[Samba] fuser calls create zombie processes on samba file server

[Rowland Penny]

On Mon, 8 Jan 2024 12:47:45 +0100
Gérard GUEVEL via samba <samba at lists.samba.org> wrote:

> Hello,
> 
>  
> 
> I want to relate a Samba client issue which could hide a Samba server
> issue.
> 
>  
> 
> For my own, three machines are involved :
> 
> A Samba version 4.18.6-Debian Active Directory DC server.
> 
> A Samba version 4.13.13-Debian Domain Member FILE server.
> 
> An Ubuntu 20.04.6 LTS BENCH server with a CIFS share mounted on FILE
> server.
> 
>  
> 
> A BENCH application run many threads which have to check the opened
> files each
> 
> second using a python fuser call. After about 5 hours, the FILE server
> claims that
> 
> too many files are opened and the max open files limit (16384) is
> reached.
> 
> The FILE server does not crash but remains exhausted to serve all
> other clients.
> 

Try setting 'deadtime' in your smb.conf, it defaults to 10080 minutes,
try something like 10 as a starting point, see if that helps.

Rowland