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StatsManager: updated implementation to gracefully handle errors caused by corrupt stats files.

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This commit is contained in:
Shreyas Zare
2023-05-27 12:35:56 +05:30
parent 560567a79e
commit 2e376513a8
1 changed files with 33 additions and 25 deletions
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58
DnsServerCore/Dns/StatsManager.cs
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@@ -83,8 +83,15 @@ namespace DnsServerCore.Dns
//load stats
LoadLastHourStats();
//do first maintenance
DoMaintenance();
try
{
//do first maintenance
DoMaintenance();
}
catch (Exception ex)
{
_dnsServer.LogManager?.Write(ex);
}
//start periodic maintenance timer
_maintenanceTimer = new Timer(delegate (object state)
@@ -95,9 +102,7 @@ namespace DnsServerCore.Dns
}
catch (Exception ex)
{
LogManager log = dnsServer.LogManager;
if (log is not null)
log.Write(ex);
_dnsServer.LogManager?.Write(ex);
}
}, null, MAINTENANCE_TIMER_INITIAL_INTERVAL, MAINTENANCE_TIMER_PERIODIC_INTERVAL);
@@ -145,9 +150,7 @@ namespace DnsServerCore.Dns
}
catch (Exception ex)
{
LogManager log = dnsServer.LogManager;
if (log is not null)
log.Write(ex);
_dnsServer.LogManager?.Write(ex);
}
});
@@ -223,9 +226,7 @@ namespace DnsServerCore.Dns
}
catch (Exception ex)
{
LogManager log = dnsServer.LogManager;
if (log is not null)
log.Write(ex);
_dnsServer.LogManager?.Write(ex);
}
});
@@ -270,24 +271,31 @@ namespace DnsServerCore.Dns
private void LoadLastHourStats()
{
DateTime currentDateTime = DateTime.UtcNow;
DateTime lastHourDateTime = currentDateTime.AddMinutes(-60);
HourlyStats lastHourlyStats = null;
DateTime lastHourlyStatsDateTime = new DateTime();
for (int i = 0; i < 60; i++)
try
{
DateTime lastDateTime = lastHourDateTime.AddMinutes(i);
DateTime currentDateTime = DateTime.UtcNow;
DateTime lastHourDateTime = currentDateTime.AddMinutes(-60);
if ((lastHourlyStats == null) || (lastDateTime.Hour != lastHourlyStatsDateTime.Hour))
HourlyStats lastHourlyStats = null;
DateTime lastHourlyStatsDateTime = new DateTime();
for (int i = 0; i < 60; i++)
{
lastHourlyStats = LoadHourlyStats(lastDateTime);
lastHourlyStatsDateTime = lastDateTime;
}
DateTime lastDateTime = lastHourDateTime.AddMinutes(i);
_lastHourStatCounters[lastDateTime.Minute] = lastHourlyStats.MinuteStats[lastDateTime.Minute];
_lastHourStatCountersCopy[lastDateTime.Minute] = _lastHourStatCounters[lastDateTime.Minute];
if ((lastHourlyStats == null) || (lastDateTime.Hour != lastHourlyStatsDateTime.Hour))
{
lastHourlyStats = LoadHourlyStats(lastDateTime);
lastHourlyStatsDateTime = lastDateTime;
}
_lastHourStatCounters[lastDateTime.Minute] = lastHourlyStats.MinuteStats[lastDateTime.Minute];
_lastHourStatCountersCopy[lastDateTime.Minute] = _lastHourStatCounters[lastDateTime.Minute];
}
}
catch (Exception ex)
{
_dnsServer.LogManager?.Write(ex);
}
}