mirror of
https://github.com/duanhf2012/origin.git
synced 2026-02-04 06:54:45 +08:00
480 lines
13 KiB
Go
480 lines
13 KiB
Go
package cluster
|
||
|
||
import (
|
||
"errors"
|
||
"github.com/duanhf2012/origin/v2/log"
|
||
"github.com/duanhf2012/origin/v2/rpc"
|
||
"github.com/duanhf2012/origin/v2/service"
|
||
"time"
|
||
"github.com/duanhf2012/origin/v2/util/timer"
|
||
"google.golang.org/protobuf/proto"
|
||
)
|
||
|
||
const DynamicDiscoveryMasterName = "DiscoveryMaster"
|
||
const DynamicDiscoveryClientName = "DiscoveryClient"
|
||
const RegServiceDiscover = DynamicDiscoveryMasterName + ".RPC_RegServiceDiscover"
|
||
const SubServiceDiscover = DynamicDiscoveryClientName + ".RPC_SubServiceDiscover"
|
||
const AddSubServiceDiscover = DynamicDiscoveryMasterName + ".RPC_AddSubServiceDiscover"
|
||
const NodeRetireRpcMethod = DynamicDiscoveryMasterName+".RPC_NodeRetire"
|
||
|
||
type DynamicDiscoveryMaster struct {
|
||
service.Service
|
||
|
||
mapNodeInfo map[string]struct{}
|
||
nodeInfo []*rpc.NodeInfo
|
||
}
|
||
|
||
type DynamicDiscoveryClient struct {
|
||
service.Service
|
||
|
||
funDelService FunDelNode
|
||
funSetService FunSetNodeInfo
|
||
localNodeId string
|
||
|
||
mapDiscovery map[string]map[string]struct{} //map[masterNodeId]map[nodeId]struct{}
|
||
bRetire bool
|
||
}
|
||
|
||
var masterService DynamicDiscoveryMaster
|
||
var clientService DynamicDiscoveryClient
|
||
|
||
func getDynamicDiscovery() IServiceDiscovery {
|
||
return &clientService
|
||
}
|
||
|
||
func init() {
|
||
masterService.SetName(DynamicDiscoveryMasterName)
|
||
clientService.SetName(DynamicDiscoveryClientName)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) isRegNode(nodeId string) bool {
|
||
_, ok := ds.mapNodeInfo[nodeId]
|
||
return ok
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) updateNodeInfo(nInfo *rpc.NodeInfo) {
|
||
if _,ok:= ds.mapNodeInfo[nInfo.NodeId];ok == false {
|
||
return
|
||
}
|
||
|
||
nodeInfo := proto.Clone(nInfo).(*rpc.NodeInfo)
|
||
for i:=0;i<len(ds.nodeInfo);i++ {
|
||
if ds.nodeInfo[i].NodeId == nodeInfo.NodeId {
|
||
ds.nodeInfo[i] = nodeInfo
|
||
break
|
||
}
|
||
}
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) addNodeInfo(nInfo *rpc.NodeInfo) {
|
||
if len(nInfo.PublicServiceList) == 0 {
|
||
return
|
||
}
|
||
|
||
_, ok := ds.mapNodeInfo[nInfo.NodeId]
|
||
if ok == true {
|
||
return
|
||
}
|
||
ds.mapNodeInfo[nInfo.NodeId] = struct{}{}
|
||
|
||
nodeInfo := proto.Clone(nInfo).(*rpc.NodeInfo)
|
||
ds.nodeInfo = append(ds.nodeInfo, nodeInfo)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) removeNodeInfo(nodeId string) {
|
||
if _,ok:= ds.mapNodeInfo[nodeId];ok == false {
|
||
return
|
||
}
|
||
|
||
for i:=0;i<len(ds.nodeInfo);i++ {
|
||
if ds.nodeInfo[i].NodeId == nodeId {
|
||
ds.nodeInfo = append(ds.nodeInfo[:i],ds.nodeInfo[i+1:]...)
