diff --git a/rpc/client.go b/rpc/client.go
index 7f0a5fa..d7ba594 100644
--- a/rpc/client.go
+++ b/rpc/client.go
@@ -1,7 +1,6 @@
 package rpc
 
 import (
-	"container/list"
 	"errors"
 	"github.com/duanhf2012/origin/network"
 	"reflect"
@@ -21,7 +20,7 @@ const(
 
 
 	DefaultConnectInterval = 2*time.Second
-	DefaultCheckRpcCallTimeoutInterval = 5*time.Second
+	DefaultCheckRpcCallTimeoutInterval = 1*time.Second
 	DefaultRpcTimeout = 15*time.Second
 )
 
@@ -31,8 +30,8 @@ type IRealClient interface {
 	SetConn(conn *network.TCPConn)
 	Close(waitDone bool)
 
-	AsyncCall(rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{}) error
-	Go(rpcHandler IRpcHandler, noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call
+	AsyncCall(timeout time.Duration,rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{},cancelable bool)  (CancelRpc,error)
+	Go(timeout time.Duration,rpcHandler IRpcHandler, noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call
 	RawGo(rpcHandler IRpcHandler,processor IRpcProcessor, noReply bool, rpcMethodId uint32, serviceMethod string, rawArgs []byte, reply interface{}) *Call
 	IsConnected() bool
 
@@ -45,11 +44,11 @@ type Client struct {
 	nodeId        int
 	pendingLock          sync.RWMutex
 	startSeq             uint64
-	pending              map[uint64]*list.Element
-	pendingTimer         *list.List
+	pending              map[uint64]*Call
 	callRpcTimeout       time.Duration
 	maxCheckCallRpcCount int
 
+	callTimerHeap CallTimerHeap
 	IRealClient
 }
 
@@ -60,7 +59,6 @@ func (client *Client) NewClientAgent(conn *network.TCPConn) network.Agent {
 }
 
 func (bc *Client) makeCallFail(call *Call) {
-	bc.removePending(call.Seq)
 	if call.callback != nil && call.callback.IsValid() {
 		call.rpcHandler.PushRpcResponse(call)
 	} else {
@@ -71,55 +69,52 @@ func (bc *Client) makeCallFail(call *Call) {
 func (bc *Client) checkRpcCallTimeout() {
 	for{
 		time.Sleep(DefaultCheckRpcCallTimeoutInterval)
-		now := time.Now()
-
 		for i := 0; i < bc.maxCheckCallRpcCount; i++ {
 			bc.pendingLock.Lock()
-			if bc.pendingTimer == nil {
+			
+			callSeq := bc.callTimerHeap.PopTimeout()
+			if callSeq == 0 {
 				bc.pendingLock.Unlock()
 				break
 			}
 
-			pElem := bc.pendingTimer.Front()
-			if pElem == nil {
-				bc.pendingLock.Unlock()
-				break
-			}
-			pCall := pElem.Value.(*Call)
-			if now.Sub(pCall.callTime) > bc.callRpcTimeout {
-				strTimeout := strconv.FormatInt(int64(bc.callRpcTimeout/time.Second), 10)
-				pCall.Err = errors.New("RPC call takes more than " + strTimeout + " seconds,method is "+pCall.ServiceMethod)
-				log.SError(pCall.Err.Error())
-				bc.makeCallFail(pCall)
+			pCall := bc.pending[callSeq]
+			if pCall == nil {
 				bc.pendingLock.Unlock()
+				log.SError("callSeq ",callSeq," is not find")
 				continue
 			}
+
+			delete(bc.pending,callSeq)
+			strTimeout := strconv.FormatInt(int64(pCall.TimeOut.Seconds()), 10)
+			pCall.Err = errors.New("RPC call takes more than " + strTimeout + " seconds,method is "+pCall.ServiceMethod)
+			log.SError(pCall.Err.Error())
+			bc.makeCallFail(pCall)
 			bc.pendingLock.Unlock()
-			break
+			continue
 		}
 	}
 }
 
 func (client *Client) InitPending() {
 	client.pendingLock.Lock()
-	if client.pending != nil {
-		for _, v := range client.pending {
-			v.Value.(*Call).Err = errors.New("node is disconnect")
-			v.Value.(*Call).done <- v.Value.(*Call)
-		}
-	}
-
-	client.pending = make(map[uint64]*list.Element, 4096)
-	client.pendingTimer = list.New()
+	client.callTimerHeap.Init()
+	client.pending = make(map[uint64]*Call,4096)
 	client.pendingLock.Unlock()
 }
 
