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

Package com.datastax.driver.core.policies

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

com.datastax.driver.core.policies.LimitingLoadBalancingPolicy
Sample load balancing policy that limits the number of nodes the driver connects to. If more nodes are available, they are marked as IGNORED. When one of the "chosen" nodes goes down, the policy picks one of the ignored nodes to replace it.
This kind of policy can be used to alleviate the load on a cluster that has a lot of clients.
For simplicity, this policy does not distinguish LOCAL and REMOTE nodes.

    public void should_refresh_single_connected_host() {
        CCMBridge ccm = null;
        Cluster cluster = null;
        try {
            // This will make the driver use at most 2 hosts, the others will be ignored
            LimitingLoadBalancingPolicy loadBalancingPolicy = new LimitingLoadBalancingPolicy(new RoundRobinPolicy(), 2, 1);


            // Setup a 3-host cluster, start only two hosts so that we know in advance which ones the policy will use
            ccm = CCMBridge.create("test");
            ccm.populate(3);
            ccm.start(1);

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Related Classes of com.datastax.driver.core.policies.LimitingLoadBalancingPolicy

com.datastax.driver.core.PoolingOptionsTest

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