diff --git a/include/neuron/plugin.h b/include/neuron/plugin.h
index 35ab6a66..98c711f5 100644
--- a/include/neuron/plugin.h
+++ b/include/neuron/plugin.h
@@ -46,8 +46,6 @@ typedef struct neu_plugin_common {
     char                       name[NEU_NODE_NAME_LEN];
 
     neu_node_link_state_e link_state;
-    uint16_t              tag_size;
-    uint32_t              tag_all_size;
 
     zlog_category_t *log;
 } neu_plugin_common_t;
diff --git a/src/adapter/driver/driver.c b/src/adapter/driver/driver.c
index 61dd7058..d557b0b2 100644
--- a/src/adapter/driver/driver.c
+++ b/src/adapter/driver/driver.c
@@ -492,7 +492,6 @@ int neu_adapter_driver_del_group(neu_adapter_driver_t *driver, const char *name)
     if (find != NULL) {
         HASH_DEL(driver->groups, find);
 
-        uint16_t tag_size = neu_group_tag_size(find->group);
         neu_adapter_del_timer((neu_adapter_t *) driver, find->report);
         neu_event_del_timer(driver->driver_events, find->read);
         if (find->grp.group_free != NULL) {
@@ -510,8 +509,6 @@ int neu_adapter_driver_del_group(neu_adapter_driver_t *driver, const char *name)
         neu_group_destroy(find->group);
         free(find);
 
-        neu_plugin_to_plugin_common(driver->adapter.plugin)->tag_size -=
-            tag_size;
         neu_adapter_del_group_metrics(&driver->adapter, name);
         ret = NEU_ERR_SUCCESS;
     }
@@ -603,7 +600,6 @@ int neu_adapter_driver_add_tag(neu_adapter_driver_t *driver, const char *group,
     ret = neu_group_add_tag(find->group, tag);
 
     if (ret == NEU_ERR_SUCCESS) {
-        neu_plugin_to_plugin_common(driver->adapter.plugin)->tag_size += 1;
         neu_adapter_update_group_metric(&driver->adapter, group,
                                         NEU_METRIC_GROUP_TAGS_TOTAL,
                                         neu_group_tag_size(find->group));
@@ -626,7 +622,6 @@ int neu_adapter_driver_del_tag(neu_adapter_driver_t *driver, const char *group,
     }
 
     if (ret == NEU_ERR_SUCCESS) {
-        neu_plugin_to_plugin_common(driver->adapter.plugin)->tag_size -= 1;
         neu_adapter_update_group_metric(&driver->adapter, group,
                                         NEU_METRIC_GROUP_TAGS_TOTAL,
                                         neu_group_tag_size(find->group));
@@ -1143,14 +1138,3 @@ static void read_group(int64_t timestamp, int64_t timeout,
         }
     }
 }
-
-uint16_t neu_adapter_driver_tag_size(neu_adapter_driver_t *driver)
-{
-    return neu_plugin_to_plugin_common(driver->adapter.plugin)->tag_size;
-}
-
-void neu_adapter_driver_set_all_tag_size(neu_adapter_driver_t *driver,
-                                         uint32_t              size)
-{
-    neu_plugin_to_plugin_common(driver->adapter.plugin)->tag_all_size = size;
-}
\ No newline at end of file
diff --git a/src/adapter/driver/driver_internal.h b/src/adapter/driver/driver_internal.h
index c9c49c06..04afedcc 100644
--- a/src/adapter/driver/driver_internal.h
+++ b/src/adapter/driver/driver_internal.h
@@ -61,7 +61,4 @@ void neu_adapter_driver_get_value_tag(neu_adapter_driver_t *driver,
                                       const char *group, UT_array **tags);
 UT_array *neu_adapter_driver_get_read_tag(neu_adapter_driver_t *driver,
                                           const char *          group);
-uint16_t  neu_adapter_driver_tag_size(neu_adapter_driver_t *driver);
-void      neu_adapter_driver_set_all_tag_size(neu_adapter_driver_t *driver,
-                                              uint32_t              size);
 #endif
diff --git a/src/base/neu_plugin_common.c b/src/base/neu_plugin_common.c
index c9920971..5616d05e 100644
--- a/src/base/neu_plugin_common.c
+++ b/src/base/neu_plugin_common.c
@@ -31,7 +31,6 @@ void neu_plugin_common_init(neu_plugin_common_t *common)
 {
     common->magic      = NEU_PLUGIN_MAGIC_NUMBER;
     common->link_state = NEU_NODE_LINK_STATE_DISCONNECTED;
-    common->tag_size   = 0;
 }
 
 bool neu_plugin_common_check(neu_plugin_t *plugin)
diff --git a/src/core/manager_internal.c b/src/core/manager_internal.c
index 63cc65ed..0835393a 100644
--- a/src/core/manager_internal.c
+++ b/src/core/manager_internal.c
@@ -138,28 +138,6 @@ UT_array *neu_manager_get_driver_group(neu_manager_t *manager)
     return driver_groups;
 }
 
-void neu_manager_count_tag(neu_manager_t *manager)
-{
-    UT_array *drivers =
-        neu_node_manager_get_adapter(manager->node_manager, NEU_NA_TYPE_DRIVER);
-    uint32_t all_size = 0;
-
-    utarray_foreach(drivers, neu_adapter_t **, p_driver)
-    {
-        uint16_t size =
-            neu_adapter_driver_tag_size((neu_adapter_driver_t *) (*p_driver));
-        all_size += (uint32_t) size;
-    }
-
-    utarray_foreach(drivers, neu_adapter_t **, p_driver)
-    {
-        neu_adapter_driver_set_all_tag_size(
-            (neu_adapter_driver_t *) (*p_driver), all_size);
-    }
-
-    utarray_free(drivers);
-}
-
 int neu_manager_subscribe(neu_manager_t *manager, const char *app,
                           const char *driver, const char *group)
 {
diff --git a/src/core/manager_internal.h b/src/core/manager_internal.h
index e404b378..bda25c49 100644
--- a/src/core/manager_internal.h
+++ b/src/core/manager_internal.h
@@ -57,8 +57,6 @@ UT_array *neu_manager_get_nodes(neu_manager_t *manager, neu_node_type_e type,
 
 UT_array *neu_manager_get_driver_group(neu_manager_t *manager);
 
-void neu_manager_count_tag(neu_manager_t *manager);
-
 int       neu_manager_subscribe(neu_manager_t *manager, const char *app,
                                 const char *driver, const char *group);
 int       neu_manager_unsubscribe(neu_manager_t *manager, const char *app,