protected override Task <HealthCheckResult> CheckAsync(CancellationToken token = default(CancellationToken))
{
if (!_options.ApdexTrackingEnabled)
{
return(Task.FromResult(HealthCheckResult.Ignore()));
}
var apdex = _metrics.Value.Snapshot.GetApdexValue(_context, _metricName);
if (apdex.Score < 0.5)
{
return(Task.FromResult(HealthCheckResult.Unhealthy($"Frustrating. Score: {apdex.Score}")));
}
if (apdex.Score >= 0.5 && apdex.Score < 0.75)
{
return(Task.FromResult(HealthCheckResult.Degraded($"Tolerating. Score: {apdex.Score}")));
}
return(Task.FromResult(HealthCheckResult.Healthy($"Satisfied. Score {apdex.Score}")));
}
protected override Task <HealthCheckResult> CheckAsync(CancellationToken token = default(CancellationToken))
{
if (!_options.ApdexTrackingEnabled)
{
return(Task.FromResult(HealthCheckResult.Ignore()));
}
var metricsContext = _metrics.Value.Advanced.Data.ReadContext(AspNetMetricsRegistry.Contexts.HttpRequests.ContextName);
var apdex = metricsContext.ApdexValueFor(AspNetMetricsRegistry.Contexts.HttpRequests.ApdexScores.ApdexMetricName);
if (apdex.Score < 0.5)
{
return(Task.FromResult(HealthCheckResult.Unhealthy($"Frustrating. Score: {apdex.Score}")));
}
if (apdex.Score >= 0.5 && apdex.Score < 0.75)
{
return(Task.FromResult(HealthCheckResult.Degraded($"Tolerating. Score: {apdex.Score}")));
}
return(Task.FromResult(HealthCheckResult.Healthy($"Satisfied. Score {apdex.Score}")));
}
public static IHealthCheckRegistry AddHttpGetCheck(
this IHealthCheckRegistry registry,
string name,
Uri uri,
TimeSpan timeout)
{
registry.Register(
name,
async cancellationToken =>
{
using (var tokenWithTimeout = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken))
{
tokenWithTimeout.CancelAfter(timeout);
var response = await HttpClient.GetAsync(uri, tokenWithTimeout.Token).ConfigureAwait(false);
return(response.IsSuccessStatusCode
? HealthCheckResult.Healthy($"OK. {uri}")
: HealthCheckResult.Unhealthy($"FAILED. {uri} status code was {response.StatusCode}"));
}
});
return(registry);
}
/// <summary>
/// Create a failure (degraded or unhealthy) status response.
/// </summary>
/// <param name="message">Status message.</param>
/// <param name="degradedOnError">
/// If true, create a degraded status response.
/// Otherwise create an unhealthy status response. (default: false)
/// </param>
/// <returns>Failure status response.</returns>
private static HealthCheckResult HealthCheckResultOnError(string message, bool degradedOnError)
{
return(degradedOnError
? HealthCheckResult.Degraded(message)
: HealthCheckResult.Unhealthy(message));
}