|
||
break
|
||
}
|
||
}
|
||
|
||
delete(ds.mapNodeInfo,nodeId)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) OnInit() error {
|
||
ds.mapNodeInfo = make(map[string]struct{}, 20)
|
||
ds.RegRpcListener(ds)
|
||
|
||
return nil
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) OnStart() {
|
||
var nodeInfo rpc.NodeInfo
|
||
localNodeInfo := cluster.GetLocalNodeInfo()
|
||
nodeInfo.NodeId = localNodeInfo.NodeId
|
||
nodeInfo.ListenAddr = localNodeInfo.ListenAddr
|
||
nodeInfo.PublicServiceList = localNodeInfo.PublicServiceList
|
||
nodeInfo.MaxRpcParamLen = localNodeInfo.MaxRpcParamLen
|
||
nodeInfo.Private = localNodeInfo.Private
|
||
nodeInfo.Retire = localNodeInfo.Retire
|
||
|
||
ds.addNodeInfo(&nodeInfo)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) OnNodeConnected(nodeId string) {
|
||
//没注册过结点不通知
|
||
if ds.isRegNode(nodeId) == false {
|
||
return
|
||
}
|
||
|
||
//向它发布所有服务列表信息
|
||
var notifyDiscover rpc.SubscribeDiscoverNotify
|
||
notifyDiscover.IsFull = true
|
||
notifyDiscover.NodeInfo = ds.nodeInfo
|
||
notifyDiscover.MasterNodeId = cluster.GetLocalNodeInfo().NodeId
|
||
|
||
ds.GoNode(nodeId, SubServiceDiscover, ¬ifyDiscover)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) OnNodeDisconnect(nodeId string) {
|
||
if ds.isRegNode(nodeId) == false {
|
||
return
|
||
}
|
||
|
||
ds.removeNodeInfo(nodeId)
|
||
|
||
var notifyDiscover rpc.SubscribeDiscoverNotify
|
||
notifyDiscover.MasterNodeId = cluster.GetLocalNodeInfo().NodeId
|
||
notifyDiscover.DelNodeId = nodeId
|
||
//删除结点
|
||
cluster.DelNode(nodeId, true)
|
||
|
||
//无注册过的结点不广播，避免非当前Master网络中的连接断开时通知到本网络
|
||
ds.CastGo(SubServiceDiscover, ¬ifyDiscover)
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) RpcCastGo(serviceMethod string, args interface{}) {
|
||
for nodeId, _ := range ds.mapNodeInfo {
|
||
ds.GoNode(nodeId, serviceMethod, args)
|
||
}
|
||
}
|
||
|
||
func (ds *DynamicDiscoveryMaster) RPC_NodeRetire(req *rpc.NodeRetireReq, res *rpc.Empty) error {
|
||
log.Info("node is retire",log.String("nodeId",req.NodeInfo.NodeId),log.Bool("retire",req.NodeInfo.Retire))
|
||
|
||
ds.updateNodeInfo(req.NodeInfo)
|
||
|
||
var notifyDiscover rpc.SubscribeDiscoverNotify
|
||
notifyDiscover.MasterNodeId = cluster.GetLocalNodeInfo().NodeId
|
||
notifyDiscover.NodeInfo = append(notifyDiscover.NodeInfo, req.NodeInfo)
|
||
ds.RpcCastGo(SubServiceDiscover, ¬ifyDiscover)
|
||
|
||
return nil
|
||
}
|
||
|
||
// 收到注册过来的结点
|
||
func (ds *DynamicDiscoveryMaster) RPC_RegServiceDiscover(req *rpc.ServiceDiscoverReq, res *rpc.Empty) error {
|
||
if req.NodeInfo == nil {
|
||
err := errors.New("RPC_RegServiceDiscover req is error.")
