Ticket #19117: 0001-Re-connect-database-and-memcached-after-fork.patch

django/core/cache/backends/memcached.py

@@ -2 +2 @@
 
 import time
 from threading import local
+from multiprocessing.util import register_after_fork
 
 from django.core.cache.backends.base import BaseCache, InvalidCacheBackendError
 
@@ -25 +26 @@
         self._lib = library
         self._options = params.get('OPTIONS', None)
 
+        def _after_fork(cache):
+            cache._client = None
+        register_after_fork(self, _after_fork)
+
     @property
     def _cache(self):
         """

django/db/backends/__init__.py

@@ -4 +4 @@
     from django.utils.six.moves import _thread as thread
 except ImportError:
     from django.utils.six.moves import _dummy_thread as thread
+from multiprocessing.util import register_after_fork
 from contextlib import contextmanager
 
 from django.conf import settings
@@ -41 +42 @@
         self._thread_ident = thread.get_ident()
         self.allow_thread_sharing = allow_thread_sharing
 
+        def _after_fork(connection):
+            connection.close()
+
+            connection.transaction_state = []
+            connection.savepoint_state = 0
+            connection._dirty = None
+            connection._thread_ident = thread.get_ident()
+        register_after_fork(self, _after_fork)
+
     def __eq__(self, other):
         return self.alias == other.alias