public virtual void TestNameNode()
{
int numDatanodes = 2;
cluster = new MiniDFSCluster.Builder(config).NumDataNodes(numDatanodes).Build();
cluster.WaitActive();
WriteFile(cluster.GetFileSystem(), new Path("/test1"), 2);
JMXGet jmx = new JMXGet();
string serviceName = "NameNode";
jmx.SetService(serviceName);
jmx.Init();
// default lists namenode mbeans only
NUnit.Framework.Assert.IsTrue("error printAllValues", CheckPrintAllValues(jmx));
//get some data from different source
NUnit.Framework.Assert.AreEqual(numDatanodes, System.Convert.ToInt32(jmx.GetValue
("NumLiveDataNodes")));
MetricsAsserts.AssertGauge("CorruptBlocks", long.Parse(jmx.GetValue("CorruptBlocks"
)), MetricsAsserts.GetMetrics("FSNamesystem"));
NUnit.Framework.Assert.AreEqual(numDatanodes, System.Convert.ToInt32(jmx.GetValue
("NumOpenConnections")));
cluster.Shutdown();
MBeanServerConnection mbsc = ManagementFactory.GetPlatformMBeanServer();
ObjectName query = new ObjectName("Hadoop:service=" + serviceName + ",*");
ICollection <ObjectName> names = mbsc.QueryNames(query, null);
NUnit.Framework.Assert.IsTrue("No beans should be registered for " + serviceName,
names.IsEmpty());
}
public virtual void TestDataNode()
{
int numDatanodes = 2;
cluster = new MiniDFSCluster.Builder(config).NumDataNodes(numDatanodes).Build();
cluster.WaitActive();
WriteFile(cluster.GetFileSystem(), new Path("/test"), 2);
JMXGet jmx = new JMXGet();
string serviceName = "DataNode";
jmx.SetService(serviceName);
jmx.Init();
NUnit.Framework.Assert.AreEqual(fileSize, System.Convert.ToInt32(jmx.GetValue("BytesWritten"
)));
cluster.Shutdown();
MBeanServerConnection mbsc = ManagementFactory.GetPlatformMBeanServer();
ObjectName query = new ObjectName("Hadoop:service=" + serviceName + ",*");
ICollection <ObjectName> names = mbsc.QueryNames(query, null);
NUnit.Framework.Assert.IsTrue("No beans should be registered for " + serviceName,
names.IsEmpty());
}
/// <exception cref="System.Exception"/>
protected internal void VerifyRamDiskJMXMetric(string metricName, long expectedValue
)
{
NUnit.Framework.Assert.AreEqual(expectedValue, System.Convert.ToInt32(jmx.GetValue
(metricName)));
}