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最近,在安装了 VSTS 构建代理的情况下,我们的构建代理(2 台单独安装的运行 Windows 2016 的机器)遇到了一个恼人的问题。当我们运行时del "\\?\%CD%\nul" (请参阅超级用户),它适用于几个构建,然后再次出现。

这个文件是如何以及为什么创建的,我们如何确保构建代理不会中断?

下面的堆栈跟踪:

Failed to create Release artifact directory C:\agent\_work\r1\a with an exception
Microsoft.VisualStudio.Services.Agent.Worker.Release.Artifacts.ArtifactDirectoryCreationFailedException: Failed to create Release artifact directory 'C:\agent\_work\r1\a'. ---> System.UnauthorizedAccessException: Access to the path 'C:\agent\_work\r1\a\NUL' is denied.
   at System.IO.Win32FileSystem.DeleteFile(String fullPath)
   at System.IO.FileInfo.Delete()
   at Microsoft.VisualStudio.Services.Agent.Util.IOUtil.c__DisplayClass26_1.b__0(FileSystemInfo item)
   at System.Linq.Parallel.ForAllOperator`1.ForAllEnumerator`1.MoveNext(TInput& currentElement, Int32& currentKey)
   at System.Linq.Parallel.ForAllSpoolingTask`2.SpoolingWork()
   at System.Linq.Parallel.SpoolingTaskBase.Work()
   at System.Linq.Parallel.QueryTask.BaseWork(Object unused)
   at System.Linq.Parallel.QueryTask.RunTaskSynchronously(Object o)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot)
   --- End of inner exception stack trace ---
   at Microsoft.VisualStudio.Services.Agent.Worker.Release.ReleaseFileSystemManager.EnsureEmptyDirectory(String directoryPath, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.Services.Agent.Worker.Release.RetryExecutor.Execute(Action action). Retrying the creation of Release artifact directory.
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1 回答 1

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在我们的案例中,此问题的原因与构建代理无关。它是我们使用的测试运行程序(testcafe)的子模块,它创建了文件。调用此模块的包装器将 NUL 作为日志文件的名称传递......这在后面的处理中没有得到正确处理。

于 2018-02-09T07:34:37.967 回答