diff --git a/cmd/main.go b/cmd/main.go
index a6575ff..0b1c30b 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -110,12 +110,12 @@ func (l OnceWorker) Worker(ctx context.Context, taskType timerx.OnceTaskType, ta
 	file.WriteString(fmt.Sprintf("执行时间:%s\n", time.Now().Format("2006-01-02 15:04:05")))
 
 	fmt.Println("执行时间:", time.Now().Format("2006-01-02 15:04:05"))
-	fmt.Println(taskType, taskId)
+	// fmt.Println(taskType, taskId)
 
-	fmt.Printf("原来的参数：%+v %T\n", attachData, attachData)
+	// fmt.Printf("原来的参数：%+v %T\n", attachData, attachData)
 
-	v, ok := attachData.(int64)
-	fmt.Println("vvvvvvv", v, ok)
+	// v, ok := attachData.(int64)
+	// fmt.Println("vvvvvvv", v, ok)
 	// fmt.Printf()
 
 	// d := OnceData{}
diff --git a/once.go b/once.go
index a341b58..86fe7e5 100644
--- a/once.go
+++ b/once.go
@@ -13,6 +13,7 @@ import (
 
 	"github.com/go-redis/redis/v8"
 	"github.com/google/uuid"
+	"github.com/yuninks/lockx"
 	"github.com/yuninks/timerx/heartbeat"
 	"github.com/yuninks/timerx/leader"
 	"github.com/yuninks/timerx/logger"
@@ -335,7 +336,11 @@ func (w *Once) save(taskType OnceTaskType, taskId string, delayTime time.Duratio
 }
 
 // 添加任务(不覆盖)
-func (l *Once) Create(taskType OnceTaskType, taskId string, delayTime time.Duration, attachData interface{}) error {
+func (l *Once) Create(taskType OnceTaskType, taskId string, delayTime time.Duration, attachData any) error {
+	return l.create(taskType, taskId, delayTime, attachData, 0)
+}
+
+func (l *Once) create(taskType OnceTaskType, taskId string, delayTime time.Duration, attachData any, retryCount int) error {
 	if delayTime <= 0 {
 		return fmt.Errorf("delay time must be positive")
 	}
@@ -354,7 +359,7 @@ func (l *Once) Create(taskType OnceTaskType, taskId string, delayTime time.Durat
 		return fmt.Errorf("task already exists")
 	}
 
-	return l.Save(taskType, taskId, delayTime, attachData)
+	return l.save(taskType, taskId, delayTime, attachData, retryCount)
 }
 
 // 删除任务
@@ -428,6 +433,18 @@ func (l *Once) processTask(key string) {
 		return
 	}
 
+	// 这里加一个全局锁
+	lock, err := lockx.NewGlobalLock(ctx, l.redis, key)
+	if err != nil {
+		l.logger.Errorf(ctx, "processTask timer:获取锁失败:%s", taskId)
+		return
+	}
+	if b, err := lock.Lock(); !b {
+		l.logger.Errorf(ctx, "processTask timer:获取锁失败:%s %+v", taskId, err)
+		return
+	}
+	defer lock.Unlock()
+
 	// 上报执行情况
 	executeVal := fmt.Sprintf("%s|%s|%s|%s", key, l.instanceId, u.String(), begin.Format(time.RFC3339Nano))
 	l.redis.ZAdd(ctx, l.executeInfoKey, &redis.Z{
@@ -491,5 +508,6 @@ func (l *Once) handleRetry(ctx context.Context, taskType OnceTaskType, taskId st
 	l.logger.Infof(ctx, "handleRetry retrying task: %s:%s, retry count: %d",
 		taskType, taskId, ed.RetryCount)
 
-	return l.save(taskType, taskId, ed.Delay, ed.Data, ed.RetryCount)
+	// 不覆盖的新建
+	return l.create(taskType, taskId, ed.Delay, ed.Data, ed.RetryCount)
 }