diff --git a/apps/accounts/serializers/account/account.py b/apps/accounts/serializers/account/account.py
index 3017b950c..3db4cf445 100644
--- a/apps/accounts/serializers/account/account.py
+++ b/apps/accounts/serializers/account/account.py
@@ -1,13 +1,13 @@
 from django.utils.translation import ugettext_lazy as _
 from rest_framework import serializers
 
-from assets.models import Asset
 from accounts.const import SecretType, Source
 from accounts.models import Account, AccountTemplate
 from accounts.tasks import push_accounts_to_assets
 from assets.const import Category, AllTypes
-from common.serializers.fields import ObjectRelatedField, LabeledChoiceField
+from assets.models import Asset
 from common.serializers import SecretReadableMixin, BulkModelSerializer
+from common.serializers.fields import ObjectRelatedField, LabeledChoiceField
 from .base import BaseAccountSerializer
 
 
diff --git a/apps/accounts/signal_handlers.py b/apps/accounts/signal_handlers.py
index d2ac73cc4..1323a17be 100644
--- a/apps/accounts/signal_handlers.py
+++ b/apps/accounts/signal_handlers.py
@@ -1,4 +1,5 @@
-from django.db.models.signals import pre_save, post_save
+from django.db.models.signals import post_save
+from django.db.models.signals import pre_save
 from django.dispatch import receiver
 
 from assets.models import Asset
diff --git a/apps/accounts/tasks/common.py b/apps/accounts/tasks/common.py
index 569a487a3..5c8aeedf5 100644
--- a/apps/accounts/tasks/common.py
+++ b/apps/accounts/tasks/common.py
@@ -4,9 +4,9 @@ from assets.tasks.common import generate_automation_execution_data
 from common.const.choices import Trigger
 
 
-def automation_execute_start(task_name, tp, child_snapshot=None):
+def automation_execute_start(task_name, tp, task_snapshot=None):
     from accounts.models import AutomationExecution
-    data = generate_automation_execution_data(task_name, tp, child_snapshot)
+    data = generate_automation_execution_data(task_name, tp, task_snapshot)
 
     while True:
         try:
diff --git a/apps/accounts/tasks/gather_accounts.py b/apps/accounts/tasks/gather_accounts.py
index dbfbe981e..434c2c0d8 100644
--- a/apps/accounts/tasks/gather_accounts.py
+++ b/apps/accounts/tasks/gather_accounts.py
@@ -1,13 +1,13 @@
 # ~*~ coding: utf-8 ~*~
 from celery import shared_task
-from django.utils.translation import gettext_noop
 from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_noop
 
+from accounts.const import AutomationTypes
+from accounts.tasks.common import automation_execute_start
 from assets.models import Node
 from common.utils import get_logger
 from orgs.utils import org_aware_func
-from accounts.const import AutomationTypes
-from accounts.tasks.common import automation_execute_start
 
 __all__ = ['gather_asset_accounts']
 logger = get_logger(__name__)
@@ -18,11 +18,11 @@ def gather_asset_accounts_util(nodes, task_name):
     from accounts.models import GatherAccountsAutomation
     task_name = GatherAccountsAutomation.generate_unique_name(task_name)
 
-    child_snapshot = {
+    task_snapshot = {
         'nodes': [str(node.id) for node in nodes],
     }
     tp = AutomationTypes.verify_account
-    automation_execute_start(task_name, tp, child_snapshot)
+    automation_execute_start(task_name, tp, task_snapshot)
 
 
 @shared_task(queue="ansible", verbose_name=_('Gather asset accounts'))
diff --git a/apps/accounts/tasks/push_account.py b/apps/accounts/tasks/push_account.py
index 4ae09d72b..2b3e9279a 100644
--- a/apps/accounts/tasks/push_account.py
+++ b/apps/accounts/tasks/push_account.py
@@ -1,10 +1,10 @@
 from celery import shared_task
 from django.utils.translation import gettext_noop, ugettext_lazy as _
 
-from common.utils import get_logger
-from orgs.utils import org_aware_func
 from accounts.const import AutomationTypes
 from accounts.tasks.common import automation_execute_start
+from common.utils import get_logger
+from orgs.utils import org_aware_func
 
 logger = get_logger(__file__)
 __all__ = [
@@ -13,14 +13,14 @@ __all__ = [
 
 
 def push_util(account, assets, task_name):
-    child_snapshot = {
+    task_snapshot = {
         'secret': account.secret,
         'secret_type': account.secret_type,
         'accounts': [account.username],
         'assets': [str(asset.id) for asset in assets],
     }
     tp = AutomationTypes.push_account
-    automation_execute_start(task_name, tp, child_snapshot)
+    automation_execute_start(task_name, tp, task_snapshot)
 
 
 @org_aware_func("assets")
diff --git a/apps/accounts/tasks/verify_account.py b/apps/accounts/tasks/verify_account.py
index 4c478ce89..219c7fdaa 100644
--- a/apps/accounts/tasks/verify_account.py
+++ b/apps/accounts/tasks/verify_account.py
@@ -2,10 +2,10 @@ from celery import shared_task
 from django.utils.translation import gettext_noop
 from django.utils.translation import ugettext as _
 
-from common.utils import get_logger
-from assets.const import GATEWAY_NAME
 from accounts.const import AutomationTypes
 from accounts.tasks.common import automation_execute_start
+from assets.const import GATEWAY_NAME
+from common.utils import get_logger
 from orgs.utils import org_aware_func
 
 logger = get_logger(__name__)
@@ -18,11 +18,11 @@ def verify_connectivity_util(assets, tp, accounts, task_name):
     if not assets or not accounts:
         return
     account_usernames = list(accounts.values_list('username', flat=True))
-    child_snapshot = {
+    task_snapshot = {
         'accounts': account_usernames,
         'assets': [str(asset.id) for asset in assets],
     }
-    automation_execute_start(task_name, tp, child_snapshot)
+    automation_execute_start(task_name, tp, task_snapshot)
 
 
 @org_aware_func("assets")
diff --git a/apps/assets/models/node.py b/apps/assets/models/node.py
index 5d1e633f5..8f6ee45f3 100644
--- a/apps/assets/models/node.py
+++ b/apps/assets/models/node.py
@@ -256,8 +256,6 @@ class FamilyMixin:
 
 
 class NodeAllAssetsMappingMixin:
-    # Use a new plan
-
     # { org_id: { node_key: [ asset1_id, asset2_id ] } }
     orgid_nodekey_assetsid_mapping = defaultdict(dict)
     locks_for_get_mapping_from_cache = defaultdict(threading.Lock)
@@ -273,20 +271,7 @@ class NodeAllAssetsMappingMixin:
         if _mapping:
             return _mapping
 
