public void TokenMap_Rebuild_With_Decommissioned_DC_Existing_RF()
{
// Create a 2dc:1node each cluster
var clusterOptions = new TestClusterOptions();
clusterOptions.Dc2NodeLength = 1;
var testCluster = TestClusterManager.CreateNew(1, clusterOptions);
testCluster.Builder = Cluster.Builder().AddContactPoint("127.0.0.1").WithLoadBalancingPolicy(new DCAwareRoundRobinPolicy("dc1"));
testCluster.Cluster = testCluster.Builder.Build();
testCluster.Session = testCluster.Cluster.Connect();
PolicyTestTools policyTestTools = new PolicyTestTools();
// Create a ks with RF = dc1:1, dc2:1
policyTestTools.CreateMultiDcSchema(testCluster.Session, 1, 1);
policyTestTools.InitPreparedStatement(testCluster, 12, false, ConsistencyLevel.All);
// Replicas now in each node in each dc
policyTestTools.Query(testCluster, 12, false);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "1:" + DefaultCassandraPort, 12);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "2:" + DefaultCassandraPort, 0);
testCluster.Cluster.Shutdown();
testCluster.DecommissionNode(1);
// dc1 no longer has any hosts
testCluster.Builder = Cluster.Builder().AddContactPoint("127.0.0.2").WithLoadBalancingPolicy(new DCAwareRoundRobinPolicy("dc2"));
testCluster.Cluster = testCluster.Builder.Build();
// Should be able to connect and rebuild token map
testCluster.Session = testCluster.Cluster.Connect(policyTestTools.DefaultKeyspace);
policyTestTools.ResetCoordinators();
policyTestTools.Query(testCluster, 12, false);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "1:" + DefaultCassandraPort, 0);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "2:" + DefaultCassandraPort, 12);
testCluster.Cluster.Shutdown();
}
public void RoundRobin_TwoDCs_DcAware()
{
// Setup
PolicyTestTools policyTestTools = new PolicyTestTools();
ITestCluster testCluster = TestClusterManager.GetNonShareableTestCluster(1, 1, DefaultMaxClusterCreateRetries, true);
testCluster.Builder = Cluster.Builder().WithLoadBalancingPolicy(new DCAwareRoundRobinPolicy("dc2"));
testCluster.InitClient();
policyTestTools.CreateMultiDcSchema(testCluster.Session);
policyTestTools.InitPreparedStatement(testCluster, 12);
policyTestTools.Query(testCluster, 12);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "1:" + DefaultCassandraPort, 0);
policyTestTools.AssertQueried(testCluster.ClusterIpPrefix + "2:" + DefaultCassandraPort, 12);
}
