public void FlushMetrics()
{
flushStopwatch.Restart();
if (BeforeFlush != null)
{
BeforeFlush();
}
var time_stamp = (long)Math.Round(DateTimeToUnixTimestamp(DateTime.UtcNow)); // seconds
if (old_timestamp > 0)
{
gauges["statsd.timestamp_lag_namespace"] = (time_stamp - old_timestamp - (FlushInterval / 1000));
}
old_timestamp = time_stamp;
Metrics metrics = null;
flushMetricsReaderWriterLock.EnterWriteLock();
try
{
metrics = new Metrics
{
counters = new Dictionary<string, long>(counters),
gauges = new Dictionary<string, long>(gauges),
timers = new Dictionary<string, List<long>>(timers),
timer_counters = new Dictionary<string, long>(timer_counters),
sets = new Dictionary<string, HashSet<string>>(sets),
counter_rates = new Dictionary<string, long>(),
timer_data = new Dictionary<string, Dictionary<string, long>>(),
pctThreshold = PctThreshold,
statsd_metrics = new Dictionary<string, long>(),
};
ClearMetrics();
}
finally
{
flushMetricsReaderWriterLock.ExitWriteLock();
}
ProcessMetrics(metrics, FlushInterval, time_stamp);
if (FlushToConsole)
{
Console.Clear();
Console.WriteLine("Flush=" + time_stamp);
foreach (var item in metrics.counters)
{
Console.WriteLine("stats.counters.{0}.count = {1}", item.Key, item.Value);
Console.WriteLine("stats.counters.{0}.rate = {1}", item.Key, metrics.counter_rates[item.Key]);
}
foreach (var item in metrics.timers)
{
foreach (var data in metrics.timer_data[item.Key])
{
Console.WriteLine("stats.timers.{0}.{1} = {2}", item.Key, data.Key, data.Value);
}
}
foreach (var item in metrics.gauges)
{
Console.WriteLine("stats.gauges.{0} = {1}", item.Key, item.Value);
}
foreach (var item in metrics.sets)
{
Console.WriteLine("stats.sets.{0}.count = {1}", item.Key, item.Value.Count);
}
Console.WriteLine("Flush End=" + time_stamp);
}
if (OnFlush != null)
{
OnFlush(time_stamp, metrics);
}
flushStopwatch.Stop();
InReadLock(() =>
{
AddToGauge("statsd.flush_duration", (int)Math.Round(flushStopwatch.Elapsed.TotalMilliseconds));
});
}
public static void ProcessMetrics(Metrics metrics, double flushInterval, long ts)
{
var sw = Stopwatch.StartNew();
var counter_rates = (Dictionary<string, long>)metrics.counter_rates;
var timer_data = (Dictionary<string, Dictionary<string, long>>)metrics.timer_data;
var statsd_metrics = (Dictionary<string, long>)metrics.statsd_metrics;
var counters = (Dictionary<string, long>)metrics.counters;
var timers = (Dictionary<string, List<long>>)metrics.timers;
var timer_counters = (Dictionary<string, long>)metrics.timer_counters;
var pctThreshold = (int[])metrics.pctThreshold;
//var histogram = metrics.histogram;
foreach (var key in counters.Keys)
{
var value = (double)counters[key];
// calculate "per second" rate
counter_rates[key] = (long)Math.Round(value / (flushInterval / 1000d));
}
foreach (var key in timers.Keys)
{
var current_timer_data = new Dictionary<string, long>();
timer_data[key] = current_timer_data;
if (timers[key].Count > 0)
{
var values = timers[key];
values.Sort();
var count = values.Count;
var min = values[0];
var max = values[count - 1];
var cumulativeValues = new List<long>() { min };
var cumulSumSquaresValues = new List<long>() { min * min };
for (var i = 1; i < count; i++)
{
cumulativeValues.Add(values[i] + cumulativeValues[i - 1]);
cumulSumSquaresValues.Add((values[i] * values[i]) + cumulSumSquaresValues[i - 1]);
}
var sum = min;
var sumSquares = min * min;
var mean = min;
var thresholdBoundary = max;
foreach (var pct in pctThreshold)
{
var numInThreshold = count;
if (count > 1)
{
