diff --git a/apps/assets/api/node.py b/apps/assets/api/node.py
index 096c65939..b1e01c9c1 100644
--- a/apps/assets/api/node.py
+++ b/apps/assets/api/node.py
@@ -5,11 +5,13 @@ from collections import namedtuple, defaultdict
 from rest_framework import status
 from rest_framework.serializers import ValidationError
 from rest_framework.response import Response
+from rest_framework.decorators import action
 from django.utils.translation import ugettext_lazy as _
 from django.shortcuts import get_object_or_404, Http404
 from django.utils.decorators import method_decorator
 from django.db.models.signals import m2m_changed
 
+from common.const.http import POST
 from common.exceptions import SomeoneIsDoingThis
 from common.const.signals import PRE_REMOVE, POST_REMOVE
 from assets.models import Asset
@@ -19,6 +21,7 @@ from common.const.distributed_lock_key import UPDATE_NODE_TREE_LOCK_KEY
 from orgs.mixins.api import OrgModelViewSet
 from orgs.mixins import generics
 from orgs.lock import org_level_transaction_lock
+from assets.tasks import check_node_assets_amount_period_task
 from ..hands import IsOrgAdmin
 from ..models import Node
 from ..tasks import (
@@ -46,6 +49,11 @@ class NodeViewSet(OrgModelViewSet):
     permission_classes = (IsOrgAdmin,)
     serializer_class = serializers.NodeSerializer
 
+    @action(methods=[POST], detail=False, url_name='launch-check-assets-amount-task')
+    def launch_check_assets_amount_task(self, request):
+        task = check_node_assets_amount_period_task.delay()
+        return Response(data={'task': task.id})
+
     # 仅支持根节点指直接创建，子节点下的节点需要通过children接口创建
     def perform_create(self, serializer):
         child_key = Node.org_root().get_next_child_key()
diff --git a/apps/assets/tasks/nodes_amount.py b/apps/assets/tasks/nodes_amount.py
index 3ae191788..cd929d131 100644
--- a/apps/assets/tasks/nodes_amount.py
+++ b/apps/assets/tasks/nodes_amount.py
@@ -1,13 +1,19 @@
 from celery import shared_task
+from django.utils.translation import gettext_lazy as _
 
 from ops.celery.decorator import register_as_period_task
 from assets.utils import check_node_assets_amount
+
+from common.utils.lock import AcquireFailed
 from common.utils import get_logger
 
 logger = get_logger(__file__)
 
 
-@register_as_period_task(crontab='0 2 * * *')
 @shared_task(queue='celery_heavy_tasks')
-def check_node_assets_amount_celery_task():
-    check_node_assets_amount()
+@register_as_period_task(crontab='0 2 * * *')
+def check_node_assets_amount_period_task():
+    try:
+        check_node_assets_amount()
+    except AcquireFailed:
+        logger.error(_('The task of self-checking is already running and cannot be started repeatedly'))
diff --git a/apps/assets/utils.py b/apps/assets/utils.py
index c4c112c16..2805ac034 100644
--- a/apps/assets/utils.py
+++ b/apps/assets/utils.py
@@ -5,6 +5,7 @@ import time
 from django.db.models import Q
 
 from common.utils import get_logger, dict_get_any, is_uuid, get_object_or_none
+from common.utils.lock import DistributedLock
 from common.http import is_true
 from .models import Asset, Node
 
@@ -12,6 +13,7 @@ from .models import Asset, Node
 logger = get_logger(__file__)
 
