diff --git a/cluster.go b/cluster.go
index db8c45c..09cb949 100644
--- a/cluster.go
+++ b/cluster.go
@@ -70,7 +70,11 @@ func InitCluster(ctx context.Context, red redis.UniversalClient, keyPrefix strin
 
 	ctx, cancel := context.WithCancel(ctx)
 
-	U, _ := uuid.NewV7()
+	U, err := uuid.NewV7()
+	if err != nil {
+		op.logger.Errorf(ctx, "InitCluster uuid.NewV7 err:%v, using fallback", err)
+		U = uuid.New()
+	}
 
 	clu := &Cluster{
 		ctx:            ctx,
@@ -204,7 +208,7 @@ func (l *Cluster) startDaemon() {
 }
 
 func (l *Cluster) cleanExecuteInfoLoop() {
-	l.wg.Done()
+	defer l.wg.Done()
 
 	ticker := time.NewTicker(time.Minute * 5)
 	defer ticker.Stop()
@@ -224,10 +228,11 @@ func (l *Cluster) cleanExecuteInfoLoop() {
 }
 
 // 清除过期任务
-func (l *Cluster) cleanExecuteInfo() error {
+func (l *Cluster) cleanExecuteInfo() {
 	// 移除执行信息
-	l.redis.ZRemRangeByScore(l.ctx, l.executeInfoKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Minute).UnixMilli(), 10)).Err()
-	return nil
+	if err := l.redis.ZRemRangeByScore(l.ctx, l.executeInfoKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Minute).UnixMilli(), 10)).Err(); err != nil {
+		l.logger.Errorf(l.ctx, "cleanExecuteInfo ZRemRangeByScore err:%v", err)
+	}
 }
 
 // scheduleTasks 调度任务（只有leader执行）
@@ -449,7 +454,11 @@ func (l *Cluster) calculateNextTimes() {
 
 	// 根据内部注册的任务列表计算下一次执行的时间
 	l.workerList.Range(func(key, value interface{}) bool {
-		val := value.(timerStr)
+		val, ok := value.(timerStr)
+		if !ok {
+			l.logger.Errorf(l.ctx, "Cluster calculateNextTimes invalid type in workerList for key:%v", key)
+			return true
+		}
 
 		nextTime, err := GetNextTime(time.Now().In(l.location), *val.JobData)
 		if err != nil {
@@ -539,7 +548,7 @@ func (c *Cluster) executeTasks() {
 		case <-c.ctx.Done():
 			return
 		case c.workerChan <- struct{}{}:
-			func() {
+			go func() {
 				defer func() {
 					<-c.workerChan
 				}()
@@ -553,7 +562,6 @@ func (c *Cluster) executeTasks() {
 				if err != nil {
 					if err != redis.Nil {
 						c.logger.Errorf(c.ctx, "Failed to pop task: %v", err)
-						// Redis 异常，休眠一会儿
 						time.Sleep(5 * time.Second)
 					}
 					return
@@ -561,22 +569,16 @@ func (c *Cluster) executeTasks() {
 
 				if len(taskID) < 2 {
 					c.logger.Errorf(c.ctx, "Invalid BLPop result: %v", taskID)
-					// 数据异常，继续下一个
 					return
 				}
 
-				go c.processTask(taskID[1])
+				c.processTask(taskID[1])
 			}()
 		}
 	}
 
 }
 
-type ReJobData struct {
-	TaskId string
-	Times  int
-}
-
 // 执行任务
 func (l *Cluster) processTask(taskId string) {
 
@@ -585,7 +587,11 @@ func (l *Cluster) processTask(taskId string) {
 	ctx, cancel := context.WithTimeout(l.ctx, l.timeout)
 	defer cancel()
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		l.logger.Errorf(ctx, "processTask uuid.NewV7 err:%v, using fallback", err)
+		u = uuid.New()
+	}
 
 	ctx = context.WithValue(ctx, "trace_id", u.String())
 
@@ -593,10 +599,12 @@ func (l *Cluster) processTask(taskId string) {
 
 	// 上报执行情况
 	executeVal := fmt.Sprintf("tid:%s|insId:%s|uuid:%s|time:%s", taskId, l.instanceId, u.String(), begin.Format(time.RFC3339Nano))
-	l.redis.ZAdd(ctx, l.executeInfoKey, redis.Z{
+	if err := l.redis.ZAdd(ctx, l.executeInfoKey, redis.Z{
 		Score:  float64(begin.UnixMilli()),
 		Member: executeVal,
-	})
+	}).Err(); err != nil {
+		l.logger.Errorf(ctx, "processTask ZAdd executeInfo err:%v", err)
+	}
 
 	val, ok := l.workerList.Load(taskId)
 	if !ok {
diff --git a/heartbeat/heartbeat.go b/heartbeat/heartbeat.go
index e4330a1..e67e15b 100644
--- a/heartbeat/heartbeat.go
+++ b/heartbeat/heartbeat.go
@@ -150,7 +150,9 @@ func (l *HeartBeat) cleanHeartbeat(cleanSelf bool) error {
 	}
 
