Open Stack

John-

	You're not the only one for whom the transition to systemd has been
painful.

	However...

	It *is* possible (some would argue just as easy) to do all things with
systemd that were done with screen.

	For starters, have you seen [1] ?

	Though looking at that again, I realize it could use a section on how
to do pdb - I'll propose something for that.  In the meantime, feel free
to find me in #openstack-dev and I can talk you through it.

[1] https://docs.openstack.org/devstack/latest/systemd.html

			Thanks,
			Eric Fried (efried)

On 09/07/2017 12:34 PM, John Griffith wrote:
> 
> 
> On Thu, Sep 7, 2017 at 11:29 AM, John Griffith <john.griffith8 at gmail.com
> <mailto:john.griffith8 at gmail.com>> wrote:
> 
>     Please don't, some of us have no issues with screen and use it
>     extensively for debugging.  Unless there's a viable option using
>     systemd I fail to understand why this is such a big deal.  I've been
>     using devstack in screen for a long time without issue, and I still
>     use rejoin that supposedly didn't work (without issue).
> 
>     I completely get the "run like customers" but in theory I'm not sure
>     how screen makes it much different than what customers do, it's
>     executing the same binary at the end of the day.  I'd also ask then
>     is devstack no longer "dev" stack, but now a preferred method of
>     install for running production clouds?  Anyway, I'd just ask to
>     leave it as an option, unless there's equivalent options for things
>     like using pdb etc.  It's annoying enough that we lost that
>     capability for the API services, is there a possibility we can
>     reconsider not allowing this an option?
> 
>     Thanks,
>     John
> 
>     On Thu, Sep 7, 2017 at 7:31 AM, Davanum Srinivas <davanum at gmail.com
>     <mailto:davanum at gmail.com>> wrote:
> 
>         w00t!
> 
>         On Thu, Sep 7, 2017 at 8:45 AM, Sean Dague <sean at dague.net
>         <mailto:sean at dague.net>> wrote:
>         > On 08/31/2017 06:27 AM, Sean Dague wrote:
>         >> The work that started last cycle to make devstack only have a
>         single
>         >> execution mode, that was the same between automated QA and
>         local, is
>         >> nearing it's completion.
>         >>
>         >> https://review.openstack.org/#/c/499186/
>         <https://review.openstack.org/#/c/499186/> is the patch that
>         will remove
>         >> screen from devstack (which was only left as a fall back for
>         things like
>         >> grenade during Pike). Tests are currently passing on all the
>         gating jobs
>         >> for it. And experimental looks mostly useful.
>         >>
>         >> The intent is to merge this in about a week (right before
>         PTG). So, if
>         >> you have a complicated devstack plugin you think might be
>         affected by
>         >> this (and were previously making jobs pretend to be grenade
>         to keep
>         >> screen running), now is the time to run tests against this
>         patch and see
>         >> where things stand.
>         >
>         > This patch is in the gate and now merging, and with it
>         devstack now has
>         > a single run mode, using systemd units, which is the same
>         between test
>         > and development.
>         >
>         > Thanks to everyone helping with the transition!
>         >
>         >         -Sean
>         >
>         > --
>         > Sean Dague
>         > http://dague.net
>         >
>         >
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> 
>         --
>         Davanum Srinivas :: https://twitter.com/dims
> 
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> 
> ​FWIW I realize my opinion doesn't count here particularly since this
> already merged, BUT I also realize that it didn't count before it merged
> either as the response I was given was "I don't use debuggers".  It's
> unfortunate, perhaps I'm really the only one that has counter opinions
> on things, or maybe nobody else wants to speak up, or maybe just nobody
> cares.  Either way, it's a bit of a bummer and just another thing on the
> list.  ​
> 
> 
> 
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