-
 func (bc *Client) AddPending(call *Call) {
 	bc.pendingLock.Lock()
-	call.callTime = time.Now()
-	elemTimer := bc.pendingTimer.PushBack(call)
-	bc.pending[call.Seq] = elemTimer //如果下面发送失败，将会一一直存在这里
+
+	if call.Seq == 0 {
+		bc.pendingLock.Unlock()
+		log.SStack("call is error.")
+		return
+	}
+
+	bc.pending[call.Seq] = call
+	bc.callTimerHeap.AddTimer(call.Seq,call.TimeOut)
+
 	bc.pendingLock.Unlock()
 }
 
@@ -138,30 +133,45 @@ func (bc *Client) removePending(seq uint64) *Call {
 	if ok == false {
 		return nil
 	}
-	call := v.Value.(*Call)
-	bc.pendingTimer.Remove(v)
+
+	bc.callTimerHeap.Cancel(seq)
 	delete(bc.pending, seq)
-	return call
+	return v
 }
 
-func (bc *Client) FindPending(seq uint64) *Call {
+func (bc *Client) FindPending(seq uint64) (pCall *Call) {
 	if seq == 0 {
 		return nil
 	}
 	
 	bc.pendingLock.Lock()
-	v, ok := bc.pending[seq]
-	if ok == false {
-		bc.pendingLock.Unlock()
-		return nil
-	}
-
-	pCall := v.Value.(*Call)
+	pCall = bc.pending[seq]
 	bc.pendingLock.Unlock()
 
 	return pCall
 }
 
+func (bc *Client) cleanPending(){
+	bc.pendingLock.Lock()
+	for  {
+		callSeq := bc.callTimerHeap.PopFirst()
+		if callSeq == 0 {
+			break
+		}
+		pCall := bc.pending[callSeq]
+		if pCall == nil {
+			log.SError("callSeq ",callSeq," is not find")
+			continue
+		}
+
+		delete(bc.pending,callSeq)
+		pCall.Err = errors.New("nodeid is disconnect ")
+		bc.makeCallFail(pCall)
+	}
+
+	bc.pendingLock.Unlock()
+}
+
 func (bc *Client) generateSeq() uint64 {
 	return atomic.AddUint64(&bc.startSeq, 1)
 }
diff --git a/rpc/lclient.go b/rpc/lclient.go
index f4c3728..9ea3c90 100644
--- a/rpc/lclient.go
+++ b/rpc/lclient.go
@@ -7,6 +7,7 @@ import (
 	"reflect"
 	"strings"
 	"sync/atomic"
+	"time"
 )
 
 //本结点的Client
@@ -36,7 +37,7 @@ func (lc *LClient) SetConn(conn *network.TCPConn){
 func (lc *LClient) Close(waitDone bool){
 }
 
-func (lc *LClient) Go(rpcHandler IRpcHandler,noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call {
+func (lc *LClient) Go(timeout time.Duration,rpcHandler IRpcHandler,noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call {
 	pLocalRpcServer := rpcHandler.GetRpcServer()()
 	//判断是否是同一服务
 	findIndex := strings.Index(serviceMethod, ".")
@@ -65,7 +66,7 @@ func (lc *LClient) Go(rpcHandler IRpcHandler,noReply bool, serviceMethod string,
 	}
 
 	//其他的rpcHandler的处理器
-	return pLocalRpcServer.selfNodeRpcHandlerGo(nil, lc.selfClient, noReply, serviceName, 0, serviceMethod, args, reply, nil)
+	return pLocalRpcServer.selfNodeRpcHandlerGo(timeout,nil, lc.selfClient, noReply, serviceName, 0, serviceMethod, args, reply, nil)
 }
 
 
@@ -86,11 +87,11 @@ func (rc *LClient) RawGo(rpcHandler IRpcHandler,processor IRpcProcessor, noReply
 	}
 
