[HDFS-12684] Ozone: SCMMXBean NodeCount is overlapping with NodeManagerMXBean

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: HDFS-7240
• Component/s: ozone, scm
• Hadoop Flags: Reviewed
• Assignee: Weiwei Yang
• Reporter: Weiwei Yang
• Created: 19/Oct/17 06:59
• Updated: 26/Apr/18 21:55
• Resolved: 24/Oct/17 06:15

Description

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

 {
    "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."
  }

hence, propose to remove NodeCount from SCMMXBean.