Debian trixie - Apache2 - mod_fcgid 2.3.9 - MapServer

[Sebastiaan Couwenberg]

This is the second thread about this issue that loops in the Apache maintainers.

The first started here:

  https://alioth-lists.debian.net/pipermail/pkg-grass-devel/2025-December/117044.html

On 12/19/25 7:59 AM, Neubauer, Steffen (VermKV) via Pkg-grass-devel wrote:
> I have a problem with Debian 13 in the interaction of Apache2, FCGI and MapServer.
> The Apache2-FCGI-MapServer combination has always worked very well from Debian 7 to Debian 12!
> 
> 
> Migrating from Debian 12 to Debian 13 has caused problems with the Apache2 module mod_fcgi.
> In conjunction with MapServer processes, the RAM usage per FCGI process increases over time
> until the memory is written to swap, causing the VM to experience issues. I was only able
> to resolve this by closing the FCGI processes after 5-10 minutes instead of the usual 60 minutes.
> 
> 
> A VM has approximately 70-110 FCGI processes running. Previously, a process could manage with
> approximately 300 MB, but now I have seen processes that ran with more than 2 GB before I had to restart Apache.
> 
> 
> Is this behavior known for Apache2 (2.4.65-2)?
> Or is there a new parameter I'm unaware of?

Do you have the results with nginx?

  https://alioth-lists.debian.net/pipermail/pkg-grass-devel/2025-December/117047.html

Kind Regards,

Bas

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