-        logger.debug(f'Get node asset mapping from memory failed, acquire thread lock: '
-                     f'thread={threading.get_ident()} '
-                     f'org_id={org_id}')
         with cls.get_lock(org_id):
-            logger.debug(f'Acquired thread lock ok. check if mapping is in memory now: '
-                         f'thread={threading.get_ident()} '
-                         f'org_id={org_id}')
-            _mapping = cls.get_node_all_asset_ids_mapping_from_memory(org_id)
-            if _mapping:
-                logger.debug(f'Mapping is already in memory now: '
-                             f'thread={threading.get_ident()} '
-                             f'org_id={org_id}')
-                return _mapping
-
             _mapping = cls.get_node_all_asset_ids_mapping_from_cache_or_generate_to_cache(org_id)
             cls.set_node_all_asset_ids_mapping_to_memory(org_id, mapping=_mapping)
         return _mapping
@@ -302,18 +287,18 @@ class NodeAllAssetsMappingMixin:
         cls.orgid_nodekey_assetsid_mapping[org_id] = mapping
 
     @classmethod
-    def expire_node_all_asset_ids_mapping_from_memory(cls, org_id):
+    def expire_node_all_asset_ids_memory_mapping(cls, org_id):
         org_id = str(org_id)
         cls.orgid_nodekey_assetsid_mapping.pop(org_id, None)
 
     @classmethod
-    def expire_all_orgs_node_all_asset_ids_mapping_from_memory(cls):
+    def expire_all_orgs_node_all_asset_ids_memory_mapping(cls):
         orgs = Organization.objects.all()
         org_ids = [str(org.id) for org in orgs]
         org_ids.append(Organization.ROOT_ID)
 
-        for id in org_ids:
-            cls.expire_node_all_asset_ids_mapping_from_memory(id)
+        for i in org_ids:
+            cls.expire_node_all_asset_ids_memory_mapping(i)
 
     # get order: from memory -> (from cache -> to generate)
     @classmethod
@@ -332,25 +317,18 @@ class NodeAllAssetsMappingMixin:
                 return _mapping
 
             _mapping = cls.generate_node_all_asset_ids_mapping(org_id)
-            cls.set_node_all_asset_ids_mapping_to_cache(org_id=org_id, mapping=_mapping)
+            cache_key = cls._get_cache_key_for_node_all_asset_ids_mapping(org_id)
+            cache.set(cache_key, mapping, timeout=None)
             return _mapping
 
     @classmethod
     def get_node_all_asset_ids_mapping_from_cache(cls, org_id):
         cache_key = cls._get_cache_key_for_node_all_asset_ids_mapping(org_id)
         mapping = cache.get(cache_key)
-        logger.info(f'Get node asset mapping from cache {bool(mapping)}: '
-                    f'thread={threading.get_ident()} '
-                    f'org_id={org_id}')
         return mapping
 
     @classmethod
-    def set_node_all_asset_ids_mapping_to_cache(cls, org_id, mapping):
-        cache_key = cls._get_cache_key_for_node_all_asset_ids_mapping(org_id)
-        cache.set(cache_key, mapping, timeout=None)
-
-    @classmethod
-    def expire_node_all_asset_ids_mapping_from_cache(cls, org_id):
+    def expire_node_all_asset_ids_cache_mapping(cls, org_id):
         cache_key = cls._get_cache_key_for_node_all_asset_ids_mapping(org_id)
         cache.delete(cache_key)
 
@@ -411,6 +389,14 @@ class NodeAssetsMixin(NodeAllAssetsMappingMixin):
         q = Q(nodes__key__startswith=f'{self.key}:') | Q(nodes__key=self.key)
         return Asset.objects.filter(q).distinct()
 
+    def get_assets_amount(self):
+        q = Q(node__key__startswith=f'{self.key}:') | Q(node__key=self.key)
+        return self.assets.through.objects.filter(q).count()
+
+    def get_assets_account_by_children(self):
+        children = self.get_all_children().values_list()
+        return self.assets.through.objects.filter(node_id__in=children).count()
+
     @classmethod
     def get_node_all_assets_by_key_v2(cls, key):
         # 最初的写法是：
diff --git a/apps/assets/serializers/asset/common.py b/apps/assets/serializers/asset/common.py
index 732fbe55d..35a4af460 100644
--- a/apps/assets/serializers/asset/common.py
+++ b/apps/assets/serializers/asset/common.py
@@ -130,7 +130,7 @@ class AssetSerializer(BulkOrgResourceModelSerializer, WritableNestedModelSeriali
         ]
         read_only_fields = [
             'category', 'type', 'connectivity',
-            'date_verified', 'created_by', 'date_created'
+            'date_verified', 'created_by', 'date_created',
         ]
         fields = fields_small + fields_fk + fields_m2m + read_only_fields
         extra_kwargs = {
@@ -228,6 +228,8 @@ class AssetSerializer(BulkOrgResourceModelSerializer, WritableNestedModelSeriali
         node_id = request.query_params.get('node_id')
         if not node_id:
             return []
+        nodes = Node.objects.filter(id=node_id)
+        return nodes
 
     def is_valid(self, raise_exception=False):
         self._set_protocols_default()
diff --git a/apps/assets/signal_handlers/asset.py b/apps/assets/signal_handlers/asset.py
index 55851f9c6..94aa86ff2 100644
--- a/apps/assets/signal_handlers/asset.py
+++ b/apps/assets/signal_handlers/asset.py
@@ -1,15 +1,15 @@
 # -*- coding: utf-8 -*-
 #
 from django.db.models.signals import (
-    post_save, m2m_changed, pre_delete, post_delete, pre_save
+    m2m_changed, pre_delete, post_delete, pre_save, post_save
 )
 from django.dispatch import receiver
 from django.utils.translation import gettext_noop
 
-from assets.models import Asset, Node, Cloud, Device, Host, Web, Database
-from assets.tasks import test_assets_connectivity_task
-from common.const.signals import POST_ADD, POST_REMOVE, PRE_REMOVE
-from common.decorators import on_transaction_commit, merge_delay_run
+from assets.models import Asset, Node, Host, Database, Device, Web, Cloud
+from assets.tasks import test_assets_connectivity_task, gather_assets_facts_task
+from common.const.signals import POST_REMOVE, PRE_REMOVE
+from common.decorators import on_transaction_commit, merge_delay_run, key_by_org
 from common.utils import get_logger
 
 logger = get_logger(__file__)
@@ -20,15 +20,33 @@ def on_node_pre_save(sender, instance: Node, **kwargs):
     instance.parent_key = instance.compute_parent_key()
 
 
-@merge_delay_run(ttl=10)
+@merge_delay_run(ttl=5, key=key_by_org)
 def test_assets_connectivity_handler(*assets):
     task_name = gettext_noop("Test assets connectivity ")
     test_assets_connectivity_task.delay(assets, task_name)
 
 
-@merge_delay_run(ttl=10)
+@merge_delay_run(ttl=5, key=key_by_org)
 def gather_assets_facts_handler(*assets):
-    pass
+    if not assets:
+        logger.info("No assets to update hardware info")
+        return
+    name = gettext_noop("Gather asset hardware info")
+    gather_assets_facts_task.delay(assets=assets, task_name=name)
+
+
+@merge_delay_run(ttl=5, key=key_by_org)
+def ensure_asset_has_node(*assets):
+    asset_ids = [asset.id for asset in assets]
+    has_ids = Asset.nodes.through.objects \
+        .filter(asset_id__in=asset_ids) \
+        .values_list('asset_id', flat=True)
+    need_ids = set(asset_ids) - set(has_ids)
+    if not need_ids:
+        return
+
+    org_root = Node.org_root()
+    org_root.assets.add(*need_ids)
 
