[urbanecm@mwmaint1002 ~/upload]$ mwscript importImages.php --wiki=commonswiki --user=Yann --overwrite .
Importing Files

शिल्पकार चरित्रकोश खंड २ - साहित्य.pdf exists, overwritinfailed. (at recordUpload stage)

Found: 1
Failed: 1
[urbanecm@mwmaint1002 ~/upload]$

Since this doesn't explain the bug, I'm creating a subtask and tagging SRE to have a SRE who can help me with finding/fixing the issue.

PS: What is the preferred way to report this to the SREs by the SREs? I tried tagging SRE at the upload task, and creating a new one, and the former didn't get an attention from the clinic duty SRE. While that might be that SRE's mistake, I'd like to know what is preferred, to stick with one (preferred) way. Also, are logs explaining the bug in logstash (and I don't see them), or are they excluded from logstash? In another words, can deployers/those with logstash access learn the issue themselves without SREs?