对于任何使用内置于 SQL Reporting Services 的集成网络服务器的人(因此 IIS 甚至可能没有安装在盒子上)，实际控制它的设置住在:

For anybody using the integrated webserver that is built into SQL Reporting Services (and hence IIS may not even be installed on the box), the setting to control this actually lives in:

C:\Program Files\Microsoft SQL Server\
         MSRS10_50.MSSQLSERVER\Reporting Services\ReportServer\rsreportserver.config

您的目录可能不同；版本 10_50 映射到 SQL 2008 R2.

Your directory may be different; version 10_50 maps to SQL 2008 R2.

您将寻找名为 RecycleTime 的设置.
默认值为 720(12 小时).将其设置为 0 将禁用.

You'll be looking for the setting called RecycleTime.
Default is 720 (12 hours). Setting it to 0 will disable.