Process hierarchy on a DC?

[Andrew Bartlett]

On Thu, 2017-04-27 at 12:40 +0200, vl at samba.org wrote:
> On Thu, Apr 27, 2017 at 10:15:43PM +1200, Andrew Bartlett via samba-
> technical wrote:
> > On Thu, 2017-04-27 at 12:04 +0200, vl--- via samba-technical wrote:
> > > 24963 ?        Ss     0:00 bin/samba
> > > 24964 ?        S      0:00  \_ bin/samba
> > > 24969 ?        S      0:00 bin/samba
> > > 24971 ?        Ss     0:00  \_ /root/samba/bin/smbd -D --
> > > option=server role check:inhibit=yes --foreground
> > > 24991 ?        S      0:00      \_ /root/samba/bin/smbd -D --
> > > option=server role check:inhibit=yes --foreground
> > > 24979 ?        S      0:00 bin/samba
> > > 24981 ?        Ss     0:00  \_ /root/samba/bin/winbindd -D --
> > > option=server role check:inhibit=yes --foreground
> > > 24990 ?        S      0:00      \_ /root/samba/bin/winbindd -D --
> > > option=server role check:inhibit=yes --foreground
> > > 
> > > I think I remember that in the past this was all located under
> > > one
> > > "samba" process, now the winbind and smbd parents are themselves
> > > children of init. I could stop the DC with a single kill, now
> > > it's
> > > three.
> > 
> > I would hope the pipes connecting them would help ensure it remains
> > a
> > single kill, but I agree, that does not seem right. 
> 
> When killing (in the above case) process 24963, the others crash.

As in exit, or crash hard in some way?

> > > Just curious: Why was this changed?
> > 
> > More to the point, when did it change?  Perhaps bisect it?
> 
> Apologies for asking without having done a deep and thorough analysis
> first. Sorry for the noise, next time I will come up with a commit
> hash that changed this behaviour.

Volker,

It is always worth asking first - you never know can imagine what
others already suspect or remember.  In this case you have a valuable
clue:  this wasn't intended to change!

Thanks,

Andrew Bartlett
-- 
Andrew Bartlett                       http://samba.org/~abartlet/
Authentication Developer, Samba Team  http://samba.org
Samba Developer, Catalyst IT          http://catalyst.net.nz/services/samba