diff --git a/.zuul.yaml b/.zuul.yaml
index e5e093a..e4e95f2 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -45,6 +45,19 @@
         ENABLE_FILE_INJECTION: true
 
 - job:
+    name: tempest-full-parallel
+    parent: tempest-full
+    voting: false
+    branches:
+      - master
+    description: |
+      Base integration test with Neutron networking and py27.
+      It includes all scenarios as it was in the past.
+      This job runs all scenario tests in parallel!
+    vars:
+      tox_envlist: full-parallel
+
+- job:
     name: tempest-full-py3
     parent: devstack-tempest
     branches:
@@ -175,6 +188,16 @@
               - ^roles/
               - ^.zuul.yaml$
         - nova-multiattach
+        - tempest-full-parallel:
+            irrelevant-files:
+              - ^(test-|)requirements.txt$
+              - ^.*\.rst$
+              - ^doc/.*$
+              - ^etc/.*$
+              - ^releasenotes/.*$
+              - ^setup.cfg$
+              - ^tempest/hacking/.*$
+              - ^tempest/tests/.*$
         - tempest-full-queens:
             irrelevant-files:
               - ^(test-|)requirements.txt$
diff --git a/HACKING.rst b/HACKING.rst
index f961884..bb55ac5 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -363,13 +363,24 @@
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 When adding tests for new features that were not in previous releases of the
-projects the new test has to be properly skipped with a feature flag. Whether
-this is just as simple as using the @utils.requires_ext() decorator to
-check if the required extension (or discoverable optional API) is enabled or
+projects the new test has to be properly skipped with a feature flag. This can
+be just as simple as using the ``@utils.requires_ext()`` or
+``testtools.skipUnless`` decorators to check if the required extension (or
+discoverable optional API) or feature is enabled or can be as difficult as
 adding a new config option to the appropriate section. If there isn't a method
 of selecting the new **feature** from the config file then there won't be a
-mechanism to disable the test with older stable releases and the new test won't
-be able to merge.
+mechanism to disable the test with older stable releases and the new test
+won't be able to merge.
+
+Introduction of a new feature flag requires specifying a default value for
+the corresponding config option that is appropriate in the latest OpenStack
+release. Because Tempest is branchless, the feature flag's default value will
+need to be overridden to a value that is appropriate in earlier releases
+in which the feature isn't available. In DevStack, this can be accomplished
+by modifying Tempest's `lib installation script`_ for previous branches
+(because DevStack is branched).
+
+.. _lib installation script: http://git.openstack.org/cgit/openstack-dev/devstack/tree/lib/tempest
 
 2. Bug fix on core project needing Tempest changes
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tempest/api/compute/admin/test_aggregates_negative.py b/tempest/api/compute/admin/test_aggregates_negative.py
index 6df8410..a6e0efa 100644
--- a/tempest/api/compute/admin/test_aggregates_negative.py
+++ b/tempest/api/compute/admin/test_aggregates_negative.py
@@ -27,15 +27,16 @@
     def setup_clients(cls):
         super(AggregatesAdminNegativeTestJSON, cls).setup_clients()
         cls.client = cls.os_admin.aggregates_client
-        cls.hyper_client = cls.os_admin.hypervisor_client
+        cls.services_client = cls.os_admin.services_client
 
     @classmethod
     def resource_setup(cls):
         super(AggregatesAdminNegativeTestJSON, cls).resource_setup()
         cls.aggregate_name_prefix = 'test_aggregate'
 
-        hyper_list = cls.hyper_client.list_hypervisors()['hypervisors']
-        cls.hosts = [v['hypervisor_hostname'] for v in hyper_list
+        svc_list = cls.services_client.list_services(
+            binary='nova-compute')['services']
+        cls.hosts = [v['host'] for v in svc_list
                      if v['status'] == 'enabled' and v['state'] == 'up']
 
     def _create_test_aggregate(self):
diff --git a/tempest/api/compute/admin/test_floating_ips_bulk.py b/tempest/api/compute/admin/test_floating_ips_bulk.py
index ba19937..72d09ed 100644
--- a/tempest/api/compute/admin/test_floating_ips_bulk.py
+++ b/tempest/api/compute/admin/test_floating_ips_bulk.py
@@ -31,6 +31,7 @@
     API documentation - http://docs.openstack.org/api/openstack-compute/2/
     content/ext-os-floating-ips-bulk.html
     """
+    max_microversion = '2.35'
 