 
 @receiver(post_save, sender=Asset)
@@ -42,38 +60,16 @@ def on_asset_create(sender, instance=None, created=False, **kwargs):
         return
     logger.info("Asset create signal recv: {}".format(instance))
 
+    ensure_asset_has_node(instance)
+
     # 获取资产硬件信息
-    test_assets_connectivity_handler([instance])
-    gather_assets_facts_handler([instance])
-
-    # 确保资产存在一个节点
-    has_node = instance.nodes.all().exists()
-    if not has_node:
-        instance.nodes.add(Node.org_root())
-
-
-@receiver(m2m_changed, sender=Asset.nodes.through)
-def on_asset_nodes_add(instance, action, reverse, pk_set, **kwargs):
-    """
-    本操作共访问 4 次数据库
-
-    当资产的节点发生变化时，或者 当节点的资产关系发生变化时，
-    节点下新增的资产，添加到节点关联的系统用户中
-    """
-    if action != POST_ADD:
-        return
-    logger.debug("Assets node add signal recv: {}".format(action))
-    if reverse:
-        nodes = [instance.key]
-        asset_ids = pk_set
-    else:
-        nodes = Node.objects.filter(pk__in=pk_set).values_list('key', flat=True)
-        asset_ids = [instance.id]
-
-    # 节点资产发生变化时，将资产关联到节点及祖先节点关联的系统用户, 只关注新增的
-    nodes_ancestors_keys = set()
-    for node in nodes:
-        nodes_ancestors_keys.update(Node.get_node_ancestor_keys(node, with_self=True))
+    auto_info = instance.auto_info
+    if auto_info.get('ping_enabled'):
+        logger.debug('Asset {} ping enabled, test connectivity'.format(instance.name))
+        test_assets_connectivity_handler(instance)
+    if auto_info.get('gather_facts_enabled'):
+        logger.debug('Asset {} gather facts enabled, gather facts'.format(instance.name))
+        gather_assets_facts_handler(instance)
 
 
 RELATED_NODE_IDS = '_related_node_ids'
@@ -82,19 +78,19 @@ RELATED_NODE_IDS = '_related_node_ids'
 @receiver(pre_delete, sender=Asset)
 def on_asset_delete(instance: Asset, using, **kwargs):
     logger.debug("Asset pre delete signal recv: {}".format(instance))
-    node_ids = set(Node.objects.filter(
-        assets=instance
-    ).distinct().values_list('id', flat=True))
+    node_ids = Node.objects.filter(assets=instance) \
+        .distinct().values_list('id', flat=True)
     setattr(instance, RELATED_NODE_IDS, node_ids)
     m2m_changed.send(
-        sender=Asset.nodes.through, instance=instance, reverse=False,
-        model=Node, pk_set=node_ids, using=using, action=PRE_REMOVE
+        sender=Asset.nodes.through, instance=instance,
+        reverse=False, model=Node, pk_set=node_ids,
+        using=using, action=PRE_REMOVE
     )
 
 
 @receiver(post_delete, sender=Asset)
 def on_asset_post_delete(instance: Asset, using, **kwargs):
-    logger.debug("Asset delete signal recv: {}".format(instance))
+    logger.debug("Asset post delete signal recv: {}".format(instance))
     node_ids = getattr(instance, RELATED_NODE_IDS, None)
     if node_ids:
         m2m_changed.send(
diff --git a/apps/assets/signal_handlers/node_assets_amount.py b/apps/assets/signal_handlers/node_assets_amount.py
index cb9d2fcc1..314171a71 100644
--- a/apps/assets/signal_handlers/node_assets_amount.py
+++ b/apps/assets/signal_handlers/node_assets_amount.py
@@ -1,22 +1,21 @@
 # -*- coding: utf-8 -*-
 #
 from operator import add, sub
-from django.db.models import Q, F
+
+from django.db.models.signals import m2m_changed
 from django.dispatch import receiver
-from django.db.models.signals import (
-    m2m_changed
-)
 
-from orgs.utils import ensure_in_real_or_default_org, tmp_to_org
+from assets.models import Asset, Node
 from common.const.signals import PRE_ADD, POST_REMOVE, PRE_CLEAR
+from common.decorators import on_transaction_commit, merge_delay_run
 from common.utils import get_logger
-from assets.models import Asset, Node, compute_parent_key
-from assets.locks import NodeTreeUpdateLock
-
+from orgs.utils import tmp_to_org
+from ..tasks import check_node_assets_amount_task
 
 logger = get_logger(__file__)
 
 
+@on_transaction_commit
 @receiver(m2m_changed, sender=Asset.nodes.through)
 def on_node_asset_change(sender, action, instance, reverse, pk_set, **kwargs):
     # 不允许 `pre_clear` ，因为该信号没有 `pk_set`
@@ -25,136 +24,29 @@ def on_node_asset_change(sender, action, instance, reverse, pk_set, **kwargs):
     if action in refused:
         raise ValueError
 
-    mapper = {
-        PRE_ADD: add,
-        POST_REMOVE: sub
-    }
+    logger.debug('Recv asset nodes change signal, recompute node assets amount')
+    mapper = {PRE_ADD: add, POST_REMOVE: sub}
     if action not in mapper:
         return
 
-    operator = mapper[action]
-
     with tmp_to_org(instance.org):
         if reverse:
-            node: Node = instance
-            asset_pk_set = set(pk_set)
-            NodeAssetsAmountUtils.update_node_assets_amount(node, asset_pk_set, operator)
+            node_ids = [instance.id]
         else:
-            asset_pk = instance.id
-            # 与资产直接关联的节点
-            node_keys = set(Node.objects.filter(id__in=pk_set).values_list('key', flat=True))
-            NodeAssetsAmountUtils.update_nodes_asset_amount(node_keys, asset_pk, operator)
+            node_ids = pk_set
+        update_nodes_assets_amount(*node_ids)
 
 
-class NodeAssetsAmountUtils:
+@merge_delay_run(ttl=5)
+def update_nodes_assets_amount(*node_ids):
+    nodes = list(Node.objects.filter(id__in=node_ids))
+    logger.info('Update nodes assets amount: {} nodes'.format(len(node_ids)))
 
-    @classmethod
-    def _remove_ancestor_keys(cls, ancestor_key, tree_set):
-        # 这里判断 `ancestor_key` 不能是空，防止数据错误导致的死循环
-        # 判断是否在集合里，来区分是否已被处理过
-        while ancestor_key and ancestor_key in tree_set:
-            tree_set.remove(ancestor_key)
-            ancestor_key = compute_parent_key(ancestor_key)
+    if len(node_ids) > 100:
+        check_node_assets_amount_task.delay()
+        return
 
