闪亮的应用程序无法启动闪亮的服务器

Question

我想部署Shiny应用程序Shiny server但无法从本地服务器URL访问应用程序.

这是输出/var/log/shiny-server.log:

[2016-04-11 21:39:24.302] [INFO] shiny-server - Starting listener on 0.0.0.0:3838
[2016-04-11 21:42:29.564] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:42:29.570] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:43:15.156] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:43:15.163] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:43:28.593] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:43:28.604] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:43:54.549] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:51:52.528] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:52:20.004] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:52:20.020] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:52:26.843] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:56:10.938] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.
[2016-04-11 21:56:10.946] [INFO] shiny-server - Error getting worker: Error: The application exited during initialization.

问题是什么？

Answer 1

当我的 R 代码失败时，我曾经遇到过这种情况。由于我在 Windows 机器上编写 R 代码并在 ubuntu 上运行闪亮的服务器，因此某些软件包在 Windows 上运行良好，但在 ubuntu 中失败，或者如果我忘记在 ubuntu 机器上安装该软件包。要找出发生这种情况的时间，您必须转到应用程序日志而不是服务器日志。

应该有一个特定于您的应用程序的日志：

\var\log\shiny-server\YourAppName-20191112-170851-44977.log

应用程序名称后面的数字与应用程序尝试运行的时间戳有关。如果特定包或 R 代码存在任何错误导致应用程序失败，此日志文件将包含 R 输出。

Answer 2

也许你可以在这里看看。
我会重点关注这个错误

[2016-04-11 21:39:24.302] [INFO]闪亮服务器 - 在 0.0.0.0:3838 上启动侦听器

在提供的链接上，您会发现几个用户双重检查了权限：端口 3838 和闪亮的服务器。

此外，我建议您看一下本指南。
通过遵循它，我能够在 Ubuntu RStudio 服务器上运行我的闪亮应用程序。