- 增加登录日志

- 增加数据库索引
- 修改原生安装文档

web/src/components/session/OfflineSession.js

@@ -474,20 +474,24 @@ class OfflineSession extends Component {
                            loading={this.state.loading}
                     />
 
-                    <Modal
-                        className='monitor'
-                        title="会话回放"
-                        centered
-                        visible={this.state.playbackVisible}
-                        onCancel={this.hidePlayback}
+                    {
+                        this.state.playbackVisible ?
+                            <Modal
+                                className='monitor'
+                                title="会话回放"
+                                centered
+                                visible={this.state.playbackVisible}
+                                onCancel={this.hidePlayback}
+
+                                width={window.innerWidth * 0.8}
+                                footer={null}
+                                destroyOnClose
+                                maskClosable={false}
+                            >
+                                <Playback sessionId={this.state.playbackSessionId}/>
+                            </Modal> : undefined
+                    }
 
-                        width={window.innerWidth * 0.8}
-                        footer={null}
-                        destroyOnClose
-                        maskClosable={false}
-                    >
-                        <Playback sessionId={this.state.playbackSessionId}/>
-                    </Modal>
                 </Content>
             </>
         );