diff --git a/conf.sample.yml b/conf.sample.yml
index fcb73fb..c3b8b7a 100644
--- a/conf.sample.yml
+++ b/conf.sample.yml
@@ -4,5 +4,4 @@ Mysql:
   password: 'my-secret-pw'
   port: '3306'
 
-PreparedExpire: 90 # 单位秒，处于prepared中的任务，过了这个时间，查询结果还是PENDING的话，则会被cancel
 TransCronInterval: 10 # 单位秒 当事务等待这个时间之后，还没有变化，则进行一轮重试处理，包括prepared中的任务和commited的任务
diff --git a/dtmcli/message.go b/dtmcli/message.go
index d1d4aea..75307f1 100644
--- a/dtmcli/message.go
+++ b/dtmcli/message.go
@@ -27,6 +27,7 @@ type MsgStep struct {
 func NewMsg(server string) *Msg {
 	return &Msg{
 		MsgData: MsgData{
+			Gid:       common.GenGid(),
 			TransType: "msg",
 		},
 		Server: server,
@@ -65,6 +66,5 @@ func (s *Msg) Prepare(queryPrepared string) error {
 	if resp.StatusCode() != 200 {
 		return fmt.Errorf("prepare failed: %v", resp.Body())
 	}
-	s.Gid = jsonitor.Get(resp.Body(), "gid").ToString()
 	return nil
 }
diff --git a/dtmcli/tcc.go b/dtmcli/tcc.go
index 6ca0218..daed4f3 100644
--- a/dtmcli/tcc.go
+++ b/dtmcli/tcc.go
@@ -52,7 +52,7 @@ func (t *Tcc) CallBranch(body interface{}, tryUrl string, confirmUrl string, can
 	return common.RestyClient.R().
 		SetBody(&M{
 			"gid":        t.Gid,
-			"branch":     common.GenGid(),
+			"branch_id":  common.GenGid(),
 			"trans_type": "tcc",
 			"status":     "prepared",
 			"data":       string(common.MustMarshal(body)),
@@ -60,5 +60,5 @@ func (t *Tcc) CallBranch(body interface{}, tryUrl string, confirmUrl string, can
 			"confirm":    confirmUrl,
 			"cancel":     cancelUrl,
 		}).
-		Post(t.Dtm + "/registerXaBranch")
+		Post(t.Dtm + "/registerTccBranch")
 }
diff --git a/dtmcli/xa.go b/dtmcli/xa.go
index 034c528..8b6a689 100644
--- a/dtmcli/xa.go
+++ b/dtmcli/xa.go
@@ -33,9 +33,9 @@ func NewXa(server string, mysqlConf map[string]string, app *gin.Engine, callback
 	e2p(err)
 	app.POST(u.Path, common.WrapHandler(func(c *gin.Context) (interface{}, error) {
 		type CallbackReq struct {
-			Gid    string `json:"gid"`
-			Branch string `json:"branch"`
-			Action string `json:"action"`
+			Gid      string `json:"gid"`
+			BranchID string `json:"branch_id"`
+			Action   string `json:"action"`
 		}
 		req := CallbackReq{}
 		b, err := c.GetRawData()
@@ -44,9 +44,9 @@ func NewXa(server string, mysqlConf map[string]string, app *gin.Engine, callback
 		tx, my := common.DbAlone(xa.Conf)
 		defer my.Close()
 		if req.Action == "commit" {
-			tx.Must().Exec(fmt.Sprintf("xa commit '%s'", req.Branch))
+			tx.Must().Exec(fmt.Sprintf("xa commit '%s'", req.BranchID))
 		} else if req.Action == "rollback" {
-			tx.Must().Exec(fmt.Sprintf("xa rollback '%s'", req.Branch))
+			tx.Must().Exec(fmt.Sprintf("xa rollback '%s'", req.BranchID))
 		} else {
 			panic(fmt.Errorf("unknown action: %s", req.Action))
 		}
@@ -57,21 +57,21 @@ func NewXa(server string, mysqlConf map[string]string, app *gin.Engine, callback
 
