Hello Adam,

Thanks for your answer!
I have a cluster of arches Docker containers running in AWS ECS. For file 
storage I use Elastic File System, which (like S3) has also unlimited 
space, so we can rule that out.

Because the error only occurred in Firefox and not in Chrome I assumed it 
had nothing to do with AWS. I'm on the free tier, which allows EC2 
instances of only 1 GB memory, and at the moment I don't want to dig into 
the larger instances, especially because I am about to migrate my web 
containers to on-premise servers. These will be larger and will allow me to 
test further. Will report here. 

It will be an interesting hybrid environment with Django on-premise and 
postgres and elasticsearch in the cloud. :)

Thanks again,
Vincent

On Thursday, 11 August 2016 13:21:28 UTC-4, Adam Cox wrote:
>
> 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] 
> <javascript:>> 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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