 	//其他的rpcHandler的处理器
-	return pLocalRpcServer.selfNodeRpcHandlerGo(processor,rc.selfClient, true, serviceName, rpcMethodId, serviceName, nil, nil, rawArgs)
+	return pLocalRpcServer.selfNodeRpcHandlerGo(DefaultRpcTimeout,processor,rc.selfClient, true, serviceName, rpcMethodId, serviceName, nil, nil, rawArgs)
 }
 
 
-func (lc *LClient) AsyncCall(rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, reply interface{}) error {
+func (lc *LClient) AsyncCall(timeout time.Duration,rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, reply interface{},cancelable bool)  (CancelRpc,error) {
 	pLocalRpcServer := rpcHandler.GetRpcServer()()
 
 	//判断是否是同一服务
@@ -99,22 +100,22 @@ func (lc *LClient) AsyncCall(rpcHandler IRpcHandler, serviceMethod string, callb
 		err := errors.New("Call serviceMethod " + serviceMethod + " is error!")
 		callback.Call([]reflect.Value{reflect.ValueOf(reply), reflect.ValueOf(err)})
 		log.SError(err.Error())
-		return nil
+		return emptyCancelRpc,nil
 	}
 
 	serviceName := serviceMethod[:findIndex]
 	//调用自己rpcHandler处理器
 	if serviceName == rpcHandler.GetName() { //自己服务调用
-		return pLocalRpcServer.myselfRpcHandlerGo(lc.selfClient,serviceName, serviceMethod, args,callback ,reply)
+		return emptyCancelRpc,pLocalRpcServer.myselfRpcHandlerGo(lc.selfClient,serviceName, serviceMethod, args,callback ,reply)
 	}
 
 	//其他的rpcHandler的处理器
-	err := pLocalRpcServer.selfNodeRpcHandlerAsyncGo(lc.selfClient, rpcHandler, false, serviceName, serviceMethod, args, reply, callback)
+	calcelRpc,err := pLocalRpcServer.selfNodeRpcHandlerAsyncGo(timeout,lc.selfClient, rpcHandler, false, serviceName, serviceMethod, args, reply, callback,cancelable)
 	if err != nil {
 		callback.Call([]reflect.Value{reflect.ValueOf(reply), reflect.ValueOf(err)})
 	}
 
-	return nil
+	return calcelRpc,nil
 }
 
 func NewLClient(nodeId int) *Client{
diff --git a/rpc/rclient.go b/rpc/rclient.go
index b0eaa45..84f5748 100644
--- a/rpc/rclient.go
+++ b/rpc/rclient.go
@@ -9,6 +9,7 @@ import (
 	"reflect"
 	"runtime"
 	"sync/atomic"
+	"time"
 )
 
 //跨结点连接的Client
@@ -43,7 +44,7 @@ func (rc *RClient) SetConn(conn *network.TCPConn){
 	rc.Unlock()
 }
 
-func (rc *RClient) Go(rpcHandler IRpcHandler,noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call {
+func (rc *RClient) Go(timeout time.Duration,rpcHandler IRpcHandler,noReply bool, serviceMethod string, args interface{}, reply interface{}) *Call {
 	_, processor := GetProcessorType(args)
 	InParam, err := processor.Marshal(args)
 	if err != nil {
@@ -114,20 +115,20 @@ func (rc *RClient) RawGo(rpcHandler IRpcHandler,processor IRpcProcessor, noReply
 }
 
 
-func (rc *RClient) AsyncCall(rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{}) error {
-	err := rc.asyncCall(rpcHandler, serviceMethod, callback, args, replyParam)
+func (rc *RClient) AsyncCall(timeout time.Duration,rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{},cancelable bool)  (CancelRpc,error) {
+	cancelRpc,err := rc.asyncCall(timeout,rpcHandler, serviceMethod, callback, args, replyParam,cancelable)
 	if err != nil {
 		callback.Call([]reflect.Value{reflect.ValueOf(replyParam), reflect.ValueOf(err)})
 	}
 
