Affected wiki(s): Enwiki
Diff(s) (if applicable): https://en.wikipedia.org/w/index.php?title=Tragic_mulatto&diff=prev&oldid=1175029780
What is happening?: 504 Gateway Time-out
nginx
What should happen instead?: Normal bot activity
List of steps to reproduce (step by step, including full links if applicable):
Other information:
Down for hours