-    @classmethod
-    def _is_asset_exists_in_node(cls, asset_pk, node_key):
-        exists = Asset.objects.filter(
-            Q(nodes__key__istartswith=f'{node_key}:') | Q(nodes__key=node_key)
-        ).filter(id=asset_pk).exists()
-        return exists
+    for node in nodes:
+        node.assets_amount = node.get_assets_amount()
 
-    @classmethod
-    @ensure_in_real_or_default_org
-    @NodeTreeUpdateLock()
-    def update_nodes_asset_amount(cls, node_keys, asset_pk, operator):
-        """
-        一个资产与多个节点关系变化时，更新计数
-
-        :param node_keys: 节点 id 的集合
-        :param asset_pk: 资产 id
-        :param operator: 操作
-        """
-
-        # 所有相关节点的祖先节点，组成一棵局部树
-        ancestor_keys = set()
-        for key in node_keys:
-            ancestor_keys.update(Node.get_node_ancestor_keys(key))
-
-        # 相关节点可能是其他相关节点的祖先节点，如果是从相关节点里干掉
-        node_keys -= ancestor_keys
-
-        to_update_keys = []
-        for key in node_keys:
-            # 遍历相关节点，处理它及其祖先节点
-            # 查询该节点是否包含待处理资产
-            exists = cls._is_asset_exists_in_node(asset_pk, key)
-            parent_key = compute_parent_key(key)
-
-            if exists:
-                # 如果资产在该节点，那么他及其祖先节点都不用处理
-                cls._remove_ancestor_keys(parent_key, ancestor_keys)
-                continue
-            else:
-                # 不存在，要更新本节点
-                to_update_keys.append(key)
-                # 这里判断 `parent_key` 不能是空，防止数据错误导致的死循环
-                # 判断是否在集合里，来区分是否已被处理过
-                while parent_key and parent_key in ancestor_keys:
-                    exists = cls._is_asset_exists_in_node(asset_pk, parent_key)
-                    if exists:
-                        cls._remove_ancestor_keys(parent_key, ancestor_keys)
-                        break
-                    else:
-                        to_update_keys.append(parent_key)
-                        ancestor_keys.remove(parent_key)
-                        parent_key = compute_parent_key(parent_key)
-
-        Node.objects.filter(key__in=to_update_keys).update(
-            assets_amount=operator(F('assets_amount'), 1)
-        )
-
-    @classmethod
-    @ensure_in_real_or_default_org
-    @NodeTreeUpdateLock()
-    def update_node_assets_amount(cls, node: Node, asset_pk_set: set, operator=add):
-        """
-        一个节点与多个资产关系变化时，更新计数
-
-        :param node: 节点实例
-        :param asset_pk_set: 资产的`id`集合, 内部不会修改该值
-        :param operator: 操作
-        * -> Node
-        # -> Asset
-
-               * [3]
-              / \
-             *   * [2]
-            /     \
-           *       * [1]
-          /       / \
-         *   [a] #  # [b]
-
-        """
-        # 获取节点[1]祖先节点的 `key` 含自己，也就是[1, 2, 3]节点的`key`
-        ancestor_keys = node.get_ancestor_keys(with_self=True)
-        ancestors = Node.objects.filter(key__in=ancestor_keys).order_by('-key')
-        to_update = []
-        for ancestor in ancestors:
-            # 迭代祖先节点的`key`，顺序是 [1] -> [2] -> [3]
-            # 查询该节点及其后代节点是否包含要操作的资产，将包含的从要操作的
-            # 资产集合中去掉，他们是重复节点，无论增加或删除都不会影响节点的资产数量
-
-            asset_pk_set -= set(Asset.objects.filter(
-                id__in=asset_pk_set
-            ).filter(
-                Q(nodes__key__istartswith=f'{ancestor.key}:') |
-                Q(nodes__key=ancestor.key)
-            ).distinct().values_list('id', flat=True))
-            if not asset_pk_set:
-                # 要操作的资产集合为空，说明都是重复资产，不用改变节点资产数量
-                # 而且既然它包含了，它的祖先节点肯定也包含了，所以祖先节点都不用
-                # 处理了
-                break
-            ancestor.assets_amount = operator(F('assets_amount'), len(asset_pk_set))
-            to_update.append(ancestor)
-        Node.objects.bulk_update(to_update, fields=('assets_amount', 'parent_key'))
+    Node.objects.bulk_update(nodes, ['assets_amount'])
diff --git a/apps/assets/signal_handlers/node_assets_mapping.py b/apps/assets/signal_handlers/node_assets_mapping.py
index 27640fc76..54855a29a 100644
--- a/apps/assets/signal_handlers/node_assets_mapping.py
+++ b/apps/assets/signal_handlers/node_assets_mapping.py
@@ -2,42 +2,35 @@
 #
 
 from django.db.models.signals import (
-    m2m_changed, post_save, post_delete
+    post_save, post_delete, m2m_changed
 )
 from django.dispatch import receiver
-from django.utils.functional import LazyObject
+from django.utils.functional import lazy
 
-from assets.models import Asset, Node
+from assets.models import Node, Asset
+from common.decorators import merge_delay_run
 from common.signals import django_ready
 from common.utils import get_logger
 from common.utils.connection import RedisPubSub
 from orgs.models import Organization
 
-logger = get_logger(__file__)
-
+logger = get_logger(__name__)
 
 # clear node assets mapping for memory
 # ------------------------------------
+node_assets_mapping_pub_sub = lazy(lambda: RedisPubSub('fm.node_asset_mapping'), RedisPubSub)()
 
 
-class NodeAssetsMappingForMemoryPubSub(LazyObject):
-    def _setup(self):
-        self._wrapped = RedisPubSub('fm.node_all_asset_ids_memory_mapping')
-
-
-node_assets_mapping_for_memory_pub_sub = NodeAssetsMappingForMemoryPubSub()
-
-
-def expire_node_assets_mapping_for_memory(org_id):
+@merge_delay_run(ttl=5)
+def expire_node_assets_mapping(*org_ids):
     # 所有进程清除(自己的 memory 数据)
-    org_id = str(org_id)
     root_org_id = Organization.ROOT_ID
-
-    # 当前进程清除(cache 数据)
-    Node.expire_node_all_asset_ids_mapping_from_cache(org_id)
-    Node.expire_node_all_asset_ids_mapping_from_cache(root_org_id)
-
-    node_assets_mapping_for_memory_pub_sub.publish(org_id)
+    Node.expire_node_all_asset_ids_cache_mapping(root_org_id)
+    for org_id in set(org_ids):
+        org_id = str(org_id)
+        # 当前进程清除(cache 数据)
+        Node.expire_node_all_asset_ids_cache_mapping(org_id)
+        node_assets_mapping_pub_sub.publish(org_id)
 
 
 @receiver(post_save, sender=Node)
@@ -50,17 +43,18 @@ def on_node_post_create(sender, instance, created, update_fields, **kwargs):
         need_expire = False
 
     if need_expire:
-        expire_node_assets_mapping_for_memory(instance.org_id)
+        expire_node_assets_mapping(instance.org_id)
 