numInThreshold = (int)Math.Round(((double)Math.Abs(pct) / 100d) * (double)count);
if (numInThreshold == 0)
{
continue;
}
if (pct > 0)
{
thresholdBoundary = values[numInThreshold - 1];
sum = cumulativeValues[numInThreshold - 1];
sumSquares = cumulSumSquaresValues[numInThreshold - 1];
}
else
{
thresholdBoundary = values[count - numInThreshold];
sum = cumulativeValues[count - 1] - cumulativeValues[count - numInThreshold - 1];
sumSquares = cumulSumSquaresValues[count - 1] -
cumulSumSquaresValues[count - numInThreshold - 1];
}
mean = (long)Math.Round((double)sum / (double)numInThreshold);
}
var clean_pct = "" + pct;
clean_pct = clean_pct.Replace(".", "_").Replace("-", "top");
current_timer_data["count_" + clean_pct] = numInThreshold;
current_timer_data["mean_" + clean_pct] = mean;
current_timer_data[(pct > 0 ? "upper_" : "lower_") + clean_pct] = thresholdBoundary;
current_timer_data["sum_" + clean_pct] = sum;
current_timer_data["sum_squares_" + clean_pct] = sumSquares;
}
sum = cumulativeValues[count - 1];
sumSquares = cumulSumSquaresValues[count - 1];
mean = (long)Math.Round((double)sum / (double)count);
long sumOfDiffs = 0;
for (var i = 0; i < count; i++)
{
sumOfDiffs += (values[i] - mean) * (values[i] - mean);
}
var mid = (int)Math.Floor((double)count / 2d);
var median = (count % 2) > 0 ? values[mid] : (values[mid - 1] + values[mid]) / 2;
var stddev = Math.Sqrt(Math.Round((double)sumOfDiffs / (double)count));
current_timer_data["std"] = (long)stddev;
current_timer_data["upper"] = max;
current_timer_data["lower"] = min;
current_timer_data["count"] = timer_counters[key];
current_timer_data["count_ps"] = (long)Math.Round((double)timer_counters[key] / (flushInterval / 1000d));
current_timer_data["sum"] = sum;
current_timer_data["sum_squares"] = sumSquares;
current_timer_data["mean"] = mean;
current_timer_data["median"] = median;
}
else
{
current_timer_data["count"] = 0;
current_timer_data["count_ps"] = 0;
}
}
sw.Stop();
statsd_metrics["processing_time"] = (int)Math.Round(sw.Elapsed.TotalSeconds);
}
public static void Flush(long time_stamp, Metrics metrics)
{
if (!FlushToDatabase) { return; }
if (!metrics.sets.ContainsKey("haproxy.logs.host")) { return; }
if (sw == null) { sw = new Stopwatch(); }
sw.Restart();
using (var c = GetOpenSqlConnection())
{
var applications = metrics.sets.GetValueOrDefault("haproxy.logs.applications", EmptySet);
foreach (var host in metrics.sets["haproxy.logs.host"].OrderBy(x => x))
{
var hostClean = host.Replace('.', '_');
foreach (var routeName in metrics.sets["haproxy.logs.routes"].OrderBy(x => x))
{
var applicationId = routeName.IndexOf(".") > 0 && applications.Contains(routeName.Substring(0, routeName.IndexOf("."))) ? routeName.Substring(0, routeName.IndexOf(".")) : "";
var routeNameClean = routeName.Replace('.', '_');
if (!metrics.counters.ContainsKey("haproxy.logs." + hostClean + ".route." + routeNameClean + ".hits"))
{
continue; // invalid route/host combo
}
var row = new
{
Timestamp = time_stamp,
Host = host,
ApplicationId = applicationId,
RouteName = routeName,
Hits = metrics.counters["haproxy.logs." + hostClean + ".route." + routeNameClean + ".hits"],
BytesRead = metrics.counters["haproxy.logs." + hostClean + ".route." + routeNameClean + ".bytes_read"],
Tr_median = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["median"],
Tr_mean = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["mean"],
Tr_sum = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["sum"],
Tr_count_90 = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["sum_90"] > 0 ?
metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["count_90"] : 0,
Tr_mean_90 = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["mean_90"],
Tr_sum_90 = metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["sum_90"],
AspNetDurationMs_median = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["median"],
AspNetDurationMs_mean = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["mean"],
AspNetDurationMs_sum = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["sum"],
AspNetDurationMs_count_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["sum_90"] > 0 ?
metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["count_90"] : 0,
AspNetDurationMs_mean_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["mean_90"],
AspNetDurationMs_sum_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["sum_90"],
SqlCount_median = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["median"],
SqlCount_mean = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["mean"],
SqlCount_sum = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["sum"],
SqlCount_count_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["sum_90"] > 0 ?
metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["count_90"] : 0,
SqlCount_mean_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["mean_90"],
SqlCount_sum_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["sum_90"],
SqlDurationMs_median = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["median"],
SqlDurationMs_mean = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["mean"],
SqlDurationMs_sum = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["sum"],
SqlDurationMs_count_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["sum_90"] > 0 ?
metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["count_90"] : 0,
SqlDurationMs_mean_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["mean_90"],
SqlDurationMs_sum_90 = metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["sum_90"],
};
InsertTrafficSummaryRow(row, c);
}
}
if (metrics.gauges.ContainsKey("haproxy.logs.actconn"))
{
var actconn = metrics.gauges["haproxy.logs.actconn"];
foreach (var frontend_name in metrics.sets["haproxy.logs.fe"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".feconn")) { continue; }
var feconn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".feconn"];
foreach (var backend_name in metrics.sets["haproxy.logs.be"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".beconn")) { continue; }
var beconn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".beconn"];
foreach (var server_name in metrics.sets["haproxy.logs.srv"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".srv." + server_name + ".srv_conn")) { continue; }
var srv_conn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".srv." + server_name + ".srv_conn"];
var row = new
{
Timestamp = time_stamp,
Frontend = frontend_name,
Backend = backend_name,
Server = server_name,
actconn = actconn,
feconn = feconn,
beconn = beconn,
srv_conn = srv_conn,
};
InsertLoadBalancerStatisticsRow(row, c);
}
}
}
}
long packets_received = 0;
long metrics_received = 0;
long databasewriter_duration = 0;
long flush_duration = 0;
long timestamp_lag_namespace = 0;
long queue_length = metrics.gauges["haproxy.logs.queue"];
if (metrics.counters.ContainsKey("haproxy.logs.packets_received"))
{
packets_received = metrics.counters["haproxy.logs.packets_received"];
}
if (metrics.counters.ContainsKey("statsd.metrics_received"))
{
metrics_received =metrics.counters["statsd.metrics_received"];
}
