[Samba] samba_dlz shutting down on named reload

[Ian Coetzee]

On 17 January 2018 at 16:00, Kristján Valur Jónsson via samba <
samba at lists.samba.org> wrote:

> Well, I had a cursory glance dlz_bind9.c and also the bind9 source code I
> could find (
> http://users.isc.org/~each/doxygen/bind9/dlz__dlopen__driver
> _8c-source.html)
> and didn´t see any provision for 'reload' in there.
> bind is clearly calling the dlz_destroy() function and not dlz_create(), as
> one would expect, for a reload.
> So yes, it appears to be a shortcoming of bind.
> 1) I suggest that the wiki for AD DC be updated to point out this fact.
> logrotate scripts may use 'reload' which may be broken.  a 'restart' is
> better in that case.
> 2) I'll report this defect to the ISC.
>
> On 17 January 2018 at 13:30, Kristján Valur Jónsson <kristjan at rvx.is>
> wrote:
>
> > To a user, samba_dlz just doesn't work correctly with bind.  There are
> two
> > obvious options
> > a) bind is broken somehow and unloads all modules when reloading
> > b) samba_dlz is somehow broken in the way that it interfaces with bind,
> > perhaps it misinterprets the signal to 'reload' when it receives it from
> > bind.
> >
> > As a user, i have no way of knowing which is it is, all that I know is
> > that sabma_dlz does not work correctly in a specific setting.  Hence, the
> > samba bug tracker is the right place to report that.
> > I would expect the samba developers, who know how to build a bind plugin,
> > to be able to verify if they are implementing the bind API protocol
> > correctly, and if so, take it upon themselves, having intimate knowledge
> of
> > its implementation, get in touch with the authors of bind, to see why
> their
> > software doesn't work as advertised.
> > At any rate, I would expect a comment on the defect to happen during
> > defect triage.  There is a triage process, right?
> >
> > On 17 January 2018 at 10:11, Rowland Penny via samba <
> > samba at lists.samba.org> wrote:
> >
> >> On Wed, 17 Jan 2018 09:52:56 +0000
> >> Kristján Valur Jónsson via samba <samba at lists.samba.org> wrote:
> >>
> >> > Well, I created a bug report for this issue.
> >> > Seems that none of the developers has picked up on it.
> >> > https://bugzilla.samba.org/show_bug.cgi?id=13214
> >> >
> >> >
> >>
> >> Probably because you have reported it in the wrong place, this
> >> is undoubtedly a Bind bug.
> >>
> >> Rowland
> >>
> >>
> >> --
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> >>
> >
> >
> >
> > --
> > Kv,
> > Kristján Valur Jónsson, RVX
> >
>
>
>
> --
> Kv,
> Kristján Valur Jónsson, RVX
> --
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>

Hi Kristjan,

This sounds like the issue I have as per https://lists.samba.org/
archive/samba/2017-October/211662.html

My logrotate does a service named reload though.

I will try swapping my reload for restart and see if that fixes things.

Thank you for your legwork.

Kind regards