 
 @receiver(post_delete, sender=Node)
 def on_node_post_delete(sender, instance, **kwargs):
-    expire_node_assets_mapping_for_memory(instance.org_id)
+    expire_node_assets_mapping(instance.org_id)
 
 
 @receiver(m2m_changed, sender=Asset.nodes.through)
 def on_node_asset_change(sender, instance, **kwargs):
-    expire_node_assets_mapping_for_memory(instance.org_id)
+    logger.debug("Recv asset nodes changed signal, expire memery node asset mapping")
+    expire_node_assets_mapping(instance.org_id)
 
 
 @receiver(django_ready)
@@ -69,7 +63,7 @@ def subscribe_node_assets_mapping_expire(sender, **kwargs):
 
     def handle_node_relation_change(org_id):
         root_org_id = Organization.ROOT_ID
-        Node.expire_node_all_asset_ids_mapping_from_memory(org_id)
-        Node.expire_node_all_asset_ids_mapping_from_memory(root_org_id)
+        Node.expire_node_all_asset_ids_memory_mapping(org_id)
+        Node.expire_node_all_asset_ids_memory_mapping(root_org_id)
 
-    node_assets_mapping_for_memory_pub_sub.subscribe(handle_node_relation_change)
+    node_assets_mapping_pub_sub.subscribe(handle_node_relation_change)
diff --git a/apps/assets/tasks/common.py b/apps/assets/tasks/common.py
index a00485fe5..1931347b1 100644
--- a/apps/assets/tasks/common.py
+++ b/apps/assets/tasks/common.py
@@ -8,8 +8,8 @@ from common.const.choices import Trigger
 from orgs.utils import current_org
 
 
-def generate_automation_execution_data(task_name, tp, child_snapshot=None):
-    child_snapshot = child_snapshot or {}
+def generate_automation_execution_data(task_name, tp, task_snapshot=None):
+    task_snapshot = task_snapshot or {}
     from assets.models import BaseAutomation
     try:
         eid = current_task.request.id
@@ -25,13 +25,13 @@ def generate_automation_execution_data(task_name, tp, child_snapshot=None):
     automation_instance = BaseAutomation()
     snapshot = automation_instance.to_attr_json()
     snapshot.update(data)
-    snapshot.update(child_snapshot)
+    snapshot.update(task_snapshot)
     return {'id': eid, 'snapshot': snapshot}
 
 
-def quickstart_automation(task_name, tp, child_snapshot=None):
+def quickstart_automation(task_name, tp, task_snapshot=None):
     from assets.models import AutomationExecution
-    data = generate_automation_execution_data(task_name, tp, child_snapshot)
+    data = generate_automation_execution_data(task_name, tp, task_snapshot)
 
     while True:
         try:
diff --git a/apps/assets/tasks/gather_facts.py b/apps/assets/tasks/gather_facts.py
index 835621568..764342087 100644
--- a/apps/assets/tasks/gather_facts.py
+++ b/apps/assets/tasks/gather_facts.py
@@ -1,65 +1,55 @@
 # -*- coding: utf-8 -*-
 #
+from itertools import chain
+
 from celery import shared_task
 from django.utils.translation import gettext_noop, gettext_lazy as _
 
 from assets.const import AutomationTypes
 from common.utils import get_logger
-from orgs.utils import org_aware_func
+from orgs.utils import tmp_to_org
 from .common import quickstart_automation
 
 logger = get_logger(__file__)
 __all__ = [
-    'update_assets_fact_util',
+    'gather_assets_facts_task',
     'update_node_assets_hardware_info_manual',
     'update_assets_hardware_info_manual',
 ]
 
 
-def update_fact_util(assets=None, nodes=None, task_name=None):
+@shared_task(queue="ansible", verbose_name=_('Gather assets facts'))
+def gather_assets_facts_task(assets=None, nodes=None, task_name=None):
     from assets.models import GatherFactsAutomation
     if task_name is None:
-        task_name = gettext_noop("Update some assets hardware info. ")
+        task_name = gettext_noop("Gather assets facts")
     task_name = GatherFactsAutomation.generate_unique_name(task_name)
 
     nodes = nodes or []
     assets = assets or []
-    child_snapshot = {
+    resources = chain(assets, nodes)
+    if not resources:
+        raise ValueError("nodes or assets must be given")
+    org_id = list(resources)[0].org_id
+    task_snapshot = {
         'assets': [str(asset.id) for asset in assets],
         'nodes': [str(node.id) for node in nodes],
     }
     tp = AutomationTypes.gather_facts
-    quickstart_automation(task_name, tp, child_snapshot)
+
+    with tmp_to_org(org_id):
+        quickstart_automation(task_name, tp, task_snapshot)
 
 
-@org_aware_func('assets')
-def update_assets_fact_util(assets=None, task_name=None):
-    if assets is None:
-        logger.info("No assets to update hardware info")
-        return
-
-    update_fact_util(assets=assets, task_name=task_name)
-
-
-@org_aware_func('nodes')
-def update_nodes_fact_util(nodes=None, task_name=None):
-    if nodes is None:
-        logger.info("No nodes to update hardware info")
-        return
-    update_fact_util(nodes=nodes, task_name=task_name)
-
-
-@shared_task(queue="ansible", verbose_name=_('Manually update the hardware information of assets'))
 def update_assets_hardware_info_manual(asset_ids):
     from assets.models import Asset
     assets = Asset.objects.filter(id__in=asset_ids)
     task_name = gettext_noop("Update assets hardware info: ")
-    update_assets_fact_util(assets=assets, task_name=task_name)
+    gather_assets_facts_task.delay(assets=assets, task_name=task_name)
 
 
-@shared_task(queue="ansible", verbose_name=_('Manually update the hardware information of assets under a node'))
 def update_node_assets_hardware_info_manual(node_id):
     from assets.models import Node
     node = Node.objects.get(id=node_id)
     task_name = gettext_noop("Update node asset hardware information: ")
-    update_nodes_fact_util(nodes=[node], task_name=task_name)
+    gather_assets_facts_task.delay(nodes=[node], task_name=task_name)
diff --git a/apps/assets/tasks/ping.py b/apps/assets/tasks/ping.py
index dd48af59d..5cf0a94f8 100644
--- a/apps/assets/tasks/ping.py
+++ b/apps/assets/tasks/ping.py
@@ -24,8 +24,8 @@ def test_assets_connectivity_task(assets, task_name=None):
         task_name = gettext_noop("Test assets connectivity ")
 
     task_name = PingAutomation.generate_unique_name(task_name)
-    child_snapshot = {'assets': [str(asset.id) for asset in assets]}
-    quickstart_automation(task_name, AutomationTypes.ping, child_snapshot)
+    task_snapshot = {'assets': [str(asset.id) for asset in assets]}
+    quickstart_automation(task_name, AutomationTypes.ping, task_snapshot)
 
 
 def test_assets_connectivity_manual(asset_ids):
diff --git a/apps/assets/utils/node.py b/apps/assets/utils/node.py
index deaa7d32b..b21508b64 100644
--- a/apps/assets/utils/node.py
+++ b/apps/assets/utils/node.py
@@ -1,12 +1,12 @@
 # ~*~ coding: utf-8 ~*~
 #
 from collections import defaultdict
+
+from common.db.models import output_as_string
+from common.struct import Stack
 from common.utils import get_logger, dict_get_any, is_uuid, get_object_or_none, timeit
 from common.utils.http import is_true
-from common.struct import Stack
-from common.db.models import output_as_string
 from orgs.utils import ensure_in_real_or_default_org, current_org
-
 from ..locks import NodeTreeUpdateLock
 from ..models import Node, Asset
 
