Here is the list of metrics based on MBeans exposed by Hadoop.
| Metric Name | Type | Attributes | Description |
|---|---|---|---|
| hadoop.capacity.CapacityUsed | UpDownCounter | node_name | Current used capacity across all data nodes |
| hadoop.capacity.CapacityTotal | UpDownCounter | node_name | Current raw capacity of data nodes |
| hadoop.block.BlocksTotal | UpDownCounter | node_name | Current number of allocated blocks in the system |
| hadoop.block.MissingBlocks | UpDownCounter | node_name | Current number of missing blocks |
| hadoop.block.CorruptBlocks | UpDownCounter | node_name | Current number of blocks with corrupt replicas |
| hadoop.volume.VolumeFailuresTotal | UpDownCounter | node_name | Total number of volume failures across all data nodes |
| hadoop.file.FilesTotal | UpDownCounter | node_name | Current number of files and directories |
| hadoop.file.TotalLoad | UpDownCounter | node_name | Current number of connection |
| hadoop.datanode.Count | UpDownCounter | node_name, state | The Number of data nodes |