public virtual void TestCreateInvalidTopology()
{
NetworkTopology invalCluster = new NetworkTopology();
DatanodeDescriptor[] invalDataNodes = new DatanodeDescriptor[] { DFSTestUtil.GetDatanodeDescriptor
("1.1.1.1", "/d1/r1"), DFSTestUtil.GetDatanodeDescriptor("2.2.2.2", "/d1/r1"), DFSTestUtil
.GetDatanodeDescriptor("3.3.3.3", "/d1") };
invalCluster.Add(invalDataNodes[0]);
invalCluster.Add(invalDataNodes[1]);
try
{
invalCluster.Add(invalDataNodes[2]);
NUnit.Framework.Assert.Fail("expected InvalidTopologyException");
}
catch (NetworkTopology.InvalidTopologyException e)
{
NUnit.Framework.Assert.IsTrue(e.Message.StartsWith("Failed to add "));
NUnit.Framework.Assert.IsTrue(e.Message.Contains("You cannot have a rack and a non-rack node at the same "
+ "level of the network topology."));
}
}
public virtual void TestCountNumNodes()
{
// create the topology
NetworkTopology cluster = new NetworkTopology();
cluster.Add(GetNewNode("node1", "/d1/r1"));
TestClusterTopology.NodeElement node2 = GetNewNode("node2", "/d1/r2");
cluster.Add(node2);
cluster.Add(GetNewNode("node3", "/d1/r3"));
TestClusterTopology.NodeElement node3 = GetNewNode("node4", "/d1/r4");
cluster.Add(node3);
// create exclude list
IList <Node> excludedNodes = new AList <Node>();
Assert.Equal("4 nodes should be available", 4, cluster.CountNumOfAvailableNodes
(NodeBase.Root, excludedNodes));
TestClusterTopology.NodeElement deadNode = GetNewNode("node5", "/d1/r2");
excludedNodes.AddItem(deadNode);
Assert.Equal("4 nodes should be available with extra excluded Node"
, 4, cluster.CountNumOfAvailableNodes(NodeBase.Root, excludedNodes));
// add one existing node to exclude list
excludedNodes.AddItem(node3);
Assert.Equal("excluded nodes with ROOT scope should be considered"
, 3, cluster.CountNumOfAvailableNodes(NodeBase.Root, excludedNodes));
Assert.Equal("excluded nodes without ~ scope should be considered"
, 2, cluster.CountNumOfAvailableNodes("~" + deadNode.GetNetworkLocation(), excludedNodes
));
Assert.Equal("excluded nodes with rack scope should be considered"
, 1, cluster.CountNumOfAvailableNodes(deadNode.GetNetworkLocation(), excludedNodes
));
// adding the node in excluded scope to excluded list
excludedNodes.AddItem(node2);
Assert.Equal("excluded nodes with ~ scope should be considered"
, 2, cluster.CountNumOfAvailableNodes("~" + deadNode.GetNetworkLocation(), excludedNodes
));
// getting count with non-exist scope.
Assert.Equal("No nodes should be considered for non-exist scope"
, 0, cluster.CountNumOfAvailableNodes("/non-exist", excludedNodes));
}
public virtual void SetupDatanodes()
{
dataNodes = new DatanodeDescriptor[] { DFSTestUtil.GetDatanodeDescriptor("1.1.1.1"
, "/d1/r1"), DFSTestUtil.GetDatanodeDescriptor("2.2.2.2", "/d1/r1"), DFSTestUtil
.GetDatanodeDescriptor("3.3.3.3", "/d1/r2"), DFSTestUtil.GetDatanodeDescriptor("4.4.4.4"
, "/d1/r2"), DFSTestUtil.GetDatanodeDescriptor("5.5.5.5", "/d1/r2"), DFSTestUtil
.GetDatanodeDescriptor("6.6.6.6", "/d2/r3"), DFSTestUtil.GetDatanodeDescriptor("7.7.7.7"
, "/d2/r3"), DFSTestUtil.GetDatanodeDescriptor("8.8.8.8", "/d2/r3"), DFSTestUtil
.GetDatanodeDescriptor("9.9.9.9", "/d3/r1"), DFSTestUtil.GetDatanodeDescriptor("10.10.10.10"
, "/d3/r1"), DFSTestUtil.GetDatanodeDescriptor("11.11.11.11", "/d3/r1"), DFSTestUtil
.GetDatanodeDescriptor("12.12.12.12", "/d3/r2"), DFSTestUtil.GetDatanodeDescriptor
("13.13.13.13", "/d3/r2"), DFSTestUtil.GetDatanodeDescriptor("14.14.14.14", "/d4/r1"
), DFSTestUtil.GetDatanodeDescriptor("15.15.15.15", "/d4/r1"), DFSTestUtil.GetDatanodeDescriptor
("16.16.16.16", "/d4/r1"), DFSTestUtil.GetDatanodeDescriptor("17.17.17.17", "/d4/r1"
), DFSTestUtil.GetDatanodeDescriptor("18.18.18.18", "/d4/r1"), DFSTestUtil.GetDatanodeDescriptor
("19.19.19.19", "/d4/r1"), DFSTestUtil.GetDatanodeDescriptor("20.20.20.20", "/d4/r1"
) };
for (int i = 0; i < dataNodes.Length; i++)
{
cluster.Add(dataNodes[i]);
}
dataNodes[9].SetDecommissioned();
dataNodes[10].SetDecommissioned();
}
