参见网址
https://pypi.org/project/django-db-connection-pool/

安装

pip install django-db-connection-pool

修改Django的配置文件

# change django.db.backends.mysql to dj_db_conn_pool.backends.mysql:
DATABASES = {
    'default': {
        ...
        'ENGINE': 'dj_db_conn_pool.backends.mysql'
        ...
    }
}

连接池选项

# 方式一：
DATABASES = {
    'default': {
        ...
        'POOL_OPTIONS' : {
            'POOL_SIZE': 10,
            'MAX_OVERFLOW': 10
        }
        ...
     }
 }
# 方式二：
import dj_db_conn_pool
dj_db_conn_pool.setup(pool_size=100, max_overflow=50)

参数介绍

pool_size: The size of the pool to be maintained, defaults to 5. This is the largest number of connections that will be kept persistently in the pool. Note that the pool begins with no connections; once this number of connections is requested, that number of connections will remain. pool_size can be set to 0 to indicate no size limit; to disable pooling, use a :class:~sqlalchemy.pool.NullPool instead.

max_overflow: The maximum overflow size of the pool. When the number of checked-out connections reaches the size set in pool_size, additional connections will be returned up to this limit. When those additional connections are returned to the pool, they are disconnected and discarded. It follows then that the total number of simultaneous connections the pool will allow is pool_size + max_overflow, and the total number of "sleeping" connections the pool will allow is pool_size. max_overflow can be set to -1 to indicate no overflow limit; no limit will be placed on the total number of concurrent connections. Defaults to 10.