netdata/netdata

{
  "beans":[
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      "name":"Hadoop:service=NameNode,name=JvmMetrics",
      "modelerType":"JvmMetrics",
      "tag.Context":"jvm",
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      "MemHeapMaxM":843.0,
      "MemMaxM":843.0,
      "GcCount":1699,
      "GcTimeMillis":3483,
      "GcNumWarnThresholdExceeded":0,
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      "ThreadsNew":0,
      "ThreadsRunnable":7,
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      "LogFatal":0,
      "LogError":0,
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    {
      "name":"Hadoop:service=NameNode,name=FSNamesystem",
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      "tag.HAState":"active",
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      "MissingBlocks":0,
      "MissingReplOneBlocks":0,
      "ExpiredHeartbeats":0,
      "TransactionsSinceLastCheckpoint":1,
      "TransactionsSinceLastLogRoll":1,
      "LastWrittenTransactionId":624,
      "LastCheckpointTime":1566814983890,
      "CapacityTotal":107351072768,
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      "CapacityUsed":2372116480,
      "CapacityUsedGB":2.0,
      "CapacityRemaining":65861697536,
      "ProvidedCapacityTotal":0,
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      "CapacityUsedNonDFS":39117258752,
      "TotalLoad":2,
      "SnapshottableDirectories":0,
      "Snapshots":0,
      "NumEncryptionZones":0,
      "LockQueueLength":0,
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      "NumFilesUnderConstruction":0,
      "NumActiveClients":0,
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      "PendingReconstructionBlocks":0,
      "UnderReplicatedBlocks":0,
      "LowRedundancyBlocks":0,
      "CorruptBlocks":0,
      "ScheduledReplicationBlocks":0,
      "PendingDeletionBlocks":0,
      "LowRedundancyReplicatedBlocks":0,
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      "MissingReplicatedBlocks":0,
      "MissingReplicationOneBlocks":0,
      "HighestPriorityLowRedundancyReplicatedBlocks":0,
      "HighestPriorityLowRedundancyECBlocks":0,
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      "TotalReplicatedBlocks":15,
      "LowRedundancyECBlockGroups":0,
      "CorruptECBlockGroups":0,
      "MissingECBlockGroups":0,
      "BytesInFutureECBlockGroups":0,
      "PendingDeletionECBlocks":0,
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      "ExcessBlocks":0,
      "NumTimedOutPendingReconstructions":0,
      "PostponedMisreplicatedBlocks":0,
      "PendingDataNodeMessageCount":0,
      "MillisSinceLastLoadedEdits":0,
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      "NumLiveDataNodes":2,
      "NumDeadDataNodes":0,
      "NumDecomLiveDataNodes":0,
      "NumDecomDeadDataNodes":0,
      "VolumeFailuresTotal":0,
      "EstimatedCapacityLostTotal":0,
      "NumDecommissioningDataNodes":0,
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      "TotalSyncCount":2,
      "NumInMaintenanceLiveDataNodes":0,
      "NumInMaintenanceDeadDataNodes":0,
      "NumEnteringMaintenanceDataNodes":0
    },
    {
      "name":"Hadoop:service=NameNode,name=RpcActivityForPort9000",
      "modelerType":"RpcActivityForPort9000",
      "tag.port":"9000",
      "tag.Context":"rpc",
      "tag.NumOpenConnectionsPerUser":"{\"hadoop\":2}",
      "tag.Hostname":"dev-master-02.dev.local",
      "ReceivedBytes":240431351,
      "SentBytes":25067414,
      "RpcQueueTimeNumOps":585402,
      "RpcQueueTimeAvgTime":0.05813953488372093,
      "RpcProcessingTimeNumOps":585402,
      "RpcProcessingTimeAvgTime":0.0,
      "DeferredRpcProcessingTimeNumOps":0,
      "DeferredRpcProcessingTimeAvgTime":0.0,
      "RpcAuthenticationFailures":0,
      "RpcAuthenticationSuccesses":0,
      "RpcAuthorizationFailures":0,
      "RpcAuthorizationSuccesses":14327,
      "RpcClientBackoff":0,
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      "NumOpenConnections":2,
      "CallQueueLength":0,
      "NumDroppedConnections":0
    }
  ]
}