YARN 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 YARN:
-
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.
| Metric Name | Description | Unit | Parents | CDH Version |
|---|---|---|---|---|
| alerts_rate | The number of alerts. | events per second | cluster | CDH 5, CDH 6, CDH 7 |
| apps_ingested_rate | YARN applications ingested by the Service Monitor | Applications per second | cluster | CDH 5, CDH 6, CDH 7 |
| events_critical_rate | The number of critical events. | events per second | cluster | CDH 5, CDH 6, CDH 7 |
| events_important_rate | The number of important events. | events per second | cluster | CDH 5, CDH 6, CDH 7 |
| events_informational_rate | The number of informational events. | events per second | cluster | CDH 5, CDH 6, CDH 7 |
| health_bad_rate | Percentage of Time with Bad Health | seconds per second | cluster | CDH 5, CDH 6, CDH 7 |
| health_concerning_rate | Percentage of Time with Concerning Health | seconds per second | cluster | CDH 5, CDH 6, CDH 7 |
| health_disabled_rate | Percentage of Time with Disabled Health | seconds per second | cluster | CDH 5, CDH 6, CDH 7 |
| health_good_rate | Percentage of Time with Good Health | seconds per second | cluster | CDH 5, CDH 6, CDH 7 |
| health_unknown_rate | Percentage of Time with Unknown Health | seconds per second | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_application_adl_bytes_read_rate | ADL bytes read. Called 'adl_bytes_read' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_adl_bytes_written_rate | ADL bytes written. Called 'adl_bytes_written' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_application_duration_rate | How long YARN took to execute this application. Called 'application_duration' in searches. | ms per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_cm_cpu_milliseconds_rate | yarn.analysis.cm_cpu_milliseconds.description | ms per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_cpu_milliseconds_rate | CPU time. Called 'cpu_milliseconds' in searches. | ms per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_file_bytes_read_rate | File bytes read. Called 'file_bytes_read' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_file_bytes_written_rate | File bytes written. Called 'file_bytes_written' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_hdfs_bytes_read_rate | HDFS bytes read. Called 'hdfs_bytes_read' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_hdfs_bytes_written_rate | HDFS bytes written. Called 'hdfs_bytes_written' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_maps_rate | The number of Map tasks in this MapReduce job. Called 'maps_total' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_mb_millis_maps_rate | Map memory allocation. Called 'mb_millis_maps' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_mb_millis_reduces_rate | Reduce memory allocation. Called 'mb_millis_reduces' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_reduces_rate | The number of reduce tasks in this MapReduce job. Called 'reduces_total' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_s3a_bytes_read_rate | S3A bytes read. Called 's3a_bytes_read' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_s3a_bytes_written_rate | S3A bytes written. Called 's3a_bytes_written' in searches. | bytes per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_vcores_millis_maps_rate | Map CPU allocation. Called 'vcores_millis_maps' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_application_vcores_millis_reduces_rate | Reduce CPU allocation. Called 'vcores_millis_reduces' in searches. | items per second | CDH 5, CDH 6, CDH 7 | |
| yarn_reports_containers_allocated_memory | Memory allocated to YARN containers | MB seconds | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_containers_allocated_vcores | VCores allocated to YARN containers | VCore seconds | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_containers_used_cpu | CPU used by YARN containers | Percent seconds | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_containers_used_memory | Memory used by YARN containers | MB seconds | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_containers_used_vcores | VCores used by YARN containers | VCore seconds | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_usage_aggregation_duration | The duration for generating YARN usage reporting metrics by aggregating YARN container usage metrics | ms | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_usage_apps_with_metadata | YARN applications for which container usage was computed and also had metadata | Applications | cluster | CDH 5, CDH 6, CDH 7 |
| yarn_reports_usage_apps_without_metadata | YARN applications for which container usage was computed but did not have metadata | Applications | cluster | CDH 5, CDH 6, CDH 7 |
