Flume Sink 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 Flume Sink:
- batch_complete_rate_across_agents
- total_batch_complete_rate_across_agents
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 |
|---|---|---|---|---|
| batch_complete_rate | The number of append batches attempted containing the maximum number of events supported by the next hop. | batches per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| batch_empty_rate | The number of append batches attempted containing zero events. | batches per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| batch_underflow_rate | The number of append batches attempted containing less than the maximum number of events supported by the next hop. | batches per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| connection_closed_rate | The number of connections closed by this sink. | connections per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| connection_created_rate | The number of connections created by this sink. Only applicable to some sink types. | connections per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| connection_failed_rate | The number of failed connections. | connections per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| event_drain_attempt_rate | The total number of events that have been attempted to be drained to the next hop. | events per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |
| event_drain_success_rate | The total number of events that have successfully been drained to the next hop. | events per second | agent, cluster, flume, flume_sink_tier, rack | CDH 5 |