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Date: Thu, 19 Oct 2017 07:00:13 +0000 (UTC)
From: "Weiwei Yang (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.13110584.1508396399000.5712.1508396413626@Atlassian.JIRA>
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Subject: [jira] [Created] (HDFS-12684) Ozone: SCM metrics NodeCount is
 overlapping with node manager metrics
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archived-at: Thu, 19 Oct 2017 07:00:20 -0000

Weiwei Yang created HDFS-12684:
----------------------------------

             Summary: Ozone: SCM metrics NodeCount is overlapping with node manager metrics
                 Key: HDFS-12684
                 URL: https://issues.apache.org/jira/browse/HDFS-12684
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ozone, scm
            Reporter: Weiwei Yang
            Priority: Minor


I found this issue while reviewing HDFS-11468, from http://scm_host:9876/jmx, both SCM and SCMNodeManager has {{NodeCount}} metrics

{noformat}
 {
    "name" : "Hadoop:service=StorageContainerManager,name=StorageContainerManagerInfo,component=ServerRuntime",
    "modelerType" : "org.apache.hadoop.ozone.scm.StorageContainerManager",
    "ClientRpcPort" : "9860",
    "DatanodeRpcPort" : "9861",
    "NodeCount" : [ {
      "key" : "STALE",
      "value" : 0
    }, {
      "key" : "DECOMMISSIONING",
      "value" : 0
    }, {
      "key" : "DECOMMISSIONED",
      "value" : 0
    }, {
      "key" : "FREE_NODE",
      "value" : 0
    }, {
      "key" : "RAFT_MEMBER",
      "value" : 0
    }, {
      "key" : "HEALTHY",
      "value" : 0
    }, {
      "key" : "DEAD",
      "value" : 0
    }, {
      "key" : "UNKNOWN",
      "value" : 0
    } ],
    "CompileInfo" : "2017-10-17T06:47Z xxx",
    "Version" : "3.1.0-SNAPSHOT, r6019a25908ce75155656f13effd8e2e53ed43461",
    "SoftwareVersion" : "3.1.0-SNAPSHOT",
    "StartedTimeInMillis" : 1508393551065
  }, {
    "name" : "Hadoop:service=SCMNodeManager,name=SCMNodeManagerInfo",
    "modelerType" : "org.apache.hadoop.ozone.scm.node.SCMNodeManager",
    "NodeCount" : [ {
      "key" : "STALE",
      "value" : 0
    }, {
      "key" : "DECOMMISSIONING",
      "value" : 0
    }, {
      "key" : "DECOMMISSIONED",
      "value" : 0
    }, {
      "key" : "FREE_NODE",
      "value" : 0
    }, {
      "key" : "RAFT_MEMBER",
      "value" : 0
    }, {
      "key" : "HEALTHY",
      "value" : 0
    }, {
      "key" : "DEAD",
      "value" : 0
    }, {
      "key" : "UNKNOWN",
      "value" : 0
    } ],
    "OutOfChillMode" : false,
    "MinimumChillModeNodes" : 1,
    "ChillModeStatus" : "Still in chill mode, waiting on nodes to report in. 0 nodes reported, minimal 1 nodes required."
  }
{noformat}

hence, propose to remove {{NodeCount}} from {{SCMMXBean}}.


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