Attachement of "big" files

Support System Administrator
1

I have a strange behavior, probably due to a configuration of the server, but i do not know where to search.
when i attach a file of 10Mo for a party. The files is create, it exists on the filesystem (as a real functional file) seen with the good size in the attachments ui, but no way to see it (erreur applicative) no lines of explanation. it works fine with a 1Mo file
On my local dev configuration pc (the same file is ok. i suspect some kind of “too large to be shown” on the server, some kind of configuration somewhere.
Does someone has an idea ?

2

Check the server logs.

3

thanks :slight_smile: happy new year 2026

apache says
[substitute:error] [pid 3254367:tid 3254367] [client 91.170.229.179:13098] AH01328: Line too long, URI /tryton/, referer: https://erp…

I found that :

https://blogs.reliablepenguin.com/2025/10/15/fixing-apache-ah01328-line-too-long-with-mod_substitute

i found the culprit : in my reverse proxy

<Location />
SubstituteMaxLineLength 10M

I am sorry not checking logs first /o\

4

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