Branch 1 fsnamesystem - aajisaka/hadoop-metrics GitHub Wiki

  • FilesTotal
    • Current number of files and directories
  • BlocksTotal
    • Current number of blocks
  • CapacityTotalGB
    • Total raw capacity including non-dfs used space in GB
  • CapacityUsedGB
    • Total used space by data nodes in GB
  • CapacityRemainingGB
    • Total raw capacity non-used in GB
  • CapacityTotal
    • Total raw capacity including non-dfs used space in bytes
  • CapacityUsed
    • Total used space by data nodes in bytes
  • CapacityRemaining
    • Total raw capacity non-used in bytes
  • CapacityUsedNonDFS
    • Total used space by data nodes for non-dfs purposes in bytes (calculated by CapacityTotal - CapacityUsed - CapacityRemaining)
  • TotalLoad
    • Current number of active datanode Xceiver connections
  • CorruptBlocks
    • Current number corrupt replicas (see HDFS-5189)
  • ExcessBlocks
    • Current number of excess blocks
  • PendingDeletionBlocks
    • Current number of blocks pending deletion
  • PendingReplicationBlocks
    • Current number of blocks pending replication
  • UnderReplicatedBlocks
    • Current number of blocks under replicated
  • ScheduledReplicationBlocks
    • Current number of blocks scheduled for replication
  • MissingBlocks
    • Current number of missing blocks
  • BlockCapacity
    • Current number of block capacity
  • StaleDataNodes
    • Current number of data nodes marked stale due to delayed heartbeat

For more details, see org.apache.hadoop.hdfs.server.namenode.FSNameSystem.java.