diff --git a/apps/settings/utils/ldap.py b/apps/settings/utils/ldap.py
index 3df45bfae..e5ad1c3e8 100644
--- a/apps/settings/utils/ldap.py
+++ b/apps/settings/utils/ldap.py
@@ -117,8 +117,6 @@ class LDAPServerUtil(object):
         return search_filter
 
     def search_user_entries_ou(self, search_ou, paged_cookie=None):
-        logger.info("Search user entries ou: {}, paged_cookie: {}".
-                    format(search_ou, paged_cookie))
         search_filter = self.get_search_filter()
         attributes = list(self.config.attr_map.values())
         ok = self.connection.search(
@@ -136,6 +134,7 @@ class LDAPServerUtil(object):
         user_entries = list()
         search_ous = str(self.config.search_ougroup).split('|')
         for search_ou in search_ous:
+            logger.info("Search user entries ou: {}".format(search_ou))
             self.search_user_entries_ou(search_ou)
             user_entries.extend(self.connection.entries)
             while self.paged_cookie():
diff --git a/apps/users/tasks.py b/apps/users/tasks.py
index 29355514d..45e1c40cd 100644
--- a/apps/users/tasks.py
+++ b/apps/users/tasks.py
@@ -1,10 +1,13 @@
 # -*- coding: utf-8 -*-
 #
 
+import sys
 from celery import shared_task
 from django.conf import settings
 
-from ops.celery.utils import create_or_update_celery_periodic_tasks
+from ops.celery.utils import (
+    create_or_update_celery_periodic_tasks, disable_celery_periodic_task
+)
 from ops.celery.decorator import after_app_ready_start
 from common.utils import get_logger
 from .models import User
@@ -88,6 +91,8 @@ def import_ldap_user_periodic():
     if not settings.AUTH_LDAP:
         return
     if not settings.AUTH_LDAP_SYNC_IS_PERIODIC:
+        task_name = sys._getframe().f_code.co_name
+        disable_celery_periodic_task(task_name)
         return
 
     interval = settings.AUTH_LDAP_SYNC_INTERVAL