diff --git a/server/imserver_new/cache/cachemgr.go b/server/imserver_new/cache/cachemgr.go
index 8fd84d3a..6bd44788 100644
--- a/server/imserver_new/cache/cachemgr.go
+++ b/server/imserver_new/cache/cachemgr.go
@@ -9,13 +9,20 @@ import (
 	"main/constant"
 )
 
+type pendingUser struct {
+	accountId string
+	reqTime int64
+}
+
 type cacheMgr struct {
 	lock sync.Mutex
 	userHash map[string]*userProfile
+	pendingHash map[string]*pendingUser
 }
 
 func (this *cacheMgr) Init() {
 	this.userHash = make(map[string]*userProfile)
+	this.pendingHash = make(map[string]*pendingUser)
 }
 
 func (this *cacheMgr) UnInit() {
@@ -67,6 +74,7 @@ func (this *cacheMgr) AsyncSearch(sinceId int64, q string,
 				u.avatarUrl = pg.Rows.GetByName("avatar")
 				u.head = pg.Rows.GetByName("head")
 				u.lastLoginTime = q5.ToInt32(pg.Rows.GetByName("last_login_time"))
+				u.lastSyncTime = f5.GetApp().GetNowMillis()
 				this.userHash[u.accountId] = u
 				*q5.NewSliceElement(&users) = u.accountId
 
diff --git a/server/imserver_new/cache/user_profile.go b/server/imserver_new/cache/user_profile.go
index 5fcd8e6c..9250c5fd 100644
--- a/server/imserver_new/cache/user_profile.go
+++ b/server/imserver_new/cache/user_profile.go
@@ -16,6 +16,7 @@ type userProfile struct {
 	totalWinTimes int32
 	rank int32
 	lastLoginTime int32
+	lastSyncTime int64
 }
 
 func (this *userProfile) GetAccountId() string {