Package alluxio.metrics

Interface Summary

Interface	Description
MetricsAggregator	Interface for the aggregator that aggregates a cluster-level metric from the metrics of different hosts.
MultiValueMetricsAggregator	An interface for the aggregator that aggregates metrics of different hosts into multiple cluster-level metrics.
SingleValueAggregator	Interface for the aggregator that aggregates into a single value from the metrics of different hosts.

Class Summary

Class	Description
InstrumentedExecutorService	A wrapper around InstrumentedExecutorService that allows the metrics to be reset by MetricsSystem.resetAllMetrics().
MaxReservoir	A wrapper around Reservoir that keeps track of the max value sent as an update to this reservoir.
Metric	A metric of a given instance.
MetricInfo	Metric information.
MetricKey	Metric keys.
MetricKey.Builder	Builder to create MetricKey instances.
MetricKey.Name	A nested class to hold named string constants for their corresponding metrics.
MetricsConfig	Configurations used by the metrics system.
MetricsFilter	A filter that matches the instance-level metrics by the instance type and metric name.
MetricsSystem	A MetricsSystem is created by a specific instance(master, worker).
MetricsSystem.MultiTimerContext	A timer context with multiple timers.
OperationSystemGaugeSet	A set of counters for the os metric.
TimeSeries	Represents a time series which can be graphed in the UI.

Enum Summary

Enum	Description
MetricInfo.UfsOps	The list of under filesystem operations triggered by master or workers.
MetricsSystem.InstanceType	An enum of supported instance type.