public virtual void TestMetasaveAfterDelete()
{
for (int i = 0; i < 2; i++)
{
Path file = new Path("/filestatus" + i);
CreateFile(fileSys, file);
}
cluster.StopDataNode(1);
// wait for namenode to discover that a datanode is dead
Sharpen.Thread.Sleep(15000);
nnRpc.SetReplication("/filestatus0", (short)4);
nnRpc.Delete("/filestatus0", true);
nnRpc.Delete("/filestatus1", true);
nnRpc.MetaSave("metasaveAfterDelete.out.txt");
// Verification
BufferedReader reader = null;
try
{
FileInputStream fstream = new FileInputStream(GetLogFile("metasaveAfterDelete.out.txt"
));
DataInputStream @in = new DataInputStream(fstream);
reader = new BufferedReader(new InputStreamReader(@in));
reader.ReadLine();
string line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Live Datanodes: 1"));
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Dead Datanodes: 1"));
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Metasave: Blocks waiting for replication: 0"
));
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Mis-replicated blocks that have been postponed:"
));
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Metasave: Blocks being replicated: 0")
);
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Metasave: Blocks 2 waiting deletion from 1 datanodes."
));
//skip 2 lines to reach HDFS-9033 scenario.
line = reader.ReadLine();
line = reader.ReadLine();
line = reader.ReadLine();
NUnit.Framework.Assert.IsTrue(line.Equals("Metasave: Number of datanodes: 2"));
line = reader.ReadLine();
NUnit.Framework.Assert.IsFalse(line.Contains("NaN"));
}
finally
{
if (reader != null)
{
reader.Close();
}
}
}
public virtual void TestDelete()
{
string dir = "/testNamenodeRetryCache/testDelete";
// Two retried calls to create a non existent file
NewCall();
nnRpc.Mkdirs(dir, perm, true);
NewCall();
NUnit.Framework.Assert.IsTrue(nnRpc.Delete(dir, false));
NUnit.Framework.Assert.IsTrue(nnRpc.Delete(dir, false));
NUnit.Framework.Assert.IsTrue(nnRpc.Delete(dir, false));
// non-retried call fails and gets false as return
NewCall();
NUnit.Framework.Assert.IsFalse(nnRpc.Delete(dir, false));
}
// add a bunch of transactions.
public virtual void Run()
{
thr = Sharpen.Thread.CurrentThread();
FsPermission p = new FsPermission((short)0x1ff);
int i = 0;
while (!stopped)
{
try
{
string dirname = "/thr-" + thr.GetId() + "-dir-" + i;
nn.Mkdirs(dirname, p, true);
nn.Delete(dirname, true);
}
catch (SafeModeException)
{
}
catch (Exception e)
{
// This is OK - the tests will bring NN in and out of safemode
Log.Warn("Got error in transaction thread", e);
caught.CompareAndSet(null, e);
break;
}
i++;
}
}
