add dc and rack

1 files changed, 60 insertions, 22 deletions

diff --git a/weed/cluster/cluster.go b/weed/cluster/cluster.go
index ad6e6b879..1802ecda0 100644
--- a/weed/cluster/cluster.go
+++ b/weed/cluster/cluster.go
@@ -24,6 +24,15 @@ type Leaders struct {
 	leaders [3]pb.ServerAddress
 }
 
+type DataCenter string
+type Rack string
+type DataCenterBrokers struct {
+	brokers map[Rack]*RackBrokers
+}
+type RackBrokers struct {
+	brokers map[pb.ServerAddress]*ClusterNode
+}
+
 type ClusterNode struct {
 	Address   pb.ServerAddress
 	Version   string
@@ -34,14 +43,14 @@ type ClusterNode struct {
 type Cluster struct {
 	filerGroup2filers map[FilerGroup]*Filers
 	filersLock        sync.RWMutex
-	brokers           map[pb.ServerAddress]*ClusterNode
+	brokers           map[DataCenter]*DataCenterBrokers
 	brokersLock       sync.RWMutex
 }
 
 func NewCluster() *Cluster {
 	return &Cluster{
 		filerGroup2filers: make(map[FilerGroup]*Filers),
-		brokers:           make(map[pb.ServerAddress]*ClusterNode),
+		brokers:           make(map[DataCenter]*DataCenterBrokers),
 	}
 }
 
@@ -57,7 +66,7 @@ func (cluster *Cluster) getFilers(filerGroup FilerGroup, createIfNotFound bool)
 	return filers
 }
 
-func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) AddClusterNode(ns, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress, version string) []*master_pb.KeepConnectedResponse {
 	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
@@ -78,11 +87,24 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAdd
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
-		if existingNode, found := cluster.brokers[address]; found {
-			existingNode.counter++
+		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
+		if !foundDataCenter {
+			existingDataCenterBrokers = &DataCenterBrokers{
+				brokers: make(map[Rack]*RackBrokers),
+			}
+		}
+		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[rack]
+		if !foundRack {
+			existingRackBrokers = &RackBrokers{
+				brokers: make(map[pb.ServerAddress]*ClusterNode),
+			}
+		}
+
+		if existingBroker, found := existingRackBrokers.brokers[address]; found {
+			existingBroker.counter++
 			return nil
 		}
-		cluster.brokers[address] = &ClusterNode{
+		existingRackBrokers.brokers[address] = &ClusterNode{
 			Address:   address,
 			Version:   version,
 			counter:   1,
@@ -111,7 +133,7 @@ func (cluster *Cluster) AddClusterNode(ns, nodeType string, address pb.ServerAdd
 	return nil
 }
 
-func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
+func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, dataCenter DataCenter, rack Rack, address pb.ServerAddress) []*master_pb.KeepConnectedResponse {
 	filerGroup := FilerGroup(ns)
 	switch nodeType {
 	case FilerType:
@@ -133,23 +155,35 @@ func (cluster *Cluster) RemoveClusterNode(ns string, nodeType string, address pb
 	case BrokerType:
 		cluster.brokersLock.Lock()
 		defer cluster.brokersLock.Unlock()
-		if existingNode, found := cluster.brokers[address]; !found {
+
+		existingDataCenterBrokers, foundDataCenter := cluster.brokers[dataCenter]
+		if !foundDataCenter {
 			return nil
-		} else {
-			existingNode.counter--
-			if existingNode.counter <= 0 {
-				delete(cluster.brokers, address)
-				return []*master_pb.KeepConnectedResponse{
-					{
-						ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
-							NodeType: nodeType,
-							Address:  string(address),
-							IsAdd:    false,
-						},
+		}
+		existingRackBrokers, foundRack := existingDataCenterBrokers.brokers[Rack(rack)]
+		if !foundRack {
+			return nil
+		}
+
+		existingBroker, found := existingRackBrokers.brokers[address]
+		if !found {
+			return nil
+		}
+		existingBroker.counter--
+		if existingBroker.counter <= 0 {
+			delete(existingRackBrokers.brokers, address)
+			return []*master_pb.KeepConnectedResponse{
+				{
+					ClusterNodeUpdate: &master_pb.ClusterNodeUpdate{
+						NodeType: nodeType,
+						Address:  string(address),
+						IsAdd:    false,
 					},
-				}
+				},
 			}
 		}
+		return nil
+
 	case MasterType:
 		return []*master_pb.KeepConnectedResponse{
 			{
@@ -179,8 +213,12 @@ func (cluster *Cluster) ListClusterNode(filerGroup FilerGroup, nodeType string)
 	case BrokerType:
 		cluster.brokersLock.RLock()
 		defer cluster.brokersLock.RUnlock()
-		for _, node := range cluster.brokers {
-			nodes = append(nodes, node)
+		for _, dcNodes := range cluster.brokers {
+			for _, rackNodes := range dcNodes.brokers {
+				for _, node := range rackNodes.brokers {
+					nodes = append(nodes, node)
+				}
+			}
 		}
 	case MasterType:
 	}