Unable to increase upload size above 2GB Matrix

[Muhanand]

Hello, I trying to change the max uplaod size in a matrix server. I have set the max upload size to around 10gb but whenever I upload anything that is above 2gb it fails saying "The file 'name' failed to upload."
I tried to change it to 5gb or even 3gb in the homeserver.yaml file but it just fails.
Is there anyway to fix this

Thank you

[nebulon]

Do you have any more error information which helps to triage this further?

[Muhanand]

Here is the logs when I try to upload a file https://paste.ubuntu.com/p/Tn8ByHVWkB/

is there anything else that I should change other than the 'homeserver.yaml" file?

[nebulon]

For some reason I can't reach the ubuntu.com paste url. I get a 502 error. You could use https://paste.cloudron.io/ as well.

[Muhanand]

https://paste.cloudron.io/afojegabov.apache

[Muhanand]

Here is another try (this one is cleaner)
https://paste.cloudron.io/igazinamek.apache

[nebulon]

hm yeah nothing much to be seen in those logs about the failing upload. Has anyone else here succeeded to increase upload size to such values?

[girish]

Just to double check, you are adjusting the max_upload_size in /app/data/configs/homeserver.yaml correct ? Did you also restart the app after you changed it?

Also, to check the obvious, is your synapse server hosted on Cloudron ?

[Muhanand]

yes, using element desktop and web as the client. cloudron using Ubuntu 22.04
had to restart to be able to try to upload a larger file or it will say file is too big

[girish]

@Muhanand said in Unable to increase upload size above 2GB Matrix:

had to restart to be able to try to upload a larger file or it will say file is too big

does this mean, it works now?

[Muhanand]

It still doesn't work, it just shows a different error
before restart

after restart (changes to homeserver.yaml applied)

Steps to reproduce, install matrix
modify "max_upload_size:" to something above 2gb in homeserver.yaml

[luckow]

quick question: What is the purpose of uploading such large files?

[girish]

@Muhanand looks like a known problem . See https://github.com/element-hq/synapse/issues/12023

[Muhanand]

@luckow video files

[girish]

@Muhanand I think luckow means to ask why upload such large files to a chat , instead of say some filehosting program like say nextcloud

[Muhanand]

@girish family group chats
telegram used to allow 20gb now it's 2gb still not bad

[robi]

Might be best to link in chat to videos hosted on peertube or similar. Then transcoding can happen and other video optimizations based on device.

[Muhanand]

@girish said in Unable to increase upload size above 2GB Matrix:

@Muhanand looks like a known problem . See https://github.com/element-hq/synapse/issues/12023

seems to be the same, it didn't work in a e2e room, but started the upload in an unencrypted room, still failed but it started.
I setup a matrix server without cloudron a couple months ago and it didn't have this issue
don't know if this is from synapse or cloudron tbh

[girish]

@Muhanand per the bug report, it fails for encrypted and unencrypted rooms (in the description of the issue).

[Muhanand]

@girish Thank you, seems to be a bug with Synapse then