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Date: Wed, 7 Oct 2015 10:06:26 +0000 (UTC)
From: "Dmytro Sen (JIRA)" <jira@apache.org>
To: dev@ambari.apache.org
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Subject: [jira] [Created] (AMBARI-13336) Flume agent specific metrics not
 showing up as graphs
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Dmytro Sen created AMBARI-13336:
-----------------------------------

             Summary: Flume agent specific metrics not showing up as graphs
                 Key: AMBARI-13336
                 URL: https://issues.apache.org/jira/browse/AMBARI-13336
             Project: Ambari
          Issue Type: Bug
          Components: ambari-metrics, ambari-server
    Affects Versions: 2.1.2
            Reporter: Dmytro Sen
            Assignee: Dmytro Sen
            Priority: Critical
             Fix For: 2.1.3


After creating a Flume agent with below configuration, I selected the host in the agents table of Flume service summary page. I was expecting graphs of metrics to show up for that host, but I dont see any graphs.
{noformat}
# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1
#
# # Describe/configure the source
a1.sources.r1.type = netcat
a1.sources.r1.bind = localhost
a1.sources.r1.port = 44444
#
# # Describe the sink
#a1.sinks.k1.type = logger
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /tmp/events_a1_%y-%m-%d/%H%M/%S
a1.sinks.k1.hdfs.filePrefix = events-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 1
a1.sinks.k1.hdfs.roundUnit = minute
a1.sinks.k1.hdfs.useLocalTimeStamp = true
#
# # Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100
#
# # Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1
{noformat}

The reason graphs are not getting created is the below GET call which should return (from Ambari-1.7.0)
{code}

{
  "href" : "http://gs170-1:8080/api/v1/clusters/c1/hosts/gs170-3/host_components/FLUME_HANDLER?fields=metrics/flume/flume/CHANNEL/*&_=1443160542629",
  "HostRoles" : {
    "cluster_name" : "c1",
    "component_name" : "FLUME_HANDLER",
    "host_name" : "gs170-3"
  },
  "host" : {
    "href" : "http://gs170-1:8080/api/v1/clusters/c1/hosts/gs170-3"
  },
  "metrics" : {
    "flume" : {
      "flume" : {
        "CHANNEL" : {
          "c1" : {
            "ChannelCapacity" : 1000.0,
            "ChannelFillPercentage" : 0.0,
            "ChannelSize" : 0.0,
            "EventPutAttemptCount" : 0.0,
            "EventPutSuccessCount" : 0.0,
            "EventTakeAttemptCount" : 99.0,
            "EventTakeSuccessCount" : 0.0,
            "StartTime" : 1.4431597139E12,
            "StopTime" : 0.0
          }
        }
      }
    }
  }
}
{code}
but instead returns without the channel name:
{code}

{
  "href" : "http://c6401:8080/api/v1/clusters/c1/hosts/c6402.ambari.apache.org/host_components/FLUME_HANDLER?fields=metrics/flume/flume/CHANNEL/*&_=1443161204742",
  "HostRoles" : {
    "cluster_name" : "c1",
    "component_name" : "FLUME_HANDLER",
    "host_name" : "c6402.ambari.apache.org"
  },
  "host" : {
    "href" : "http://c6401:8080/api/v1/clusters/c1/hosts/c6402.ambari.apache.org"
  },
  "metrics" : {
    "flume" : {
      "flume" : {
        "CHANNEL" : {
          "ChannelCapacity" : 1000.0,
          "ChannelFillPercentage" : 0.0,
          "ChannelSize" : 0.0,
          "EventPutAttemptCount" : 0.0,
          "EventPutSuccessCount" : 0.0,
          "EventTakeAttemptCount" : 8.0,
          "EventTakeSuccessCount" : 0.0,
          "StartTime" : 1.443127087019E12,
          "StopTime" : 0.0
        }
      }
    }
  }
}
{code}

Due to this reason no metric graphs are created and the sections are empty.


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