I am improving the Xrootd cache monitoring on OSG, and I would like to check if the cache can provide a cached file and if the cache can fetch a file from the origin. To check the origin cache process, I want to delete a specific file on the cache and request this file on the client, in that way forcing the cache to fetch the origin file.

  I am deleting 4 files, two links, and two files related to this cached file. However, when I do that, the xrdcopy process hangs and timeout. So, I need to restart the cache to back to the regular operation. 

  What is the right way to force the cache to fetch a file on the origin?