 func (xa *Xa) XaLocalTransaction(gid string, transFunc XaLocalFunc) (rerr error) {
 	defer common.P2E(&rerr)
-	branch := common.GenGid()
+	branchID := common.GenGid()
 	tx, my := common.DbAlone(xa.Conf)
 	defer func() { my.Close() }()
-	tx.Must().Exec(fmt.Sprintf("XA start '%s'", branch))
+	tx.Must().Exec(fmt.Sprintf("XA start '%s'", branchID))
 	err := transFunc(tx)
 	e2p(err)
 	resp, err := common.RestyClient.R().
-		SetBody(&M{"gid": gid, "branch": branch, "trans_type": "xa", "status": "prepared", "url": xa.CallbackUrl}).
+		SetBody(&M{"gid": gid, "branch_id": branchID, "trans_type": "xa", "status": "prepared", "url": xa.CallbackUrl}).
 		Post(xa.Server + "/registerXaBranch")
 	e2p(err)
 	if !strings.Contains(resp.String(), "SUCCESS") {
 		e2p(fmt.Errorf("unknown server response: %s", resp.String()))
 	}
-	tx.Must().Exec(fmt.Sprintf("XA end '%s'", branch))
-	tx.Must().Exec(fmt.Sprintf("XA prepare '%s'", branch))
+	tx.Must().Exec(fmt.Sprintf("XA end '%s'", branchID))
+	tx.Must().Exec(fmt.Sprintf("XA prepare '%s'", branchID))
 	return nil
 }
 
diff --git a/dtmsvr/api.go b/dtmsvr/api.go
index 1ad9453..e128984 100644
--- a/dtmsvr/api.go
+++ b/dtmsvr/api.go
@@ -39,10 +39,9 @@ func Abort(c *gin.Context) (interface{}, error) {
 	db := dbGet()
 	m := TransFromContext(c)
 	m = TransFromDb(db, m.Gid)
-	if m.TransType != "xa" || m.Status != "prepared" {
-		return nil, fmt.Errorf("unkown trans data. type: %s status: %s for gid: %s", m.TransType, m.Status, m.Gid)
+	if m.TransType != "xa" && m.TransType != "tcc" || m.Status != "prepared" {
+		return nil, fmt.Errorf("unexpected trans data. type: %s status: %s for gid: %s", m.TransType, m.Status, m.Gid)
 	}
-	// 当前xa trans的状态为prepared，直接处理，则是回滚
 	go m.Process(db)
 	return M{"message": "SUCCESS"}, nil
 }
@@ -59,6 +58,8 @@ func RegisterXaBranch(c *gin.Context) (interface{}, error) {
 		DoNothing: true,
 	}).Create(branches)
 	e2p(err)
+	global := TransGlobal{Gid: branch.Gid}
+	global.touch(db, config.TransCronInterval)
 	return M{"message": "SUCCESS"}, nil
 }
 
@@ -67,10 +68,10 @@ func RegisterTccBranch(c *gin.Context) (interface{}, error) {
 	err := c.BindJSON(&data)
 	e2p(err)
 	branch := TransBranch{
-		Gid:    data["gid"],
-		Branch: data["branch_id"],
-		Status: data["status"],
-		Data:   data["data"],
+		Gid:      data["gid"],
+		BranchID: data["branch_id"],
+		Status:   data["status"],
+		Data:     data["data"],
 	}
 
 	branches := []TransBranch{branch, branch, branch}
@@ -83,6 +84,8 @@ func RegisterTccBranch(c *gin.Context) (interface{}, error) {
 		DoNothing: true,
 	}).Create(branches)
 	e2p(err)
+	global := TransGlobal{Gid: branch.Gid}
+	global.touch(dbGet(), config.TransCronInterval)
 	return M{"message": "SUCCESS"}, nil
 }
 
diff --git a/dtmsvr/config.go b/dtmsvr/config.go
index 3047f51..8367059 100644
--- a/dtmsvr/config.go
+++ b/dtmsvr/config.go
@@ -1,13 +1,11 @@
 package dtmsvr
 
 type dtmsvrConfig struct {
-	PreparedExpire    int64 // 单位秒，处于prepared中的任务，过了这个时间，查询结果还是PENDING的话，则会被cancel
 	TransCronInterval int64 // 单位秒 当事务等待这个时间之后，还没有变化，则进行一轮处理，包括prepared中的任务和commited的任务
 	Mysql             map[string]string
 }
 