 	// 移除心跳
-	l.redis.ZRemRangeByScore(l.ctx, l.heartbeatKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Second).UnixMilli(), 10)).Err()
+	if err := l.redis.ZRemRangeByScore(l.ctx, l.heartbeatKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Second).UnixMilli(), 10)).Err(); err != nil {
+		l.logger.Errorf(l.ctx, "cleanHeartbeat ZRemRangeByScore err:%v", err)
+	}
 
 	return nil
 }
diff --git a/heartbeat/options.go b/heartbeat/options.go
index b2a8c7c..9c69038 100644
--- a/heartbeat/options.go
+++ b/heartbeat/options.go
@@ -17,7 +17,10 @@ type Options struct {
 
 func defaultOptions() Options {
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		u = uuid.New()
+	}
 
 	return Options{
 		logger:     logger.NewLogger(),
diff --git a/leader/leader.go b/leader/leader.go
index eea2e12..f9edbf2 100644
--- a/leader/leader.go
+++ b/leader/leader.go
@@ -111,8 +111,11 @@ func (l *Leader) getLeaderLock() error {
 		l.logger.Errorf(l.ctx, "getLeaderLock err:%+v", err)
 		return err
 	}
-	if b, _ := lock.Lock(); !b {
-		// 加锁失败 非Reader
+	if b, err := lock.Lock(); !b || err != nil {
+		// 加锁失败 非Leader
+		if err != nil {
+			l.logger.Errorf(l.ctx, "getLeaderLock lock.Lock err:%+v", err)
+		}
 		l.leaderLock.Lock()
 		l.isLeader = false
 		l.leaderLock.Unlock()
@@ -152,10 +155,10 @@ func (l *Leader) getLeaderLock() error {
 	// 等待超时退出
 	<-lock.GetCtx().Done()
 
-	// 已过期
-	// l.leaderLock.Lock()
-	// l.isLeader = false
-	// l.leaderLock.Unlock()
+	// 锁已过期，重置leader状态
+	l.leaderLock.Lock()
+	l.isLeader = false
+	l.leaderLock.Unlock()
 
 	return nil
 
diff --git a/leader/options.go b/leader/options.go
index 01ea794..b4992b3 100644
--- a/leader/options.go
+++ b/leader/options.go
@@ -15,7 +15,10 @@ type Options struct {
 
 func defaultOptions() Options {
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		u = uuid.New()
+	}
 
 	return Options{
 		logger:     logger.NewLogger(),
diff --git a/next_time.go b/next_time.go
index 252207e..a5326bf 100644
--- a/next_time.go
+++ b/next_time.go
@@ -240,56 +240,18 @@ func calculateNextCronTime(t time.Time, job JobData) (*time.Time, error) {
 		return nil, ErrCronParser
 	}
 
-	s := *job.CronSchedule
-
-	next := s.Next(t)
+	next := job.CronSchedule.Next(t)
 	return &next, nil
 }
 
-func GetCronSche(CronExpression string, cronParser *cron.Parser) (*cron.Schedule, error) {
+func GetCronSche(CronExpression string, cronParser *cron.Parser) (cron.Schedule, error) {
 	if CronExpression == "" {
 		return nil, ErrCronExpression
 	}
 	if cronParser == nil {
 		return nil, ErrCronParser
 	}
-	sche, err := cronParser.Parse(CronExpression)
-	if err != nil {
-		return nil, err
-	}
-	return &sche, nil
+	return cronParser.Parse(CronExpression)
 }
 
-// 检查是否本周期可以运行
-// 检查是否本周期可以运行（已弃用，使用新的时间比较逻辑）
-// 保留此函数用于向后兼容，但建议使用新的时间计算逻辑
-func canRun(t time.Time, job JobData) bool {
-	targetTime := time.Date(t.Year(), t.Month(), t.Day(), job.Hour, job.Minute, job.Second, 0, t.Location())
 
