Bug#385308: [Pkg-xen-devel] Bug#385308: Please provide way to run xend in the foreground, without daemonizing

[Andras Korn]

On Wed, Aug 30, 2006 at 03:08:21PM +0200, Bastian Blank wrote:

> On Wed, Aug 30, 2006 at 02:21:07PM +0200, Andras Korn wrote:
> > it would be nice to run xend under the supervision of runit. xenconsoled and
> > xenstored already provide relevant switches (-i and --no-fork).
> 
> They are started by xend, so please provide concret informations.

I'm not sure in what way I wasn't specific enough, but anyway:

What I do now is run xenconsoled and xenstored from runit, but xend still
has to be started the System V init way. I'd like to run that under runit
too.

root      3953  Ss   11:26   0:00 runsvdir -P /var/service log: ...........
[...]
root      3549  Ss   14:55   0:00  \_ runsv xenconsoled
log       3626  S    14:55   0:00  |   \_ svlogd -t /var/log/sv/xenconsoled
root      3847  Sl   14:57   0:00  |   \_ /usr/sbin/xenconsoled -i
root      3840  Ss   14:57   0:00  \_ runsv xenstored
log       3841  S    14:57   0:00  |   \_ svlogd -t /var/log/sv/xenstored
root      3843  S    14:57   0:00  |   \_ /usr/sbin/xenstored --no-fork
root      5271  S    15:26   0:00 python /usr/sbin/xend start
root      5272  Sl   15:26   0:00  \_ python /usr/sbin/xend start

This way xend doesn't start them, because they are already running by the
time xend starts. (xend stop doesn't stop them in either case, which might
be a bug, btw.)

I can now do this:

# sv status xenconsoled
run: xenconsoled: (pid 3847) 3253s; run: log: (pid 3626) 3350s

And runit restarts xenconsoled for me should it ever crash. Same for
xenstored.

I don't know enough about the architecture of xen to say whether it would be
better to have xenconsoled and xenstored started by xend or not, I just know
I'd like to get away from System V init and use runit to the extent
possible. AFAICT now, having a "foreground" argument to xend (instead of
"start") is all that's needed.

Andras

-- 
                 Andras Korn <korn at chardonnay.math.bme.hu>
                 <http://chardonnay.math.bme.hu/~korn/>	QOTD:
                    Southern DOS:  Y'all reckon? (yep/Nope)