Thread:Project:Support desk/Special page slows down, this gets spammed into the web server log/reply (9)

I wasn't able to investigate the issue before. That user page is displaying the images for me now. Is the issue now resolved?

I see, however, that the URL of the file is different on that wiki than the URL in the shared repository.

Also, at the end of display "The following file is a duplicate of this file (...)", displaying exactly the same image.

Looking at Manual:$wgForeignFileRepos, apparently it's populated dynamically based on the value of other config variables (see the section Default value (code in Setup.php)). Maybe, to make it work with the SimpleFarm extension, you can try to set those variables instead of defining the $wgForeignFileRepos array. That way, the meta wiki should have $wgUseSharedUploads to false, while the other wikis should have it set to true.