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Increase DB engine pool size and max overflow

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As described in #2568 when multiple clients connect simultaneously, an excessive number of database pool connections are created. This leads to resource exhaustion and connection management issues.

We have introduced the pool_size and max_overflow parameters to better control the database connection pool.
These parameters ensure the database can handle a sufficient number of concurrent connections without over-allocating resources.

Added pool_size and max_overflow arguments to the database initialization.

This change overrides the default initialization configuration where the temporary fix was applied.

Co-Authored-By: Ufi <86113085+ufiking@users.noreply.github.com>
This commit is contained in:
Bine 2025-10-17 22:17:10 +02:00
parent 1ed549fdb1
commit 4a059be480
1 changed files with 1 additions and 1 deletions
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gns3server/db/tasks.py
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@ -78,7 +78,7 @@ async def connect_to_db(app: FastAPI) -> None:
db_path = os.path.join(Config.instance().config_dir, "gns3_controller.db")
db_url = os.environ.get("GNS3_DATABASE_URI", f"sqlite+aiosqlite:///{db_path}")
engine = create_async_engine(db_url, connect_args={"check_same_thread": False, "timeout": 20}, future=True)
engine = create_async_engine(db_url, connect_args={"check_same_thread": False, "timeout": 20}, future=True, pool_size=512, max_overflow=1024)
alembic_cfg = config.Config()
alembic_cfg.set_main_option("script_location", "gns3server:db_migrations")
#alembic_cfg.set_main_option('sqlalchemy.url', db_url)