public async Task Should_Remove_Decommissioned_Node()
{
const int numberOfNodes = 2;
_realCluster = TestClusterManager.CreateNew(numberOfNodes);
using (var cluster = Cluster.Builder().AddContactPoint(_realCluster.InitialContactPoint).Build())
{
await Connect(cluster, false, session =>
{
Assert.AreEqual(numberOfNodes, cluster.AllHosts().Count);
if (TestClusterManager.SupportsDecommissionForcefully())
{
_realCluster.DecommissionNodeForcefully(numberOfNodes);
}
else
{
_realCluster.DecommissionNode(numberOfNodes);
}
_realCluster.Stop(numberOfNodes);
Trace.TraceInformation("Node decommissioned");
string decommisionedNode = null;
TestHelper.RetryAssert(() =>
{
decommisionedNode = _realCluster.ClusterIpPrefix + 2;
Assert.False(TestUtils.IsNodeReachable(IPAddress.Parse(decommisionedNode)));
//New node should be part of the metadata
Assert.AreEqual(1, cluster.AllHosts().Count);
}, 100, 100);
var queried = false;
for (var i = 0; i < 10; i++)
{
var rs = session.Execute("SELECT key FROM system.local");
if (rs.Info.QueriedHost.Address.ToString() == decommisionedNode)
{
queried = true;
break;
}
}
Assert.False(queried, "Removed node should be queried");
}).ConfigureAwait(false);
}
}
public async Task Should_Remove_Decommissioned_Node(bool asyncConnect)
{
const int numberOfNodes = 2;
_testCluster = TestClusterManager.CreateNew(numberOfNodes);
var cluster = Cluster.Builder()
.AddContactPoints(_testCluster.InitialContactPoint, _testCluster.ClusterIpPrefix + numberOfNodes)
.Build();
await Run(cluster, asyncConnect, session =>
{
Assert.AreEqual(numberOfNodes, cluster.AllHosts().Count);
if (TestClusterManager.DseVersion >= Version.Parse("5.1.0"))
{
_testCluster.DecommissionNodeForcefully(numberOfNodes);
}
else
{
_testCluster.DecommissionNode(numberOfNodes);
}
Trace.TraceInformation("Node decommissioned");
Thread.Sleep(10000);
var decommisionedNode = _testCluster.ClusterIpPrefix + numberOfNodes;
Assert.False(TestUtils.IsNodeReachable(IPAddress.Parse(decommisionedNode)));
//New node should be part of the metadata
Assert.AreEqual(numberOfNodes - 1, cluster.AllHosts().Count);
var queried = false;
for (var i = 0; i < 10; i++)
{
var rs = session.Execute("SELECT key FROM system.local");
if (rs.Info.QueriedHost.Address.ToString() == decommisionedNode)
{
queried = true;
break;
}
}
Assert.False(queried, "Removed node should be queried");
});
}