-	return nil
+	return cancelRpc,nil
 }
 
-func (rc *RClient) asyncCall(rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{}) error {
+func (rc *RClient) asyncCall(timeout time.Duration,rpcHandler IRpcHandler, serviceMethod string, callback reflect.Value, args interface{}, replyParam interface{},cancelable bool) (CancelRpc,error) {
 	processorType, processor := GetProcessorType(args)
 	InParam, herr := processor.Marshal(args)
 	if herr != nil {
-		return herr
+		return emptyCancelRpc,herr
 	}
 
 	seq := rc.selfClient.generateSeq()
@@ -135,19 +136,19 @@ func (rc *RClient) asyncCall(rpcHandler IRpcHandler, serviceMethod string, callb
 	bytes, err := processor.Marshal(request.RpcRequestData)
 	ReleaseRpcRequest(request)
 	if err != nil {
-		return err
+		return emptyCancelRpc,err
 	}
 
 	conn := rc.GetConn()
 	if conn == nil || conn.IsConnected()==false {
-		return errors.New("Rpc server is disconnect,call " + serviceMethod)
+		return emptyCancelRpc,errors.New("Rpc server is disconnect,call " + serviceMethod)
 	}
 
 	bCompress := uint8(0x7f)
 	if rc.compressBytesLen>0 &&len(bytes) >= rc.compressBytesLen {
 		cnt,cErr := compressor.CompressBlock(bytes,rc.compressBuff[:])
 		if cErr != nil {
-			return cErr
+			return emptyCancelRpc,cErr
 		}
 		bytes = rc.compressBuff[:cnt]
 		bCompress = 0xff
@@ -159,18 +160,23 @@ func (rc *RClient) asyncCall(rpcHandler IRpcHandler, serviceMethod string, callb
 	call.rpcHandler = rpcHandler
 	call.ServiceMethod = serviceMethod
 	call.Seq = seq
+	call.TimeOut = timeout
 	rc.selfClient.AddPending(call)
 
 	err = conn.WriteMsg([]byte{uint8(processorType)&bCompress}, bytes)
 	if err != nil {
 		rc.selfClient.RemovePending(call.Seq)
 		ReleaseCall(call)
-		return err
+		return emptyCancelRpc,err
 	}
 
-	return nil
-}
+	if cancelable {
+		rpcCancel := RpcCancel{CallSeq:seq,Cli: rc.selfClient}
+		return rpcCancel.CancelRpc,nil
+	}
 
+	return emptyCancelRpc,nil
+}
 
 
 func (rc *RClient) Run() {
@@ -294,18 +300,6 @@ func NewRClient(nodeId int, addr string, maxRpcParamLen uint32,compressBytesLen
 
 func (rc *RClient) Close(waitDone bool) {
 	rc.TCPClient.Close(waitDone)
-
-	rc.selfClient.pendingLock.Lock()
-	for  {
-		pElem := rc.selfClient.pendingTimer.Front()
-		if pElem == nil {
-			break
-		}
-
-		pCall := pElem.Value.(*Call)
-		pCall.Err = errors.New("nodeid is disconnect ")
-		rc.selfClient.makeCallFail(pCall)
-	}
-	rc.selfClient.pendingLock.Unlock()
+	rc.selfClient.cleanPending()
 }
 
diff --git a/rpc/rpc.go b/rpc/rpc.go
index f21d940..5ebb9c6 100644
--- a/rpc/rpc.go
+++ b/rpc/rpc.go
@@ -68,7 +68,16 @@ type Call struct {
 	connId        int
 	callback      *reflect.Value
 	rpcHandler    IRpcHandler
-	callTime      time.Time
+	TimeOut       time.Duration
+}
+
+type RpcCancel struct {
+	Cli *Client
+	CallSeq uint64
+}
+
+func (rc *RpcCancel) CancelRpc(){
+	rc.Cli.RemovePending(rc.CallSeq)
 }
 
 func (slf *RpcRequest) Clear() *RpcRequest{
diff --git a/rpc/rpchandler.go b/rpc/rpchandler.go
index 8edcfcc..3c54456 100644
--- a/rpc/rpchandler.go
+++ b/rpc/rpchandler.go
@@ -9,6 +9,7 @@ import (
 	"strings"
 	"unicode"
 	"unicode/utf8"
+	"time"
 )
 
 const maxClusterNode int = 128
@@ -75,6 +76,9 @@ type IDiscoveryServiceListener interface {
 	OnUnDiscoveryService(nodeId int, serviceName []string)
 }
 
