Only very small file uploads are successful

[djriversq]

I'm running LibreChat on ECS and have the RAG API correctly configured, however for whatever reason I am only able to upload very small files successfully.

For example, I have a 6KB docx file which uploads without issue, and I can see in the logs it is successfully being passed to the RAG API, then across to Bedrock and back. However, attempting with files such as a 19KB PDF, a 1MB docx file and other variants just fail to upload.

Console logs as shown below:

POST https://[REDACTED]/api/files 403 (Forbidden)

upload error 

{
    "message": "Request failed with status code 403",
    "name": "AxiosError",
    "stack": "AxiosError: Request failed with status code 403\n    at hb (https://[REDACTED]/assets/vendor.BQhDEHht.js:50:102204)\n    at XMLHttpRequest.g (https://[REDACTED]/assets/vendor.BQhDEHht.js:50:107189)\n    at Hb.request (https://[REDACTED]/assets/vendor.BQhDEHht.js:50:115369)",
    "config": {
        "transitional": {
            "silentJSONParsing": true,
            "forcedJSONParsing": true,
            "clarifyTimeoutError": false
        },
        "adapter": [
            "xhr",
            "http",
            "fetch"
        ],
        "transformRequest": [
            null
        ],
        "transformResponse": [
            null
        ],
        "timeout": 0,
        "xsrfCookieName": "XSRF-TOKEN",
        "xsrfHeaderName": "X-XSRF-TOKEN",
        "maxContentLength": -1,
        "maxBodyLength": -1,
        "env": {},
        "headers": {
            "Accept": "application/json, text/plain, */*",
            "Content-Type": "multipart/form-data",
            "Authorization": "Bearer [REDACTED]"
        },
        "signal": {},
        "method": "post",
        "url": "/api/files",
        "data": {}
    },
    "code": "ERR_BAD_REQUEST",
    "status": 403
}

No logs are output from any of my containers.

[djriversq]

Bumping this with some more context. A text file of 21 pages long and 7714 bytes in size succeeds, then adding a single letter to the end of the file, taking it up to 7723 bytes fails.

[frenzybiscuit]

the problem is I think the max tokens limit. that was the problem for me when this error happened.

So, did your problem get solved when you changed it?

well, not YOUR problem but you know what I mean!

[rubentalstra]

yes. I changed max token limit to 1 MIL and problem went away 💁

[frenzybiscuit]

yes. I changed max token limit to 1 MIL and problem went away 💁

Great.

Why is the token limit so small by default anyway? Probably should be bumped up to 8k by default.

[helgster77]

I'm having the same problem - which parameter in what file are you referring to with "max token limit"?

[frenzybiscuit]

I'm having the same problem - which parameter in what file are you referring to with "max token limit"?

[djriversq]

I fixed the issue. Turns out to be nothing at all to do with LibreChat, and instead was AWS WAF blocking files >8KB, see https://kloudle.com/academy/a-detailed-guide-on-protecting-against-the-8kb-aws-waf-limitation/.

[Snojo]

This turned out to be our issue as well. Thanks for nudging us in the right direction.