File Upload Size Limit

Question

Is this configurable? What is it currently?

Mike Schmitt · Answer

Hi, 
 This is a very old thread by this point, just FYI. But no, there are no particular concerns beyond how much disk space will end up being used across all such uploads (since we get large, but not unlimited, disk space allotments in our cloud environments). But using up a little extra disk space doesn't automatically cause slowness by itself.

Mike Schmitt · Answer

I don't remember there being a system-side limit, as Appian can handle any file size that has any realistic chance of being successfully completely uploaded by an end-user before connection interruptions or timeouts occur (i.e. a few gigabytes). 
 Are you hoping to make a max size? This is trivially easy to do by way of on-form validations, IMHO.

Mike Schmitt · Answer

None that I know of. I'm fuzzy on the back-end mechanics but my theory is that, unlike file extension, Appian has no particular visibility into the size of a file fed into its file upload field until the upload has completed. At that point it's effectively too late to have a preemptive size limit (in the same vein that the extension requirements work per my limited understanding); and then it may as well be left up to designers to implement a systemwide size validation of their own design, and internally require everyone who uses a file upload field to include that global validation rule within their field validations. Again just conjecture on my part. 
 In any case -- I'd suggest if you have a strong use case for a max upload limit (i.e. configured in Admin Console next to the extension whitelist/blacklist), you submit it as a feature request with Appian.

jamesm881 · Answer

This link may also be useful: https://community.appian.com/discussions/f/general/10314/max-document-size-for-processing#:~:text=4%20years%20ago-,By%20default%2C%20the%20maximum%20file%20size%20allowed%20for%20upload%20into,properties%20with%20the%20resources 
 
 Appian has a ~1GB limit. There are ways to change that limit for on-prem implementations, though it is not recommended.

File Upload Size Limit

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