We are having problems with user-uploaded file attachments disappearing. The files will appear for a while and then start returning 404s. I have not yet determined how/when they disappear, the one I’m specifically looking at right now was posted 12/17/2017.
The url looks right, like this, but the server returns a 404:
I just tried adding a picture to a post, and it’s displaying correctly. The url for that image (that returns a 200) is this:
(we use a subfolder installation)
I have multiple questions:
What might cause the pictures to “go missing”, and how can I troubleshoot / fix?
I’ve been having random problems with user uploaded images not working. Would you recommend moving to a subdomain installation instead of a subfolder install (it doesn’t seem to be the issue since it appears that the actual file is missing and not that there is a problem with the URL).
Would it be more stable to move to using S3 for user images? This post by @codinghorror suggests that it’s NOT a good idea:
But then this later post by @zogstrip says that the meta site’s images WERE moved to S3: