diff --git a/.travis.yml b/.travis.yml
index 94d45aa..1ba0f6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,4 +14,4 @@ before_install:
   - go get -t -v ./...
   - go get github.com/mattn/goveralls
 script:
-  - $GOPATH/bin/goveralls -service=travis-ci -ignore="examples/*,dtmgrpc/*.pb.go,bench/*"
+  - $GOPATH/bin/goveralls -service=travis-ci -ignore="examples/*,dtmgrpc/dtmgimp/*.pb.go,bench/*"
diff --git a/dtmgrpc/type.go b/dtmgrpc/type.go
index 1f5f741..2da13b6 100644
--- a/dtmgrpc/type.go
+++ b/dtmgrpc/type.go
@@ -21,3 +21,8 @@ func MustGenGid(grpcServer string) string {
 func SetCurrentDBType(dbType string) {
 	dtmcli.SetCurrentDBType(dbType)
 }
+
+// GetCurrentDBType set the current db type
+func GetCurrentDBType() string {
+	return dtmcli.GetCurrentDBType()
+}
diff --git a/dtmgrpc/type_test.go b/dtmgrpc/type_test.go
index 831357e..aaa477b 100644
--- a/dtmgrpc/type_test.go
+++ b/dtmgrpc/type_test.go
@@ -5,6 +5,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/yedf/dtm/dtmcli"
 )
 
 func TestType(t *testing.T) {
@@ -13,4 +14,8 @@ func TestType(t *testing.T) {
 
 	_, err = TccFromGrpc(context.Background())
 	assert.Error(t, err)
+
+	old := GetCurrentDBType()
+	SetCurrentDBType(dtmcli.DBTypeMysql)
+	SetCurrentDBType(old)
 }
diff --git a/examples/base_http.go b/examples/base_http.go
index 9728dd7..a0638b0 100644
--- a/examples/base_http.go
+++ b/examples/base_http.go
@@ -35,6 +35,16 @@ var Busi string = fmt.Sprintf("http://localhost:%d%s", BusiPort, BusiAPI)
 func BaseAppStartup() *gin.Engine {
 	dtmimp.Logf("examples starting")
 	app := common.GetGinApp()
+	app.Use(func(c *gin.Context) {
+		v := MainSwitch.NextResult.Fetch()
+		if v != "" {
+			c.JSON(200, gin.H{"dtm_result": v})
+			c.Abort()
+			return
+		}
+		c.Next()
+	})
+
 	BaseAddRoute(app)
 	for k, v := range setupFuncs {
 		dtmimp.Logf("initing %s", k)
@@ -73,6 +83,7 @@ type mainSwitchType struct {
 	TransInRevertResult   AutoEmptyString
 	TransOutRevertResult  AutoEmptyString
 	CanSubmitResult       AutoEmptyString
+	NextResult            AutoEmptyString
 }
 
 // MainSwitch controls busi success or fail
diff --git a/test/saga_grpc_test.go b/test/saga_grpc_test.go
index 3f3160d..bcc6ab2 100644
--- a/test/saga_grpc_test.go
+++ b/test/saga_grpc_test.go
@@ -29,6 +29,25 @@ func TestSagaGrpcRollback(t *testing.T) {
 	assert.Equal(t, []string{StatusSucceed, StatusSucceed, StatusSucceed, StatusFailed}, getBranchesStatus(saga.Gid))
 }
 
+func TestSagaGrpcCurrent(t *testing.T) {
+	saga := genSagaGrpc(dtmimp.GetFuncName(), false, false).
+		EnableConcurrent()
+	saga.Submit()
+	waitTransProcessed(saga.Gid)
+	assert.Equal(t, []string{StatusPrepared, StatusSucceed, StatusPrepared, StatusSucceed}, getBranchesStatus(saga.Gid))
+	assert.Equal(t, StatusSucceed, getTransStatus(saga.Gid))
+}
+
+func TestSagaGrpcCurrentOrder(t *testing.T) {
+	saga := genSagaGrpc(dtmimp.GetFuncName(), false, false).
+		EnableConcurrent().
+		AddBranchOrder(1, []int{0})
+	saga.Submit()
+	waitTransProcessed(saga.Gid)
+	assert.Equal(t, []string{StatusPrepared, StatusSucceed, StatusPrepared, StatusSucceed}, getBranchesStatus(saga.Gid))
+	assert.Equal(t, StatusSucceed, getTransStatus(saga.Gid))
+}
+
 func TestSagaGrpcCommittedOngoing(t *testing.T) {
 	saga := genSagaGrpc(dtmimp.GetFuncName(), false, false)
 	examples.MainSwitch.TransOutResult.SetOnce(dtmcli.ResultOngoing)
diff --git a/test/xa_test.go b/test/xa_test.go
index 2916934..0ff6ef2 100644
--- a/test/xa_test.go
+++ b/test/xa_test.go
@@ -92,3 +92,26 @@ func TestXaTimeout(t *testing.T) {
 	assert.Equal(t, StatusFailed, getTransStatus(gid))
 	assert.Equal(t, []string{}, getBranchesStatus(gid))
 }
+
+func TestXaNotTimeout(t *testing.T) {
+	gid := dtmimp.GetFuncName()
+	timeoutChan := make(chan int, 1)
+	err := getXc().XaGlobalTransaction(gid, func(xa *dtmcli.Xa) (*resty.Response, error) {
+		go func() {
+			cronTransOnceForwardNow(0) // not timeout,
+			timeoutChan <- 0
+		}()
+		_ = <-timeoutChan
+		req := examples.GenTransReq(30, false, false)
+		_, err := xa.CallBranch(req, examples.Busi+"/TransOutXa")
+		assert.Nil(t, err)
+		examples.MainSwitch.NextResult.SetOnce(dtmcli.ResultOngoing) // make commit temp error
+		return nil, nil
+	})
+	assert.Nil(t, err)
+	waitTransProcessed(gid)
+	assert.Equal(t, StatusSubmitted, getTransStatus(gid))
+	cronTransOnce()
+	assert.Equal(t, StatusSucceed, getTransStatus(gid))
+	assert.Equal(t, []string{StatusPrepared, StatusSucceed}, getBranchesStatus(gid))
+}