From 61d374ee77b5a607976f31a27cebc2293d0e4513 Mon Sep 17 00:00:00 2001
From: "robinwilliam.hundt" <robinwilliam.hundt@stud.uni-goettingen.de>
Date: Sun, 3 Mar 2019 16:12:19 +0100
Subject: [PATCH] Changed no of gunicorn workers to 5 and type to sync
Using multiprocessing.Lock to synchronize access to creation of Assignment
fixes #130
---
core/views/subscription.py | 14 +++++++++-----
deploy.sh | 4 ++--
requirements.txt | 1 -
3 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/core/views/subscription.py b/core/views/subscription.py
index 266bd647..bf77f467 100644
--- a/core/views/subscription.py
+++ b/core/views/subscription.py
@@ -10,6 +10,8 @@ from core.models import TutorSubmissionAssignment
from core.permissions import IsReviewer, IsTutorOrReviewer
from core.serializers import AssignmentDetailSerializer, AssignmentSerializer
+from multiprocessing import Lock
+
log = logging.getLogger(__name__)
@@ -123,11 +125,13 @@ class AssignmentApiViewSet(
@permission_classes((IsTutorOrReviewer,))
def create(self, request, *args, **kwargs):
- context = self.get_serializer_context()
- serializer = AssignmentDetailSerializer(data=request.data,
- context=context)
- serializer.is_valid(raise_exception=True)
- return self._fetch_assignment(serializer)
+ with Lock():
+ context = self.get_serializer_context()
+ serializer = AssignmentDetailSerializer(data=request.data,
+ context=context)
+ serializer.is_valid(raise_exception=True)
+ assignment = self._fetch_assignment(serializer)
+ return assignment
@permission_classes((IsTutorOrReviewer,))
def retrieve(self, request, *args, **kwargs):
diff --git a/deploy.sh b/deploy.sh
index fd384da7..57022449 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -3,7 +3,7 @@ sleep 1
python manage.py migrate --noinput
gunicorn \
--bind 0.0.0.0:8000 \
- --workers=2 \
- --worker-class=gevent \
+ --workers=5 \
+ --worker-class=sync \
--log-level debug \
grady.wsgi:application
diff --git a/requirements.txt b/requirements.txt
index db9655c0..5f8f6778 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,6 @@ djangorestframework~=3.8
git+https://github.com/robinhundt/djangorestframework-camel-case
Django~=2.1
drf-yasg~=1.12.0
-gevent~=1.3.0
gunicorn~=19.9.0
psycopg2-binary~=2.7.0
python-json-logger~=0.1.0
--
GitLab