 var config = &dtmsvrConfig{
-	PreparedExpire:    60,
 	TransCronInterval: 10,
 }
 
diff --git a/dtmsvr/dtmsvr.sql b/dtmsvr/dtmsvr.sql
index d14deb9..bfdf033 100644
--- a/dtmsvr/dtmsvr.sql
+++ b/dtmsvr/dtmsvr.sql
@@ -32,7 +32,7 @@ CREATE TABLE IF NOT EXISTS `trans_branch` (
   `gid` varchar(128) NOT NULL COMMENT '事务全局id',
   `url` varchar(128) NOT NULL COMMENT '动作关联的url',
   `data` TEXT COMMENT '请求所携带的数据',
-  `branch` VARCHAR(128) NOT NULL COMMENT '事务分支名称',
+  `branch_id` VARCHAR(128) NOT NULL COMMENT '事务分支名称',
   `branch_type` varchar(45) NOT NULL COMMENT '事务分支类型 saga_action | saga_compensate | xa',
   `status` varchar(45) NOT NULL COMMENT '步骤的状态 submitted | finished | rollbacked',
   `finish_time` datetime DEFAULT NULL,
@@ -40,7 +40,7 @@ CREATE TABLE IF NOT EXISTS `trans_branch` (
   `create_time` datetime DEFAULT NULL,
   `update_time` datetime DEFAULT NULL,
   PRIMARY KEY (`id`),
-  UNIQUE KEY `gid` (`gid`,`branch`, `branch_type`),
+  UNIQUE KEY `gid` (`gid`,`branch_id`, `branch_type`),
   KEY `create_time` (`create_time`),
   KEY `update_time` (`update_time`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
@@ -49,7 +49,7 @@ drop table IF EXISTS trans_log;
 CREATE TABLE IF NOT EXISTS `trans_log` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `gid` varchar(128) NOT NULL COMMENT '事务全局id',
-  `branch` varchar(128) DEFAULT NULL COMMENT '事务分支',
+  `branch_id` varchar(128) DEFAULT NULL COMMENT '事务分支',
   `action` varchar(45) DEFAULT NULL COMMENT '行为',
   `old_status` varchar(45) NOT NULL DEFAULT '' COMMENT '旧状态',
   `new_status` varchar(45) NOT NULL COMMENT '新状态',
diff --git a/dtmsvr/dtmsvr_test.go b/dtmsvr/dtmsvr_test.go
index 5f98155..75d1afb 100644
--- a/dtmsvr/dtmsvr_test.go
+++ b/dtmsvr/dtmsvr_test.go
@@ -27,7 +27,6 @@ var myinit int = func() int {
 
 func TestViper(t *testing.T) {
 	assert.Equal(t, true, viper.Get("mysql") != nil)
-	assert.Equal(t, int64(90), config.PreparedExpire)
 }
 
 func TestDtmSvr(t *testing.T) {
@@ -50,9 +49,9 @@ func TestDtmSvr(t *testing.T) {
 
 	msgPending(t)
 	msgNormal(t)
-	sagaNormal(t)
 	tccNormal(t)
 	tccRollback(t)
+	sagaNormal(t)
 	xaNormal(t)
 	xaRollback(t)
 	sagaCommittedPending(t)
@@ -155,7 +154,7 @@ func tccRollback(t *testing.T) {
 	e2p(err)
 }
 func msgNormal(t *testing.T) {
-	msg := genMsg("gid-normal-msg")
+	msg := genMsg("gid-msg-normal")
 	msg.Submit()
 	assert.Equal(t, "submitted", getTransStatus(msg.Gid))
 	WaitTransProcessed(msg.Gid)
@@ -164,7 +163,7 @@ func msgNormal(t *testing.T) {
 }
 
