public void MetricSet_Serializes_And_Deserializes()
{
var samples = new List <MetricSample>
{
new MetricSample("sample_1", 1), new MetricSample("sample*\"2", 2), new MetricSample("sample_1", 3)
};
var metricSet = new Elastic.Apm.Metrics.MetricSet(1603343944891, samples);
var json = _payloadItemSerializer.Serialize(metricSet);
json.Should().Be("{\"samples\":{\"sample_1\":{\"value\":1.0},\"sample__2\":{\"value\":2.0}},\"timestamp\":1603343944891}");
var deserialized = _payloadItemSerializer.Deserialize <Elastic.Apm.Metrics.MetricSet>(json);
deserialized.Timestamp.Should().Be(metricSet.Timestamp);
deserialized.Samples.Count().Should().Be(2);
var count = 0;
foreach (var sample in deserialized.Samples)
{
sample.KeyValue.Key.Should().Be(samples[count].KeyValue.Key.Replace("*", "_").Replace("\"", "_"));
sample.KeyValue.Value.Should().Be(samples[count].KeyValue.Value);
++count;
}
}
internal void CollectAllMetricsImpl()
{
_logger.Trace()?.Log("CollectAllMetrics started");
var samplesFromAllProviders = CollectMetricsFromProviders();
if (samplesFromAllProviders.IsEmpty())
{
_logger.Debug()?.Log("No metrics collected (no provider returned valid samples) - nothing to send to APM Server");
return;
}
var metricSet = new MetricSet(TimeUtils.TimestampNow(), samplesFromAllProviders);
try
{
_payloadSender.QueueMetrics(metricSet);
_logger.Debug()
?.Log("Metrics collected: {data}",
samplesFromAllProviders.Any()
? samplesFromAllProviders.Select(n => n.ToString()).Aggregate((i, j) => i + ", " + j)
: "no metrics collected");
}
catch (Exception e)
{
_logger.Error()
?.LogException(e, "Failed sending metrics through PayloadSender - metrics collection stops");
_timer.Stop();
_timer.Dispose();
}
}
internal void CollectAllMetricsImpl()
{
_logger.Trace()?.Log("CollectAllMetrics started");
var samplesFromAllProviders = new List <MetricSample>();
// ReSharper disable once ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator
foreach (var metricsProvider in MetricsProviders)
{
if (metricsProvider.ConsecutiveNumberOfFailedReads == MaxTryWithoutSuccess)
{
continue;
}
try
{
_logger.Trace()?.Log("Start collecting {MetricsProviderName}", metricsProvider.DbgName);
var samplesFromCurrentProvider = metricsProvider.GetSamples();
if (samplesFromCurrentProvider != null)
{
var sampleArray = samplesFromCurrentProvider as MetricSample[] ?? samplesFromCurrentProvider.ToArray();
if (sampleArray.Any())
{
_logger.Trace()?.Log("Collected {MetricsProviderName} - adding it to MetricSet", metricsProvider.DbgName);
samplesFromAllProviders.AddRange(sampleArray);
}
metricsProvider.ConsecutiveNumberOfFailedReads = 0;
}
else
{
metricsProvider.ConsecutiveNumberOfFailedReads++;
}
}
catch (Exception e)
{
metricsProvider.ConsecutiveNumberOfFailedReads++;
_logger.Error()
?.LogException(e, "Failed reading {ProviderName} {NumberOfFail} times", metricsProvider.DbgName,
metricsProvider.ConsecutiveNumberOfFailedReads);
}
if (metricsProvider.ConsecutiveNumberOfFailedReads != MaxTryWithoutSuccess)
{
continue;
}
_logger.Info()
?.Log("Failed reading {operationName} {numberOfTimes} consecutively - the agent won't try reading {operationName} anymore",
metricsProvider.DbgName, metricsProvider.ConsecutiveNumberOfFailedReads, metricsProvider.DbgName);
}
var metricSet = new MetricSet(TimeUtils.TimestampNow(), samplesFromAllProviders);
try
{
_payloadSender.QueueMetrics(metricSet);
_logger.Debug()
?.Log("Metrics collected: {data}",
samplesFromAllProviders.Any()
? samplesFromAllProviders.Select(n => n.ToString()).Aggregate((i, j) => i + ", " + j)
: "no metrics collected");
}
catch (Exception e)
{
_logger.Error()
?.LogException(e, "Failed sending metrics through PayloadSender - metrics collection stops");
_timer.Stop();
_timer.Dispose();
}
}
internal void CollectAllMetrics()
{
var sync = Interlocked.CompareExchange(ref _syncPoint, 1, 0);
if (sync != 0)
{
return;
}
try
{
var samplesFromAllProviders = new List <MetricSample>();
foreach (var metricsProvider in MetricsProviders)
{
if (metricsProvider.ConsecutiveNumberOfFailedReads == MaxTryWithoutSuccess)
{
continue;
}
try
{
var samplesFromCurrentProvider = metricsProvider.GetSamples();
if (samplesFromCurrentProvider != null)
{
var sampleArray = samplesFromCurrentProvider as MetricSample[] ?? samplesFromCurrentProvider.ToArray();
if (sampleArray.Any())
{
samplesFromAllProviders.AddRange(sampleArray);
}
metricsProvider.ConsecutiveNumberOfFailedReads = 0;
}
else
{
metricsProvider.ConsecutiveNumberOfFailedReads++;
}
}
catch (Exception e)
{
metricsProvider.ConsecutiveNumberOfFailedReads++;
_logger.Error()
?.LogException(e, "Failed reading {ProviderName} {NumberOfFail} times", metricsProvider.DbgName,
metricsProvider.ConsecutiveNumberOfFailedReads);
}
if (metricsProvider.ConsecutiveNumberOfFailedReads != MaxTryWithoutSuccess)
{
continue;
}
_logger.Info()
?.Log("Failed reading {operationName} {numberOfTimes} consecutively - the agent won't try reading {operationName} anymore",
metricsProvider.DbgName, metricsProvider.ConsecutiveNumberOfFailedReads, metricsProvider.DbgName);
}
var metricSet = new MetricSet(TimeUtils.TimestampNow(), samplesFromAllProviders);
try
{
_payloadSender.QueueMetrics(metricSet);
_logger.Debug()
?.Log("Metrics collected: {data}",
samplesFromAllProviders.Any()
? samplesFromAllProviders.Select(n => n.ToString()).Aggregate((i, j) => i + ", " + j)
: "no metrics collected");
}
catch (Exception e)
{
_logger.Error()
?.LogException(e, "Failed sending metrics through PayloadSender - metrics collection stops");
_timer.Stop();
_timer.Dispose();
}
}
catch (Exception e)
{
_logger.Error()
?.LogExceptionWithCaller(e);
}
finally
{
_syncPoint = 0;
}
}