 
+@DistributedLock(name="assets.node.check_node_assets_amount", blocking=False)
 def check_node_assets_amount():
     for node in Node.objects.all():
         logger.info(f'Check node assets amount: {node}')
diff --git a/apps/common/utils/inspect.py b/apps/common/utils/inspect.py
new file mode 100644
index 000000000..650d3b434
--- /dev/null
+++ b/apps/common/utils/inspect.py
@@ -0,0 +1,10 @@
+import inspect
+
+
+def copy_function_args(func, locals_dict: dict):
+    signature = inspect.signature(func)
+    keys = signature.parameters.keys()
+    kwargs = {}
+    for k in keys:
+        kwargs[k] = locals_dict.get(k)
+    return kwargs
diff --git a/apps/common/utils/lock.py b/apps/common/utils/lock.py
new file mode 100644
index 000000000..9041a2578
--- /dev/null
+++ b/apps/common/utils/lock.py
@@ -0,0 +1,55 @@
+from functools import wraps
+
+from redis_lock import Lock as RedisLock
+from redis import Redis
+
+from common.utils import get_logger
+from common.utils.inspect import copy_function_args
+from apps.jumpserver.const import CONFIG
+
+logger = get_logger(__file__)
+
+
+class AcquireFailed(RuntimeError):
+    pass
+
+
+class DistributedLock(RedisLock):
+    def __init__(self, name, blocking=True, expire=60*2, auto_renewal=True):
+        """
+        使用 redis 构造的分布式锁
+
+        :param name:
+            锁的名字，要全局唯一
+        :param blocking:
+            该参数只在锁作为装饰器或者 `with` 时有效。
+        :param expire:
+            锁的过期时间，注意不一定是锁到这个时间就释放了，分两种情况
+            当 `auto_renewal=False` 时，锁会释放
+            当 `auto_renewal=True` 时，如果过期之前程序还没释放锁，我们会延长锁的存活时间。
+            这里的作用是防止程序意外终止没有释放锁，导致死锁。
+        """
+        self.kwargs_copy = copy_function_args(self.__init__, locals())
+        redis = Redis(host=CONFIG.REDIS_HOST, port=CONFIG.REDIS_PORT, password=CONFIG.REDIS_PASSWORD)
+        super().__init__(redis_client=redis, name=name, expire=expire, auto_renewal=auto_renewal)
+        self._blocking = blocking
+
+    def __enter__(self):
+        acquired = self.acquire(blocking=self._blocking)
+        if self._blocking and not acquired:
+            raise EnvironmentError("Lock wasn't acquired, but blocking=True")
+        if not acquired:
+            raise AcquireFailed
+        return self
+
+    def __exit__(self, exc_type=None, exc_value=None, traceback=None):
+        self.release()
+
+    def __call__(self, func):
+        @wraps(func)
+        def inner(*args, **kwds):
+            # 要创建一个新的锁对象
+            with self.__class__(**self.kwargs_copy):
+                return func(*args, **kwds)
+
+        return inner
diff --git a/apps/locale/zh/LC_MESSAGES/django.mo b/apps/locale/zh/LC_MESSAGES/django.mo
index 211388dd8..73c802715 100644
Binary files a/apps/locale/zh/LC_MESSAGES/django.mo and b/apps/locale/zh/LC_MESSAGES/django.mo differ
diff --git a/apps/locale/zh/LC_MESSAGES/django.po b/apps/locale/zh/LC_MESSAGES/django.po
index 7ddf14999..1b82453bb 100644
--- a/apps/locale/zh/LC_MESSAGES/django.po
+++ b/apps/locale/zh/LC_MESSAGES/django.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: JumpServer 0.3.3\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2020-12-09 18:14+0800\n"
+"POT-Creation-Date: 2020-12-10 17:04+0800\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: ibuler <ibuler@qq.com>\n"
 "Language-Team: JumpServer team<ibuler@qq.com>\n"
@@ -41,7 +41,7 @@ msgstr "远程应用"
 #: orgs/models.py:23 perms/models/base.py:48 settings/models.py:27
 #: terminal/models.py:28 terminal/models.py:372 terminal/models.py:404
 #: terminal/models.py:441 users/forms/profile.py:20 users/models/group.py:15
-#: users/models/user.py:501 users/templates/users/_select_user_modal.html:13
+#: users/models/user.py:495 users/templates/users/_select_user_modal.html:13
 #: users/templates/users/user_asset_permission.html:37
 #: users/templates/users/user_asset_permission.html:154
 #: users/templates/users/user_database_app_permission.html:36
@@ -94,7 +94,7 @@ msgstr "类型"
 #: assets/models/label.py:23 ops/models/adhoc.py:37 orgs/models.py:26
 #: perms/models/base.py:56 settings/models.py:32 terminal/models.py:38
 #: terminal/models.py:411 terminal/models.py:448 tickets/models/ticket.py:43
-#: users/models/group.py:16 users/models/user.py:534
+#: users/models/group.py:16 users/models/user.py:528
 #: users/templates/users/user_detail.html:115
 #: users/templates/users/user_granted_database_app.html:38
 #: users/templates/users/user_granted_remote_app.html:37
@@ -182,7 +182,7 @@ msgstr "参数"
 #: assets/models/cmd_filter.py:26 assets/models/cmd_filter.py:60
 #: assets/models/group.py:21 common/db/models.py:67 common/mixins/models.py:49
 #: orgs/models.py:24 orgs/models.py:400 perms/models/base.py:54
-#: users/models/user.py:542 users/serializers/group.py:35
+#: users/models/user.py:536 users/serializers/group.py:35
 #: users/templates/users/user_detail.html:97
 #: xpack/plugins/change_auth_plan/models.py:81 xpack/plugins/cloud/models.py:58
 #: xpack/plugins/cloud/models.py:156 xpack/plugins/gathered_user/models.py:30
@@ -237,7 +237,7 @@ msgstr "目标URL"
 #: authentication/forms.py:11
 #: authentication/templates/authentication/login.html:21
 #: authentication/templates/authentication/xpack_login.html:101
-#: ops/models/adhoc.py:148 users/forms/profile.py:19 users/models/user.py:499
+#: ops/models/adhoc.py:148 users/forms/profile.py:19 users/models/user.py:493
 #: users/templates/users/_select_user_modal.html:14
 #: users/templates/users/user_detail.html:53
 #: users/templates/users/user_list.html:15
@@ -251,7 +251,8 @@ msgstr "用户名"
 #: applications/serializers/remote_app.py:71
 #: applications/serializers/remote_app.py:79
 #: applications/serializers/remote_app.py:86 assets/models/base.py:236
-#: assets/serializers/asset_user.py:71 authentication/forms.py:13
+#: assets/serializers/asset_user.py:71 audits/signals_handler.py:42
+#: authentication/forms.py:13
 #: authentication/templates/authentication/login.html:29
 #: authentication/templates/authentication/xpack_login.html:109
 #: users/forms/user.py:22 users/forms/user.py:193
@@ -295,15 +296,15 @@ msgstr "删除失败，存在关联资产"
 msgid "Number required"
 msgstr "需要为数字"
 
