Examples with CostBalancerStrategy org.apache.druid.server.coordinator.CostBalancerStrategy used on opensource projects

Example 1 with CostBalancerStrategy

use of org.apache.druid.server.coordinator.CostBalancerStrategy in project druid by druid-io.

the class CachingCostBalancerStrategyTest method decisionTest.

@Test
public void decisionTest() {
    CachingCostBalancerStrategy cachingCostBalancerStrategy = createCachingCostBalancerStrategy(serverHolderList, executorService);
    CostBalancerStrategy costBalancerStrategy = createCostBalancerStrategy(executorService);
    int notEqual = segmentQueries.stream().mapToInt(s -> {
        ServerHolder s1 = cachingCostBalancerStrategy.findNewSegmentHomeBalancer(s, serverHolderList);
        ServerHolder s2 = costBalancerStrategy.findNewSegmentHomeBalancer(s, serverHolderList);
        return (s1.getServer().getName().equals(s2.getServer().getName())) ? 0 : 1;
    }).sum();
    Assert.assertTrue(((double) notEqual / (double) segmentQueries.size()) < 0.01);
}