-	switch job.JobType {
-	case JobTypeEveryMonth:
-		// 对于月任务，需要比较日期
-		targetTime = time.Date(t.Year(), t.Month(), job.Day, job.Hour, job.Minute, job.Second, 0, t.Location())
-		return !targetTime.Before(t)
-	case JobTypeEveryWeek:
-		// 对于周任务，需要比较星期
-		currentWeekday := t.Weekday()
-		if currentWeekday < job.Weekday {
-			return true
-		}
-		if currentWeekday == job.Weekday {
-			return targetTime.After(t) || targetTime.Equal(t)
-		}
-		return false
-	case JobTypeEveryDay:
-		return targetTime.After(t) || targetTime.Equal(t)
-	case JobTypeEveryHour:
-		hourTarget := time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), job.Minute, job.Second, 0, t.Location())
-		return hourTarget.After(t) || hourTarget.Equal(t)
-	case JobTypeEveryMinute:
-		minuteTarget := time.Date(t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), job.Second, 0, t.Location())
-		return minuteTarget.After(t) || minuteTarget.Equal(t)
-	default:
-		return false
-	}
-}
diff --git a/once.go b/once.go
index eee2a04..4c1e1c7 100644
--- a/once.go
+++ b/once.go
@@ -108,7 +108,11 @@ func InitOnce(ctx context.Context, re redis.UniversalClient, keyPrefix string, c
 
 	ctx, cancel := context.WithCancel(ctx)
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		op.logger.Errorf(ctx, "InitOnce uuid.NewV7 err:%v, using fallback", err)
+		u = uuid.New()
+	}
 
 	wo := &Once{
 		ctx:              ctx,
@@ -233,7 +237,7 @@ func (l *Once) startDaemon() {
 }
 
 func (l *Once) cleanExecuteInfoLoop() {
-	l.wg.Done()
+	defer l.wg.Done()
 
 	ticker := time.NewTicker(time.Minute * 5)
 	defer ticker.Stop()
@@ -253,10 +257,11 @@ func (l *Once) cleanExecuteInfoLoop() {
 }
 
 // 清除过期任务
-func (l *Once) cleanExecuteInfo() error {
+func (l *Once) cleanExecuteInfo() {
 	// 移除执行信息
-	l.redis.ZRemRangeByScore(l.ctx, l.executeInfoKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Minute).UnixMilli(), 10)).Err()
-	return nil
+	if err := l.redis.ZRemRangeByScore(l.ctx, l.executeInfoKey, "0", strconv.FormatInt(time.Now().Add(-15*time.Minute).UnixMilli(), 10)).Err(); err != nil {
+		l.logger.Errorf(l.ctx, "cleanExecuteInfo ZRemRangeByScore err:%v", err)
+	}
 }
 
 // 任务调度 领导
@@ -302,7 +307,7 @@ func (l *Once) executeTasks() {
 		case <-l.ctx.Done():
 			return
 		case l.workerChan <- struct{}{}:
-			func() {
+			go func() {
 				defer func() {
 					<-l.workerChan
 				}()
@@ -316,7 +321,6 @@ func (l *Once) executeTasks() {
 				if err != nil {
 					if err != redis.Nil {
 						l.logger.Errorf(l.ctx, "Failed to pop task: %v", err)
-						// Redis 异常，休眠一会儿再重试
 						time.Sleep(time.Second * 5)
 					}
 					return
@@ -324,11 +328,10 @@ func (l *Once) executeTasks() {
 
 				if len(keys) < 2 {
 					l.logger.Errorf(l.ctx, "Invalid task data: %v", keys)
-					// 数据异常，继续下一个
 					return
 				}
 				// 处理任务
-				go l.processTask(keys[1])
+				l.processTask(keys[1])
 			}()
 		}
 	}
@@ -409,7 +412,11 @@ func (w *Once) save(ctx context.Context, jobType jobType, taskType OnceTaskType,
 		RunCount:  runCount,
 		JobType:   jobType,
 	}
-	b, _ := json.Marshal(ed)
+	b, err := json.Marshal(ed)
+	if err != nil {
+		w.logger.Errorf(ctx, "save json.Marshal err:%v taskType:%v taskId:%v", err, taskType, taskId)
+		return err
+	}
 
 	// 使用事务确保原子性
 	pipe := w.redis.TxPipeline()
@@ -424,7 +431,7 @@ func (w *Once) save(ctx context.Context, jobType jobType, taskType OnceTaskType,
 		Score:  float64(nextTime.UnixMilli()),
 		Member: redisKey,
 	})
-	_, err := pipe.Exec(w.ctx)
+	_, err = pipe.Exec(w.ctx)
 	if err != nil {
 		w.logger.Errorf(w.ctx, "save task failed:%v taskType:%v taskId:%v attachData:%v retryCount:%v", err, taskType, taskId, attachData, runCount)
 		return err
@@ -509,8 +516,21 @@ func (w *Once) Delete(taskType OnceTaskType, taskId string) error {
 }
 
