private static void DiskLogStatsTimer_ElapsedHandler(object sender, ElapsedEventArgs e)
{
try
{
DiskLogStatsTimer.Stop();
List <Stat> stats = Stats.ToList();
double minMessagesWritten = stats.Where(x => !x.IsReader).GroupBy(x => x.Second).Min(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double avgMessagesWritten = stats.Where(x => !x.IsReader).GroupBy(x => x.Second).Average(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double maxMessagesWritten = stats.Where(x => !x.IsReader).GroupBy(x => x.Second).Max(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double minMessagesRead = stats.Where(x => x.IsReader).GroupBy(x => x.Second).Min(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double avgMessagesRead = stats.Where(x => x.IsReader).GroupBy(x => x.Second).Average(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double maxMessagesRead = stats.Where(x => x.IsReader).GroupBy(x => x.Second).Max(x => x.Sum(y => (int?)y.ProcessedMessages)) ?? 0;
double minCheckpointLatency = stats.Where(x => x.IsReader).Min(x => (int?)x.CheckpointDuration) ?? 0;
double avgCheckpointLatency = stats.Where(x => x.IsReader).Average(x => (int?)x.CheckpointDuration) ?? 0;
double maxCheckpointLatency = stats.Where(x => x.IsReader).Max(x => (int?)x.CheckpointDuration) ?? 0;
GlobalStats.MaxMessagesWrittenPerSecond = Math.Max(GlobalStats.MaxMessagesWrittenPerSecond, maxMessagesWritten);
GlobalStats.MaxMessagesReadPerSecond = Math.Max(GlobalStats.MaxMessagesReadPerSecond, maxMessagesRead);
GlobalStats.MaxCheckpointLatency = Math.Max(GlobalStats.MaxCheckpointLatency, maxCheckpointLatency);
DiskStatsLog.Info($"Data s# {stats.Count}, ucs# {UserChangeStats.Count()}, l# {Log.Count()} | " +
$"Global m- {GlobalStats.LifetimeMessagesWritten}, m- {GlobalStats.LifetimeMessagesRead}, m/s+ {GlobalStats.MaxMessagesWrittenPerSecond}, m/s- {GlobalStats.MaxMessagesReadPerSecond}, chck. {GlobalStats.MaxCheckpointLatency} | " +
$"m/s+ min {minMessagesWritten}, avg {avgMessagesWritten}, max {maxMessagesWritten} | " +
$"m/s- min {minMessagesRead}, avg {avgMessagesRead}, max {maxMessagesRead} | " +
$"chck. min {minCheckpointLatency}, avg {avgCheckpointLatency}, max {maxCheckpointLatency}");
}
catch (Exception ex)
{
Error(nameof(Data), "Could not log stats to file.", ex);
}
finally
{
DiskLogStatsTimer.Start();
}
}
public static void RecordSetting(string name, int value)
{
UserChangeStats.Enqueue(new GenericStat {
Name = name, Value = value,
});
}
