Package org.apache.pekko.cluster.metrics

Class CapacityMetricsSelector

java.lang.Object

org.apache.pekko.cluster.metrics.CapacityMetricsSelector

All Implemented Interfaces:

Serializable, MetricsSelector

Direct Known Subclasses:

CpuMetricsSelector$, HeapMetricsSelector$, MixMetricsSelectorBase, SystemLoadAverageMetricsSelector$

public abstract class CapacityMetricsSelector
extends Object
implements MetricsSelector

A MetricsSelector producing weights from remaining capacity. The weights are typically proportional to the remaining capacity.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
CapacityMetricsSelector()

Method Summary

Modifier and Type	Method	Description
abstract scala.collection.immutable.Map<Address,Object>	capacity(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)	Remaining capacity for each node.
scala.collection.immutable.Map<Address,Object>	weights(scala.collection.immutable.Map<Address,Object> capacity)	Converts the capacity values to weights.
scala.collection.immutable.Map<Address,Object>	weights(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)	The weights per address, based on the capacity produced by the nodeMetrics.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CapacityMetricsSelector

public CapacityMetricsSelector()

Method Details

capacity

public abstract scala.collection.immutable.Map<Address,Object> capacity(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)

Remaining capacity for each node. The value is between 0.0 and 1.0, where 0.0 means no remaining capacity (full utilization) and 1.0 means full remaining capacity (zero utilization).

weights

public scala.collection.immutable.Map<Address,Object> weights(scala.collection.immutable.Map<Address,Object> capacity)

Converts the capacity values to weights. The node with lowest capacity gets weight 1 (lowest usable capacity is 1%) and other nodes gets weights proportional to their capacity compared to the node with lowest capacity.

weights

public scala.collection.immutable.Map<Address,Object> weights(scala.collection.immutable.Set<NodeMetrics> nodeMetrics)

The weights per address, based on the capacity produced by the nodeMetrics.

Specified by:

weights in interface MetricsSelector