alluxio.metrics

Interface SingleValueAggregator

All Superinterfaces:

MetricsAggregator

public interface SingleValueAggregator
extends MetricsAggregator

Interface for the aggregator that aggregates into a single value from the metrics of different hosts.

Method Summary

Modifier and Type	Method and Description
long	getValue(Map<MetricsFilter,Set<Metric>> map) Gets the aggregated value from the filtered metrics.

Methods inherited from interface alluxio.metrics.MetricsAggregator

getFilters, getName

Method Detail

getValue

long getValue(Map<MetricsFilter,Set<Metric>> map)

Gets the aggregated value from the filtered metrics. The values of map will be the filtered metrics using the MetricsFilter defined in MetricsAggregator.getFilters().

Parameters:

map - a map of MetricsFilter to the set of metrics that it filter to

Returns:

the aggregated value