if (metrics.gauges.ContainsKey("statsd.haproxy.databasewriter_duration"))
{
databasewriter_duration = metrics.gauges["statsd.haproxy.databasewriter_duration"];
}
if (metrics.gauges.ContainsKey("statsd.flush_duration"))
{
flush_duration = metrics.gauges["statsd.flush_duration"];
}
if (metrics.gauges.ContainsKey("statsd.timestamp_lag_namespace"))
{
timestamp_lag_namespace = metrics.gauges["statsd.timestamp_lag_namespace"];
}
var stats_row = new
{
Timestamp = time_stamp,
QueueLength = queue_length,
PacketsReceived = packets_received,
MetricsReceived = metrics_received,
DatabaseWriterDurationMS = databasewriter_duration,
FlushDurationMS = flush_duration,
TimestampLagNamespace = timestamp_lag_namespace,
};
InsertHAProxyTrafficLoggerStatisticsRow(stats_row, c);
}
sw.Stop();
TrafficLog.collector.InReadLock(() =>
{
TrafficLog.collector.SetGauge("statsd.haproxy.databasewriter_duration", (int)Math.Round(sw.Elapsed.TotalMilliseconds));
});
}
public static void Flush(long time_stamp, Metrics metrics)
{
if (!FlushToConsole) { return; }
Console.Clear();
Console.WriteLine("statsd haproxy.logs: " + ExtensionMethods.UnixTimeStampToDateTime(time_stamp).ToString("O"));
Console.WriteLine();
if (!metrics.sets.ContainsKey("haproxy.logs.host")) { return; }
Console.WriteLine("{0,10} {1,5} {2,15} {3,7} {4,7:F0} {5,4} {6,5} {7,5} {8,5}"
, "host"
, "appid"
, "route"
, "hits"
, "kb/sum"
, "tr"
, "asp_d"
, "sql_c"
, "sql_d"
);
var applications = metrics.sets.GetValueOrDefault("haproxy.logs.applications", EmptySet);
foreach (var host in metrics.sets["haproxy.logs.host"].OrderBy(x => x))
{
var hostClean = host.Replace('.', '_');
foreach (var routeName in metrics.sets["haproxy.logs.routes"].OrderBy(x => x))
{
var applicationId = routeName.IndexOf(".") > 0 && applications.Contains(routeName.Substring(0, routeName.IndexOf("."))) ? routeName.Substring(0, routeName.IndexOf(".")) : "";
var routeNameClean = routeName.Replace('.', '_');
if (!metrics.counters.ContainsKey("haproxy.logs." + hostClean + ".route." + routeNameClean + ".hits"))
{
continue; // invalid route/host combo
}
Console.WriteLine("{0,10} {1,5} {2,15} {3,7} {4,7:F0} {5,4} {6,5} {7,5} {8,5}"
, TrimAndPad(host, 10)
, TrimAndPad(applicationId, 5)
, TrimAndPad(routeName.Replace(applicationId + ".", ""), 15)
, metrics.counters["haproxy.logs." + hostClean + ".route." + routeNameClean + ".hits"]
, (double)metrics.counters["haproxy.logs." + hostClean + ".route." + routeNameClean + ".bytes_read"] / 1024d
, metrics.timer_data["haproxy.logs." + hostClean + ".route." + routeNameClean + ".tr"]["mean"]
, metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".AspNetDurationMs", EmptyTimerData)["mean"]
, metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlCount", EmptyTimerData)["mean"]
, metrics.timer_data.GetValueOrDefault("haproxy.logs." + hostClean + ".route." + routeNameClean + ".SqlDurationMs", EmptyTimerData)["mean"]
);
}
}
Console.WriteLine();
Console.WriteLine("{0,10} {1,10} {2,10} {3,10} {4,10} {5,10} {6,10}"
, "actconn"
, "fe_name"
, "feconn"
, "be_name"
, "beconn"
, "srv_name"
, "srv_conn"
);
if (metrics.gauges.ContainsKey("haproxy.logs.actconn"))
{
var actconn = metrics.gauges["haproxy.logs.actconn"];
foreach (var frontend_name in metrics.sets["haproxy.logs.fe"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".feconn")) { continue; }
var feconn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".feconn"];
foreach (var backend_name in metrics.sets["haproxy.logs.be"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".beconn")) { continue; }
