diff --git a/frontend/src/App.vue b/frontend/src/App.vue
index 78d00f9..7238b3b 100644
--- a/frontend/src/App.vue
+++ b/frontend/src/App.vue
@@ -87,7 +87,6 @@ const theme = computed(() => {
         <n-message-provider>
             <n-dialog-provider>
                 <n-spin v-show="initializing" :theme-overrides="{ opacitySpinning: 0 }">
-                    <template #description>{{ $t('launching') }}</template>
                     <div id="launch-container" />
                 </n-spin>
                 <app-content v-if="!initializing" />
diff --git a/frontend/src/components/content/ContentPane.vue b/frontend/src/components/content/ContentPane.vue
index 3015602..4dda905 100644
--- a/frontend/src/components/content/ContentPane.vue
+++ b/frontend/src/components/content/ContentPane.vue
@@ -1,5 +1,5 @@
 <script setup>
-import { computed, onMounted, onUnmounted, ref } from 'vue'
+import { computed, onActivated, onMounted, onUnmounted, ref, watch } from 'vue'
 import { types } from '../../consts/support_redis_type.js'
 import ContentValueHash from '../content_value/ContentValueHash.vue'
 import ContentValueList from '../content_value/ContentValueList.vue'
@@ -60,6 +60,15 @@ const tab = computed(() =>
     }))
 )
 
+watch(
+    () => tabStore.nav,
+    (nav) => {
+        if (nav === 'structure') {
+            refreshInfo()
+        }
+    }
+)
+
 const tabContent = computed(() => {
     const tab = tabStore.currentTab
     if (tab == null) {
@@ -113,7 +122,7 @@ const onCloseTab = (tabIndex) => {
 
 <template>
     <div class="content-container flex-box-v">
-        <!--        <content-tab :model-value="tab"></content-tab>-->
+        <!--                <content-tab :model-value="tab"></content-tab>-->
         <n-tabs
             v-model:value="tabStore.activatedIndex"
             :closable="true"
@@ -130,7 +139,12 @@ const onCloseTab = (tabIndex) => {
 
         <div v-if="showServerStatus" class="content-container flex-item-expand flex-box-v">
             <!-- select nothing or select server node, display server status -->
-            <content-server-status v-model:auto-refresh="autoRefresh" :server="serverName" :info="serverInfo" />
+            <content-server-status
+                v-model:auto-refresh="autoRefresh"
+                :server="serverName"
+                :info="serverInfo"
+                @refresh="refreshInfo"
+            />
         </div>
         <div v-else-if="showNonexists" class="content-container flex-item-expand flex-box-v">
             <n-empty :description="$t('nonexist_tab_content')" class="empty-content">
diff --git a/frontend/src/components/content/ContentServerPane.vue b/frontend/src/components/content/ContentServerPane.vue
index 1cd1ae8..dc18db5 100644
--- a/frontend/src/components/content/ContentServerPane.vue
+++ b/frontend/src/components/content/ContentServerPane.vue
@@ -1,8 +1,8 @@
 <script setup>
 import AddLink from '../icons/AddLink.vue'
-import { useDialog } from 'naive-ui'
+import useDialogStore from '../../stores/dialog.js'
 
-const dialogStore = useDialog()
+const dialogStore = useDialogStore()
 </script>
 
 <template>
diff --git a/frontend/src/components/content_value/ContentServerStatus.vue b/frontend/src/components/content_value/ContentServerStatus.vue
index 992a10e..1b9e769 100644
--- a/frontend/src/components/content_value/ContentServerStatus.vue
+++ b/frontend/src/components/content_value/ContentServerStatus.vue
@@ -5,6 +5,7 @@ import Help from '../icons/Help.vue'
 import IconButton from '../common/IconButton.vue'
 import Filter from '../icons/Filter.vue'
 import { useI18n } from 'vue-i18n'
+import Refresh from '../icons/Refresh.vue'
 
 const props = defineProps({
     server: String,
@@ -12,8 +13,9 @@ const props = defineProps({
     autoRefresh: false,
 })
 
-const emit = defineEmits(['update:autoRefresh'])
+const emit = defineEmits(['update:autoRefresh', 'refresh'])
 
+const scrollRef = ref(null)
 const redisVersion = computed(() => {
     return get(props.info, 'redis_version', '')
 })
@@ -67,7 +69,6 @@ const totalKeys = computed(() => {
     })
     return sum(toArray(nums))
 })
-
 const infoList = computed(() => map(props.info, (value, key) => ({ value, key })))
 
 const i18n = useI18n()
@@ -92,9 +93,10 @@ const onFilterInfo = (val) => {
 </script>
 
