Manipulate redis spopn repeat elements

[bravelionet]

Hello, when I use golang to concurrently operate redis' set type spopN command at around 16000, I have a problem with multiple elements being the same. In the redis official state that spopn will be deleted immediately, and in the java language, I have been verified that there are duplicate elements in concurrent operations using golang, I suspect that either there is no immediate deletion or multiple links get the same element

The getId func repeats

redis config

func Redis() (redisClient *redis.Client) {

client := redis.NewClient(&redis.Options{
	Addr:         global.ServerConfig.Redis.Addr,
	Password:     global.ServerConfig.Redis.Password, 
	DB:           global.ServerConfig.Redis.Db,    
	MinIdleConns: 10,
	PoolSize:     50000,
})
ctx := context.Background()

ping, err := client.Ping(ctx).Result()
if err != nil {
	global.Log.Error("redis start error ", zap.Error(err))
	os.Exit(0)
}
global.Log.Info("redis  start ping result", zap.String("key", ping))
return client

}

Source code example

func test（c *gin.Context{

go getId()

}

func getId(){

result, err := global.Redis.SPopN(context.Background(), global.UniqueIdBuildLockWorkingKey, 1).Result()
if err == nil  {
	return result
}

}
result, err := global.Redis.SPopN(context.Background(), global.UniqueIdBuildLockWorkingKey, size).Result()