var beconn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".beconn"];
foreach (var server_name in metrics.sets["haproxy.logs.srv"].OrderBy(x => x))
{
if (!metrics.gauges.ContainsKey("haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".srv." + server_name + ".srv_conn")) { continue; }
var srv_conn = metrics.gauges["haproxy.logs.fe." + frontend_name + ".be." + backend_name + ".srv." + server_name + ".srv_conn"];
Console.WriteLine("{0,10} {1,10} {2,10} {3,10} {4,10} {5,10} {6,10}"
, actconn
, TrimAndPad(frontend_name, 10)
, feconn
, TrimAndPad(backend_name, 10)
, beconn
, TrimAndPad(server_name, 10)
, srv_conn
);
}
}
}
}
Console.WriteLine();
Console.WriteLine("haproxy.logs.queue=" + metrics.gauges["haproxy.logs.queue"]);
if (metrics.counters.ContainsKey("haproxy.logs.packets_received"))
{
Console.WriteLine("haproxy.logs.packets_received=" + metrics.counters["haproxy.logs.packets_received"]);
}
if (metrics.counters.ContainsKey("statsd.metrics_received"))
{
Console.WriteLine("statsd.metrics_received=" + metrics.counters["statsd.metrics_received"]);
}
if (metrics.gauges.ContainsKey("statsd.haproxy.databasewriter_duration"))
{
Console.WriteLine("statsd.haproxy.databasewriter_duration=" + metrics.gauges["statsd.haproxy.databasewriter_duration"]);
}
if (metrics.gauges.ContainsKey("statsd.flush_duration"))
{
Console.WriteLine("statsd.flush_duration=" + metrics.gauges["statsd.flush_duration"]);
}
if (metrics.gauges.ContainsKey("statsd.timestamp_lag_namespace"))
{
Console.WriteLine("statsd.timestamp_lag_namespace=" + metrics.gauges["statsd.timestamp_lag_namespace"]);
}
}
public static void ProcessMetrics(Metrics metrics, double flushInterval, long ts)
{
var sw = Stopwatch.StartNew();
var counter_rates = (Dictionary <string, long>)metrics.counter_rates;
var timer_data = (Dictionary <string, Dictionary <string, long> >)metrics.timer_data;
var statsd_metrics = (Dictionary <string, long>)metrics.statsd_metrics;
var counters = (Dictionary <string, long>)metrics.counters;
var timers = (Dictionary <string, List <long> >)metrics.timers;
var timer_counters = (Dictionary <string, long>)metrics.timer_counters;
var pctThreshold = (int[])metrics.pctThreshold;
//var histogram = metrics.histogram;
foreach (var key in counters.Keys)
{
var value = (double)counters[key];
// calculate "per second" rate
counter_rates[key] = (long)Math.Round(value / (flushInterval / 1000d));
}
foreach (var key in timers.Keys)
{
var current_timer_data = new Dictionary <string, long>();
timer_data[key] = current_timer_data;
if (timers[key].Count > 0)
{
var values = timers[key];
values.Sort();
var count = values.Count;
var min = values[0];
var max = values[count - 1];
var cumulativeValues = new List <long>()
{
min
};
var cumulSumSquaresValues = new List <long>()
{
min *min
};
for (var i = 1; i < count; i++)
{
cumulativeValues.Add(values[i] + cumulativeValues[i - 1]);
cumulSumSquaresValues.Add((values[i] * values[i]) + cumulSumSquaresValues[i - 1]);
}
var sum = min;
var sumSquares = min * min;
var mean = min;
var thresholdBoundary = max;
foreach (var pct in pctThreshold)
{
var numInThreshold = count;
if (count > 1)
{
numInThreshold = (int)Math.Round(((double)Math.Abs(pct) / 100d) * (double)count);
if (numInThreshold == 0)
{
continue;
}
if (pct > 0)
{
thresholdBoundary = values[numInThreshold - 1];
sum = cumulativeValues[numInThreshold - 1];
sumSquares = cumulSumSquaresValues[numInThreshold - 1];
}
else
{
thresholdBoundary = values[count - numInThreshold];
sum = cumulativeValues[count - 1] - cumulativeValues[count - numInThreshold - 1];
sumSquares = cumulSumSquaresValues[count - 1] -
