From fa14396c09247cbc46408c898b80a55038aa5685 Mon Sep 17 00:00:00 2001
From: Max Wolschlager <comms@meks.io>
Date: Wed, 31 Jul 2024 11:32:42 +0200
Subject: [PATCH] add pool_pre_ping to engine creation options (#103)

---
 ixmp4/data/backend/db.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ixmp4/data/backend/db.py b/ixmp4/data/backend/db.py
index 70ad8799..194958ad 100644
--- a/ixmp4/data/backend/db.py
+++ b/ixmp4/data/backend/db.py
@@ -40,7 +40,7 @@
 
 @lru_cache()
 def cached_create_engine(dsn: str) -> Engine:
-    return create_engine(dsn)
+    return create_engine(dsn, pool_pre_ping=True)
 
 
 class IamcSubobject(BaseIamcSubobject):