// Token: 0x0600131A RID: 4890 RVA: 0x0004D088 File Offset: 0x0004B288
public bool DatabaseHasSufficientAvailability()
{
if (this.LastReading != null)
{
if (!(ExDateTime.UtcNow - this.LastReadingTime >= this.MaxProbeFreq))
{
goto IL_C6;
}
}
try
{
IMonitoringADConfig configIgnoringStaleness = this.ADConfigProvider.GetConfigIgnoringStaleness(true);
DatabaseAvailabilityValidator databaseAvailabilityValidator = new DatabaseAvailabilityValidator(this.Database, this.MinAvailableCopies, this.CopyStatusLookup, configIgnoringStaleness, null, true);
this.LastReading = databaseAvailabilityValidator.Run();
this.LastReadingTime = ExDateTime.Now;
}
catch (MonitoringADServiceShuttingDownException arg)
{
AvailabilitySensor.Tracer.TraceError <MonitoringADServiceShuttingDownException>((long)this.GetHashCode(), "AvailabilitySensor: Got service shutting down exception when retrieving AD config: {0}", arg);
}
catch (MonitoringADConfigException ex)
{
this.FailedToRead = true;
AvailabilitySensor.Tracer.TraceError <MonitoringADConfigException>((long)this.GetHashCode(), "AvailabilitySensor: Got exception when retrieving AD config: {0}", ex);
ReplayCrimsonEvents.AvailabilitySensorError.LogPeriodic <string, MonitoringADConfigException>(this.GetHashCode(), DiagCore.DefaultEventSuppressionInterval, ex.Message, ex);
}
IL_C6:
return(this.LastReading != null && this.LastReading.HealthyCopiesCount >= this.MinAvailableCopies);
}
private void ProcessDatabaseInternal(IADDatabase db, IMonitoringADConfig adConfig)
{
if (db.ReplicationType != ReplicationType.Remote)
{
ReplayLagManager.Tracer.TraceDebug <string>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Database '{0}' is not a replicated database. Skipping this database.", db.Name);
return;
}
IADDatabaseCopy databaseCopy = this.GetDatabaseCopy(db, AmServerName.LocalComputerName);
EnhancedTimeSpan replayLagTime = databaseCopy.ReplayLagTime;
if (replayLagTime == EnhancedTimeSpan.Zero)
{
ReplayLagManager.Tracer.TraceDebug <string>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Local copy of Database '{0}' is not a lag copy. Skipping this database.", db.Name);
return;
}
ReplayLagManager.Tracer.TraceDebug <string, EnhancedTimeSpan>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Local copy of Database '{0}' is a lag copy. Configured lag: {1}. Processing this database.", db.Name, replayLagTime);
DatabaseAvailabilityValidator databaseAvailabilityValidator = new DatabaseAvailabilityValidator(db, ReplayLagManager.NUM_AVAILABLE_NONLAG_COPIES_MIN, this.m_statusLookup, adConfig, null, true);
IHealthValidationResult healthValidationResult = databaseAvailabilityValidator.Run();
int num = ReplayLagManager.NUM_AVAILABLE_NONLAG_COPIES_MIN;
if (healthValidationResult.IsTargetCopyHealthy)
{
num++;
ReplayLagManager.Tracer.TraceDebug <string, int>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Local lag-copy of Database '{0}' is available. Increasing the minimum available copy count to: {1}", db.Name, num);
}
CopyStatusClientCachedEntry targetCopyStatus = healthValidationResult.TargetCopyStatus;
if (healthValidationResult.HealthyCopiesCount >= num)
{
ReplayLagManager.Tracer.TraceDebug <string>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Local copy of Database '{0}' has met availability critera. Replay Lag will be re-instated as necessary.", db.Name);
if (this.m_errorSuppression.ReportSuccess(db.Guid, ReplayLagManager.EnableLagSuppressionWindow))
{
this.EnableReplayLag(db, targetCopyStatus);
return;
}
ReplayLagManager.Tracer.TraceDebug <string, double>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: '{0}': Skipping EnableReplayLag() due to transient suppression of {1} secs", db.Name, ReplayLagManager.EnableLagSuppressionWindow.TotalSeconds);
return;
}
else
{
ReplayLagManager.Tracer.TraceDebug <string>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: Local copy of Database '{0}' has *NOT* met availability critera. Replay Lag will be played down as necessary.", db.Name);
string errorMessageWithoutFullStatus = healthValidationResult.ErrorMessageWithoutFullStatus;
if (this.m_errorSuppression.ReportFailure(db.Guid, ReplayLagManager.DisableLagSuppressionWindow))
{
this.DisableReplayLag(db, targetCopyStatus, errorMessageWithoutFullStatus);
return;
}
ReplayLagManager.Tracer.TraceDebug <string, double>((long)this.GetHashCode(), "ReplayLagManager.ProcessDatabase: '{0}': Skipping DisableReplayLag() due to transient suppression of {1} secs", db.Name, ReplayLagManager.DisableLagSuppressionWindow.TotalSeconds);
ReplayCrimsonEvents.RLMDisableReplayLagRequestSuppressed.LogPeriodic <string, string, Guid, string, TimeSpan>(Environment.MachineName, DateTimeHelper.FourHours, db.Name, Environment.MachineName, db.Guid, errorMessageWithoutFullStatus, ReplayLagManager.DisableLagSuppressionWindow);
return;
}
}
private void RaiseDatabaseAvailabilityAlertIfNecessary(IADDatabase db, IMonitoringADConfig adConfig)
{
DatabaseHealthMonitor.Tracer.TraceDebug <string>((long)this.GetHashCode(), "DatabaseHealthMonitor.RaiseDatabaseAvailabilityAlertIfNecessary: DB '{0}': Starting DB-level availability checks.", db.Name);
DatabaseAvailabilityValidator databaseAvailabilityValidator = new DatabaseAvailabilityValidator(db, DatabaseHealthMonitor.NUM_HEALTHY_COPIES_MIN, this.m_statusLookup, adConfig, this.m_propertyUpdateTracker, false);
IHealthValidationResult result = databaseAvailabilityValidator.Run();
this.m_dbAlerts.OneAvailableCopy.RaiseAppropriateAlertIfNecessary(result);
if (adConfig.Dag.DatacenterActivationMode == DatacenterActivationModeOption.DagOnly)
{
this.m_dbAlerts.OneAvailableCopySite.RaiseAppropriateAlertIfNecessary(result);
return;
}
DatabaseHealthMonitor.Tracer.TraceDebug <string, DatacenterActivationModeOption>((long)this.GetHashCode(), "DatabaseHealthMonitor.RaiseDatabaseAvailabilityAlertIfNecessary: DB '{0}': Skipping raising site alerts because DatacenterActivationMode is '{1}'.", db.Name, adConfig.Dag.DatacenterActivationMode);
}
