diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 096941f..173ee83 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -75,7 +75,6 @@
             cls.os.compute_security_group_rules_client)
         cls.security_groups_client = cls.os.compute_security_groups_client
         cls.quotas_client = cls.os.quotas_client
-        cls.quota_classes_client = cls.os.quota_classes_client
         cls.compute_networks_client = cls.os.compute_networks_client
         cls.limits_client = cls.os.limits_client
         cls.volumes_extensions_client = cls.os.volumes_extensions_client
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 7035401..c48367f 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -96,7 +96,7 @@
     def test_delete_non_existent_image(self):
         # Return an error while trying to delete a non-existent image
 
-        non_existent_image_id = '11a22b9-12a9-5555-cc11-00ab112223fa'
+        non_existent_image_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.client.delete_image,
                           non_existent_image_id)
 
@@ -110,9 +110,9 @@
     @test.idempotent_id('924540c3-f1f1-444c-8f58-718958b6724e')
     def test_delete_image_non_hex_string_id(self):
         # Return an error while trying to delete an image with non hex id
-        image_id = '11a22b9-120q-5555-cc11-00ab112223gj'
+        invalid_image_id = data_utils.rand_uuid()[:-1] + "j"
         self.assertRaises(lib_exc.NotFound, self.client.delete_image,
-                          image_id)
+                          invalid_image_id)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('68e2c175-bd26-4407-ac0f-4ea9ce2139ea')
@@ -122,7 +122,8 @@
 
     @test.attr(type=['negative'])
     @test.idempotent_id('b340030d-82cd-4066-a314-c72fb7c59277')
-    def test_delete_image_id_is_over_35_character_limit(self):
+    def test_delete_image_with_id_over_character_limit(self):
         # Return an error while trying to delete image with id over limit
+        invalid_image_id = data_utils.rand_uuid() + "1"
         self.assertRaises(lib_exc.NotFound, self.client.delete_image,
-                          '11a22b9-12a9-5555-cc11-00ab112223fa-3fac')
+                          invalid_image_id)
diff --git a/tempest/api/compute/images/test_images_oneserver_negative.py b/tempest/api/compute/images/test_images_oneserver_negative.py
index d9b80e1..039283a 100644
--- a/tempest/api/compute/images/test_images_oneserver_negative.py
+++ b/tempest/api/compute/images/test_images_oneserver_negative.py
@@ -69,11 +69,6 @@
             raise cls.skipException(skip_msg)
 
     @classmethod
-    def setup_credentials(cls):
-        cls.prepare_instance_network()
-        super(ImagesOneServerNegativeTestJSON, cls).setup_credentials()
-
-    @classmethod
     def setup_clients(cls):
         super(ImagesOneServerNegativeTestJSON, cls).setup_clients()
         cls.client = cls.compute_images_client
diff --git a/tempest/api/compute/servers/test_device_tagging.py b/tempest/api/compute/servers/test_device_tagging.py
index 9acc2b1..7252e1b 100644
--- a/tempest/api/compute/servers/test_device_tagging.py
+++ b/tempest/api/compute/servers/test_device_tagging.py
@@ -21,7 +21,7 @@
 from tempest.common.utils.linux import remote_client
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 
diff --git a/tempest/api/compute/servers/test_server_personality.py b/tempest/api/compute/servers/test_server_personality.py
index 6688849..ab291b4 100644
--- a/tempest/api/compute/servers/test_server_personality.py
+++ b/tempest/api/compute/servers/test_server_personality.py
@@ -123,7 +123,7 @@
             path = '/test' + str(i) + '.txt'
             person.append({
                 'path': path,
-                'contents': base64.encode_as_text(file_contents),
+                'contents': base64.encode_as_text(file_contents + str(i)),
             })
         password = data_utils.rand_password()
         created_server = self.create_test_server(personality=person,
diff --git a/tempest/api/identity/admin/v3/test_endpoints.py b/tempest/api/identity/admin/v3/test_endpoints.py
index 50cf258..655e4ef 100644
--- a/tempest/api/identity/admin/v3/test_endpoints.py
+++ b/tempest/api/identity/admin/v3/test_endpoints.py
@@ -23,7 +23,6 @@
     @classmethod
     def setup_clients(cls):
         super(EndPointsTestJSON, cls).setup_clients()
-        cls.identity_client = cls.client
         cls.client = cls.endpoints_client
 
