diff --git a/python/paddle/distributed/launch/context/__init__.py b/python/paddle/distributed/launch/context/__init__.py
index e03d832767e6fac85c242d6563da363f7cbdd4a3..08c8f0835c5e102218e33f2f004a4c8fe82f15a2 100644
--- a/python/paddle/distributed/launch/context/__init__.py
+++ b/python/paddle/distributed/launch/context/__init__.py
@@ -51,7 +51,6 @@ class Context(object):
         legacy_env_list = [
             'DISTRIBUTED_TRAINER_ENDPOINTS',
             'PADDLE_ELASTIC_JOB_ID',
-            'PADDLE_DISTRI_BACKEND',
             'FLAGS_START_PORT',
         ]
 
diff --git a/python/paddle/distributed/launch/controllers/controller.py b/python/paddle/distributed/launch/controllers/controller.py
index 9527ae35c4b6bf852f0eb38bf789e47176a77134..69b2237f0ba7d267c3b297e5afe2fbc69b173869 100644
--- a/python/paddle/distributed/launch/controllers/controller.py
+++ b/python/paddle/distributed/launch/controllers/controller.py
@@ -128,14 +128,15 @@ class ControllerBase(object):
         self.ctx.logger.info("Terminating with signal {}".format(sigint))
 
         if hasattr(self, 'sigint'):
-            time.sleep(5)
+            self.ctx.logger.info("Force quit in 10 seconds...")
+            time.sleep(11)
             sys.exit(sigint)
 
         self.sigint = sigint
         self.ctx.status.done()
         self.stop(sigint)
         time.sleep(1)
-        self.ctx.logger.debug("Exit with signal {}".format(sigint))
+        self.ctx.logger.info("Exit with signal {}".format(sigint))
         sys.exit(sigint)