|
||
log.Error(err.Error())
|
||
|
||
return err
|
||
}
|
||
|
||
//广播给其他所有结点
|
||
var notifyDiscover rpc.SubscribeDiscoverNotify
|
||
notifyDiscover.MasterNodeId = cluster.GetLocalNodeInfo().NodeId
|
||
notifyDiscover.NodeInfo = append(notifyDiscover.NodeInfo, req.NodeInfo)
|
||
ds.RpcCastGo(SubServiceDiscover, ¬ifyDiscover)
|
||
|
||
//存入本地
|
||
ds.addNodeInfo(req.NodeInfo)
|
||
|
||
//初始化结点信息
|
||
var nodeInfo NodeInfo
|
||
nodeInfo.NodeId = req.NodeInfo.NodeId
|
||
nodeInfo.Private = req.NodeInfo.Private
|
||
nodeInfo.ServiceList = req.NodeInfo.PublicServiceList
|
||
nodeInfo.PublicServiceList = req.NodeInfo.PublicServiceList
|
||
nodeInfo.ListenAddr = req.NodeInfo.ListenAddr
|
||
nodeInfo.MaxRpcParamLen = req.NodeInfo.MaxRpcParamLen
|
||
nodeInfo.Retire = req.NodeInfo.Retire
|
||
|
||
//主动删除已经存在的结点,确保先断开，再连接
|
||
cluster.serviceDiscoveryDelNode(nodeInfo.NodeId, true)
|
||
|
||
//加入到本地Cluster模块中，将连接该结点
|
||
cluster.serviceDiscoverySetNodeInfo(&nodeInfo)
|
||
|
||
return nil
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnInit() error {
|
||
dc.RegRpcListener(dc)
|
||
dc.mapDiscovery = map[string]map[string]struct{}{}
|
||
return nil
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) addMasterNode(masterNodeId string, nodeId string) {
|
||
_, ok := dc.mapDiscovery[masterNodeId]
|
||
if ok == false {
|
||
dc.mapDiscovery[masterNodeId] = map[string]struct{}{}
|
||
}
|
||
dc.mapDiscovery[masterNodeId][nodeId] = struct{}{}
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) removeMasterNode(masterNodeId string, nodeId string) {
|
||
mapNodeId, ok := dc.mapDiscovery[masterNodeId]
|
||
if ok == false {
|
||
return
|
||
}
|
||
|
||
delete(mapNodeId, nodeId)
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) findNodeId(nodeId string) bool {
|
||
for _, mapNodeId := range dc.mapDiscovery {
|
||
_, ok := mapNodeId[nodeId]
|
||
if ok == true {
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnStart() {
|
||
//2.添加并连接发现主结点
|
||
dc.addDiscoveryMaster()
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) addDiscoveryMaster() {
|
||
discoveryNodeList := cluster.GetDiscoveryNodeList()
|
||
for i := 0; i < len(discoveryNodeList); i++ {
|
||
if discoveryNodeList[i].NodeId == cluster.GetLocalNodeInfo().NodeId {
|
||
continue
|
||
}
|
||
dc.funSetService(&discoveryNodeList[i])
|
||
}
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) fullCompareDiffNode(masterNodeId string, mapNodeInfo map[string]*rpc.NodeInfo) []string {
|
||
if mapNodeInfo == nil {
|
||
return nil
|
||
}
|
||
|
||
diffNodeIdSlice := make([]string, 0, len(mapNodeInfo))
|
||
mapNodeId := map[string]struct{}{}
|
||
mapNodeId, ok := dc.mapDiscovery[masterNodeId]
|
||
if ok == false {
|
||
return nil
|
||
}
|
||
|
||
//本地任何Master都不存在的，放到diffNodeIdSlice
|
||
for nodeId, _ := range mapNodeId {
|
||
_, ok := mapNodeInfo[nodeId]
|
||
if ok == false {
|
||
diffNodeIdSlice = append(diffNodeIdSlice, nodeId)
|
||
}
|
||
}
|
||
|
||
return diffNodeIdSlice
|
||
}
|
||
|
||
//订阅发现的服务通知
|
||
func (dc *DynamicDiscoveryClient) RPC_SubServiceDiscover(req *rpc.SubscribeDiscoverNotify) error {
|
||
mapNodeInfo := map[string]*rpc.NodeInfo{}
|
||
