public override T Register <T>(string name, string desc, T source)
{
lock (this)
{
MetricsSourceBuilder sb = MetricsAnnotations.NewSourceBuilder(source);
MetricsSource s = sb.Build();
MetricsInfo si = sb.Info();
string name2 = name == null?si.Name() : name;
string finalDesc = desc == null?si.Description() : desc;
string finalName = DefaultMetricsSystem.SourceName(name2, !monitoring);
// be friendly to non-metrics tests
allSources[finalName] = s;
Log.Debug(finalName + ", " + finalDesc);
if (monitoring)
{
RegisterSource(finalName, finalDesc, s);
}
// We want to re-register the source to pick up new config when the
// metrics system restarts.
Register(finalName, new _AbstractCallback_238(this, finalName, finalDesc, s));
return(source);
}
}
public virtual void TestGetMetricsAndJmx()
{
// create test source with a single metric counter of value 0
TestMetricsSourceAdapter.TestSource source = new TestMetricsSourceAdapter.TestSource
("test");
MetricsSourceBuilder sb = MetricsAnnotations.NewSourceBuilder(source);
MetricsSource s = sb.Build();
IList <MetricsTag> injectedTags = new AList <MetricsTag>();
MetricsSourceAdapter sa = new MetricsSourceAdapter("test", "test", "test desc", s
, injectedTags, null, null, 1, false);
// all metrics are initially assumed to have changed
MetricsCollectorImpl builder = new MetricsCollectorImpl();
IEnumerable <MetricsRecordImpl> metricsRecords = sa.GetMetrics(builder, true);
// Validate getMetrics and JMX initial values
MetricsRecordImpl metricsRecord = metricsRecords.GetEnumerator().Next();
Assert.Equal(0L, metricsRecord.Metrics().GetEnumerator().Next(
).Value());
Thread.Sleep(100);
// skip JMX cache TTL
Assert.Equal(0L, (Number)sa.GetAttribute("C1"));
// change metric value
source.IncrementCnt();
// validate getMetrics and JMX
builder = new MetricsCollectorImpl();
metricsRecords = sa.GetMetrics(builder, true);
metricsRecord = metricsRecords.GetEnumerator().Next();
Assert.True(metricsRecord.Metrics().GetEnumerator().HasNext());
Thread.Sleep(100);
// skip JMX cache TTL
Assert.Equal(1L, (Number)sa.GetAttribute("C1"));
}
public virtual void TestPurgeOldMetrics()
{
// create test source with a single metric counter of value 1
TestMetricsSourceAdapter.PurgableSource source = new TestMetricsSourceAdapter.PurgableSource
(this);
MetricsSourceBuilder sb = MetricsAnnotations.NewSourceBuilder(source);
MetricsSource s = sb.Build();
IList <MetricsTag> injectedTags = new AList <MetricsTag>();
MetricsSourceAdapter sa = new MetricsSourceAdapter("tst", "tst", "testdesc", s, injectedTags
, null, null, 1, false);
MBeanInfo info = sa.GetMBeanInfo();
bool sawIt = false;
foreach (MBeanAttributeInfo mBeanAttributeInfo in info.GetAttributes())
{
sawIt |= mBeanAttributeInfo.GetName().Equals(source.lastKeyName);
}
Assert.True("The last generated metric is not exported to jmx",
sawIt);
Thread.Sleep(1000);
// skip JMX cache TTL
info = sa.GetMBeanInfo();
sawIt = false;
foreach (MBeanAttributeInfo mBeanAttributeInfo_1 in info.GetAttributes())
{
sawIt |= mBeanAttributeInfo_1.GetName().Equals(source.lastKeyName);
}
Assert.True("The last generated metric is not exported to jmx",
sawIt);
}
Create()
{
MetricsSystem ms = DefaultMetricsSystem.Instance();
Org.Apache.Hadoop.Yarn.Server.Sharedcachemanager.Metrics.CleanerMetrics metricObject
= new Org.Apache.Hadoop.Yarn.Server.Sharedcachemanager.Metrics.CleanerMetrics();
MetricsSourceBuilder sb = MetricsAnnotations.NewSourceBuilder(metricObject);
MetricsSource s = sb.Build();
ms.Register("cleaner", "The cleaner service of truly shared cache", s);
metricObject.metricSource = s;
return(metricObject);
}