@@ -25,11 +25,11 @@ def check_node_assets_amount():
     for node in nodes:
         nodeid_nodekey_mapper[node.id] = node.key
 
-    for nodeid, assetid in nodeid_assetid_pairs:
-        if nodeid not in nodeid_nodekey_mapper:
+    for node_id, asset_id in nodeid_assetid_pairs:
+        if node_id not in nodeid_nodekey_mapper:
             continue
-        nodekey = nodeid_nodekey_mapper[nodeid]
-        nodekey_assetids_mapper[nodekey].add(assetid)
+        node_key = nodeid_nodekey_mapper[node_id]
+        nodekey_assetids_mapper[node_key].add(asset_id)
 
     util = NodeAssetsUtil(nodes, nodekey_assetids_mapper)
     util.generate()
diff --git a/apps/audits/signal_handlers.py b/apps/audits/signal_handlers.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/apps/common/const/__init__.py b/apps/common/const/__init__.py
index a6bcd95c8..ca2a510d5 100644
--- a/apps/common/const/__init__.py
+++ b/apps/common/const/__init__.py
@@ -1,14 +1,8 @@
 # -*- coding: utf-8 -*-
 #
 
-from django.utils.translation import ugettext_lazy as _
-
-create_success_msg = _("%(name)s was created successfully")
-update_success_msg = _("%(name)s was updated successfully")
-FILE_END_GUARD = ">>> Content End <<<"
-celery_task_pre_key = "CELERY_"
-KEY_CACHE_RESOURCE_IDS = "RESOURCE_IDS_{}"
-
-# AD User AccountDisable
-# https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/useraccountcontrol-manipulate-account-properties
-LDAP_AD_ACCOUNT_DISABLE = 2
+from .choices import *
+from .common import *
+from .crontab import *
+from .http import *
+from .signals import *
diff --git a/apps/common/const/common.py b/apps/common/const/common.py
new file mode 100644
index 000000000..86ae030d9
--- /dev/null
+++ b/apps/common/const/common.py
@@ -0,0 +1,11 @@
+from django.utils.translation import ugettext_lazy as _
+
+create_success_msg = _("%(name)s was created successfully")
+update_success_msg = _("%(name)s was updated successfully")
+FILE_END_GUARD = ">>> Content End <<<"
+celery_task_pre_key = "CELERY_"
+KEY_CACHE_RESOURCE_IDS = "RESOURCE_IDS_{}"
+
+# AD User AccountDisable
+# https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/useraccountcontrol-manipulate-account-properties
+LDAP_AD_ACCOUNT_DISABLE = 2
diff --git a/apps/common/decorators.py b/apps/common/decorators.py
index 91a6ca623..7e2c41ec5 100644
--- a/apps/common/decorators.py
+++ b/apps/common/decorators.py
@@ -1,7 +1,9 @@
 # -*- coding: utf-8 -*-
 #
+import asyncio
 import functools
 import inspect
+import threading
 import time
 import uuid
 from concurrent.futures import ThreadPoolExecutor
@@ -9,6 +11,8 @@ from concurrent.futures import ThreadPoolExecutor
 from django.core.cache import cache
 from django.db import transaction
 
+from .utils import logger
+
 
 def on_transaction_commit(func):
     """
@@ -34,54 +38,124 @@ class Singleton(object):
         return self._instance[self._cls]
 
 
-def _run_func_if_is_last(ttl, func, *args, **kwargs):
-    ix = uuid.uuid4().__str__()
-    key = f'DELAY_RUN_{func.__name__}'
-    cache.set(key, ix, ttl)
-    st = (ttl - 2 > 1) and ttl - 2 or 2
-    time.sleep(st)
-    got = cache.get(key, None)
+def default_suffix_key(*args, **kwargs):
+    return 'default'
 
-    if ix == got:
+
+def key_by_org(*args, **kwargs):
+    return args[0].org_id
+
+
+def _run_func_if_is_last(ttl, suffix_key, org, func, *args, **kwargs):
+    from orgs.utils import set_current_org
+
+    try:
+        set_current_org(org)
+        uid = uuid.uuid4().__str__()
+        suffix_key_func = suffix_key if suffix_key else default_suffix_key
+        func_name = f'{func.__module__}_{func.__name__}'
+        key_suffix = suffix_key_func(*args, **kwargs)
+        key = f'DELAY_RUN_{func_name}_{key_suffix}'
+        cache.set(key, uid, ttl)
+        st = (ttl - 2 > 1) and ttl - 2 or 2
+        time.sleep(st)
+        ret = cache.get(key, None)
+
+        if uid == ret:
+            func(*args, **kwargs)
+    except Exception as e:
+        logger.error('delay run error: %s' % e)
+
+
+class LoopThread(threading.Thread):
+    def __init__(self, loop, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.loop = loop
+
+    def run(self) -> None:
+        asyncio.set_event_loop(loop)
+        self.loop.run_forever()
+        print('loop stopped')
+
+
+loop = asyncio.get_event_loop()
+loop_thread = LoopThread(loop)
+loop_thread.daemon = True
+loop_thread.start()
+executor = ThreadPoolExecutor(max_workers=5, thread_name_prefix='debouncer')
+
+
+class Debouncer(object):
+    def __init__(self, callback, check, delay, *args, **kwargs):
+        self.callback = callback
+        self.check = check
+        self.delay = delay
+
+    async def __call__(self, *args, **kwargs):
+        await asyncio.sleep(self.delay)
+        ok = await self._check(*args, **kwargs)
+        if ok:
+            await loop.run_in_executor(executor, self.callback, *args)
+
+    async def _check(self, *args, **kwargs):
+        if asyncio.iscoroutinefunction(self.check):
+            return await self.check(*args, **kwargs)
+        return await loop.run_in_executor(executor, self.check)
+
+
+def _run_func_with_org(org, func, *args, **kwargs):
+    from orgs.utils import set_current_org
+
+    try:
+        set_current_org(org)
         func(*args, **kwargs)
+    except Exception as e:
+        logger.error('delay run error: %s' % e)
 
 
-executor = ThreadPoolExecutor(10)
+def delay_run(ttl=5, key=None):
+    """
+    延迟执行函数, 在 ttl 秒内, 只执行最后一次
+    :param ttl:
+    :param key: 是否合并参数, 一个 callback
+    :return:
+    """
 