for _, nodeInfo := range req.NodeInfo {
|
||
//不对本地结点或者不存在任何公开服务的结点
|
||
if nodeInfo.NodeId == dc.localNodeId {
|
||
continue
|
||
}
|
||
|
||
if cluster.IsMasterDiscoveryNode() == false && len(nodeInfo.PublicServiceList) == 1 &&
|
||
nodeInfo.PublicServiceList[0] == DynamicDiscoveryClientName {
|
||
continue
|
||
}
|
||
|
||
//遍历所有的公开服务，并筛选之
|
||
for _, serviceName := range nodeInfo.PublicServiceList {
|
||
nInfo := mapNodeInfo[nodeInfo.NodeId]
|
||
if nInfo == nil {
|
||
nInfo = &rpc.NodeInfo{}
|
||
nInfo.NodeId = nodeInfo.NodeId
|
||
nInfo.ListenAddr = nodeInfo.ListenAddr
|
||
nInfo.MaxRpcParamLen = nodeInfo.MaxRpcParamLen
|
||
nInfo.Retire = nodeInfo.Retire
|
||
nInfo.Private = nodeInfo.Private
|
||
|
||
mapNodeInfo[nodeInfo.NodeId] = nInfo
|
||
}
|
||
|
||
nInfo.PublicServiceList = append(nInfo.PublicServiceList, serviceName)
|
||
}
|
||
}
|
||
|
||
//如果为完整同步，则找出差异的结点
|
||
var willDelNodeId []string
|
||
if req.IsFull == true {
|
||
diffNode := dc.fullCompareDiffNode(req.MasterNodeId, mapNodeInfo)
|
||
if len(diffNode) > 0 {
|
||
willDelNodeId = append(willDelNodeId, diffNode...)
|
||
}
|
||
}
|
||
|
||
//指定删除结点
|
||
if req.DelNodeId != rpc.NodeIdNull && req.DelNodeId != dc.localNodeId {
|
||
willDelNodeId = append(willDelNodeId, req.DelNodeId)
|
||
}
|
||
|
||
//删除不必要的结点
|
||
for _, nodeId := range willDelNodeId {
|
||
cluster.TriggerDiscoveryEvent(false,nodeId,nil)
|
||
dc.removeMasterNode(req.MasterNodeId, nodeId)
|
||
if dc.findNodeId(nodeId) == false {
|
||
dc.funDelService(nodeId, false)
|
||
}
|
||
}
|
||
|
||
//设置新结点
|
||
for _, nodeInfo := range mapNodeInfo {
|
||
bSet := dc.setNodeInfo(req.MasterNodeId,nodeInfo)
|
||
if bSet == false {
|
||
continue
|
||
}
|
||
|
||
cluster.TriggerDiscoveryEvent(true,nodeInfo.NodeId,nodeInfo.PublicServiceList)
|
||
}
|
||
|
||
return nil
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) isDiscoverNode(nodeId string) bool {
|
||
for i := 0; i < len(cluster.masterDiscoveryNodeList); i++ {
|
||
if cluster.masterDiscoveryNodeList[i].NodeId == nodeId {
|
||
return true
|
||
}
|
||
}
|
||
|
||
return false
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnNodeConnected(nodeId string) {
|
||
dc.regServiceDiscover(nodeId)
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnRetire(){
|
||
dc.bRetire = true
|
||
|
||
masterNodeList := cluster.GetDiscoveryNodeList()
|
||
for i:=0;i<len(masterNodeList);i++{
|
||
var nodeRetireReq rpc.NodeRetireReq
|
||
|
||
nodeRetireReq.NodeInfo = &rpc.NodeInfo{}
|
||
nodeRetireReq.NodeInfo.NodeId = cluster.localNodeInfo.NodeId
|
||
nodeRetireReq.NodeInfo.ListenAddr = cluster.localNodeInfo.ListenAddr
|
||
nodeRetireReq.NodeInfo.MaxRpcParamLen = cluster.localNodeInfo.MaxRpcParamLen
|
||
nodeRetireReq.NodeInfo.PublicServiceList = cluster.localNodeInfo.PublicServiceList
|
||
nodeRetireReq.NodeInfo.Retire = dc.bRetire
|
||
nodeRetireReq.NodeInfo.Private = cluster.localNodeInfo.Private
|
||
|
||
err := dc.GoNode(masterNodeList[i].NodeId,NodeRetireRpcMethod,&nodeRetireReq)
|
||
if err!= nil {
|
||
log.Error("call "+NodeRetireRpcMethod+" is fail",log.ErrorAttr("err",err))
|
||
}
|
||
}
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) regServiceDiscover(nodeId string){
