/// <exception cref="System.IO.IOException"/>
private void TestPlacement(string clientMachine, string clientRack)
{
// write 5 files and check whether all times block placed
for (int i = 0; i < 5; i++)
{
string src = "/test-" + i;
// Create the file with client machine
HdfsFileStatus fileStatus = namesystem.StartFile(src, perm, clientMachine, clientMachine
, EnumSet.Of(CreateFlag.Create), true, ReplicationFactor, DefaultBlockSize, null
, false);
LocatedBlock locatedBlock = nameNodeRpc.AddBlock(src, clientMachine, null, null,
fileStatus.GetFileId(), null);
NUnit.Framework.Assert.AreEqual("Block should be allocated sufficient locations",
ReplicationFactor, locatedBlock.GetLocations().Length);
if (clientRack != null)
{
NUnit.Framework.Assert.AreEqual("First datanode should be rack local", clientRack
, locatedBlock.GetLocations()[0].GetNetworkLocation());
}
nameNodeRpc.AbandonBlock(locatedBlock.GetBlock(), fileStatus.GetFileId(), src, clientMachine
);
}
}
