RoundRobinPolicy Class

A Round-robin load balancing policy.

This policy queries nodes in a round-robin fashion. For a given query, if an host fail, the next one (following the round-robin order) is tried, until all hosts have been tried.

This policy is not datacenter aware and will include every known Cassandra host in its round robin algorithm. If you use multiple datacenter this will be inefficient and you will want to use the DCAwareRoundRobinPolicy load balancing policy instead.

Inheritance Hierarchy

SystemObject
CassandraRoundRobinPolicy

Namespace: Cassandra
Assembly: Cassandra (in Cassandra.dll) Version: 3.10.0

Syntax

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public class RoundRobinPolicy : ILoadBalancingPolicy

The RoundRobinPolicy type exposes the following members.

Constructors

	Name	Description
	RoundRobinPolicy	Initializes a new instance of the RoundRobinPolicy class

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Methods

	Name	Description
	Distance	Return the HostDistance for the provided host. This policy consider all nodes as local. This is generally the right thing to do in a single datacenter deployment. If you use multiple datacenter, see DCAwareRoundRobinPolicy instead.
	Initialize
	NewQueryPlan	Returns the hosts to use for a new query. The returned plan will try each known host of the cluster. Upon each call to this method, the ith host of the plans returned will cycle over all the host of the cluster in a round-robin fashion.

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Reference

Cassandra Namespace