-#: assets/api/node.py:58
+#: assets/api/node.py:66
 msgid "You can't update the root node name"
 msgstr "不能修改根节点名称"
 
-#: assets/api/node.py:65
+#: assets/api/node.py:73
 msgid "You can't delete the root node ({})"
 msgstr "不能删除根节点 ({})"
 
-#: assets/api/node.py:68
+#: assets/api/node.py:76
 msgid "Deletion failed and the node contains children or assets"
 msgstr "删除失败，节点包含子节点或资产"
 
@@ -364,7 +365,7 @@ msgstr "节点"
 
 #: assets/models/asset.py:200 assets/models/cmd_filter.py:22
 #: assets/models/domain.py:56 assets/models/label.py:22
-#: authentication/models.py:48
+#: authentication/models.py:46
 msgid "Is active"
 msgstr "激活"
 
@@ -484,7 +485,7 @@ msgstr "带宽"
 msgid "Contact"
 msgstr "联系人"
 
-#: assets/models/cluster.py:22 users/models/user.py:520
+#: assets/models/cluster.py:22 users/models/user.py:514
 #: users/templates/users/user_detail.html:62
 msgid "Phone"
 msgstr "手机"
@@ -510,7 +511,7 @@ msgid "Default"
 msgstr "默认"
 
 #: assets/models/cluster.py:36 assets/models/label.py:14
-#: users/models/user.py:661
+#: users/models/user.py:655
 msgid "System"
 msgstr "系统"
 
@@ -611,8 +612,8 @@ msgid "Default asset group"
 msgstr "默认资产组"
 
 #: assets/models/label.py:15 audits/models.py:36 audits/models.py:56
-#: audits/models.py:69 audits/serializers.py:80 authentication/models.py:46
-#: authentication/models.py:90 orgs/models.py:18 orgs/models.py:396
+#: audits/models.py:69 audits/serializers.py:81 authentication/models.py:44
+#: authentication/models.py:88 orgs/models.py:18 orgs/models.py:396
 #: perms/forms/asset_permission.py:83 perms/forms/database_app_permission.py:38
 #: perms/forms/remote_app_permission.py:40 perms/models/asset_permission.py:169
 #: perms/models/base.py:49 templates/index.html:78
@@ -621,7 +622,7 @@ msgstr "默认资产组"
 #: tickets/models/ticket.py:30 tickets/models/ticket.py:136
 #: tickets/serializers/request_asset_perm.py:66
 #: tickets/serializers/ticket.py:31 users/forms/group.py:15
-#: users/models/user.py:159 users/models/user.py:649
+#: users/models/user.py:159 users/models/user.py:643
 #: users/serializers/group.py:20
 #: users/templates/users/user_asset_permission.html:38
 #: users/templates/users/user_asset_permission.html:64
@@ -715,7 +716,7 @@ msgstr "登录模式"
 msgid "SFTP Root"
 msgstr "SFTP根路径"
 
-#: assets/models/user.py:110 authentication/models.py:88
+#: assets/models/user.py:110 authentication/models.py:86
 msgid "Token"
 msgstr ""
 