     @classmethod
diff --git a/tempest/api/identity/admin/v3/test_endpoints_negative.py b/tempest/api/identity/admin/v3/test_endpoints_negative.py
index b16605e..f0f8707 100644
--- a/tempest/api/identity/admin/v3/test_endpoints_negative.py
+++ b/tempest/api/identity/admin/v3/test_endpoints_negative.py
@@ -25,7 +25,6 @@
     @classmethod
     def setup_clients(cls):
         super(EndpointsNegativeTestJSON, cls).setup_clients()
-        cls.identity_client = cls.client
         cls.client = cls.endpoints_client
 
     @classmethod
diff --git a/tempest/api/image/v2/test_images_metadefs_schema.py b/tempest/api/image/v2/test_images_metadefs_schema.py
new file mode 100644
index 0000000..7edf1af
--- /dev/null
+++ b/tempest/api/image/v2/test_images_metadefs_schema.py
@@ -0,0 +1,81 @@
+# Copyright 2016 EasyStack.
+# All Rights Reserved.
+#
+#    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.
+
+from tempest.api.image import base
+from tempest import test
+
+
+class MetadataSchemaTest(base.BaseV2ImageTest):
+    """Test to get metadata schema"""
+
+    @test.idempotent_id('e9e44891-3cb8-3b40-a532-e0a39fea3dab')
+    def test_get_metadata_namespace_schema(self):
+        # Test to get namespace schema
+        body = self.schemas_client.show_schema("metadefs/namespace")
+        self.assertEqual("namespace", body['name'])
+
+    @test.idempotent_id('ffe44891-678b-3ba0-a3e2-e0a3967b3aeb')
+    def test_get_metadata_namespaces_schema(self):
+        # Test to get namespaces schema
+        body = self.schemas_client.show_schema("metadefs/namespaces")
+        self.assertEqual("namespaces", body['name'])
+
+    @test.idempotent_id('fde34891-678b-3b40-ae32-e0a3e67b6beb')
+    def test_get_metadata_resource_type_schema(self):
+        # Test to get resource_type schema
+        body = self.schemas_client.show_schema("metadefs/resource_type")
+        self.assertEqual("resource_type_association", body['name'])
+
+    @test.idempotent_id('dfe4a891-b38b-3bf0-a3b2-e03ee67b3a3a')
+    def test_get_metadata_resources_types_schema(self):
+        # Test to get resource_types schema
+        body = self.schemas_client.show_schema("metadefs/resource_types")
+        self.assertEqual("resource_type_associations", body['name'])
+
+    @test.idempotent_id('dff4a891-b38b-3bf0-a3b2-e03ee67b3a3b')
+    def test_get_metadata_object_schema(self):
+        # Test to get object schema
+        body = self.schemas_client.show_schema("metadefs/object")
+        self.assertEqual("object", body['name'])
+
+    @test.idempotent_id('dee4a891-b38b-3bf0-a3b2-e03ee67b3a3c')
+    def test_get_metadata_objects_schema(self):
+        # Test to get objects schema
+        body = self.schemas_client.show_schema("metadefs/objects")
+        self.assertEqual("objects", body['name'])
+
+    @test.idempotent_id('dae4a891-b38b-3bf0-a3b2-e03ee67b3a3d')
+    def test_get_metadata_property_schema(self):
+        # Test to get property schema
+        body = self.schemas_client.show_schema("metadefs/property")
+        self.assertEqual("property", body['name'])
+
+    @test.idempotent_id('dce4a891-b38b-3bf0-a3b2-e03ee67b3a3e')
+    def test_get_metadata_properties_schema(self):
+        # Test to get properties schema
+        body = self.schemas_client.show_schema("metadefs/properties")
+        self.assertEqual("properties", body['name'])
+
+    @test.idempotent_id('dde4a891-b38b-3bf0-a3b2-e03ee67b3a3e')
+    def test_get_metadata_tag_schema(self):
+        # Test to get tag schema
+        body = self.schemas_client.show_schema("metadefs/tag")
+        self.assertEqual("tag", body['name'])
+
+    @test.idempotent_id('cde4a891-b38b-3bf0-a3b2-e03ee67b3a3a')
+    def test_get_metadata_tags_schema(self):
+        # Test to get tags schema
+        body = self.schemas_client.show_schema("metadefs/tags")
+        self.assertEqual("tags", body['name'])
diff --git a/tempest/api/object_storage/base.py b/tempest/api/object_storage/base.py
index 1b1ffd1..52b0a9c 100644
--- a/tempest/api/object_storage/base.py
+++ b/tempest/api/object_storage/base.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import time
+
 from tempest.common import custom_matchers
 from tempest import config
 from tempest.lib.common.utils import data_utils
@@ -102,6 +104,10 @@
         The containers should be visible from the container_client given.
         Will not throw any error if the containers don't exist.
         Will not check that object and container deletions succeed.
+        After delete all the objects from a container, it will wait 2
+        seconds before delete the container itself, in order to deployments
+        using HA proxy sync the deletion properly, otherwise, the container
+        might fail to be deleted because it's not empty.
 
