[ros-release] Preparting Hydro and Indigo Syncs

[Tully Foote]

Hi Gijs,

You're right there's not much you can do at the moment. The reason for the
emails is that your packages get rebuilt any time a dependency gets
released. There's been quite a few medium to low level dependencies
released recently:
https://github.com/ros/rosdistro/pulls?utf8=%E2%9C%93&q=is%3Apr+is%3Aclosed+hydro

The ccache permissions error is something we've never been able to track
down. https://github.com/ros-infrastructure/buildfarm/issues/174 You're
right there's nothing you can do about it. It happens relatively
infrequently compared to the number of builds we run, but even a 1 in 1000
error triggers several times when we build 1500 packages across 6 to 8
arches.

The missing dependencies happens when a build sweep gets interrupted by a
new release.

We've entirely restructured the buildfarm and are running a test version in
parallel working on building in robustness to many of these errors and race
conditions. One of our main goals is to avoid as many false positive emails
as possible. We'll be rolling it out soon, but it does not support the
toolchain needed for hydro so we cannot completely switchover until the EOL
of Hydro.

Tully

On Mon, May 18, 2015 at 11:41 PM, G.A. vd. Hoorn - 3ME via ros-release <
ros-release at lists.ros.org> wrote:

> On 19-5-2015 0:44, Tully Foote via ros-release wrote:
> > Hi,
> >
> > We'd like to push new Indigo and Hydro syncs.
> [..]
> > Hydro maintainers please know we're approaching EOL for Hydro and new
> > builds in the future may not be possible so make sure to test any new
> > releases heavily as you may not get another chance to patch them.
> [..]
>
> the past few days I've been getting lots of emails from the farm about
> failing builds on Hydro: permission errors for files in
> /var/cache/pbuilder, missing dependencies (ros-hydro-moveit-* fi) and
> other strange things. For our 'stable' repositories, 'nothing has
> changed', so I'm rather puzzled as to what is going on.
>
> From what I can gather these seem to be things out of my control, but I
> just wanted to make sure there isn't anything I'm supposed to do about
> this.
>
>
> Gijs
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