chore(): some optimizations

src/backend/.env.template

@@ -11,7 +11,8 @@ DJANGO_LANGUAGE_CODE=en-us
 DJANGO_STATIC_URL=static/
 REDIS_URI=
 DJANGO_DB_URI=sqlite:///db.sqlite3
-DJANGO_CONN_MAX_AGE=300
+DJANGO_CONN_MAX_AGE=60
+DJANGO_CONN_HEALTH_CHECKS=True
 DECISION_RESULT_CACHE_TTL_SECONDS=60
 DECISION_WRITE_MODE=sync
 DJANGO_SILKY_ENABLED=False
@@ -47,6 +48,7 @@ GUNICORN_BIND=0.0.0.0:8080
 GUNICORN_WORKER_CLASS=uvicorn_worker.UvicornWorker
 GUNICORN_ACCESS_LOG=-
 GUNICORN_ERROR_LOG=-
+CELERY_WORKER_CONCURRENCY=8
 
 RUN_MIGRATIONS=False
 COLLECT_STATIC=False

src/backend/config/settings/base.py

@@ -104,7 +104,10 @@ DB_URI["ENGINE"] = DB_URI["ENGINE"].replace(
 DATABASES = {
     "default": {
         **DB_URI,
-        "CONN_MAX_AGE": env.int("DJANGO_CONN_MAX_AGE", default=300),
+        "CONN_MAX_AGE": env.int("DJANGO_CONN_MAX_AGE", default=60),
+        "CONN_HEALTH_CHECKS": env.bool(
+            "DJANGO_CONN_HEALTH_CHECKS", default=True
+        ),
     }
 }