 func msgPending(t *testing.T) {
-	msg := genMsg("gid-normal-pending")
+	msg := genMsg("gid-msg-normal-pending")
 	msg.Prepare("")
 	assert.Equal(t, "prepared", getTransStatus(msg.Gid))
 	examples.MainSwitch.CanSubmitResult.SetOnce("PENDING")
diff --git a/dtmsvr/trans.go b/dtmsvr/trans.go
index cce5a48..4eee811 100644
--- a/dtmsvr/trans.go
+++ b/dtmsvr/trans.go
@@ -65,7 +65,7 @@ type TransBranch struct {
 	Gid          string
 	Url          string
 	Data         string
-	Branch       string
+	BranchID     string `json:"branch_id"`
 	BranchType   string
 	Status       string
 	FinishTime   *time.Time
@@ -77,7 +77,7 @@ func (*TransBranch) TableName() string {
 }
 
 func (t *TransBranch) changeStatus(db *common.DB, status string) *gorm.DB {
-	writeTransLog(t.Gid, "branch change", status, t.Branch, "")
+	writeTransLog(t.Gid, "branch change", status, t.BranchID, "")
 	dbr := db.Must().Model(t).Where("status=?", t.Status).Updates(M{
 		"status":      status,
 		"finish_time": time.Now(),
diff --git a/dtmsvr/trans_msg.go b/dtmsvr/trans_msg.go
index b2ad62a..91388e5 100644
--- a/dtmsvr/trans_msg.go
+++ b/dtmsvr/trans_msg.go
@@ -3,9 +3,7 @@ package dtmsvr
 import (
 	"fmt"
 	"strings"
-	"time"
 
-	"github.com/sirupsen/logrus"
 	"github.com/yedf/dtm/common"
 )
 
@@ -24,7 +22,7 @@ func (t *TransMsgProcessor) GenBranches() []TransBranch {
 	for _, step := range steps {
 		branches = append(branches, TransBranch{
 			Gid:        t.Gid,
-			Branch:     common.GenGid(),
+			BranchID:   common.GenGid(),
 			Data:       step["data"].(string),
 			Url:        step["action"].(string),
 			BranchType: "action",
@@ -53,17 +51,10 @@ func (t *TransGlobal) mayQueryPrepared(db *common.DB) {
 	resp, err := common.RestyClient.R().SetQueryParam("gid", t.Gid).Get(t.QueryPrepared)
 	e2p(err)
 	body := resp.String()
-	if strings.Contains(body, "FAIL") {
-		preparedExpire := time.Now().Add(time.Duration(-config.PreparedExpire) * time.Second)
-		logrus.Printf("create time: %s prepared expire: %s ", t.CreateTime.Local(), preparedExpire.Local())
-		status := common.If(t.CreateTime.Before(preparedExpire), "canceled", "prepared").(string)
-		if status != t.Status {
-			t.changeStatus(db, status)
-		} else {
-			t.touch(db, t.NextCronInterval*2)
-		}
-	} else if strings.Contains(body, "SUCCESS") {
+	if strings.Contains(body, "SUCCESS") {
 		t.changeStatus(db, "submitted")
+	} else {
+		t.touch(db, t.NextCronInterval*2)
 	}
 }
 
diff --git a/dtmsvr/trans_saga.go b/dtmsvr/trans_saga.go
index e8de14b..ac69e86 100644
--- a/dtmsvr/trans_saga.go
+++ b/dtmsvr/trans_saga.go
@@ -24,7 +24,7 @@ func (t *TransSagaProcessor) GenBranches() []TransBranch {
 		for _, branchType := range []string{"compensate", "action"} {
 			branches = append(branches, TransBranch{
 				Gid:        t.Gid,
-				Branch:     branch,
+				BranchID:   branch,
 				Data:       step["data"].(string),
 				Url:        step[branchType].(string),
 				BranchType: branchType,
diff --git a/dtmsvr/trans_tcc.go b/dtmsvr/trans_tcc.go
index 5445885..0f0e27c 100644
--- a/dtmsvr/trans_tcc.go
+++ b/dtmsvr/trans_tcc.go
@@ -16,23 +16,7 @@ func init() {
 }
 
 func (t *TransTccProcessor) GenBranches() []TransBranch {
-	branches := []TransBranch{}
-	steps := []M{}
-	common.MustUnmarshalString(t.Data, &steps)
-	for _, step := range steps {
-		branch := common.GenGid()
-		for _, branchType := range []string{"cancel", "confirm", "try"} {
-			branches = append(branches, TransBranch{
-				Gid:        t.Gid,
-				Branch:     branch,
-				Data:       step["data"].(string),
-				Url:        step[branchType].(string),
-				BranchType: branchType,
-				Status:     "prepared",
-			})
-		}
-	}
-	return branches
+	return []TransBranch{}
 }
 
