Examples of DCAwareRoundRobinPolicy

com.datastax.driver.core.policies.DCAwareRoundRobinPolicy

A data-center aware Round-robin load balancing policy.

This policy provides round-robin queries over the node of the local data center. It also includes in the query plans returned a configurable number of hosts in the remote data centers, but those are always tried after the local nodes. In other words, this policy guarantees that no host in a remote data center will be queried unless no host in the local data center can be reached.

If used with a single data center, this policy is equivalent to the {@code LoadBalancingPolicy.RoundRobin} policy, but its DC awarenessincurs a slight overhead so the {@code LoadBalancingPolicy.RoundRobin}policy could be preferred to this policy in that case.


        case DCAwareRoundRobinPolicy:


            String usedHostsPerRemoteDc = (String) conProperties.get("usedHostsPerRemoteDc");
            String localdc = (String) conProperties.get("localdc");
            loadBalancingPolicy = new DCAwareRoundRobinPolicy(localdc == null ? "DC1" : localdc,
                    usedHostsPerRemoteDc != null ? Integer.parseInt(usedHostsPerRemoteDc) : 0);
            break;


        // case RoundRobinPolicy:
        // loadBalancingPolicy = new RoundRobinPolicy();

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of DCAwareRoundRobinPolicy

Examples of com.datastax.driver.core.policies.DCAwareRoundRobinPolicy