Package io.servicetalk.loadbalancer

Class P2CLoadBalancingPolicy<ResolvedAddress,C extends LoadBalancedConnection>

java.lang.Object

io.servicetalk.loadbalancer.LoadBalancingPolicy<ResolvedAddress,C>

io.servicetalk.loadbalancer.P2CLoadBalancingPolicy<ResolvedAddress,C>

Type Parameters:

ResolvedAddress - the type of the resolved address.

C - the type of the load balanced connection.

public final class P2CLoadBalancingPolicy<ResolvedAddress,C extends LoadBalancedConnection>
extends LoadBalancingPolicy<ResolvedAddress,C>

A random selection "power of two choices" load balancing policy.

This LoadBalancer selection algorithm is based on work by Michael David Mitzenmacher in The Power of Two Choices in Randomized Load Balancing.

This load balancing policy is characterized by the algorithm: - select two hosts randomly: hosta, and hostb. - if neither host is healthy, repeat selection process until max-effort. - pick the 'best' host of the two options.

See Also:

• Mitzenmacher (2001) The Power of Two * Choices in Randomized Load Balancing

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	P2CLoadBalancingPolicy.Builder	A builder for immutable P2CLoadBalancingPolicy instances.

Method Summary

Modifier and Type	Method	Description
String	name()	The name of the load balancing policy.
String	toString()

Methods inherited from class java.lang.Object

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

Method Details

name

public String name()

Description copied from class: LoadBalancingPolicy

The name of the load balancing policy.

Specified by:

name in class LoadBalancingPolicy<ResolvedAddress,C extends LoadBalancedConnection>

Returns:

the name of the load balancing policy

toString

public String toString()

Specified by:

toString in class LoadBalancingPolicy<ResolvedAddress,C extends LoadBalancedConnection>