数据库连接池(Database Connection Pooling)在程序初始化时创建一定数量的数据库连接对象并将其保存在一块内存区中,它允许应用程序重复使用一个现有的数据库连接,而不是重新建立一个;释放空闲时间超过最大空闲时间的数据库连接以避免因为没有释放数据库连接而引起的数据库连接遗漏。 即在程序初始化的时候创建一定数量
python database connection pooling working A memory cache of database connections, called a connection pool, is maintained by a connection pooling module as a layer on top of any Database driver product to facilitate connection reuse. Connection pooling is performed in the background and does not...
importmysql.connectorfrommysql.connectorimportpooling# 创建连接池dbconfig={"database":"your_database","user":"your_username","password":"your_password","host":"localhost",}connection_pool=pooling.MySQLConnectionPool(pool_name="mypool",pool_size=5,**dbconfig)defget_data(query):try:# 从连接池...
To create a connection pool explicitly: Create a MySQLConnectionPool object (see Section 10.3, “pooling.MySQLConnectionPool Class”): dbconfig = { "database": "test", "user": "joe" } cnxpool = mysql.connector.pooling.MySQLConnectionPool(pool_name = "mypool", pool_size = 3, **db...
connector import pooling # 创建数据库连接池 pool = mysql.connector.pooling.MySQLConnectionPool(pool_name='my_pool', pool_size=5, host='localhost', user='your_username', password='your_password', database='your_database') # 从连接池中获取连接 conn = pool.get_connection() # 执行数据库...
database：要连接并进行操作的数据库名称 minConnection：指定最少创建的连接对象数量，即下限 max...
As you know, creating a PostgreSQL database connection is expensive, i.e., it is a resource-heavy and time-consuming process. Using Connection Pooling, we canreduce the request and response timeof database-centric applications in Python. Let see how to implement the connection pool in Python...
"database": "test", "user": "joe" } cnxpool = mysql.connector.pooling.MySQLConnectionPool(pool_name = "mypool", pool_size = 3, **dbconfig) To request a connection from the pool, use itsget_connection()method: cnx1 = cnxpool.get_connection() ...
Database Resident Connection Pooling is a new feature of Oracle Database 11g. It is useful for short lived scripts such as typically used by web applications. It allows the number of connections to be scaled as web site usage grows. It allows multiple Apache processes on multiple machines to...
地址', 'port': '数据库端口', 'user': '用户名', 'password': '密码', 'database': '数据库名', 'charset': 'utf8mb4', # 设置字符集 'pool_name': 'my_pool', # 连接池名称 'pool_size': 5, # 连接池大小,即最大连接数 } cnxpool = mysql.connector.pooling.MySQLConnectionPool(**...