-
-def delay_run(ttl=5):
     def inner(func):
         @functools.wraps(func)
         def wrapper(*args, **kwargs):
-            executor.submit(_run_func_if_is_last, ttl, func, *args, **kwargs)
+            from orgs.utils import get_current_org
+            org = get_current_org()
+            suffix_key_func = key if key else default_suffix_key
+            uid = uuid.uuid4().__str__()
+            func_name = f'{func.__module__}_{func.__name__}'
+            key_suffix = suffix_key_func(*args, **kwargs)
+            cache_key = f'DELAY_RUN_{func_name}_{key_suffix}'
+            # 延迟两倍时间，防止缓存过期，导致校验失败
+            cache.set(cache_key, uid, ttl * 2)
+
+            def _check_func(key_id, key_value):
+                ret = cache.get(key_id, None)
+                return key_value == ret
+
+            check_func_partial = functools.partial(_check_func, cache_key, uid)
+            run_func_partial = functools.partial(_run_func_with_org, org, func)
+            asyncio.run_coroutine_threadsafe(
+                Debouncer(run_func_partial, check_func_partial, ttl)(*args, **kwargs),
+                loop=loop
+            )
 
         return wrapper
 
     return inner
 
 
-def _merge_run(ttl, func, *args, **kwargs):
-    if not args or not isinstance(args[0], (list, tuple)):
-        raise ValueError('args[0] must be list or tuple')
-
-    key = f'DELAY_MERGE_RUN_{func.__name__}'
-    ix = uuid.uuid4().__str__()
-    value = cache.get(key, [])
-    value.extend(args[0])
-
-    st = (ttl - 2 > 1) and ttl - 2 or 2
-    time.sleep(st)
-    got = cache.get(key, None)
-
-    if ix == got:
-        func(*args, **kwargs)
-
-
-def merge_delay_run(ttl):
+def merge_delay_run(ttl, key=None):
     """
     合并 func 参数，延迟执行, 在 ttl 秒内, 只执行最后一次
     func 参数必须是 *args
     :param ttl:
+    :param key: 是否合并参数, 一个 callback
     :return:
     """
 
@@ -93,42 +167,50 @@ def merge_delay_run(ttl):
         if not str(param).startswith('*'):
             raise ValueError('func args must be startswith *: %s' % func.__name__)
 
+        suffix_key_func = key if key else default_suffix_key
+
         @functools.wraps(func)
         def wrapper(*args):
-            key = f'DELAY_MERGE_RUN_{func.__name__}'
-            values = cache.get(key, [])
+            key_suffix = suffix_key_func(*args)
+            func_name = f'{func.__module__}_{func.__name__}'
+            cache_key = f'DELAY_MERGE_RUN_{func_name}_{key_suffix}'
+            values = cache.get(cache_key, [])
             new_arg = [*values, *args]
-            cache.set(key, new_arg, ttl)
-            return delay_run(ttl)(func)(*new_arg)
+            cache.set(cache_key, new_arg, ttl)
+            return delay_run(ttl, suffix_key_func)(func)(*new_arg)
 
         return wrapper
 
     return inner
 
 
-def delay_run(ttl=5):
-    """
-    延迟执行函数, 在 ttl 秒内, 只执行最后一次
-    :param ttl:
-    :return:
-    """
-
-    def inner(func):
-        @functools.wraps(func)
-        def wrapper(*args, **kwargs):
-            executor.submit(_run_func_if_is_last, ttl, func, *args, **kwargs)
-
-        return wrapper
-
-    return inner
-
-
-@delay_run(ttl=10)
+@delay_run(ttl=5)
 def test_delay_run(username, year=2000):
     print("Hello, %s, now is %s" % (username, year))
 
 
-@merge_delay_run(ttl=10)
+@merge_delay_run(ttl=5, key=lambda *users: users[0][0])
 def test_merge_delay_run(*users):
     name = ','.join(users)
+    time.sleep(2)
     print("Hello, %s, now is %s" % (name, time.time()))
+
+
+@merge_delay_run(ttl=5, key=lambda *users: users[0][0])
+def test_merge_delay_run(*users):
+    name = ','.join(users)
+    time.sleep(2)
+    print("Hello, %s, now is %s" % (name, time.time()))
+
+
+def do_test():
+    s = time.time()
+    print("start : %s" % time.time())
+    for i in range(100):
+        # test_delay_run('test', year=i)
+        test_merge_delay_run('test %s' % i)
+        test_merge_delay_run('best %s' % i)
+
+    end = time.time()
+    using = end - s
+    print("end : %s, using: %s" % (end, using))
diff --git a/apps/common/management/commands/expire_caches.py b/apps/common/management/commands/expire_caches.py
index bc20a3cf5..d83b995b0 100644
--- a/apps/common/management/commands/expire_caches.py
+++ b/apps/common/management/commands/expire_caches.py
@@ -1,6 +1,6 @@
 from django.core.management.base import BaseCommand
 
-from assets.signal_handlers.node_assets_mapping import expire_node_assets_mapping_for_memory
+from assets.signal_handlers.node_assets_mapping import expire_node_assets_mapping
 from orgs.caches import OrgResourceStatisticsCache
 from orgs.models import Organization
 
@@ -10,7 +10,7 @@ def expire_node_assets_mapping():
     org_ids = [*org_ids, '00000000-0000-0000-0000-000000000000']
 
     for org_id in org_ids:
-        expire_node_assets_mapping_for_memory(org_id)
+        expire_node_assets_mapping(org_id)
 
 
 def expire_org_resource_statistics_cache():
diff --git a/apps/common/signal_handlers.py b/apps/common/signal_handlers.py
index c65adf296..d03c76798 100644
--- a/apps/common/signal_handlers.py
+++ b/apps/common/signal_handlers.py
@@ -60,16 +60,18 @@ def on_request_finished_logging_db_query(sender, **kwargs):
         method = current_request.method
         path = current_request.get_full_path()
 
-    # print(">>> [{}] {}".format(method, path))
-    # for table_name, queries in table_queries.items():
-    #     if table_name.startswith('rbac_') or table_name.startswith('auth_permission'):
-    #         continue
-    #     print("- Table: {}".format(table_name))
-    #     for i, query in enumerate(queries, 1):
-    #         sql = query['sql']
-    #         if not sql or not sql.startswith('SELECT'):
-    #             continue
-    #         print('\t{}. {}'.format(i, sql))
+    print(">>> [{}] {}".format(method, path))
+    for table_name, queries in table_queries.items():
+        if table_name.startswith('rbac_') or table_name.startswith('auth_permission'):
+            continue
+        if len(queries) < 3:
+            continue
+        print("- Table: {}".format(table_name))
+        for i, query in enumerate(queries, 1):
+            sql = query['sql']
+            if not sql or not sql.startswith('SELECT'):
+                continue
+            print('\t{}. {}'.format(i, sql))
 
     logger.debug(">>> [{}] {}".format(method, path))
     for name, counter in counters:
diff --git a/apps/orgs/signal_handlers/cache.py b/apps/orgs/signal_handlers/cache.py
index c702dc6d2..bf166d9a8 100644
--- a/apps/orgs/signal_handlers/cache.py
+++ b/apps/orgs/signal_handlers/cache.py
@@ -1,19 +1,19 @@
 from django.db.models.signals import post_save, pre_delete, pre_save, post_delete
 from django.dispatch import receiver
 
