MapReduce 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".

For example, the following metric names may be valid for MapReduce:

  • alerts_rate_across_clusters
  • total_alerts_rate_across_clusters

Some metrics, such as alerts_rate, apply to nearly every metric context. Others only apply to a certain service or role.

For more information about metrics, see Cloudera Manager Metrics and Metric Aggregation.

Metric Name Description Unit Parents CDH Version
alerts_rate The number of alerts. events per second cluster CDH 5
events_critical_rate The number of critical events. events per second cluster CDH 5
events_important_rate The number of important events. events per second cluster CDH 5
events_informational_rate The number of informational events. events per second cluster CDH 5
health_bad_rate Percentage of Time with Bad Health seconds per second cluster CDH 5
health_concerning_rate Percentage of Time with Concerning Health seconds per second cluster CDH 5
health_disabled_rate Percentage of Time with Disabled Health seconds per second cluster CDH 5
health_good_rate Percentage of Time with Good Health seconds per second cluster CDH 5
health_unknown_rate Percentage of Time with Unknown Health seconds per second cluster CDH 5
jobs_completed_rate Jobs Completed jobs per second cluster CDH 5
jobs_failed_rate Jobs Failed jobs per second cluster CDH 5
jobs_killed_rate Jobs Killed jobs per second cluster CDH 5
jobs_preparing Jobs Preparing jobs cluster CDH 5
jobs_running Jobs Running jobs cluster CDH 5
jobs_submitted_rate Jobs Submitted jobs per second cluster CDH 5
map_slots Map Slots slots cluster CDH 5
maps_failed_rate Maps Failed tasks per second cluster CDH 5
maps_running Maps Running tasks cluster CDH 5
mr_data_local_maps_rate Total number of data-local map task attempts tasks per second cluster CDH 5
mr_other_local_maps_rate Total number of other-local map task attempts tasks per second cluster CDH 5
mr_rack_local_maps_rate Total number of rack-local map task attempts tasks per second cluster CDH 5
reduce_slots Reduce slots slots cluster CDH 5
reduces_failed_rate Reduces failed tasks per second cluster CDH 5
reduces_running Reduces Running tasks cluster CDH 5
trackers_blacklisted TaskTrackers Blacklisted TaskTrackers cluster CDH 5
waiting_maps Waiting Maps tasks cluster CDH 5
waiting_reduces Waiting Reduces tasks cluster CDH 5