|
||
nodeInfo := cluster.GetMasterDiscoveryNodeInfo(nodeId)
|
||
if nodeInfo == nil {
|
||
return
|
||
}
|
||
|
||
var req rpc.ServiceDiscoverReq
|
||
req.NodeInfo = &rpc.NodeInfo{}
|
||
req.NodeInfo.NodeId = cluster.localNodeInfo.NodeId
|
||
req.NodeInfo.ListenAddr = cluster.localNodeInfo.ListenAddr
|
||
req.NodeInfo.MaxRpcParamLen = cluster.localNodeInfo.MaxRpcParamLen
|
||
req.NodeInfo.PublicServiceList = cluster.localNodeInfo.PublicServiceList
|
||
req.NodeInfo.Retire = dc.bRetire
|
||
req.NodeInfo.Private = cluster.localNodeInfo.Private
|
||
|
||
//向Master服务同步本Node服务信息
|
||
err := dc.AsyncCallNode(nodeId, RegServiceDiscover, &req, func(res *rpc.Empty, err error) {
|
||
if err != nil {
|
||
log.Error("call "+RegServiceDiscover+" is fail :"+ err.Error())
|
||
dc.AfterFunc(time.Second*3, func(timer *timer.Timer) {
|
||
dc.regServiceDiscover(nodeId)
|
||
})
|
||
|
||
return
|
||
}
|
||
})
|
||
if err != nil {
|
||
log.Error("call "+ RegServiceDiscover+" is fail :"+ err.Error())
|
||
}
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) canDiscoveryService(fromMasterNodeId string,serviceName string) bool{
|
||
canDiscovery := true
|
||
|
||
for i:=0;i<len(cluster.GetLocalNodeInfo().MasterDiscoveryService);i++{
|
||
masterNodeId := cluster.GetLocalNodeInfo().MasterDiscoveryService[i].MasterNodeId
|
||
|
||
if masterNodeId == fromMasterNodeId || masterNodeId == rpc.NodeIdNull {
|
||
canDiscovery = false
|
||
|
||
for _,discoveryService := range cluster.GetLocalNodeInfo().MasterDiscoveryService[i].DiscoveryService {
|
||
if discoveryService == serviceName {
|
||
return true
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return canDiscovery
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) setNodeInfo(masterNodeId string,nodeInfo *rpc.NodeInfo) bool{
|
||
if nodeInfo == nil || nodeInfo.Private == true || nodeInfo.NodeId == dc.localNodeId {
|
||
return false
|
||
}
|
||
|
||
//筛选关注的服务
|
||
var discoverServiceSlice = make([]string, 0, 24)
|
||
for _, pubService := range nodeInfo.PublicServiceList {
|
||
if dc.canDiscoveryService(masterNodeId,pubService) == true {
|
||
discoverServiceSlice = append(discoverServiceSlice,pubService)
|
||
}
|
||
}
|
||
|
||
if len(discoverServiceSlice) == 0 {
|
||
return false
|
||
}
|
||
|
||
var nInfo NodeInfo
|
||
nInfo.ServiceList = discoverServiceSlice
|
||
nInfo.PublicServiceList = discoverServiceSlice
|
||
nInfo.NodeId = nodeInfo.NodeId
|
||
nInfo.ListenAddr = nodeInfo.ListenAddr
|
||
nInfo.MaxRpcParamLen = nodeInfo.MaxRpcParamLen
|
||
nInfo.Retire = nodeInfo.Retire
|
||
nInfo.Private = nodeInfo.Private
|
||
|
||
dc.funSetService(&nInfo)
|
||
|
||
return true
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnNodeDisconnect(nodeId string) {
|
||
//将Discard结点清理
|
||
cluster.DiscardNode(nodeId)
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) InitDiscovery(localNodeId string, funDelNode FunDelNode, funSetNodeInfo FunSetNodeInfo) error {
|
||
dc.localNodeId = localNodeId
|
||
dc.funDelService = funDelNode
|
||
dc.funSetService = funSetNodeInfo
|
||
|
||
return nil
|
||
}
|
||
|
||
func (dc *DynamicDiscoveryClient) OnNodeStop() {
|
||
}
|