diff --git a/requirements.txt b/requirements.txt
index adeefc31..741e429e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,21 +1,24 @@
-astroid<1.4.0 # breaks pylint 1.4.4
-setuptools>=16.0
-pbr>=1.6
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+astroid<1.4.0 # LGPL # breaks pylint 1.4.4
+setuptools>=16.0 # PSF/ZPL
+pbr>=1.6 # Apache-2.0
 python-swiftclient>=2.2.0 # Apache-2.0
-python-keystoneclient>=1.6.0,!=1.8.0
-python-cinderclient>=1.3.1
-python-glanceclient>=1.2.0 # Apache-2.0
-python-novaclient>=2.29.0,!=2.33.0 # Apache-2.0
-python-openstackclient>=2.0.0 # Apache-2.0
-oslo.utils>=3.2.0
-oslo.i18n>=1.5.0 # Apache-2.0
-oslo.log>=1.14.0
-oslo.config>=3.2.0  # Apache-2.0
+python-keystoneclient!=1.8.0,!=2.1.0,>=1.6.0 # Apache-2.0
+python-cinderclient>=1.3.1 # Apache-2.0
+python-glanceclient>=2.0.0 # Apache-2.0
+python-novaclient!=2.33.0,>=2.29.0 # Apache-2.0
+python-openstackclient>=2.1.0 # Apache-2.0
+oslo.utils>=3.5.0 # Apache-2.0
+oslo.i18n>=2.1.0 # Apache-2.0
+oslo.log>=1.14.0 # Apache-2.0
+oslo.config>=3.7.0 # Apache-2.0
 
-PyMySQL>=0.6.2  # MIT License
-pymongo>=3.0.2
-paramiko>=1.13.0
+PyMySQL>=0.6.2 # MIT License
+pymongo!=3.1,>=3.0.2 # Apache-2.0
+paramiko>=1.16.0 # LGPL
 six>=1.9.0 # MIT
 
 # Not in global-requirements
-apscheduler
+apscheduler # MIT License
diff --git a/setup.py b/setup.py
index 0eacc1fe..782bb21f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,21 +1,29 @@
-#(c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
+# Copyright (c) 2013 Hewlett-Packard Development Company, L.P.
 #
-#Licensed under the Apache License, Version 2.0 (the "License");
-#you may not use this file except in compliance with the License.
-#You may obtain a copy of the License at
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
 #    http://www.apache.org/licenses/LICENSE-2.0
 #
-#Unless required by applicable law or agreed to in writing, software
-#distributed under the License is distributed on an "AS IS" BASIS,
-#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#See the License for the specific language governing permissions and
-#limitations under the License.
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
-from setuptools import setup
+# THIS FILE IS MANAGED BY THE GLOBAL REQUIREMENTS REPO - DO NOT EDIT
+import setuptools
 
-setup(
-    setup_requires='pbr',
-    pbr=True
-)
+# In python < 2.7.4, a lazy loading of package `pbr` will break
+# setuptools if some other modules registered functions in `atexit`.
+# solution from: http://bugs.python.org/issue15881#msg170215
+try:
+    import multiprocessing  # noqa
+except ImportError:
+    pass
 
+setuptools.setup(
+    setup_requires=['pbr>=1.8'],
+    pbr=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 801c1a71..c7c96a97 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,14 +1,17 @@
-flake8>=2.2.4,<=2.4.1
-hacking>=0.10.2,<0.11
-coverage>=3.6
-discover
-mock>=1.2
+# The order of packages is significant, because pip processes them in the order
+# of appearance. Changing the order has an impact on the overall integration
+# process, which may cause wedges in the gate later.
+flake8<2.6.0,>2.4.1 # MIT
+hacking<0.11,>=0.10.2
+coverage>=3.6 # Apache-2.0
+discover # BSD
+mock>=1.2 # BSD
 pylint==1.4.5 # GNU GPL v2
-python-subunit>=0.0.18
-sphinx>=1.1.2,!=1.2.0,!=1.3b1,<1.3 # BSD
-oslosphinx>=2.5.0,!=3.4.0 # Apache-2.0
-testrepository>=0.0.18
-testtools>=1.4.0
+python-subunit>=0.0.18 # Apache-2.0/BSD
+sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
+oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
+testrepository>=0.0.18 # Apache-2.0/BSD
+testtools>=1.4.0 # MIT
 
 # Tempest Plugin
-tempest-lib>=0.14.0  # Apache-2.0
+tempest-lib>=0.14.0 # Apache-2.0