@@ -809,14 +810,14 @@ msgid "Backend"
 msgstr "后端"
 
 #: assets/serializers/asset_user.py:75 users/forms/profile.py:148
-#: users/models/user.py:531 users/templates/users/user_password_update.html:48
+#: users/models/user.py:525 users/templates/users/user_password_update.html:48
 #: users/templates/users/user_profile.html:69
 #: users/templates/users/user_profile_update.html:46
 #: users/templates/users/user_pubkey_update.html:46
 msgid "Public key"
 msgstr "SSH公钥"
 
-#: assets/serializers/asset_user.py:79 users/models/user.py:528
+#: assets/serializers/asset_user.py:79 users/models/user.py:522
 msgid "Private key"
 msgstr "ssh私钥"
 
@@ -936,6 +937,11 @@ msgstr "更新节点资产硬件信息: {}"
 msgid "Gather assets users"
 msgstr "收集资产上的用户"
 
+#: assets/tasks/nodes_amount.py:19
+msgid ""
+"The task of self-checking is already running and cannot be started repeatedly"
+msgstr "自检程序已经在运行，不能重复启动"
+
 #: assets/tasks/push_system_user.py:184
 #: assets/tasks/system_user_connectivity.py:89
 msgid "System user is dynamic: {}"
@@ -1125,14 +1131,14 @@ msgstr "登录IP"
 msgid "Login city"
 msgstr "登录城市"
 
-#: audits/models.py:103 audits/serializers.py:37
+#: audits/models.py:103 audits/serializers.py:38
 msgid "User agent"
 msgstr "用户代理"
 
 #: audits/models.py:104
 #: authentication/templates/authentication/_mfa_confirm_modal.html:14
 #: authentication/templates/authentication/login_otp.html:6
-#: users/forms/profile.py:52 users/models/user.py:523
+#: users/forms/profile.py:52 users/models/user.py:517
 #: users/serializers/user.py:232 users/templates/users/user_detail.html:77
 #: users/templates/users/user_profile.html:87
 msgid "MFA"
@@ -1153,6 +1159,10 @@ msgstr "状态"
 msgid "Date login"
 msgstr "登录日期"
 
+#: audits/models.py:108
+msgid "Login backend"
+msgstr "登录引擎"
+
 #: audits/serializers.py:15
 msgid "Operate for display"
 msgstr "操作（显示名称）"
@@ -1165,32 +1175,40 @@ msgstr "状态（显示名称）"
 msgid "MFA for display"
 msgstr "多因子认证状态（显示名称）"
 
-#: audits/serializers.py:65 audits/serializers.py:77 ops/models/adhoc.py:244
+#: audits/serializers.py:66 audits/serializers.py:78 ops/models/adhoc.py:244
 #: terminal/serializers/session.py:34
 msgid "Is success"
 msgstr "是否成功"
 
-#: audits/serializers.py:76 ops/models/command.py:24
+#: audits/serializers.py:77 ops/models/command.py:24
 #: xpack/plugins/cloud/models.py:222
 msgid "Result"
 msgstr "结果"
 
-#: audits/serializers.py:78
+#: audits/serializers.py:79
 msgid "Hosts"
 msgstr "主机"
 
-#: audits/serializers.py:79
+#: audits/serializers.py:80
 msgid "Run as"
 msgstr "运行用户"
 
-#: audits/serializers.py:81
+#: audits/serializers.py:82
 msgid "Run as for display"
 msgstr "运行用户（显示名称）"
 
-#: audits/serializers.py:82
+#: audits/serializers.py:83
 msgid "User for display"
 msgstr "用户（显示名称）"
 
+#: audits/signals_handler.py:38
+msgid "SSH Key"
+msgstr "SSH 密钥"
+
+#: audits/signals_handler.py:43
+msgid "SSO"
+msgstr ""
+
 #: authentication/api/mfa.py:60
 msgid "Code is invalid"
 msgstr "Code无效"
@@ -1333,7 +1351,7 @@ msgstr "你的密码过于简单，为了安全，请修改"
 
 #: authentication/errors.py:227 authentication/views/login.py:262
 msgid "Your password has expired, please reset before logging in"
-msgstr "您的密码已过期，请先修改再登录"
+msgstr "您的密码已过期，先修改再登录"
 
 #: authentication/forms.py:26 authentication/forms.py:34
 #: authentication/templates/authentication/login.html:39
@@ -1342,7 +1360,7 @@ msgstr "您的密码已过期，请先修改再登录"
 msgid "MFA code"
 msgstr "多因子认证验证码"
 
