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...

{

  "NAMENODE": {

    "Component": [

      {

        "type": "ganglia",

        "metrics": {

          "default": {

            "metrics/dfs/FSNamesystem/TotalLoad": {

              "metric": "dfs.FSNamesystem.TotalLoad",

              "pointInTime": false,

              "temporal": true

            }

        } ]

    },

    "HostComponent" : [

         { "type" : "ganglia", ... }

         {  "type" : "jmx", .... }

   ]

}

 

Sample API calls to retrieve metric definitions:

Service metrics:
Template => http://<ambari-server>:<port>/api/v1/stacks/<stackName>/versions/<stackVersion>/services/<serviceName>/artifacts/metrics_descriptor
Example => http://localhost:8080/api/v1/stacks/HDP/versions/2.3/services/HDFS/artifacts/metrics_descriptor
Cluster & Host metrics:
Template => http://<ambari-server>:<port>/api/v1/stacks/<stackName>/versions/<stackVersion>/artifacts/metrics_descriptor
Example => http://localhost:8080/api/v1/stacks/HDP/versions/2.3/artifacts/metrics_descriptor