+type CancelRpc func()
+func emptyCancelRpc(){}
+
 type IRpcHandler interface {
 	IRpcHandlerChannel
 	GetName() string
@@ -83,11 +87,18 @@ type IRpcHandler interface {
 	HandlerRpcRequest(request *RpcRequest)
 	HandlerRpcResponseCB(call *Call)
 	CallMethod(client *Client,ServiceMethod string, param interface{},callBack reflect.Value, reply interface{}) error
-	AsyncCall(serviceMethod string, args interface{}, callback interface{}) error
+
 	Call(serviceMethod string, args interface{}, reply interface{}) error
-	Go(serviceMethod string, args interface{}) error
-	AsyncCallNode(nodeId int, serviceMethod string, args interface{}, callback interface{}) error
 	CallNode(nodeId int, serviceMethod string, args interface{}, reply interface{}) error
+	AsyncCall(serviceMethod string, args interface{}, callback interface{}) error
+	AsyncCallNode(nodeId int, serviceMethod string, args interface{}, callback interface{}) error
+
+	CallWithTimeout(timeout time.Duration,serviceMethod string, args interface{}, reply interface{}) error
+	CallNodeWithTimeout(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, reply interface{}) error
+	AsyncCallWithTimeout(timeout time.Duration,serviceMethod string, args interface{}, callback interface{})  (CancelRpc,error)
+	AsyncCallNodeWithTimeout(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, callback interface{})  (CancelRpc,error)
+
+	Go(serviceMethod string, args interface{}) error
 	GoNode(nodeId int, serviceMethod string, args interface{}) error
 	RawGoNode(rpcProcessorType RpcProcessorType, nodeId int, rpcMethodId uint32, serviceName string, rawArgs []byte) error
 	CastGo(serviceMethod string, args interface{}) error
@@ -433,7 +444,7 @@ func (handler *RpcHandler) goRpc(processor IRpcProcessor, bCast bool, nodeId int
 
 	//2.rpcClient调用
 	for i := 0; i < count; i++ {
-		pCall := pClientList[i].Go(handler.rpcHandler,true, serviceMethod, args, nil)
+		pCall := pClientList[i].Go(DefaultRpcTimeout,handler.rpcHandler,true, serviceMethod, args, nil)
 		if pCall.Err != nil {
 			err = pCall.Err
 		}
@@ -444,7 +455,7 @@ func (handler *RpcHandler) goRpc(processor IRpcProcessor, bCast bool, nodeId int
 	return err
 }
 
-func (handler *RpcHandler) callRpc(nodeId int, serviceMethod string, args interface{}, reply interface{}) error {
+func (handler *RpcHandler) callRpc(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, reply interface{}) error {
 	var pClientList [maxClusterNode]*Client
 	err, count := handler.funcRpcClient(nodeId, serviceMethod, pClientList[:])
 	if err != nil {
@@ -460,7 +471,7 @@ func (handler *RpcHandler) callRpc(nodeId int, serviceMethod string, args interf
 	}
 
 	pClient := pClientList[0]
-	pCall := pClient.Go(handler.rpcHandler,false, serviceMethod, args, reply)
+	pCall := pClient.Go(timeout,handler.rpcHandler,false, serviceMethod, args, reply)
 
 	err = pCall.Done().Err
 	pClient.RemovePending(pCall.Seq)
@@ -468,24 +479,24 @@ func (handler *RpcHandler) callRpc(nodeId int, serviceMethod string, args interf
 	return err
 }
 