-#: authentication/models.py:22
+#: authentication/models.py:20
 #: authentication/templates/authentication/_access_key_modal.html:32
 #: perms/models/base.py:51 users/templates/users/_select_user_modal.html:18
 #: users/templates/users/user_detail.html:132
@@ -1350,24 +1368,24 @@ msgstr "多因子认证验证码"
 msgid "Active"
 msgstr "激活中"
 
-#: authentication/models.py:42
+#: authentication/models.py:40
 msgid "Private Token"
 msgstr "SSH密钥"
 
-#: authentication/models.py:47 users/templates/users/user_detail.html:258
+#: authentication/models.py:45 users/templates/users/user_detail.html:258
 msgid "Reviewers"
 msgstr "审批人"
 
-#: authentication/models.py:56 tickets/models/ticket.py:23
+#: authentication/models.py:54 tickets/models/ticket.py:23
 #: users/templates/users/user_detail.html:250
 msgid "Login confirm"
 msgstr "登录复核"
 
-#: authentication/models.py:66
+#: authentication/models.py:64
 msgid "City"
 msgstr "城市"
 
-#: authentication/models.py:89
+#: authentication/models.py:87
 msgid "Expired"
 msgstr "过期时间"
 
@@ -1857,7 +1875,7 @@ msgstr "组织管理员"
 msgid "Organization auditor"
 msgstr "组织审计员"
 
-#: orgs/models.py:397 users/forms/user.py:27 users/models/user.py:511
+#: orgs/models.py:397 users/forms/user.py:27 users/models/user.py:505
 #: users/templates/users/_select_user_modal.html:15
 #: users/templates/users/user_detail.html:73
 #: users/templates/users/user_list.html:16
@@ -1890,7 +1908,7 @@ msgstr "提示：RDP 协议不支持单独控制上传或下载文件"
 #: perms/forms/asset_permission.py:86 perms/forms/database_app_permission.py:41
 #: perms/forms/remote_app_permission.py:43 perms/models/base.py:50
 #: templates/_nav.html:21 users/forms/user.py:168 users/models/group.py:31
-#: users/models/user.py:507 users/templates/users/_select_user_modal.html:16
+#: users/models/user.py:501 users/templates/users/_select_user_modal.html:16
 #: users/templates/users/user_asset_permission.html:39
 #: users/templates/users/user_asset_permission.html:67
 #: users/templates/users/user_database_app_permission.html:38
@@ -1964,7 +1982,7 @@ msgid "Asset permission"
 msgstr "资产授权"
 
 #: perms/models/base.py:53 tickets/serializers/request_asset_perm.py:31
-#: users/models/user.py:539 users/templates/users/user_detail.html:93
+#: users/models/user.py:533 users/templates/users/user_detail.html:93
 #: users/templates/users/user_profile.html:120
 msgid "Date expired"
 msgstr "失效日期"
@@ -3116,7 +3134,7 @@ msgstr "确认密码"
 msgid "Password does not match"
 msgstr "密码不一致"
 
-#: users/forms/profile.py:89 users/models/user.py:503
+#: users/forms/profile.py:89 users/models/user.py:497
 #: users/templates/users/user_detail.html:57
 #: users/templates/users/user_profile.html:59
 msgid "Email"
@@ -3157,7 +3175,7 @@ msgstr "不能和原来的密钥相同"
 msgid "Not a valid ssh public key"
 msgstr "SSH密钥不合法"
 
-#: users/forms/user.py:31 users/models/user.py:546
+#: users/forms/user.py:31 users/models/user.py:540
 #: users/templates/users/user_detail.html:89
 #: users/templates/users/user_list.html:18
 #: users/templates/users/user_profile.html:102
@@ -3203,27 +3221,27 @@ msgstr "系统审计员"
 msgid "Force enable"
 msgstr "强制启用"
 
-#: users/models/user.py:490
+#: users/models/user.py:485
 msgid "Local"
 msgstr "数据库"
 
-#: users/models/user.py:514
+#: users/models/user.py:508
 msgid "Avatar"
 msgstr "头像"
 
-#: users/models/user.py:517 users/templates/users/user_detail.html:68
+#: users/models/user.py:511 users/templates/users/user_detail.html:68
 msgid "Wechat"
 msgstr "微信"
 
-#: users/models/user.py:550
+#: users/models/user.py:544
 msgid "Date password last updated"
 msgstr "最后更新密码日期"
 
-#: users/models/user.py:657
+#: users/models/user.py:651
 msgid "Administrator"
 msgstr "管理员"
 
-#: users/models/user.py:660
+#: users/models/user.py:654
 msgid "Administrator is the super user of system"
 msgstr "Administrator是初始的超级管理员"