diff --git a/playbooks/legacy/trove-functional-dsvm-mysql/run.yaml b/playbooks/legacy/trove-functional-dsvm-mysql/run.yaml
index d04890e1b8..17dbbcd705 100644
--- a/playbooks/legacy/trove-functional-dsvm-mysql/run.yaml
+++ b/playbooks/legacy/trove-functional-dsvm-mysql/run.yaml
@@ -30,6 +30,7 @@
           cat << 'EOF' >>"/tmp/dg-local.conf"
           [[local|localrc]]
           enable_plugin trove git://git.openstack.org/openstack/trove
+          TROVE_RESIZE_TIME_OUT=1800
 
           EOF
         executable: /bin/bash
@@ -56,6 +57,7 @@
               export DEST=$BASE/new
               export PATH_DEVSTACK_SRC=$DEST/devstack
               cd /opt/stack/new/trove/integration/scripts
+              export TROVE_RESIZE_TIME_OUT=1800
               ./trovestack dsvm-gate-tests mysql
           }
           export -f post_test_hook
diff --git a/trove/tests/api/instances_actions.py b/trove/tests/api/instances_actions.py
index 8a95fe857c..1b83e252f2 100644
--- a/trove/tests/api/instances_actions.py
+++ b/trove/tests/api/instances_actions.py
@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import os
 import time
 
 from proboscis import after_class
@@ -26,6 +27,7 @@ from sqlalchemy.sql.expression import text
 from troveclient.compat.exceptions import BadRequest
 from troveclient.compat.exceptions import HTTPNotImplemented
 
+from trove.common import cfg
 from trove.common.utils import poll_until
 from trove import tests
 from trove.tests.api.instances import assert_unprocessable
@@ -86,7 +88,17 @@ class MySqlConnection(object):
             raise ex
 
 
-TIME_OUT_TIME = 15 * 60
+# Use default value from trove.common.cfg, and it could be overridden by
+# a environment variable when the tests run.
+def get_resize_timeout():
+    value_from_env = os.environ.get("TROVE_RESIZE_TIME_OUT", None)
+    if value_from_env:
+        return int(value_from_env)
+
+    return cfg.CONF.resize_time_out
+
+
+TIME_OUT_TIME = get_resize_timeout()
 USER_WAS_DELETED = False