 <template>
-    <n-scrollbar>
+    <n-scrollbar ref="scrollRef">
+        <n-back-top :listen-to="scrollRef" />
         <n-space vertical>
-            <n-card :theme-override1s="{ paddingMedium: '10px 20px 10px' }">
+            <n-card>
                 <template #header>
                     {{ props.server }}
                     <n-space inline size="small">
@@ -104,9 +106,19 @@ const onFilterInfo = (val) => {
                     </n-space>
                 </template>
                 <template #header-extra>
-                    <n-space inline size="small">
+                    <n-space inline align="center">
                         {{ $t('auto_refresh') }}
                         <n-switch :value="props.autoRefresh" @update:value="(v) => emit('update:autoRefresh', v)" />
+                        <n-tooltip>
+                            {{ $t('refresh') }}
+                            <template #trigger>
+                                <n-button tertiary circle size="small" @click="emit('refresh')">
+                                    <template #icon>
+                                        <n-icon :component="Refresh" />
+                                    </template>
+                                </n-button>
+                            </template>
+                        </n-tooltip>
                     </n-space>
                 </template>
                 <n-grid x-gap="5" style="min-width: 500px">
@@ -138,7 +150,7 @@ const onFilterInfo = (val) => {
             </n-card>
             <n-card :title="$t('all_info')">
                 <template #header-extra>
-                    <n-input v-model:value="infoFilter" @update:value="onFilterInfo" placeholder="">
+                    <n-input v-model:value="infoFilter" @update:value="onFilterInfo" placeholder="" clearable>
                         <template #prefix>
                             <icon-button :icon="Filter" size="18" />
                         </template>
diff --git a/frontend/src/langs/en.json b/frontend/src/langs/en.json
index a8ce889..083c44c 100644
--- a/frontend/src/langs/en.json
+++ b/frontend/src/langs/en.json
@@ -1,6 +1,5 @@
 {
   "lang_name": "English",
-  "launching": "Launching...",
   "confirm": "Confirm",
   "cancel": "Cancel",
   "success": "Success",
@@ -134,6 +133,7 @@
   "help": "Help",
   "check_update": "Check for Updates...",
   "auto_refresh": "Auto Refresh",
+  "refresh": "Refresh",
   "uptime": "Uptime",
   "connected_clients": "Clients",
   "total_keys": "Keys",
diff --git a/frontend/src/langs/zh-cn.json b/frontend/src/langs/zh-cn.json
index 2afd052..7c22416 100644
--- a/frontend/src/langs/zh-cn.json
+++ b/frontend/src/langs/zh-cn.json
@@ -1,6 +1,5 @@
 {
   "lang_name": "简体中文",
-  "launching": "启动中...",
   "confirm": "确认",
   "cancel": "取消",
   "success": "成功",
@@ -137,6 +136,7 @@
   "help": "帮助",
   "check_update": "检查更新...",
   "auto_refresh": "自动刷新",
+  "refresh": "立即刷新",
   "uptime": "运行时间",
   "connected_clients": "已连客户端",
   "total_keys": "键总数",
diff --git a/frontend/src/stores/connections.js b/frontend/src/stores/connections.js
index caef830..2965df5 100644
--- a/frontend/src/stores/connections.js
+++ b/frontend/src/stores/connections.js
@@ -299,6 +299,10 @@ const useConnectionStore = defineStore('connections', {
                 return false
             }
 
+            const dbs = this.databases[name]
+            for (const db of dbs) {
+                this.nodeMap[`${db.name}#${db.db}`]?.clear()
+            }
             delete this.databases[name]
             delete this.serverStats[name]
 
@@ -317,6 +321,7 @@ const useConnectionStore = defineStore('connections', {
             }
 
             this.databases = {}
+            this.serverStats = {}
             const tabStore = useTabStore()
             tabStore.removeAllTab()
         },
@@ -419,7 +424,7 @@ const useConnectionStore = defineStore('connections', {
             dbs[db].children = undefined
             dbs[db].isLeaf = false
 
-            delete this.nodeMap[`${connName}#${db}`]
+            this.nodeMap[`${connName}#${db}`]?.clear()
         },
 
         /**
@@ -564,10 +569,9 @@ const useConnectionStore = defineStore('connections', {
             if (this.nodeMap[`${connName}#${db}`] == null) {
                 this.nodeMap[`${connName}#${db}`] = new Map()
             }
-            // construct tree node list, the format of item key likes 'server/db#type/key'
+            // construct a tree node list, the format of item key likes 'server/db#type/key'
             const nodeMap = this.nodeMap[`${connName}#${db}`]
             const rootChildren = dbs[db].children
-            let count = 0
             for (const key of keys) {
                 const keyPart = split(key, separator)
                 // const prefixLen = size(keyPart) - 1