 func (t *TransTccProcessor) ExecBranch(db *common.DB, branch *TransBranch) {
@@ -51,33 +35,15 @@ func (t *TransTccProcessor) ExecBranch(db *common.DB, branch *TransBranch) {
 }
 
 func (t *TransTccProcessor) ProcessOnce(db *common.DB, branches []TransBranch) {
-	if t.Status != "submitted" {
+	if t.Status == "succeed" || t.Status == "failed" {
 		return
 	}
-	current := 0 // 当前正在处理的步骤
-	// 先处理一轮正常try状态
-	for ; current < len(branches); current++ {
-		branch := &branches[current]
-		if branch.BranchType != "try" || branch.Status == "succeed" {
-			continue
-		}
-		if branch.BranchType == "try" && branch.Status == "prepared" {
-			t.ExecBranch(db, branch)
-			if branch.Status != "succeed" {
-				break
-			}
-		} else {
-			break
+	branchType := common.If(t.Status == "submitted", "confirm", "cancel").(string)
+	for current := len(branches) - 1; current >= -1; current-- {
+		if current == -1 { // 已全部处理完
+			t.changeStatus(db, common.If(t.Status == "submitted", "succeed", "failed").(string))
+		} else if branches[current].BranchType == branchType {
+			t.ExecBranch(db, &branches[current])
 		}
 	}
-	// 如果try全部成功，则处理confirm分支，否则处理cancel分支
-	currentType := common.If(current == len(branches), "confirm", "cancel")
-	for current--; current >= 0; current-- {
-		branch := &branches[current]
-		if branch.BranchType != currentType || branch.Status != "prepared" {
-			continue
-		}
-		t.ExecBranch(db, branch)
-	}
-	t.changeStatus(db, common.If(currentType == "confirm", "succeed", "failed").(string))
 }
diff --git a/dtmsvr/trans_xa.go b/dtmsvr/trans_xa.go
index b0ccbfc..ed7d279 100644
--- a/dtmsvr/trans_xa.go
+++ b/dtmsvr/trans_xa.go
@@ -20,9 +20,9 @@ func (t *TransXaProcessor) GenBranches() []TransBranch {
 }
 func (t *TransXaProcessor) ExecBranch(db *common.DB, branch *TransBranch) {
 	resp, err := common.RestyClient.R().SetBody(M{
-		"branch": branch.Branch,
-		"action": common.If(t.Status == "prepared", "rollback", "commit"),
-		"gid":    branch.Gid,
+		"branch_id": branch.BranchID,
+		"action":    common.If(t.Status == "prepared", "rollback", "commit"),
+		"gid":       branch.Gid,
 	}).Post(branch.Url)
 	e2p(err)
 	body := resp.String()
diff --git a/dtmsvr/utils.go b/dtmsvr/utils.go
index 92ce212..ad2b90a 100644
--- a/dtmsvr/utils.go
+++ b/dtmsvr/utils.go
@@ -14,6 +14,7 @@ func dbGet() *common.DB {
 	return common.DbGet(config.Mysql)
 }
 func writeTransLog(gid string, action string, status string, branch string, detail string) {
+	return
 	db := dbGet()
 	if detail == "" {
 		detail = "{}"
diff --git a/examples/main_tcc.go b/examples/main_tcc.go
index b75c1f7..711a716 100644
--- a/examples/main_tcc.go
+++ b/examples/main_tcc.go
@@ -26,7 +26,7 @@ func TccSetup(app *gin.Engine) {
 			return nil, err
 		}
 		req := reqFrom(c)
-		logrus.Printf("Trans in %f here, and Trans in another %f in call2 ", req.Amount/2, req.Amount/2)
+		logrus.Printf("Trans in %d here, and Trans in another %d in call2 ", req.Amount/2, req.Amount/2)
 		_, rerr := tcc.CallBranch(&TransReq{Amount: req.Amount / 2}, Busi+"/TransIn", Busi+"/TransInConfirm", Busi+"/TransInRevert")
 		if rerr != nil {
 			return nil, rerr