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