vibed services stop response after several days of work

[Suliman via Digitalmars-d-learn]

On Friday, 1 September 2017 at 08:01:24 UTC, Suliman wrote:
> I got same problem on Windows Server 2016 and on Linux Debian 
> 8.5.
> I have few very simple backend based on vibed 0.8.1, compiler 
> dmd 2.075.1.
>
> nginx servise is do port forwarding. Nothing more is used.
>
> After several days of working I am begining to get "502 Bad 
> Gateway" error. The service is not down, it's continue to 
> working, but on Windows task manager I seen very low memory 
> usage (0.4MB) and on Linux I see next: 
> https://snag.gy/ban3jX.jpg (i am not familiar with Linux and do 
> not sure if process is alive or not because htop do not show it)
>
> The code is *very* simple https://github.com/bubnenkoff/dlang.ru
>
> Is there any ideas how to diagnostic the problem?

I got error https://paste.ofcode.org/exCL5S2vbp6qhYBqj7v6ez

Is it's issue with libevent?

Does even-loop depend on used OS?