cumulSumSquaresValues[count - numInThreshold - 1];
}
mean = (long)Math.Round((double)sum / (double)numInThreshold);
}
var clean_pct = "" + pct;
clean_pct = clean_pct.Replace(".", "_").Replace("-", "top");
current_timer_data["count_" + clean_pct] = numInThreshold;
current_timer_data["mean_" + clean_pct] = mean;
current_timer_data[(pct > 0 ? "upper_" : "lower_") + clean_pct] = thresholdBoundary;
current_timer_data["sum_" + clean_pct] = sum;
current_timer_data["sum_squares_" + clean_pct] = sumSquares;
}
sum = cumulativeValues[count - 1];
sumSquares = cumulSumSquaresValues[count - 1];
mean = (long)Math.Round((double)sum / (double)count);
long sumOfDiffs = 0;
for (var i = 0; i < count; i++)
{
sumOfDiffs += (values[i] - mean) * (values[i] - mean);
}
var mid = (int)Math.Floor((double)count / 2d);
var median = (count % 2) > 0 ? values[mid] : (values[mid - 1] + values[mid]) / 2;
var stddev = Math.Sqrt(Math.Round((double)sumOfDiffs / (double)count));
current_timer_data["std"] = (long)stddev;
current_timer_data["upper"] = max;
current_timer_data["lower"] = min;
current_timer_data["count"] = timer_counters[key];
current_timer_data["count_ps"] = (long)Math.Round((double)timer_counters[key] / (flushInterval / 1000d));
current_timer_data["sum"] = sum;
current_timer_data["sum_squares"] = sumSquares;
current_timer_data["mean"] = mean;
current_timer_data["median"] = median;
}
else
{
current_timer_data["count"] = 0;
current_timer_data["count_ps"] = 0;
}
}
sw.Stop();
statsd_metrics["processing_time"] = (int)Math.Round(sw.Elapsed.TotalSeconds);
}
public void FlushMetrics()
{
flushStopwatch.Restart();
if (BeforeFlush != null)
{
BeforeFlush();
}
var time_stamp = (long)Math.Round(DateTimeToUnixTimestamp(DateTime.UtcNow)); // seconds
if (old_timestamp > 0)
{
gauges["statsd.timestamp_lag_namespace"] = (time_stamp - old_timestamp - (FlushInterval / 1000));
}
old_timestamp = time_stamp;
Metrics metrics = null;
flushMetricsReaderWriterLock.EnterWriteLock();
try
{
metrics = new Metrics
{
counters = new Dictionary <string, long>(counters),
gauges = new Dictionary <string, long>(gauges),
timers = new Dictionary <string, List <long> >(timers),
timer_counters = new Dictionary <string, long>(timer_counters),
sets = new Dictionary <string, HashSet <string> >(sets),
counter_rates = new Dictionary <string, long>(),
timer_data = new Dictionary <string, Dictionary <string, long> >(),
pctThreshold = PctThreshold,
statsd_metrics = new Dictionary <string, long>(),
};
ClearMetrics();
}
finally
{
flushMetricsReaderWriterLock.ExitWriteLock();
}
ProcessMetrics(metrics, FlushInterval, time_stamp);
if (FlushToConsole)
{
Console.Clear();
Console.WriteLine("Flush=" + time_stamp);
foreach (var item in metrics.counters)
{
Console.WriteLine("stats.counters.{0}.count = {1}", item.Key, item.Value);
Console.WriteLine("stats.counters.{0}.rate = {1}", item.Key, metrics.counter_rates[item.Key]);
}
foreach (var item in metrics.timers)
{
foreach (var data in metrics.timer_data[item.Key])
{
Console.WriteLine("stats.timers.{0}.{1} = {2}", item.Key, data.Key, data.Value);
}
}
foreach (var item in metrics.gauges)
{
Console.WriteLine("stats.gauges.{0} = {1}", item.Key, item.Value);
}
foreach (var item in metrics.sets)
{
Console.WriteLine("stats.sets.{0}.count = {1}", item.Key, item.Value.Count);
}
Console.WriteLine("Flush End=" + time_stamp);
}
if (OnFlush != null)
{
OnFlush(time_stamp, metrics);
}
flushStopwatch.Stop();
InReadLock(() =>
{
AddToGauge("statsd.flush_duration", (int)Math.Round(flushStopwatch.Elapsed.TotalMilliseconds));
});
}