         :param container_client: if None, use cls.container_client, this means
             that the default testing user will be used (see 'username' in
@@ -121,6 +127,9 @@
                 for obj in objlist:
                     test_utils.call_and_ignore_notfound_exc(
                         object_client.delete_object, cont, obj['name'])
+                # sleep 2 seconds to sync the deletion of the objects
+                # in HA deployment
+                time.sleep(2)
                 container_client.delete_container(cont)
             except lib_exc.NotFound:
                 pass
diff --git a/tempest/api/object_storage/test_container_services_negative.py b/tempest/api/object_storage/test_container_services_negative.py
index e6c53ec..df91325 100644
--- a/tempest/api/object_storage/test_container_services_negative.py
+++ b/tempest/api/object_storage/test_container_services_negative.py
@@ -13,11 +13,16 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import testtools
+
 from tempest.api.object_storage import base
+from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions
 from tempest import test
 
+CONF = config.CONF
+
 
 class ContainerNegativeTest(base.BaseObjectTest):
 
@@ -25,12 +30,16 @@
     def resource_setup(cls):
         super(ContainerNegativeTest, cls).resource_setup()
 
-        # use /info to get default constraints
-        _, body = cls.account_client.list_extensions()
-        cls.constraints = body['swift']
+        if CONF.object_storage_feature_enabled.discoverability:
+            # use /info to get default constraints
+            _, body = cls.account_client.list_extensions()
+            cls.constraints = body['swift']
 
     @test.attr(type=["negative"])
     @test.idempotent_id('30686921-4bed-4764-a038-40d741ed4e78')
+    @testtools.skipUnless(
+        CONF.object_storage_feature_enabled.discoverability,
+        'Discoverability function is disabled')
     def test_create_container_name_exceeds_max_length(self):
         # Attempts to create a container name that is longer than max
         max_length = self.constraints['max_container_name_length']
@@ -44,6 +53,9 @@
 
     @test.attr(type=["negative"])
     @test.idempotent_id('41e645bf-2e68-4f84-bf7b-c71aa5cd76ce')
+    @testtools.skipUnless(
+        CONF.object_storage_feature_enabled.discoverability,
+        'Discoverability function is disabled')
     def test_create_container_metadata_name_exceeds_max_length(self):
         # Attempts to create container with metadata name
         # that is longer than max.
@@ -58,6 +70,9 @@
 