-func (handler *RpcHandler) asyncCallRpc(nodeId int, serviceMethod string, args interface{}, callback interface{}) error {
+func (handler *RpcHandler) asyncCallRpc(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, callback interface{}) (CancelRpc,error) {
 	fVal := reflect.ValueOf(callback)
 	if fVal.Kind() != reflect.Func {
 		err := errors.New("call " + serviceMethod + " input callback param is error!")
 		log.SError(err.Error())
-		return err
+		return emptyCancelRpc,err
 	}
 
 	if fVal.Type().NumIn() != 2 {
 		err := errors.New("call " + serviceMethod + " callback param function is error!")
 		log.SError(err.Error())
-		return err
+		return emptyCancelRpc,err
 	}
 
 	if fVal.Type().In(0).Kind() != reflect.Ptr || fVal.Type().In(1).String() != "error" {
 		err := errors.New("call " + serviceMethod + " callback param function is error!")
 		log.SError(err.Error())
-		return err
+		return emptyCancelRpc,err
 	}
 
 	reply := reflect.New(fVal.Type().In(0).Elem()).Interface()
@@ -501,23 +512,19 @@ func (handler *RpcHandler) asyncCallRpc(nodeId int, serviceMethod string, args i
 		}
 		fVal.Call([]reflect.Value{reflect.ValueOf(reply), reflect.ValueOf(err)})
 		log.SError("Call serviceMethod is error:", err.Error())
-		return nil
+		return emptyCancelRpc,nil
 	}
 
 	if count > 1 {
 		err := errors.New("cannot call more then 1 node")
 		fVal.Call([]reflect.Value{reflect.ValueOf(reply), reflect.ValueOf(err)})
 		log.SError(err.Error())
-		return nil
+		return emptyCancelRpc,nil
 	}
 
 	//2.rpcClient调用
 	//如果调用本结点服务
-	pClient := pClientList[0]
-	pClient.AsyncCall(handler.rpcHandler, serviceMethod, fVal, args, reply)
-
-	
-	return nil
+	return pClientList[0].AsyncCall(timeout,handler.rpcHandler, serviceMethod, fVal, args, reply,false)
 }
 
 func (handler *RpcHandler) GetName() string {
@@ -528,12 +535,29 @@ func (handler *RpcHandler) IsSingleCoroutine() bool {
 	return handler.rpcHandler.IsSingleCoroutine()
 }
 
+func (handler *RpcHandler) CallWithTimeout(timeout time.Duration,serviceMethod string, args interface{}, reply interface{}) error {
+	return handler.callRpc(timeout,0, serviceMethod, args, reply)
+}
+
+func (handler *RpcHandler) CallNodeWithTimeout(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, reply interface{})  error{
+	return handler.callRpc(timeout,nodeId, serviceMethod, args, reply)
+}
+
+func (handler *RpcHandler) AsyncCallWithTimeout(timeout time.Duration,serviceMethod string, args interface{}, callback interface{})  (CancelRpc,error){
+	return handler.asyncCallRpc(timeout,0, serviceMethod, args, callback)
+}
+
+func (handler *RpcHandler) AsyncCallNodeWithTimeout(timeout time.Duration,nodeId int, serviceMethod string, args interface{}, callback interface{})  (CancelRpc,error){
+	return handler.asyncCallRpc(timeout,nodeId, serviceMethod, args, callback)
+}
+
 func (handler *RpcHandler) AsyncCall(serviceMethod string, args interface{}, callback interface{}) error {
-	return handler.asyncCallRpc(0, serviceMethod, args, callback)
+	_,err := handler.asyncCallRpc(DefaultRpcTimeout,0, serviceMethod, args, callback)
+	return err
 }
 
 func (handler *RpcHandler) Call(serviceMethod string, args interface{}, reply interface{}) error {
-	return handler.callRpc(0, serviceMethod, args, reply)
+	return handler.callRpc(DefaultRpcTimeout,0, serviceMethod, args, reply)
 }
 
 func (handler *RpcHandler) Go(serviceMethod string, args interface{}) error {
@@ -541,11 +565,13 @@ func (handler *RpcHandler) Go(serviceMethod string, args interface{}) error {
 }
 
 func (handler *RpcHandler) AsyncCallNode(nodeId int, serviceMethod string, args interface{}, callback interface{}) error {
-	return handler.asyncCallRpc(nodeId, serviceMethod, args, callback)
+	_,err:= handler.asyncCallRpc(DefaultRpcTimeout,nodeId, serviceMethod, args, callback)
+
+	return err
 }
 
