samba - May 2013 - [samba4] smbd processes never die after logoff

Hello,

I'm using Samba 4.0.5 in Debian Wheezy as a member server of a DC (in Debian
Wheezy too with Samba 4.0.5) and the clients are Windows7 Pro. The users use
shares in the member server.

Sometimes, after the logoff of the users in the Win7 clients, there are
connections with the member server whiches never stop. I can see it with the
"smbstatus" command which point PID out to me and indeed with the ? ps
aux | grep smbd ? I can see smbd processes whiches never die.

I have try this in the smb.conf file :

   deadtime = 10
   socket options = TCP_NODELAY SO_KEEPALIVE

But it doesn't work. This is a embarrassing problem for me because it takes
resources of the server.

Thanks in advande for your help.

PS: here is my smb.conf for the member server :

[global]

   workgroup = MYDOMAIN
   security = ADS
   realm = MYDOMAIN.PRIV
   encrypt passwords = yes

   idmap config *:backend = tdb
   idmap config *:range = 70001-80000

   winbind trusted domains only = no
   winbind use default domain = yes
   winbind enum users  = yes
   winbind enum groups = yes
   winbind cache time = 300

   deadtime = 10
   socket options = TCP_NODELAY SO_KEEPALIVE


[myhome]
    path = /home/%U
    hide files = *.ini/*.INI/*.bin/*.BIN/desktop - Raccourci.lnk/~*/
    read only = No
    browseable = Yes

[admhomes]
    path = /home
    read only = No
    browseable = Yes
    valid users = administrator
    admin users = administrator

-- 
Fran?ois Lafont

Just one detail,

Le 24/05/2013 03:15, Fran?ois Lafont wrote :
> indeed with the ? ps aux | grep smbd ? I can see smbd processes whiches
never die.
Of course, with:

kill PID

the processes die. But if I don't use the "kill" command some
processes never die although all users are disconnected of the Windows seven
clients.

-- 
Fran?ois Lafont

On Fri, May 24, 2013 at 03:15:03AM +0200, Fran?ois Lafont
wrote:
> Hello,
> 
> I'm using Samba 4.0.5 in Debian Wheezy as a member server of a DC (in
Debian Wheezy too with Samba 4.0.5) and the clients are Windows7 Pro. The users
use shares in the member server.
> 
> Sometimes, after the logoff of the users in the Win7 clients, there are
connections with the member server whiches never stop. I can see it with the
"smbstatus" command which point PID out to me and indeed with the ? ps
aux | grep smbd ? I can see smbd processes whiches never die.
> 
> I have try this in the smb.conf file :
> 
>    deadtime = 10
>    socket options = TCP_NODELAY SO_KEEPALIVE
Can you try to add the socket options

TCP_KEEPIDLE=120 TCP_KEEPINTVL=10 TCP_KEEPCNT=5

This should make the sessions go away more quickly in case
the clients just go away.

Volker

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