private void SetCommittedLoads(LoadContainer root)
{
LoadMetricStorage left = new LoadMetricStorage();
if (root.ContainerType == ContainerType.Database)
{
foreach (LoadEntity loadEntity in root.Children)
{
LoadContainer loadContainer = (LoadContainer)loadEntity;
left += loadContainer.ConsumedLoad;
}
using (List <LoadEntity> .Enumerator enumerator2 = root.Children.GetEnumerator())
{
while (enumerator2.MoveNext())
{
LoadEntity loadEntity2 = enumerator2.Current;
LoadContainer loadContainer2 = (LoadContainer)loadEntity2;
loadContainer2.CommittedLoad = left - loadContainer2.ConsumedLoad;
}
return;
}
}
foreach (LoadEntity loadEntity3 in root.Children)
{
LoadContainer committedLoads = (LoadContainer)loadEntity3;
this.SetCommittedLoads(committedLoads);
}
}
public BandMailboxRebalanceData ToSerializationFormat(bool convertBandToBandData)
{
LoadMetricStorage loadMetricStorage = new LoadMetricStorage(this.RebalanceInformation);
loadMetricStorage.ConvertToSerializationMetrics(convertBandToBandData);
return(new BandMailboxRebalanceData((LoadContainer)this.SourceDatabase.ToSerializationFormat(convertBandToBandData), (LoadContainer)this.TargetDatabase.ToSerializationFormat(convertBandToBandData), loadMetricStorage)
{
RebalanceBatchName = this.RebalanceBatchName,
ConstraintSetIdentity = this.ConstraintSetIdentity
});
}
public BandMailboxRebalanceData(LoadContainer sourceDatabase, LoadContainer targetDatabase, LoadMetricStorage rebalanceInformation)
{
this.SourceDatabase = sourceDatabase.GetShallowCopy();
this.TargetDatabase = targetDatabase.GetShallowCopy();
this.RebalanceInformation = rebalanceInformation;
}
public MailboxProvisioningData(ByteQuantifiedSize totalDataSize, IMailboxProvisioningConstraints mailboxProvisioningConstraintses = null, LoadMetricStorage consumedLoad = null)
{
this.TotalDataSize = totalDataSize;
this.MailboxProvisioningConstraints = mailboxProvisioningConstraintses;
if (consumedLoad == null)
{
this.ConsumedLoad = new LoadMetricStorage();
this.ConsumedLoad[PhysicalSize.Instance] = PhysicalSize.Instance.GetUnitsForSize(totalDataSize);
return;
}
this.ConsumedLoad = consumedLoad;
}
private void BalanceBand(Band band, double totalDatabaseWeight, BandData[] bandData)
{
this.logger.Log(MigrationEventType.Information, "Balancing band '{0}' with '{1}' data entries.", new object[]
{
band,
bandData.Count <BandData>()
});
double moveUnitsPerWeight = (double)bandData.Sum((BandData data) => data.TotalWeight) / totalDatabaseWeight;
double num = (band.Profile == Band.BandProfile.SizeBased) ? band.MailboxSizeWeightFactor : 0.0;
double deviation = (double)this.settings.WeightDeviationPercent / 100.0;
ByteQuantifiedSize byteQuantifiedSize = ByteQuantifiedSize.FromGB((ulong)this.settings.MaximumAmountOfDataPerRoundGb);
this.logger.Log(MigrationEventType.Verbose, "Moving with a deviation of '{0}', a minimum delta of '{1}' and a maximum of '{2}' per database.", new object[]
{
deviation,
num,
byteQuantifiedSize
});
List <BandData> list = (from data in bandData
orderby this.GetBandDelta(moveUnitsPerWeight, deviation, data) descending
select data).ToList <BandData>();
foreach (BandData bandData2 in list)
{
double num2 = this.GetBandDelta(moveUnitsPerWeight, deviation, bandData2);
