---
rules:
 - bean: Hadoop:service=NameNode,name=FSNamesystem
   unit: "1"
   prefix: hadoop.
   metricAttribute:
     node_name: param(tag.Hostname)
   mapping:
     CapacityUsed:
       metric: capacity.CapacityUsed
       type: updowncounter
       unit: By
       desc: Current used capacity across all data nodes
     CapacityTotal:
       metric: capacity.CapacityTotal
       type: updowncounter
       unit: By
     BlocksTotal:
       metric: block.BlocksTotal
       type: updowncounter
       unit: '{blocks}'
       desc: Current number of allocated blocks in the system
     MissingBlocks:
       metric: block.MissingBlocks
       type: updowncounter
       unit: '{blocks}'
       desc: Current number of missing blocks
     CorruptBlocks:
       metric: block.CorruptBlocks
       type: updowncounter
       unit: '{blocks}'
       desc: Current number of blocks with corrupt replicas
     VolumeFailuresTotal:
       metric: volume.VolumeFailuresTotal
       type: updowncounter
       unit: '{volumes}'
       desc: Total number of volume failures across all data nodes
       metricAttribute:
         direction: const(sent)
     FilesTotal:
       metric: file.FilesTotal
       type: updowncounter
       unit: '{files}'
       desc: Current number of files and directories
     TotalLoad:
       metric: file.TotalLoad
       type: updowncounter
       unit: '{operations}'
       desc: Current number of connections
     NumLiveDataNodes:
       metric: datenode.Count
       type: updowncounter
       unit: '{nodes}'
       desc: The Number of data nodes
       metricAttribute:
         state: const(live)
     NumDeadDataNodes:
       metric: datenode.Count
       type: updowncounter
       unit: '{nodes}'
       desc: The Number of data nodes
       metricAttribute:
         state: const(dead)