-from orgs.models import Organization
-from assets.models import Node
 from accounts.models import Account
+from assets.models import Asset, Domain
+from assets.models import Node
+from common.decorators import merge_delay_run
+from common.utils import get_logger
+from orgs.caches import OrgResourceStatisticsCache
+from orgs.models import Organization
+from orgs.utils import current_org
 from perms.models import AssetPermission
-from audits.models import UserLoginLog
+from rbac.models import OrgRoleBinding, SystemRoleBinding, RoleBinding
+from terminal.models import Session
 from users.models import UserGroup, User
 from users.signals import pre_user_leave_org
-from terminal.models import Session
-from rbac.models import OrgRoleBinding, SystemRoleBinding, RoleBinding
-from assets.models import Asset, Domain
-from orgs.caches import OrgResourceStatisticsCache
-from orgs.utils import current_org
-from common.utils import get_logger
 
 logger = get_logger(__name__)
 
@@ -62,42 +62,32 @@ def on_user_delete_refresh_cache(sender, instance, **kwargs):
     refresh_all_orgs_user_amount_cache(instance)
 
 
-# @receiver(m2m_changed, sender=OrganizationMember)
-# def on_org_user_changed_refresh_cache(sender, action, instance, reverse, pk_set, **kwargs):
-#     if not action.startswith(POST_PREFIX):
-#         return
-#
-#     if reverse:
-#         orgs = Organization.objects.filter(id__in=pk_set)
-#     else:
-#         orgs = [instance]
-#
-#     for org in orgs:
-#         org_cache = OrgResourceStatisticsCache(org)
-#         org_cache.expire('users_amount')
-#     OrgResourceStatisticsCache(Organization.root()).expire('users_amount')
+model_cache_field_mapper = {
+    Node: ['nodes_amount'],
+    Domain: ['domains_amount'],
+    UserGroup: ['groups_amount'],
+    Account: ['accounts_amount'],
+    RoleBinding: ['users_amount', 'new_users_amount_this_week'],
+    Asset: ['assets_amount', 'new_assets_amount_this_week'],
+    AssetPermission: ['asset_perms_amount'],
+}
 
 
 class OrgResourceStatisticsRefreshUtil:
-    model_cache_field_mapper = {
-        Node: ['nodes_amount'],
-        Domain: ['domains_amount'],
-        UserGroup: ['groups_amount'],
-        Account: ['accounts_amount'],
-        RoleBinding: ['users_amount', 'new_users_amount_this_week'],
-        Asset: ['assets_amount', 'new_assets_amount_this_week'],
-        AssetPermission: ['asset_perms_amount'],
-
-    }
+    @staticmethod
+    @merge_delay_run(ttl=5)
+    def refresh_org_fields(*org_fields):
+        for org, cache_field_name in org_fields:
+            OrgResourceStatisticsCache(org).expire(*cache_field_name)
+            OrgResourceStatisticsCache(Organization.root()).expire(*cache_field_name)
 
     @classmethod
     def refresh_if_need(cls, instance):
-        cache_field_name = cls.model_cache_field_mapper.get(type(instance))
+        cache_field_name = model_cache_field_mapper.get(type(instance))
         if not cache_field_name:
             return
-        OrgResourceStatisticsCache(Organization.root()).expire(*cache_field_name)
-        if getattr(instance, 'org', None):
-            OrgResourceStatisticsCache(instance.org).expire(*cache_field_name)
+        org = getattr(instance, 'org', None)
+        cls.refresh_org_fields((org, cache_field_name))
 
 
 @receiver(post_save)
diff --git a/apps/settings/api/public.py b/apps/settings/api/public.py
index 161b8002a..ab313cd4f 100644
--- a/apps/settings/api/public.py
+++ b/apps/settings/api/public.py
@@ -1,13 +1,10 @@
-from rest_framework import generics
-from rest_framework.permissions import AllowAny, IsAuthenticated
 from django.conf import settings
+from rest_framework import generics
+from rest_framework.permissions import AllowAny
 
-from jumpserver.utils import has_valid_xpack_license, get_xpack_license_info
-from common.utils import get_logger, lazyproperty, get_object_or_none
-from authentication.models import ConnectionToken
-from orgs.utils import tmp_to_root_org
 from common.permissions import IsValidUserOrConnectionToken
-
+from common.utils import get_logger, lazyproperty
+from jumpserver.utils import has_valid_xpack_license, get_xpack_license_info
 from .. import serializers
 from ..utils import get_interface_setting_or_default
 
@@ -58,6 +55,3 @@ class PublicSettingApi(OpenPublicSettingApi):
             # 提前把异常爆出来
             values[name] = getattr(settings, name)
         return values
-
-
-
diff --git a/apps/terminal/signal_handlers/db_port.py b/apps/terminal/signal_handlers/db_port.py
index bacbc1f0c..d6118d40e 100644
--- a/apps/terminal/signal_handlers/db_port.py
+++ b/apps/terminal/signal_handlers/db_port.py
@@ -1,4 +1,4 @@
-from django.db.models.signals import post_save, post_delete
+from django.db.models.signals import post_delete, post_save
 from django.dispatch import receiver
 
 from assets.models import Asset
diff --git a/utils/generate_fake_data/generate.py b/utils/generate_fake_data/generate.py
index ee9a5cac4..394e27113 100644
--- a/utils/generate_fake_data/generate.py
+++ b/utils/generate_fake_data/generate.py
@@ -50,7 +50,7 @@ def main():
     if resource == 'all':
         generator_cls = resource_generator_mapper.values()
     else:
-        generator_cls.push(resource_generator_mapper[resource])
+        generator_cls.append(resource_generator_mapper[resource])
 
     for _cls in generator_cls:
         generator = _cls(org_id=org_id, batch_size=batch_size)
diff --git a/utils/generate_fake_data/resources/base.py b/utils/generate_fake_data/resources/base.py
index 723baa6dd..828789dd7 100644
--- a/utils/generate_fake_data/resources/base.py
+++ b/utils/generate_fake_data/resources/base.py
@@ -1,7 +1,8 @@
 #!/usr/bin/python
 
-from random import seed
+import time
 from itertools import islice
+from random import seed
 
 from orgs.models import Organization
 
@@ -18,7 +19,6 @@ class FakeDataGenerator:
         o = Organization.get_instance(org_id, default=Organization.default())
         if o:
             o.change_to()
-        print('Current org is: {}'.format(o))
         return o
 
     def do_generate(self, batch, batch_size):
@@ -38,8 +38,11 @@ class FakeDataGenerator:
             batch = list(islice(counter, self.batch_size))
             if not batch:
                 break
+            start = time.time()
             self.do_generate(batch, self.batch_size)
+            end = time.time()
+            using = end - start
             from_size = created
             created += len(batch)
-            print('Generate %s: %s-%s' % (self.resource, from_size, created))
-        self.after_generate()
\ No newline at end of file
+            print('Generate %s: %s-%s [{}s]' % (self.resource, from_size, created, using))
+        self.after_generate()