[lttng-dev] LTTng packages in Debian sid out of sync

[Jon Bernard]

* Mathieu Desnoyers <mathieu.desnoyers at efficios.com> wrote:
> ----- Original Message -----
> > From: "Jon Bernard" <jbernard at debian.org>
> > To: "Mathieu Desnoyers" <mathieu.desnoyers at efficios.com>
> > Cc: "Stéphane Graber" <stgraber at ubuntu.com>, "Alexandre Montplaisir" <alexmonthy at voxpopuli.im>,
> > lttng-dev at lists.lttng.org
> > Sent: Saturday, October 19, 2013 5:10:09 PM
> > Subject: Re: LTTng packages in Debian sid out of sync
> > 
> > * Mathieu Desnoyers <mathieu.desnoyers at efficios.com> wrote:
> > > Hi Jon,
> > > 
> > > We've had a couple of user reports about lttng versions not working in
> > > Debian.
> > > 
> > > I'm looking at the current Debian sid, and here is the situation:
> > > 
> > > http://packages.debian.org/sid/lttng-tools : version 2.1.1-2
> > > http://packages.debian.org/sid/utils/ltt-bin : version 2.1.1-2
> > > http://packages.debian.org/sid/lttng-modules-dkms : version 2.3.0-1
> > > 
> > > Although it's possible that lttng-modules 2.3.x will work with lttng-tools
> > > 2.1.x, this combination of versions is unsupported. We require that
> > > ust/tools/modules be updated in locked step between minor versions (2.1
> > > with
> > > 2.1, 2.2 with 2.2, and so on). Also, 2.1 is starting to be quite old: we're
> > > currently working on an upcoming 2.4, and the last version (2.3) provides
> > > lots
> > > of cool features including flight recorder tracing and snapshot support.
> > 
> > Yes, I do apologize for the current state.  My first priority was to resolve
> > the
> > blocked testing migration for ust and lttng-tools.  My upload yesterday seems
> > to
> > have resolved the last of the ust package issues, and so now I need only to
> > upload the remaining fixes for lttng-tools and the two should be eligible for
> > migration to testing.  I decided it would be easier to fix the migration
> > problem
> > first, and then update all of the versions to 2.3.x - it makes perfect sense
> > to
> > me as a packager, but I also see it's completely backwards from a user's
> > perspective.
> > 
> > Sid should have 2.3.x immediately and I will push these versions before the
> > weekend ends.
> > 
> > The migration is also very important to me, as Jessie will freeze soon.  I
> > will
> > continue on that front after 2.3.x is in sid.
> > 
> > Does this sound like a reasonable plan?
> 
> Hi Jon,
> 
> We seem to have a problem here. The pace of packaging on Debian currently does
> not seem to match our support cycle at all. You are currently targeting LTTng
> 2.1 for testing (and therefore next stable), while we specified a release
> policy back in August:
> http://lists.lttng.org/pipermail/lttng-dev/2013-August/021132.html which
> clearly states that we currently support LTTng 2.3, and only do security fix
> backports for 2.2. Therefore, 2.1 is clearly unsupported at this point.
> 
> I strongly advise to update packages in sid ASAP to LTTng 2.3, and we need to
> know how much time it takes to get it into testing, and figure out if it makes
> into the upcoming stable. I restate help offer on behalf of the LTTng
> community: if you lack time to update those packages, please let us know, and
> we will give a hand ensuring that those are updated in sid soon after the
> upstream releases.
> 
> Thoughts ?

That is not exactly what I intended to convey, let me be more direct about my
view.  I completely agree that sid should have 2.3.x immediately.  I also agree
that 2.3 should be targeted for testing, and therefore the next stable release.

Last night I uploaded a lttng-modules update (2.3.2).  Just earlier I uploaded
ust 2.3.0.  Once ust is accepted and available, I will upload lttng-tools 2.3.0
(since lttng-tools depends on ust to build successfully).  So I expect sid to
have a complete 2.3 suite very soon.  The only thing that will slow me down are
the ftp masters - ust saw a soname bump which introduces a new package and
therefore requires human intervention - this can take up to a week for
processing.

If all goes well, these packages will move to testing after 10 days, and will be
included in the next stable release.  There could be a problem with the testing
upgrade process, but that shouldn't be a difficult problem to solve.  I will try
to test the transition myself while I wait for the packages to land in sid.

In summary I think I'm very close to having everything in good order for both
sid and jessie.

Does this all make sense?

-- 
Jon