配置连接池

.env

@@ -6,6 +6,8 @@ PG_PORT=5432
 PG_USER=postgres
 PG_PASSWORD=feAeyR0u2fJGSS5ooFdHnSbyHQNY4WlV
 PG_DB=postgres
+PG_POOL_SIZE=10
+PG_MAX_OVERFLOW=10
 
 # MySQL（业务库）
 DB_HOST=8.163.14.142
@@ -13,6 +15,11 @@ DB_PORT=30006
 DB_USER=root
 DB_PASSWORD=^CgDatabase2020
 DB_NAME=offerpie
+MYSQL_POOL_SIZE=10
+MYSQL_MAX_OVERFLOW=10
+
+# 连接池获取连接等待超时（秒），两库共用
+DB_POOL_TIMEOUT=30
 
 
 # AI 供应商

.env.prod

@@ -6,6 +6,8 @@ PG_PORT=5432
 PG_USER=postgres
 PG_PASSWORD=feAeyR0u2fJGSS5ooFdHnSbyHQNY4WlV
 PG_DB=postgres
+PG_POOL_SIZE=10
+PG_MAX_OVERFLOW=10
 
 # MySQL（业务库）
 DB_HOST=8.163.14.142
@@ -13,6 +15,11 @@ DB_PORT=30006
 DB_USER=root
 DB_PASSWORD=^CgDatabase2020
 DB_NAME=offerpie
+MYSQL_POOL_SIZE=10
+MYSQL_MAX_OVERFLOW=10
+
+# 连接池获取连接等待超时（秒），两库共用
+DB_POOL_TIMEOUT=30
 
 
 # AI 供应商

.env.test

@@ -6,6 +6,8 @@ PG_PORT=5432
 PG_USER=postgres
 PG_PASSWORD=feAeyR0u2fJGSS5ooFdHnSbyHQNY4WlV
 PG_DB=postgres
+PG_POOL_SIZE=10
+PG_MAX_OVERFLOW=10
 
 # MySQL（业务库）
 DB_HOST=192.168.31.105
@@ -13,6 +15,11 @@ DB_PORT=3306
 DB_USER=root
 DB_PASSWORD=123456
 DB_NAME=offerpie
+MYSQL_POOL_SIZE=10
+MYSQL_MAX_OVERFLOW=10
+
+# 连接池获取连接等待超时（秒），两库共用
+DB_POOL_TIMEOUT=30
 
 
 # AI 供应商

app/config/settings.py

@@ -14,7 +14,7 @@ class Settings(BaseSettings):
     pg_password: str = ""
     pg_db: str = "postgres"
     pg_pool_size: int = 10
-    pg_max_overflow: int = 20
+    pg_max_overflow: int = 10
 
     # ──────────── MySQL（业务库）────────────
     db_host: str = "192.168.31.105"
@@ -23,7 +23,10 @@ class Settings(BaseSettings):
     db_password: str = "123456"
     db_name: str = "offerpie"
     mysql_pool_size: int = 10
-    mysql_max_overflow: int = 20
+    mysql_max_overflow: int = 10
+
+    # 连接池获取连接的等待超时（秒），两个数据源共用
+    db_pool_timeout: int = 30
 
     # ──────────── AI 供应商 ────────────
     # 火山引擎（OpenAI 兼容风格）

app/core/database.py

@@ -39,7 +39,9 @@ async def init_db() -> None:
         settings.pg_url,
         pool_size=settings.pg_pool_size,
         max_overflow=settings.pg_max_overflow,
+        pool_timeout=settings.db_pool_timeout,
         pool_recycle=3600,
+        pool_pre_ping=True,
         echo=False,
     )
     _pg_session_factory = async_sessionmaker(_pg_engine, expire_on_commit=False)
@@ -48,7 +50,9 @@ async def init_db() -> None:
         settings.mysql_url,
         pool_size=settings.mysql_pool_size,
         max_overflow=settings.mysql_max_overflow,
+        pool_timeout=settings.db_pool_timeout,
         pool_recycle=3600,
+        pool_pre_ping=True,
         echo=False,
     )
     _mysql_session_factory = async_sessionmaker(_mysql_engine, expire_on_commit=False)