public void TestSummaryDecay()
{
var baseTime = new DateTime(2015, 1, 1, 0, 0, 0, DateTimeKind.Utc);
DateTimeOffset currentTime = baseTime;
var summaryConfig = new SummaryConfiguration("test_summary", "helpless", Array.Empty <string>(), false,
new List <QuantileEpsilonPair> {
new QuantileEpsilonPair(0.1d, 0.001d)
}, TimeSpan.FromSeconds(100), 10);
var child = new Summary(summaryConfig, Array.Empty <string>(), () => currentTime);
var values = new double[summaryConfig.Objectives.Count];
for (int i = 1; i <= 1000; i++)
{
currentTime = baseTime.AddSeconds(i);
child.Observe(i, null);
if (i % 10 == 0)
{
child.ForkState(out var _, out var _, values);
double got = values[0];
double want = Math.Max((double)i / 10, (double)i - 90);
Assert.True(Math.Abs(got - want) <= 1, $"{i}. got {got} want {want}");
}
}
currentTime = baseTime.AddSeconds(1000).AddSeconds(100);
// Wait for MaxAge without observations and make sure quantiles are NaN.
child.ForkState(out _, out _, values);
Assert.True(double.IsNaN(values[0]));
}
public Summary CreateSummary(string name, string help, string[] labelNames, IList <QuantileEpsilonPair> objectives, TimeSpan?maxAge, int?ageBuckets, int?bufCap)
{
var config = new SummaryConfiguration
{
LabelNames = labelNames
};
if (objectives != null)
{
config.Objectives = objectives.ToArray();
}
if (maxAge != null)
{
config.MaxAge = maxAge.Value;
}
if (ageBuckets != null)
{
config.AgeBuckets = ageBuckets.Value;
}
if (bufCap != null)
{
config.BufferSize = bufCap.Value;
}
return(CreateSummary(name, help, config));
}
public Summary CreateSummary(string name, string help, SummaryConfiguration configuration)
{
configuration = configuration ?? SummaryConfiguration.Default;
var metric = new Summary(name, help, configuration.LabelNames, configuration.SuppressInitialValue, configuration.Objectives, configuration.MaxAge, configuration.AgeBuckets, configuration.BufferSize);
return((Summary)_registry.GetOrAdd(metric));
}
private static Summary GetRequestDurationSummary()
{
var config = new SummaryConfiguration
{
LabelNames = new[] { "method" }
};
return(Metrics.CreateSummary("personal_data_request_duration", "Average request duration", config));
}
protected virtual ICollector <IObserver> CreateHttpRequestDurationSummary()
{
var configuration = new SummaryConfiguration
{
SuppressInitialValue = true,
LabelNames = DefaultRequestDurationLabels,
Objectives = new[]
{
new QuantileEpsilonPair(0.5, 0.05),
new QuantileEpsilonPair(0.9, 0.05),
new QuantileEpsilonPair(0.95, 0.01),
new QuantileEpsilonPair(0.99, 0.005),
}
};
_options.ConfigureRequestDurationSummary?.Invoke(configuration);
if (configuration.LabelNames != DefaultRequestDurationLabels)
{
throw new ArgumentException("The requests in progress summary configuration is missing the required default labels");
}
return(_metrics.CreateSummary("http_server_request_duration_seconds", "The duration in seconds that HTTP requests take to process", configuration));
}
private Summary CreateSummary()
{
var config = new SummaryConfiguration("test", string.Empty, Array.Empty <string>(), false);
return(new Summary(config, Array.Empty <string>()));
}
/// <summary> /// Summaries track the trends in events over time (10 minutes by default). /// </summary> public static Summary CreateSummary(string name, string help, SummaryConfiguration configuration = null) => _defaultFactory.CreateSummary(name, help, configuration);
public Summary GetOrdAddSummary(string name, string description, SummaryConfiguration config = null)
{
return(Summaries.GetOrAdd(name, Prometheus.Metrics.CreateSummary(name, description, config)));
}
/// <inheritdoc/>
public Summary Summary(string name, string help, SummaryConfiguration configuration = null)
{
return(_innerMetricFactory.CreateSummary(name, help, configuration));
}