     @test.attr(type=["negative"])
     @test.idempotent_id('81e36922-326b-4b7c-8155-3bbceecd7a82')
+    @testtools.skipUnless(
+        CONF.object_storage_feature_enabled.discoverability,
+        'Discoverability function is disabled')
     def test_create_container_metadata_value_exceeds_max_length(self):
         # Attempts to create container with metadata value
         # that is longer than max.
@@ -72,6 +87,9 @@
 
     @test.attr(type=["negative"])
     @test.idempotent_id('ac666539-d566-4f02-8ceb-58e968dfb732')
+    @testtools.skipUnless(
+        CONF.object_storage_feature_enabled.discoverability,
+        'Discoverability function is disabled')
     def test_create_container_metadata_exceeds_overall_metadata_count(self):
         # Attempts to create container with metadata that exceeds the
         # default count
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 318eb10..64543fb 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -169,27 +169,28 @@
     return body, servers
 
 
-def shelve_server(client, server_id, force_shelve_offload=False):
+def shelve_server(servers_client, server_id, force_shelve_offload=False):
     """Common wrapper utility to shelve server.
 
     This method is a common wrapper to make server in 'SHELVED'
     or 'SHELVED_OFFLOADED' state.
 
+    :param servers_clients: Compute servers client instance.
     :param server_id: Server to make in shelve state
     :param force_shelve_offload: Forcefully offload shelve server if it
                                  is configured not to offload server
                                  automatically after offload time.
     """
-    client.shelve_server(server_id)
+    servers_client.shelve_server(server_id)
 
     offload_time = CONF.compute.shelved_offload_time
     if offload_time >= 0:
-        waiters.wait_for_server_status(client, server_id,
+        waiters.wait_for_server_status(servers_client, server_id,
                                        'SHELVED_OFFLOADED',
                                        extra_timeout=offload_time)
     else:
-        waiters.wait_for_server_status(client, server_id, 'SHELVED')
+        waiters.wait_for_server_status(servers_client, server_id, 'SHELVED')
         if force_shelve_offload:
-            client.shelve_offload_server(server_id)
-            waiters.wait_for_server_status(client, server_id,
+            servers_client.shelve_offload_server(server_id)
+            waiters.wait_for_server_status(servers_client, server_id,
                                            'SHELVED_OFFLOADED')
diff --git a/tempest/scenario/test_minimum_basic.py b/tempest/scenario/test_minimum_basic.py
index 3ac6759..f2f17d2 100644
--- a/tempest/scenario/test_minimum_basic.py
+++ b/tempest/scenario/test_minimum_basic.py
@@ -16,8 +16,8 @@
 from tempest.common import custom_matchers
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common.utils import test_utils
+from tempest.lib import exceptions
 from tempest.scenario import manager
 from tempest import test
 
diff --git a/tempest/scenario/test_server_basic_ops.py b/tempest/scenario/test_server_basic_ops.py
index 3aab2b8..2d2f7df 100644
--- a/tempest/scenario/test_server_basic_ops.py
+++ b/tempest/scenario/test_server_basic_ops.py
@@ -18,8 +18,8 @@
 
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
 from tempest.lib.common.utils import test_utils
+from tempest.lib import exceptions
 from tempest.scenario import manager
 from tempest import test
 
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index db5e009..46aebfe 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -148,10 +148,13 @@
 
         # create a 3rd instance from snapshot
         LOG.info("Creating third instance from snapshot: %s" % snapshot['id'])
-        volume = self.create_volume(snapshot_id=snapshot['id'])
+        volume = self.create_volume(snapshot_id=snapshot['id'],
+                                    size=snapshot['size'])
+        LOG.info("Booting third instance from snapshot")
         server_from_snapshot = (
             self._boot_instance_from_volume(volume['id'],
                                             keypair, security_group))
+        LOG.info("Booted third instance %s", server_from_snapshot)
 
         # check the content of written file
         LOG.info("Logging into third instance to get timestamp: %s" %