Hi Vincent.  Based on this q/a
https://forums.aws.amazon.com/thread.jspa?threadID=122410, and some others
I found, my first thought (hope) is that it either has to do with your
available disk space or your available memory.  Are you storing uploaded
files in your EC2 instance or in an S3 bucket? If the latter, I assume you
can rule out a disk space problem, because S3 doesn't really have limits on
that.  If the former, log into the EC2 instance and run df -h to see how
much available disk space you have.

If you know you have enough disk space, I'd try temporarily changing your
instance type to one with a lot more memory/RAM, and then trying the upload
again.

If you need to upgrade to a larger volume for more disk space, follow these
steps:

1. stop the instance
2. create a snapshot of the volume attached to it.
3. detach the volume
4. create new volume with a higher amount of gb, and choosing your new
snapshot
5. attach the new larger volume to the instance
6. restart the instance

Some of these steps take a few minutes on the AWS end of things, so it will
probably take about 30 minutes overall.

Let us know how it works!

Adam


On Thu, Aug 11, 2016 at 11:58 AM, Vincent Meijer <[email protected]> wrote:

> I am trying to upload a 'large' file (253 MB), but after about a minute of
> loading I get this error:
>
> DatabaseError at /resources/HERITAGE_RESOURCE.E18/related-files/ffc19bdb-
> 7f85-427c-b62c-23658e681217
>
> SSL SYSCALL error: EOF detected
>
>
>
> This only happens when I try it on my environment in the AWS cloud using 
> Firefox. It works fine using Chrome or using Firefox in a local development 
> env (laptop).
>
>
> Does anyone know where this error is coming from?
>
>
> I tried these Firefox settings, but no luck:
>
> accessibility.typeaheadfind.enabletimeout;false
>
> network.http.keep-alive.timeout;600
>
> network.http.connection-timeout;600
>
>
> Much appreciated!
>
> Vincent
>
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