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The Sink implementations responsible for sending metrics to AMS, buffer data for 1 minute before sending. TimelineMetricCache implementation provides a simple cache implementation to achieve this behavior.

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Connecting (POST) to <ambari-metrics-collector>:6188/ws/v1/timeline/metrics/
Http response: 200 OK

GET

GET http://<ambari-metrics-collector>:6188/ws/v1/timeline/metrics?metricNames=AMBARI_METRICS.SmokeTest.FakeMetric&appId=amssmoketestfake&hostname=<hostname>&precision=seconds&startTime=1432075838000&endTime=1432075959000

Http response: 200 OK

Http data:

{

   "metrics": [

      {

         "timestamp": 1432075898089,

         "metricname": "AMBARI_METRICS.SmokeTest.FakeMetric",

         "appid": "amssmoketestfake",

         "hostname": "ambari20-5.c.pramod-thangali.internal",

         "starttime": 1432075898000,

         "metrics": {

            "1432075898000": 0.963781711428,

            "1432075899000": 1432075898000

         }

      }

   ]

}