错误：Portal for ArcGIS：Hosted/<Feature_Service>/FeatureServer：连接尝试失败

错误消息

在 ArcGIS Enterprise 中，当尝试在 ArcGIS Portal Map Viewer 或 ArcGIS Dashboards 中加载托管要素图层时，会间歇性地返回以下错误消息。

Error:
Hosted/<Feature_Service>/FeatureServer: The connection attempt failed.

在某些情况下，除了之前的错误消息外，托管 ArcGIS Server 日志中也会出现下述错误消息。

Error:
Hosted/<Feature_Service>/FeatureServer: Connection to <Machine_Name>:9876 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.

原因

安装在计算机上的防病毒程序会中断 ArcGIS Server 与关系数据存储之间的通信。

解决方案或解决方法

Warning:   
Consult the organization's IT personnel before proceeding with the workarounds.

配置防病毒例外

配置防病毒软件以排除与 ArcGIS 相关的某些进程或目录。 有关说明，请参阅 Microsoft：向 Windows 安全中心添加排除项。 有关其他信息，请下载 PDF 文件：PDF：为 ArcGIS Enterprise 主机配置防病毒软件的注意事项。 排除以下目录：

• ArcGIS Server 目录：

\arcgisserver\directories\arcgiscache\

\arcgisserver\directories\arcgisjobs\

\arcgisserver\directories\arcgisoutput\

\arcgisserver\directories\arcgissystem\

\arcgisserver\config-store\

• ArcGIS DataStore 目录：

\arcgisdatastore\pgdata\

\arcgisdatastore\nosqldata\

• Portal for ArcGIS 目录：

\arcgisportal\temp\

\arcgisportal\dsdata\

\portalforarcgis\content\arcgisportal\db\

\portalforarcgis\content\arcgisportal\index\

Note:
After completing the necessary tasks, reinstate the exempted directories.

禁用或移除防病毒程序

Warning:
Proceed with the following workaround with caution, as disabling or removing the antivirus program potentially exposes the machine to security risks.

禁用或移除 ArcGIS Enterprise 计算机上的防病毒程序。 有关说明，请参阅 Microsoft：在 Windows 安全中心中关闭 Defender 防病毒保护。

如果防病毒软件是第三方程序，请暂时将其禁用。

Note:
After completing the necessary tasks, reactivate the antivirus program, as it safeguards the machine from potential security threats. To reactivate Microsoft Defender, refer to Microsoft: Turn on Microsoft Defender Antivirus for instructions. If a third-party antivirus was disabled, reenable it.