Impala 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 Impala:

  • 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
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
queries_ingested_rate Impala queries ingested by the Service Monitor queries per second cluster CDH 5, CDH 6, CDH 7
queries_oom_rate Impala queries for which memory consumption exceeded what was allowed queries per second cluster CDH 5, CDH 6, CDH 7
queries_rejected_rate Impala queries rejected from admission, commonly due to the queue being full or insufficient memory queries per second cluster CDH 5, CDH 6, CDH 7
queries_spilled_memory_rate Impala queries that spilled to disk queries per second cluster CDH 5, CDH 6, CDH 7
queries_successful_rate Impala queries that ran to completion successfully queries per second cluster CDH 5, CDH 6, CDH 7
queries_timed_out_rate Impala queries that timed out waiting in queue during admission queries per second cluster CDH 5, CDH 6, CDH 7