diff --git a/mymysql/mysql.go b/mymysql/mysql.go
index caf8f23..bb04458 100644
--- a/mymysql/mysql.go
+++ b/mymysql/mysql.go
@@ -15,9 +15,9 @@ var (
 	DefaultConfig = &Config{
 		Dsn:         "root:root@tcp(127.0.0.1:3306)/?loc=Local&charset=utf8mb4&parseTime=true",
 		MaxOpenConn: 32,
-		MaxIdleConn: 16,
-		MaxLifeTime: "1h",
-		MaxIdleTime: "10m",
+		MaxIdleConn: 8,
+		MaxLifeTime: "4h",
+		MaxIdleTime: "15m",
 		Debug:       true,
 		GormLogger:  gormLogger.Default.LogMode(gormLogger.Info),
 	}
@@ -37,7 +37,7 @@ type (
 	}
 )
 
-func Instance(key ...string) *gorm.DB {
+func DB(key ...string) *gorm.DB {
 	var key0 string
 
 	if len(key) > 0 {
@@ -139,7 +139,7 @@ func NewGormLogger(writer gormLogger.Writer, gormLoggerConfig gormLogger.Config)
 }
 
 func CloseInstance(key string) {
-	db, _ := Instance(key).DB()
+	db, _ := DB(key).DB()
 	db.Close()
 }
 
diff --git a/mymysql/mysql_test.go b/mymysql/mysql_test.go
index af7b4fb..72d5c61 100644
--- a/mymysql/mysql_test.go
+++ b/mymysql/mysql_test.go
@@ -23,7 +23,7 @@ func TestMysql(t *testing.T) {
 	defer CloseAllInstance()
 
 	var res = make(map[string]interface{})
-	err = Instance().Table("image").Limit(1).Take(&res).Error
+	err = DB().Table("image").Limit(1).Take(&res).Error
 	if err != nil {
 		fmt.Println(err)
 		return
diff --git a/myredis/redis.go b/myredis/redis.go
index 372c067..fd72c3a 100644
--- a/myredis/redis.go
+++ b/myredis/redis.go
@@ -17,8 +17,8 @@ var (
 		DB:          0,
 		PoolSize:    16,
 		MinIdleConn: 4,
-		MaxConnAge:  "1h",
-		IdleTimeout: "10m",
+		MaxConnAge:  "4h",
+		IdleTimeout: "15m",
 	}
 
 	instanceMap = make(map[string]*MyRedis)
@@ -40,7 +40,7 @@ type (
 	}
 )
 
-func Instance(key ...string) *MyRedis {
+func DB(key ...string) *MyRedis {
 	var key0 string
 
 	if len(key) > 0 {
@@ -170,7 +170,7 @@ func (r *MyRedis) SetJson(key string, value interface{}, t ...time.Duration) (st
 }
 
 func CloseInstance(key string) {
-	Instance(key).Client.Close()
+	DB(key).Client.Close()
 }
 
 func CloseAllInstance() {
diff --git a/myredis/redis_test.go b/myredis/redis_test.go
index 2c61744..dd104a6 100644
--- a/myredis/redis_test.go
+++ b/myredis/redis_test.go
@@ -23,14 +23,14 @@ func TestRedis(t *testing.T) {
 	}
 	defer CloseAllInstance()
 
-	set, err := Instance().Set(context.Background(), "name", "qwe123", time.Minute).Result()
+	set, err := DB().Set(context.Background(), "name", "qwe123", time.Minute).Result()
 	if err != nil {
 		fmt.Println(err)
 		return
 	}
 	fmt.Println(set)
 
-	get, err := Instance().Get(context.Background(), "name").Result()
+	get, err := DB().Get(context.Background(), "name").Result()
 	if err != nil {
 		fmt.Println(err)
 		return