Activity Metrics

In addition to these base metrics, many aggregate metrics are available. If an entity type has parents defined, you can formulate all possible aggregate metrics using the formula base_metric_across_parents.

In addition, metrics for aggregate totals can be formed by adding the prefix total_ to the front of the metric name.

Use the type-ahead feature in the Cloudera Manager chart browser to find the exact aggregate metric name, in case the plural form does not end in "s".

Metric Name	Description	Unit	Parents	CDH Version
combine_input_records	Number of input records to combiner	records		CDH 5
combine_output_records	Number of records output by combiner	records		CDH 5
cpu_system	Kernel CPU time used (CPUs / s)	CPU seconds per second		CDH 5
cpu_system_rate	Total System CPU	seconds per second		CDH 5
cpu_user	Current User CPUs	CPU seconds per second		CDH 5
cpu_user_rate	Total CPU user time	seconds per second		CDH 5
data_local_maps	Number of map tasks reading local data	tasks		CDH 5
disk_read_rate	Reads from local disk (bytes)	bytes per second		CDH 5
disk_write_rate	Writes to local disk (bytes)	bytes per second		CDH 5
duration	Activity or attempt duration	ms		CDH 5
fairscheduler_demand	Fair Scheduler demand	Fair Scheduler demand		CDH 5
fairscheduler_fair_share	Fair Scheduler fair share	Fair Scheduler fair share		CDH 5
fairscheduler_min_share	Fair Scheduler minimum share	Fair Scheduler min share		CDH 5
fairscheduler_running_tasks	Fair Scheduler running tasks	Fair Scheduler running tasks		CDH 5
fairscheduler_weight	Fair Scheduler weight	Fair Scheduler weight		CDH 5
fallow_slots_millis_maps	Total time spent by all map tasks waiting after reserving slots	ms		CDH 5
fallow_slots_millis_reduces	Total time spent by all reduce tasks waiting after reserving slots	ms		CDH 5
hdfs_read_rate	Reads from HDFS (bytes)	bytes per second		CDH 5
hdfs_write_rate	Writes to HDFS (bytes)	bytes per second		CDH 5
map_input_bytes	Input to map task (bytes)	bytes		CDH 5
map_input_records	Number of input records to map task	records		CDH 5
map_output_bytes	Output from map task (bytes)	bytes		CDH 5
map_output_records	Number of records output by map task	records		CDH 5
map_progress	Activity map-phase progress	progress		CDH 5
maps_failed_rate	Maps Failed	tasks per second		CDH 5
maps_running	Maps Running	tasks		CDH 5
mem_rss	Resident memory used	bytes		CDH 5
mem_virtual	Virtual memory used	bytes		CDH 5
num_desired_maps	Desired map tasks	tasks		CDH 5
num_desired_reduces	Desired reduce tasks	tasks		CDH 5
other_local_maps	Other-local maps	tasks		CDH 5
rack_local_maps	Rack-local map tasks	tasks		CDH 5
reduce_input_records	Number of records input to reduce task	records		CDH 5
reduce_output_records	Number of records output by reduce task	records		CDH 5
reduce_progress	Activity reduce-phase progress	progress		CDH 5
reduce_shuffle_bytes	Number of bytes in reduce shuffle	bytes		CDH 5
reduces_failed_rate	Reduces failed	tasks per second		CDH 5
reduces_running	Reduces Running	tasks		CDH 5
reduces_running_in_reduce_phase	Reduce Reduces Running	tasks		CDH 5
reduces_running_in_shuffle_phase	Shuffle Reduces Running	tasks		CDH 5
reduces_running_in_sort_phase	Sort Reduces Running	tasks		CDH 5
slots_millis_maps	Total time spent by all map tasks in execution	ms		CDH 5
slots_millis_reduces	Total time spent by all reduce tasks in execution	ms		CDH 5
spilled_records_rate	Number of spilled records	records per second		CDH 5
split_raw_bytes	Number of raw split bytes	bytes		CDH 5
total_launched_maps	Total launched map task attempts	tasks		CDH 5
total_launched_reduces	Total launched reduce task attempts	tasks		CDH 5