public void Deserialize(Common.Serialization.IO.CompactReader reader)
{
this.Type = (StateTransferType)reader.ReadByte();
this.DBName = reader.ReadString();
this.ColName = reader.ReadString();
this.NodeInfo = (NodeIdentity)reader.ReadObject();
this.DistributionType = (DistributionMethod)reader.ReadByte();
}
public StateTransferIdentity(String DBName, String ColName, NodeIdentity nodeInfo, StateTransferType type, Alachisoft.NosDB.Common.Toplogies.Impl.Distribution.DistributionMethod distributionType)
{
this.DBName = DBName;
this.ColName = ColName;
this.NodeInfo = nodeInfo;
this.Type = type;
this.DistributionType = distributionType;
}
/// <summary>
/// Create a new cluster dictionary, only called internally.
/// </summary>
internal ClusterDictionary(ConflictResolution conflictResolutionPolicy = ConflictResolution.CHRONOLOGICAL,
DistributionMethod clusterDistributionMethod = DistributionMethod.FULLY_DISTRIBUTED,
UpdateInterval updateIntervalPolicy = UpdateInterval.IMMEDIATE,
Initialization initializationPolicy = Initialization.LAZY)
{
ConflictResolutionPolicy = conflictResolutionPolicy;
ClusterDistributionMethod = clusterDistributionMethod;
UpdateIntervalPolicy = updateIntervalPolicy;
InitializationPolicy = initializationPolicy;
initialize();
}
public virtual IAmountDistributionService <Item> CreateService <Item>(DistributionMethod method, DistributionParameter <Item> distributeParameter)
where Item : class, IAmountItem
{
switch (method)
{
case DistributionMethod.RemainderToBiggestLine:
return(new RemainderToBiggestLineService <Item>(distributeParameter));
case DistributionMethod.RemainderToLastLine:
return(new RemainderToLastLineService <Item>(distributeParameter));
case DistributionMethod.AccumulateRemainderToNonZeroLine:
return(new RemainderToLastLineService <Item>(distributeParameter));
default:
throw new NotImplementedException();
}
}
public TableDef(TableSource source, string tabName, List <ColumnDef> columns, string distributedBy)
{
int npart = 1;
Dictionary <string, ColumnDef> cols = new Dictionary <string, ColumnDef>();
foreach (var c in columns)
{
cols.Add(c.name_, c);
}
source_ = source;
name_ = Utils.normalizeName(tabName);
columns_ = cols;
Debug.Assert(distMethod_ == DistributionMethod.NonDistributed);
if (distributedBy != null)
{
ColumnDef partcol;
if (distributedBy == "REPLICATED")
{
distMethod_ = DistributionMethod.Replicated;
}
else if (distributedBy == "ROUNDROBIN")
{
distMethod_ = DistributionMethod.Roundrobin;
}
else
{
cols.TryGetValue(distributedBy, out partcol);
if (partcol is null)
{
throw new SemanticAnalyzeException($"can't find distribution column '{distributedBy}'");
}
distMethod_ = DistributionMethod.Distributed;
distributedBy_ = partcol;
}
npart = QueryOption.num_machines_;
}
for (int i = 0; i < npart; i++)
{
distributions_.Add(new Distribution());
}
Debug.Assert(distributedBy_ is null || distMethod_ == DistributionMethod.Distributed);
}
public StateTrxfrOnReplicaTask(NodeContext context, String dbName, String colName, IDispatcher operationDispatcher, DistributionMethod distributionType)
: base(context, dbName, colName, operationDispatcher, StateTransferType.INTRA_SHARD, distributionType)
{
_allowBulkInSparsedBuckets = false;
_trasferType = StateTransferType.INTRA_SHARD;
}
public Distributor(DistributionMethod method)
{
Method = method;
}
