemanager.hostname","value":"${RM_HOST}","isFinal":false,"resource":"yarn-site.xml"}}
{code}
This change is fully backwards compatible.
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