去掉数据库连接池

app/api/engine.py

@@ -15,6 +15,7 @@ import sys
 import yaml
 from sqlalchemy import create_engine
 from sqlalchemy.orm import sessionmaker, scoped_session
+from sqlalchemy.pool import NullPool
 
 env = sys.argv[-1]
 work_dir = os.getcwd()
@@ -36,10 +37,7 @@ tamp_product_engine = create_engine(
         password=config[env]['MySQL']['password'],
         charset="utf8"
     ),
-    max_overflow=0,  # 超过连接池大小外最多创建的连接
-    pool_size=100,  # 连接池大小
-    pool_timeout=5,
-    pool_recycle=600
+    poolclass=NullPool
 )
 tamp_order_engine = create_engine(
     'mysql+mysqldb://{user}:{password}@{host}:{port}/{db}?charset={charset}'.format(
@@ -50,10 +48,7 @@ tamp_order_engine = create_engine(
         password=config[env]['MySQL']['password'],
         charset="utf8"
     ),
-    max_overflow=0,  # 超过连接池大小外最多创建的连接
-    pool_size=100,  # 连接池大小
-    pool_timeout=5,
-    pool_recycle=600
+    poolclass=NullPool
 )
 
 tamp_user_engine = create_engine(
@@ -65,10 +60,7 @@ tamp_user_engine = create_engine(
         password=config[env]['MySQL']['password'],
         charset="utf8"
     ),
-    max_overflow=0,  # 超过连接池大小外最多创建的连接
-    pool_size=100,  # 连接池大小
-    pool_timeout=5,
-    pool_recycle=600
+    poolclass=NullPool
 )
 
 tamp_fund_engine = create_engine(
@@ -80,10 +72,7 @@ tamp_fund_engine = create_engine(
         password=config[env]['MySQL']['password'],
         charset="utf8"
     ),
-    max_overflow=0,  # 超过连接池大小外最多创建的连接
-    pool_size=100,  # 连接池大小
-    pool_timeout=5,
-    pool_recycle=600
+    poolclass=NullPool
 )
 
 tamp_diagnose_app_engine = create_engine(
@@ -94,7 +83,8 @@ tamp_diagnose_app_engine = create_engine(
         user=config[env]['MySQL']['user'],
         password=config[env]['MySQL']['password'],
         charset="utf8"
-    )
+    ),
+    poolclass=NullPool
 )