sqlalchemy.exc.TimeoutError: QueuePool limit of size 5 overflow 10 reached,

sqlacheml 默认连接数为5 加大连接池数量即可解决问题

pool_size=100, max_overflow=20

 engine = create_engine('mysql+pymysql://root:[email protected]/ty_rms_multiple?charset=utf8',
                           pool_recycle=10600, pool_size=100, max_overflow=20)