Impala Pool User Metrics

Reference information for Impala Pool User 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 Pool User:

• queries_ingested_rate_across_clusters
• total_queries_ingested_rate_across_clusters

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

queries_ingested_rate

Description

Impala queries ingested by the Service Monitor

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7

queries_oom_rate

Description

Impala queries for which memory consumption exceeded what was allowed

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7

queries_rejected_rate

Description

Impala queries rejected from admission, commonly due to the queue being full or insufficient memory

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7

queries_spilled_memory_rate

Description

Impala queries that spilled to disk

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7

queries_successful_rate

Description

Impala queries that ran to completion successfully

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7

queries_timed_out_rate

Description

Impala queries that timed out waiting in queue during admission

Unit

queries per second

Parents

cluster, impala, impala_pool

CDH Version

CDH 5, CDH 6, CDH 7