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Conditionalize the JIT setting #4835

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merged 1 commit into from
Nov 20, 2024
Merged

Conditionalize the JIT setting #4835

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10 changes: 7 additions & 3 deletions contentcuration/contentcuration/signals.py
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Original file line number Diff line number Diff line change
@@ -1,14 +1,18 @@
from django.db.backends.postgresql.features import DatabaseFeatures
from django.db.backends.signals import connection_created
from django.dispatch import receiver


@receiver(connection_created)
def set_jit(sender, connection, **kwargs):
"""
Disable Just-In-Time compilation for PostgreSQL databases, at least until we can
Disable Just-In-Time compilation for PostgreSQL databases >= 11, at least until we can
optimize its use.
https://www.postgresql.org/docs/12/runtime-config-query.html#GUC-JIT
"""
if connection.vendor == 'postgresql':
with connection.cursor() as cursor:
cursor.execute("SET jit = 'off';")
db_features = DatabaseFeatures(connection)
# JIT is new in v11, and for reference this returns True for v11 and following
if db_features.is_postgresql_11:
with connection.cursor() as cursor:
cursor.execute("SET jit = 'off';")