func (cs *ClusterService) RemoteContactMaster(msg *comm.Message) {
myNode := cs.cluster.MyNode
log.Debug("%d: Got a ContactMaster request: %s", myNode.Id, msg)
if cs.state == state_online {
masters := cs.cluster.Rings.GetRing(cs.masterRing).ResolveToken(master_token)
// make sure I'm the master, and online
if myNode.Status == cluster.Status_Online && masters.IsFirst(myNode) {
node := cluster.NewEmptyNode()
err := node.Unserialize(msg.Message)
if err != nil {
cs.comm.RespondError(msg, os.NewError("Couldn't unmarshal node data"))
log.Error("Couldn't unmarshal node data: %s", err)
return
}
node.Status = cluster.Status_Online
cs.cluster.MergeNode(node, true)
// TODO: Send the cluster back to the node
resp := cs.comm.NewMsgMessage(cs.serviceId)
cs.comm.RespondSource(msg, resp)
//log.Fatal("BLABLA", node.Id)
// TODO: LOCK SO THAT WE DON'T MAKE IT ONLINE TWICE
// TODO: Accept the node
// TODO: Check its rings
// TODO: Broadcast the change
} else {
cs.comm.RedirectFirst(masters, msg)
}
}
}
func (dm *clusterMutation) Unserialize(reader typedio.Reader) {
dm.version, _ = reader.ReadInt64()
nbNodes, _ := reader.ReadUint16()
dm.nodes = make([]*cluster.Node, nbNodes)
var i uint16
for i = 0; i < nbNodes; i++ {
node := cluster.NewEmptyNode()
node.Unserialize(reader)
dm.nodes[i] = node
}
}
func (cs *ClusterService) loadCluster() {
cs.clusterMutex.Lock()
// Load data
log.Debug("cls: Loading cluster data...")
stat, err := os.Stat(cs.clsDataPath)
if err == nil && stat.IsRegular() {
file, err := os.Open(cs.clsDataPath)
if err == nil {
typedFile := typedio.NewReader(file)
cs.clusterVersion, _ = typedFile.ReadInt64() // cluster version
cs.diskVerson = cs.clusterVersion
nbNodes, _ := typedFile.ReadUint16() // nodes count
var i uint16
for i = 0; i < nbNodes; i++ {
node := cluster.NewEmptyNode()
node.Unserialize(typedFile)
node.Status = cluster.Status_Offline
cs.cluster.MergeNode(node, false) // merge node, doesn't notify
}
} else {
log.Error("cls: Error while opening data file", err)
}
}
// replay commit log
log.Info("cls: Replaying commit log...")
cs.commitlog.Replay()
// TODO: Load cluster data
cs.clusterMutex.Unlock()
}