 func (handler *RpcHandler) CallNode(nodeId int, serviceMethod string, args interface{}, reply interface{}) error {
-	return handler.callRpc(nodeId, serviceMethod, args, reply)
+	return handler.callRpc(DefaultRpcTimeout,nodeId, serviceMethod, args, reply)
 }
 
 func (handler *RpcHandler) GoNode(nodeId int, serviceMethod string, args interface{}) error {
diff --git a/rpc/rpctimer.go b/rpc/rpctimer.go
new file mode 100644
index 0000000..77ab59c
--- /dev/null
+++ b/rpc/rpctimer.go
@@ -0,0 +1,89 @@
+package rpc
+
+import (
+	"container/heap"
+	"time"
+)
+
+type CallTimer struct {
+	SeqId    uint64
+	FireTime int64
+}
+
+type CallTimerHeap struct {
+	callTimer   []CallTimer
+	mapSeqIndex map[uint64]int
+}
+
+func (h *CallTimerHeap) Init() {
+	h.mapSeqIndex = make(map[uint64]int, 4096)
+	h.callTimer = make([]CallTimer, 0, 4096)
+}
+
+func (h *CallTimerHeap) Len() int {
+	return len(h.callTimer)
+}
+
+func (h *CallTimerHeap) Less(i, j int) bool {
+	return h.callTimer[i].FireTime < h.callTimer[j].FireTime
+}
+
+func (h *CallTimerHeap) Swap(i, j int) {
+	h.callTimer[i], h.callTimer[j] = h.callTimer[j], h.callTimer[i]
+	h.mapSeqIndex[h.callTimer[i].SeqId] = i
+	h.mapSeqIndex[h.callTimer[j].SeqId] = j
+}
+
+func (h *CallTimerHeap) Push(t any) {
+	callTimer := t.(CallTimer)
+	h.mapSeqIndex[callTimer.SeqId] = len(h.callTimer)
+	h.callTimer = append(h.callTimer, callTimer)
+}
+
+func (h *CallTimerHeap) Pop() any {
+	l := len(h.callTimer)
+	seqId := h.callTimer[l-1].SeqId
+
+	h.callTimer = h.callTimer[:l-1]
+	delete(h.mapSeqIndex, seqId)
+	return seqId
+}
+
+func (h *CallTimerHeap) Cancel(seq uint64) bool {
+	index, ok := h.mapSeqIndex[seq]
+	if ok == false {
+		return false
+	}
+
+	heap.Remove(h, index)
+	return true
+}
+
+func (h *CallTimerHeap) AddTimer(seqId uint64,d time.Duration){
+	heap.Push(h, CallTimer{
+		SeqId:    seqId,
+		FireTime: time.Now().Add(d).UnixNano(),
+	})
+}
+
+func (h *CallTimerHeap) PopTimeout() uint64 {
+	if h.Len() == 0 {
+		return 0
+	}
+
+	nextFireTime := h.callTimer[0].FireTime
+	if nextFireTime > time.Now().UnixNano() {
+		return 0
+	}
+
+	return heap.Pop(h).(uint64)
+}
+
+func (h *CallTimerHeap) PopFirst() uint64 {
+	if h.Len() == 0 {
+		return 0
+	}
+	
+	return heap.Pop(h).(uint64)
+}
+
diff --git a/rpc/server.go b/rpc/server.go
index 6487e98..47be5be 100644
--- a/rpc/server.go
+++ b/rpc/server.go
@@ -277,11 +277,10 @@ func (server *Server) myselfRpcHandlerGo(client *Client,handlerName string, serv
 	return rpcHandler.CallMethod(client,serviceMethod, args,callBack, reply)
 }
 
-
-
-func (server *Server) selfNodeRpcHandlerGo(processor IRpcProcessor, client *Client, noReply bool, handlerName string, rpcMethodId uint32, serviceMethod string, args interface{}, reply interface{}, rawArgs []byte) *Call {
+func (server *Server) selfNodeRpcHandlerGo(timeout time.Duration,processor IRpcProcessor, client *Client, noReply bool, handlerName string, rpcMethodId uint32, serviceMethod string, args interface{}, reply interface{}, rawArgs []byte) *Call {
 	pCall := MakeCall()
 	pCall.Seq = client.generateSeq()
+	pCall.TimeOut = timeout
 
 	rpcHandler := server.rpcHandleFinder.FindRpcHandler(handlerName)
 	if rpcHandler == nil {
@@ -372,12 +371,12 @@ func (server *Server) selfNodeRpcHandlerGo(processor IRpcProcessor, client *Clie
 	return pCall
 }
 
