[Samba] Ram saturation problem

[Rowland penny]

On 26/04/2021 17:36, Rémi PAETA via samba wrote:
> Hello everybody,
>
> I am contacting you because I am having a problem with one of my 3 
> domain controllers.
> I am having a problem with processes that keep adding up and 
> eventually fill up the RAM memory .
> I can't find anything in the logs that would allow me to determine why.
> Here is an example:
> (extract from htop)
>
> 1162 root       20   0 1031M 51084 25688 S  0.0  0.8  3:50.59 │ ├─ 
> samba: task[dcesrv]
> 2607 root       20   0 1031M 47532 22136 S  0.0  0.8  0:00.07 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2607]
> 2481 root       20   0 1031M 44816 19420 S  0.0  0.7  0:00.05 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2481]
> 2476 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.03 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2476]
> 2475 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.03 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2475]
> 2444 root       20   0 1031M 50732 25336 S  0.0  0.8  0:00.06 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2444]
> 2429 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.03 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2429]
> 2428 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.03 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[2428]
> 1872 root       20   0 1031M 49448 24052 S  0.0  0.8  0:00.03 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[1872]
> 1843 root       20   0 1031M 50732 25336 S  0.0  0.8  0:00.04 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[1843]
> 1812 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.04 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[1812]
> 1811 root       20   0 1031M 52648 27252 S  0.0  0.9  0:00.04 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[1811]
> 1608 root       20   0 1031M 53996 28600 S  0.0  0.9  0:00.04 │ │  ├─ 
> samba: conn[named_pipe] c[unix:] 
> s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[1608] 
>                                            551 root       20   0 1031M 
> 51088 25692 S  0.0  0.8  0:00.09 │  │  └─ samba: conn[named_pipe] 
> c[unix:] s[unix:/var/run/samba/ncalrpc/np/netlogon] server_id[551]
>
> I use Samba 4.10.17 on Debian Stretch
> Do you have any idea where the problem may be coming from please?
>
> Thank you for your help :-)
>

The first thing I would recommend is to upgrade your OS and then use 
Samba from here: https://apt.van-belle.nl/

If you have found a problem/bug, you will have no chance of getting in 
fixed in your version, indeed it may already have been fixed in a later 
version.

If you still have the problem after upgrading, then post again with your 
smb.conf

Rowland