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https://issues.apache.org/jira/browse/AMBARI-1523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13589652#comment-13589652
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Nate Cole commented on AMBARI-1523:
-----------------------------------
+1, patch looks good
> Ambari API: Resources doesn't always honor partial response fields
> restrictions
> -------------------------------------------------------------------------------
>
> Key: AMBARI-1523
> URL: https://issues.apache.org/jira/browse/AMBARI-1523
> Project: Ambari
> Issue Type: Bug
> Reporter: Tom Beerbower
> Assignee: Tom Beerbower
> Fix For: 1.3.0
>
> Attachments: AMBARI-1523.patch
>
>
> For the request:
> /api/v1/clusters/c1/hosts/dev.hortonworks.com?fields=host_components
> or the request:
> http://localhost:8080/api/v1/clusters/c1/services/HDFS/components/NAMENODE?fields=host_components
> Metrics data is returned for the top level resource even though it isn't
> specified in the partial response data. This is bad because gathering metrics
> data is expensive and it should not be gathered if it is not needed. This is
> a significant performance issue.
> This seems to be an issue with resources that contain metric data for queries
> requesting a sub-resource only.
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