[Flask] intermittent Internal Server Error on running flask site

[flaskee]

Any tips on this one folks?
(I am stuck)

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, November 12, 2019 10:14 AM, flaskee wrote:

> Hello all:
>
> I'm just looking for pointers on where to check, in order to track this down.
>
> The problem:
>
> I have a production flask site,
> on Apache /2.4.38; Debian 10.1, using a virtualized Python3.5/HTML5 site.
>
> It works well! except that every few days it crashes with an Internal Server Error - 500.
>
> When "crashed", the site itself is still loaded in Apache2,
> as
> nmap -A <my ip>
> nmap -sP <my ip>
> nmap -A <mydomain>
> nmap -sP <mydomain>
> all report the host is loaded;
> and other static sites running on the same apache server still serve up just fine.
>
> It does not *appear* to be a coding error,
> as when it is running,
> I have negotiated to each and every page in the site,
> without causing a crash.
>
> Still, randomly, the site fails.
>
> I have been through:
> * the web sites' error.log
> * the web sites' acess.log
> * /var/log/apache2/error.log
> * /var/log/apache2/error.log.1
> * /var/log/syslog
> and I'm not finding the cause.
>
> A
> sudo systemctl stop apache2.service
> sudo systemctl start apache2.service
> gets the site running again.
>
> Any tips on where else to check?
>
> Thank you!
>
> The Error
> Internal Server Error
> The server encountered an internal error or misconfiguration and was unable to complete your request.
>
> Please contact the server administrator at webmaster at mydomain.org to inform them of the time this error occurred, and the actions you performed just before this error.
>
> More information about this error may be available in the server error log.
>
> Sent with [ProtonMail](https://protonmail.com) Secure Email.
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