diff --git a/management/univention-directory-manager-rest/src/univention/admin/rest/module.py b/management/univention-directory-manager-rest/src/univention/admin/rest/module.py
index d48038f282..c61cbb591d 100755
--- a/management/univention-directory-manager-rest/src/univention/admin/rest/module.py
+++ b/management/univention-directory-manager-rest/src/univention/admin/rest/module.py
@@ -405,6 +405,7 @@ class ResourceBase(object):
 	def parse_authorization(self, authorization):
 		if authorization in self.authenticated:
 			(self.request.user_dn, self.request.username, self.ldap_connection, self.ldap_position) = self.authenticated[authorization]
+			MODULE.warn("[{}] Using cached LDAP connection.".format(os.getpid()))
 			if self.ldap_connection.whoami():
 				return  # the ldap connection is still valid and bound
 		try:
@@ -414,6 +415,7 @@ class ResourceBase(object):
 		except (ValueError, IndexError, binascii.Error):
 			raise HTTPError(400)
 
+		MODULE.warn("[{}] Getting fresh LDAP connection.".format(os.getpid()))
 		lo, po = get_machine_connection(write=False)
 		try:
 			userdn = lo.searchDn(filter_format('(&(objectClass=person)(uid=%s))', [username]), unique=True)[0]
@@ -2540,6 +2542,7 @@ class Object(FormBase, Resource):
 		"""Get a representation of the {} object {} with all its properties, policies, options, metadata and references.
 		Includes also instructions how to modify, remove or move the object.
 		"""
+		MODULE.warn("[{}] Get {}...".format(os.getpid(), object_type))
 		dn = unquote_dn(dn)
 		copy = bool(self.get_query_argument('copy', None))  # TODO: move into own resource: ./copy
 
@@ -2719,6 +2722,7 @@ class Object(FormBase, Resource):
 	@tornado.gen.coroutine
 	def put(self, object_type, dn):
 		"""Modify or move the {} object {}."""
+		MODULE.warn("[{}] Put {}...".format(os.getpid(), object_type))
 		dn = unquote_dn(dn)
 		module = get_module(object_type, dn, self.ldap_connection)
 		if not module:
@@ -2757,6 +2761,7 @@ class Object(FormBase, Resource):
 	@tornado.gen.coroutine
 	def patch(self, object_type, dn):
 		"""Modify partial properties of the {} object {}."""
+		MODULE.warn("[{}] Patch {}...".format(os.getpid(), object_type))
 		dn = unquote_dn(dn)
 		module = get_module(object_type, dn, self.ldap_connection)
 		if not module:
@@ -2786,6 +2791,7 @@ class Object(FormBase, Resource):
 
 	@tornado.gen.coroutine
 	def create(self, object_type, dn=None):
+		MODULE.warn("[{}] Create {}...".format(os.getpid(), object_type))
 		module = self.get_module(object_type)
 		container = self.request.body_arguments['position']
 		superordinate = self.request.body_arguments['superordinate']
@@ -2905,6 +2911,7 @@ class Object(FormBase, Resource):
 	@tornado.gen.coroutine
 	def delete(self, object_type, dn):
 		"""Remove the {} object {}."""
+		MODULE.warn("[{}] Delete {}...".format(os.getpid(), object_type))
 		dn = unquote_dn(dn)
 		module = get_module(object_type, dn, self.ldap_connection)
 		if not module:
@@ -3688,6 +3695,7 @@ class Application(tornado.web.Application):
 			(r"/udm/progress/([a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12})", Operations),
 			# TODO: decorator for dn argument, which makes sure no invalid dn syntax is used
 		], default_handler_class=Nothing, **kwargs)
+		MODULE.warn("[{}] Initialized.".format(os.getpid()))
 
 	def multi_regex(self, chars):
 		# Bug in tornado: requests go against the raw url; https://github.com/tornadoweb/tornado/issues/2548, therefore we must match =, %3d, %3D