this.logger.Log(MigrationEventType.Verbose, "Attempting to balance band {0} for database {1}, current delta is {2}.", new object[]
{
band,
bandData2.Database,
num2
});
LoadMetric instance = PhysicalSize.Instance;
if (num2 <= num)
{
this.logger.Log(MigrationEventType.Information, "Not balancing band {0} for database {1} because delta {2} is either less than the minimum of {3} or database has no more available space ({4}). We're done.", new object[]
{
band,
bandData2.Database,
num2,
num,
bandData2.Database.AvailableCapacity.GetSizeMetric(instance)
});
break;
}
foreach (BandData bandData3 in from data in bandData
orderby data.TotalWeight
select data)
{
if (!bandData3.Database.CanAcceptBalancingLoad)
{
this.logger.Log(MigrationEventType.Verbose, "Database {0} can not be used as target because it can't take LB load.", new object[]
{
bandData3.Database
});
}
else
{
double num3 = this.GetBandDelta(moveUnitsPerWeight, 0.0 - deviation, bandData3);
this.logger.Log(MigrationEventType.Verbose, "Trying to place weight into {0} (current delta: {1}).", new object[]
{
bandData3.Database,
num3
});
ByteQuantifiedSize sizeMetric = bandData3.Database.AvailableCapacity.GetSizeMetric(instance);
if (0.0 - num3 > sizeMetric.ToMB())
{
this.logger.Log(MigrationEventType.Verbose, "Target delta of {0} is larger than the {1} available space in the database, adjusting.", new object[]
{
num3,
sizeMetric
});
num3 = 0.0 - sizeMetric.ToMB();
this.logger.Log(MigrationEventType.Verbose, "New target delta is {0}.", new object[]
{
num3
});
}
if (num3 >= 0.0)
{
this.logger.Log(MigrationEventType.Verbose, "Target database is above the threshold, skipping as a target.", new object[0]);
}
else
{
ByteQuantifiedSize sizeMetric2 = bandData3.Database.CommittedLoad.GetSizeMetric(instance);
ByteQuantifiedSize byteQuantifiedSize2;
if (sizeMetric2 > byteQuantifiedSize)
{
byteQuantifiedSize2 = ByteQuantifiedSize.Zero;
}
else
{
byteQuantifiedSize2 = byteQuantifiedSize - sizeMetric2;
}
int num4 = (int)Math.Floor(byteQuantifiedSize2.ToMB() / band.MailboxSizeWeightFactor);
if (num4 <= 0)
{
this.logger.Log(MigrationEventType.Verbose, "Target database committed load is {0} which is over the limit of {1}, skipping as a target.", new object[]
{
sizeMetric2,
byteQuantifiedSize
});
}
else
{
int num5 = (int)Math.Min(Math.Round(Math.Min(Math.Abs(num2), Math.Abs(num3))), (double)num4);
this.logger.Log(MigrationEventType.Verbose, "Projected to move {0} units out of {1} and into {2}", new object[]
{
num5,
bandData2.Database,
bandData3.Database
});
if (num5 > 0)
{
ByteQuantifiedSize value = ByteQuantifiedSize.FromMB((ulong)((double)num5 * band.MailboxSizeWeightFactor));
LoadMetricStorage loadMetricStorage = new LoadMetricStorage();
loadMetricStorage[band] = (long)num5;
BandMailboxRebalanceData item = new BandMailboxRebalanceData(bandData2.Database, bandData3.Database, loadMetricStorage);
bandData3.TotalWeight += num5;
LoadMetricStorage committedLoad;
LoadMetric metric;
(committedLoad = bandData3.Database.CommittedLoad)[metric = instance] = committedLoad[metric] + (long)value.ToBytes();
this.totalDataSelectedToMove += value;
bandData2.TotalWeight -= num5;
this.results.Add(item);
num2 -= (double)num5;
}
if (num2 <= num)
{
break;
}
}
}
}
}
}
}