-func (server *Server) selfNodeRpcHandlerAsyncGo(client *Client, callerRpcHandler IRpcHandler, noReply bool, handlerName string, serviceMethod string, args interface{}, reply interface{}, callback reflect.Value) error {
+func (server *Server) selfNodeRpcHandlerAsyncGo(timeout time.Duration,client *Client, callerRpcHandler IRpcHandler, noReply bool, handlerName string, serviceMethod string, args interface{}, reply interface{}, callback reflect.Value,cancelable bool) (CancelRpc,error)  {
 	rpcHandler := server.rpcHandleFinder.FindRpcHandler(handlerName)
 	if rpcHandler == nil {
 		err := errors.New("service method " + serviceMethod + " not config!")
 		log.SError(err.Error())
-		return err
+		return emptyCancelRpc,err
 	}
 
 	_, processor := GetProcessorType(args)
@@ -385,22 +384,28 @@ func (server *Server) selfNodeRpcHandlerAsyncGo(client *Client, callerRpcHandler
 	if err != nil {
 		errM := errors.New("RpcHandler " + handlerName + "."+serviceMethod+" deep copy inParam is error:" + err.Error())
 		log.SError(errM.Error())
-		return errM
+		return emptyCancelRpc,errM
 	}
 
 	req := MakeRpcRequest(processor, 0, 0, serviceMethod, noReply, nil)
 	req.inParam = iParam
 	req.localReply = reply
 
+	cancelRpc := emptyCancelRpc
+	var callSeq uint64
 	if noReply == false {
-		callSeq := client.generateSeq()
+		callSeq = client.generateSeq()
 		pCall := MakeCall()
 		pCall.Seq = callSeq
 		pCall.rpcHandler = callerRpcHandler
 		pCall.callback = &callback
 		pCall.Reply = reply
 		pCall.ServiceMethod = serviceMethod
+		pCall.TimeOut = timeout
 		client.AddPending(pCall)
+		rpcCancel :=  RpcCancel{CallSeq: callSeq,Cli: client}
+		cancelRpc = rpcCancel.CancelRpc
+
 		req.requestHandle = func(Returns interface{}, Err RpcError) {
 			v := client.RemovePending(callSeq)
 			if v == nil {
@@ -426,8 +431,11 @@ func (server *Server) selfNodeRpcHandlerAsyncGo(client *Client, callerRpcHandler
 	err = rpcHandler.PushRpcRequest(req)
 	if err != nil {
 		ReleaseRpcRequest(req)
-		return err
+		if callSeq > 0 {
+			client.RemovePending(callSeq)
+		}
+		return emptyCancelRpc,err
 	}
 
-	return nil
+	return cancelRpc,nil
 }
diff --git a/util/timer/timer.go b/util/timer/timer.go
index 7746624..08ee52b 100644
--- a/util/timer/timer.go
+++ b/util/timer/timer.go
@@ -7,6 +7,7 @@ import (
 	"reflect"
 	"runtime"
 	"time"
+	"sync/atomic"
 )
 
 // ITimer
@@ -29,7 +30,7 @@ type OnAddTimer func(timer ITimer)
 // Timer
 type Timer struct {
 	Id             uint64
-	cancelled      bool          //是否关闭
+	cancelled      int32          //是否关闭
 	C              chan ITimer   //定时器管道
 	interval       time.Duration // 时间间隔（用于循环定时器）
 	fireTime       time.Time     // 触发时间
@@ -171,12 +172,12 @@ func (t *Timer) GetInterval() time.Duration {
 }
 
 func (t *Timer) Cancel() {
-	t.cancelled = true
+	atomic.StoreInt32(&t.cancelled,1)
 }
 
 // 判断定时器是否已经取消
 func (t *Timer) IsActive() bool {
-	return !t.cancelled
+	return atomic.LoadInt32(&t.cancelled) == 0
 }
 
 func (t *Timer) GetName() string {