     @classmethod
     def setup_clients(cls):
diff --git a/tempest/api/compute/test_tenant_networks.py b/tempest/api/compute/test_tenant_networks.py
index b55e2c0..f4eada0 100644
--- a/tempest/api/compute/test_tenant_networks.py
+++ b/tempest/api/compute/test_tenant_networks.py
@@ -18,6 +18,7 @@
 
 
 class ComputeTenantNetworksTest(base.BaseV2ComputeTest):
+    max_microversion = '2.35'
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/volume/test_volumes_extend.py b/tempest/api/volume/test_volumes_extend.py
index 54052ae..362f4cc 100644
--- a/tempest/api/volume/test_volumes_extend.py
+++ b/tempest/api/volume/test_volumes_extend.py
@@ -32,7 +32,7 @@
     @decorators.idempotent_id('9a36df71-a257-43a5-9555-dc7c88e66e0e')
     def test_volume_extend(self):
         # Extend Volume Test.
-        volume = self.create_volume()
+        volume = self.create_volume(image_ref=self.image_ref)
         extend_size = volume['size'] + 1
         self.volumes_client.extend_volume(volume['id'],
                                           new_size=extend_size)
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index dcd3518..52114bc 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -41,16 +41,19 @@
     def test_snapshot_create_delete_with_volume_in_use(self):
         # Create a test instance
         server = self.create_server()
-        self.attach_volume(server['id'], self.volume_origin['id'])
+        # NOTE(zhufl) Here we create volume from self.image_ref for adding
+        # coverage for "creating snapshot from non-blank volume".
+        volume = self.create_volume(image_ref=self.image_ref)
+        self.attach_volume(server['id'], volume['id'])
 
         # Snapshot a volume which attached to an instance with force=False
         self.assertRaises(lib_exc.BadRequest, self.create_snapshot,
-                          self.volume_origin['id'], force=False)
+                          volume['id'], force=False)
 
         # Snapshot a volume attached to an instance
-        snapshot1 = self.create_snapshot(self.volume_origin['id'], force=True)
-        snapshot2 = self.create_snapshot(self.volume_origin['id'], force=True)
-        snapshot3 = self.create_snapshot(self.volume_origin['id'], force=True)
+        snapshot1 = self.create_snapshot(volume['id'], force=True)
+        snapshot2 = self.create_snapshot(volume['id'], force=True)
+        snapshot3 = self.create_snapshot(volume['id'], force=True)
 
         # Delete the snapshots. Some snapshot implementations can take
         # different paths according to order they are deleted.
diff --git a/tempest/scenario/test_aggregates_basic_ops.py b/tempest/scenario/test_aggregates_basic_ops.py
index f762995..b515639 100644
--- a/tempest/scenario/test_aggregates_basic_ops.py
+++ b/tempest/scenario/test_aggregates_basic_ops.py
@@ -37,7 +37,7 @@
         super(TestAggregatesBasicOps, cls).setup_clients()
         # Use admin client by default
         cls.aggregates_client = cls.os_admin.aggregates_client
-        cls.hyper_client = cls.os_admin.hypervisor_client
+        cls.services_client = cls.os_admin.services_client
 
     def _create_aggregate(self, **kwargs):
         aggregate = (self.aggregates_client.create_aggregate(**kwargs)
@@ -51,9 +51,10 @@
         return aggregate
 
     def _get_host_name(self):
-        hyper_list = self.hyper_client.list_hypervisors()['hypervisors']
-        self.assertNotEmpty(hyper_list)
-        return hyper_list[0]['hypervisor_hostname']
+        svc_list = self.services_client.list_services(
+            binary='nova-compute')['services']
+        self.assertNotEmpty(svc_list)
+        return svc_list[0]['host']
 
     def _add_host(self, aggregate_id, host):
         aggregate = (self.aggregates_client.add_host(aggregate_id, host=host)
diff --git a/tox.ini b/tox.ini
index 9103175..da0233a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -83,6 +83,16 @@
     tempest run --regex '(?!.*\[.*\bslow\b.*\])(^tempest\.api)' {posargs}
     tempest run --combine --serial --regex '(?!.*\[.*\bslow\b.*\])(^tempest\.scenario)' {posargs}
 
+[testenv:full-parallel]
+envdir = .tox/tempest
+sitepackages = {[tempestenv]sitepackages}
+setenv = {[tempestenv]setenv}
+deps = {[tempestenv]deps}
+# The regex below is used to select all tempest scenario and including the non slow api tests
+commands =
+    find . -type f -name "*.pyc" -delete
+    tempest run --regex '(^tempest\.scenario.*)|(?!.*\[.*\bslow\b.*\])(^tempest\.api)' {posargs}
+
 [testenv:full-serial]
 envdir = .tox/tempest
 sitepackages = {[tempestenv]sitepackages}