 // 获取任务
-func (l *Once) Get(taskType OnceTaskType, taskId string) {
-	//
+func (l *Once) Get(taskType OnceTaskType, taskId string) (any, error) {
+	redisKey := l.buildRedisKey(taskType, taskId)
+	dataKey := fmt.Sprintf("timer:{%s}:once_data:%s", l.keyPrefix, redisKey)
+	str, err := l.redis.Get(l.ctx, dataKey).Result()
+	if err != nil {
+		if errors.Is(err, redis.Nil) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	var ed extendData
+	if err := json.Unmarshal([]byte(str), &ed); err != nil {
+		return nil, err
+	}
+	return ed.Data, nil
 }
 
 // 批量获取任务
@@ -551,7 +571,11 @@ func (l *Once) processTask(key string) {
 	ctx, cancel := context.WithTimeout(l.ctx, l.timeout)
 	defer cancel()
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		l.logger.Errorf(ctx, "processTask uuid.NewV7 err:%v, using fallback", err)
+		u = uuid.New()
+	}
 
 	ctx = context.WithValue(ctx, "trace_id", u.String())
 
@@ -577,10 +601,12 @@ func (l *Once) processTask(key string) {
 
 	// 上报执行情况
 	executeVal := fmt.Sprintf("tid:%s|insId:%s|uuid:%s|time:%s", key, l.instanceId, u.String(), begin.Format(time.RFC3339Nano))
-	l.redis.ZAdd(ctx, l.executeInfoKey, redis.Z{
+	if err := l.redis.ZAdd(ctx, l.executeInfoKey, redis.Z{
 		Score:  float64(begin.UnixMilli()),
 		Member: executeVal,
-	})
+	}).Err(); err != nil {
+		l.logger.Errorf(ctx, "processTask ZAdd executeInfo err:%v", err)
+	}
 
 	defer func() {
 		if err := recover(); err != nil {
@@ -597,7 +623,10 @@ func (l *Once) processTask(key string) {
 	}
 
 	ed := extendData{}
-	json.Unmarshal([]byte(str), &ed)
+	if err := json.Unmarshal([]byte(str), &ed); err != nil {
+		l.logger.Errorf(ctx, "processTask json.Unmarshal err:%v key:%s", err, key)
+		return
+	}
 
 	resp := l.worker.Worker(ctx, taskType, taskId, ed.Data)
 	l.logger.Infof(ctx, "processTask exec key:%s resp:%+v data:%s", key, resp, str)
diff --git a/option.go b/option.go
index c96373c..9fd2aef 100644
--- a/option.go
+++ b/option.go
@@ -123,7 +123,7 @@ func WithMaxRetryCount(count int) Option {
 func WithMaxWorkers(count int) Option {
 	return func(o *Options) {
 		if count < 0 {
-			count = 10
+			count = 100
 		}
 		o.maxWorkers = count
 	}
diff --git a/priority/option.go b/priority/option.go
index bef428f..01b0835 100644
--- a/priority/option.go
+++ b/priority/option.go
@@ -18,7 +18,10 @@ type Options struct {
 
 func defaultOptions() Options {
 
-	u, _ := uuid.NewV7()
+	u, err := uuid.NewV7()
+	if err != nil {
+		u = uuid.New()
+	}
 
 	return Options{
 		getInterval:    time.Second * 2,
@@ -47,7 +50,10 @@ func WithLogger(log logger.Logger) Option {
 
 // 更新周期
 func WithUpdateInterval(d time.Duration) Option {
-	if d.Abs() < time.Second {
+	if d <= 0 {
+		d = time.Second * 5
+	}
+	if d < time.Second {
 		d = time.Second * 5
 	}
 	return func(o *Options) {
diff --git a/priority/priority.go b/priority/priority.go
index 80f360d..e4d82ff 100644
--- a/priority/priority.go
+++ b/priority/priority.go
@@ -182,7 +182,10 @@ func (p *Priority) setPriority() (string, error) {
 
 	// 解析结果
 	if resultMap, ok := result.([]interface{}); ok && len(resultMap) == 1 {
-		resultStr := resultMap[0].(string)
+		resultStr, ok := resultMap[0].(string)
+		if !ok {
+			return "", fmt.Errorf("script unexpected result type: %T", resultMap[0])
+		}
 		return resultStr, nil
 	}
 
diff --git a/types.go b/types.go
index 4c6d77e..9816e5b 100644
--- a/types.go
+++ b/types.go
@@ -41,7 +41,7 @@ type JobData struct {
 	Minute         int            // 每小时的第几分钟
 	Second         int            // 每分钟的第几秒
 	CronExpression string         // cron表达式
-	CronSchedule   *cron.Schedule // cron表达式解析后的数据
+	CronSchedule   cron.Schedule // cron表达式解析后的数据
 }
 
 // 定义各个回调函数