See also:
https://lists.linaro.org/pipermail/lava-announce/2015-November/000002.html
which was also sent to these lists (except linaro-dev).
So far, nobody has come forward as a Trusty user. The only Trusty
instance of which we are aware is already due to migrate to Debian
Jessie.
The LAVA software team are now applying updates which will freeze LAVA
software support for Ubuntu Trusty at 2015.9 for lava-dispatcher and
2015.9.post1 for lava-server due to the complexities of supporting
both django1.6 and the current django1.7 in Jessie and django1.8,
possibly django1.9 by the time Debian Stretch is released.
The last packages for Ubuntu Trusty 14.04LTS will be:
lava-server 2015.9.post1
lava-dispatcher 2015.9
Once these changes are applied, the Debian packaging used to build
future versions of LAVA packages will prevent builds against django1.6
and prevent installation if django1.6 is found, in order to prevent
database corruption.
This means that Trusty users will not be able to use the results of
the dispatcher refactoring.
Ubuntu Xenial Xerus - which is planned to be the 16.04LTS in April
2016 - is expected to pick up LAVA software releases from Debian up
until the 2016.1 release (possibly 2016.2) and is also expected to be
using django1.8. The next Debian stable release (Stretch), for which
no date has yet been set, may use django1.9.
Initial attempts at migrating a test instance from Trusty to django1.7
did not go well and the migration from Trusty to Xenial cannot be
supported by the LAVA software team - the recommendation is to go
directly from 2015.9 on Trusty to the same version available for
Debian Jessie but there will still be work to be done to prepare and
implement the migration which will be instance-dependent.
Documentation is being added to assist with this migration but there
will remain risks of data loss which will need to be managed for each
instance. It is imperative that anyone using Trusty has an up to date
backup of the postgresql database dump before considering any
migration. If the existing data is to be dropped, a new install on
Debian Jessie is recommended.
It is not possible for the LAVA software team to support all versions
of django from 1.6 to 1.9 - particular problems are known when going
from django1.6 to django1.7 as the methods to migrate the lava-server
database changed fundamentally in django1.7.
Notes are being added to the documentation on the trusty branch based
on 2015.9 to be released within lava-server 2015.9.post1 and to the
documentation in the master branch (which will go into 2015.12).
All future builds of LAVA software will now be made and uploaded only
to Debian and releases.linaro.org.
So far, nobody has come forward who is willing to maintain packaging
for LAVA software on any distribution other than Debian. As the
refactoring proceeds, we expect that it will become easier to package
LAVA for other distributions but the migration to the refactoring must
be complete first.
Everyone interested in or using LAVA is encouraged to subscribe to the
lava-announce mailing list which is low volume and only used for
substantial changes like this.
https://lists.linaro.org/mailman/listinfo/lava-announce
See also https://validation.linaro.org/static/docs/support.html
--
Neil Williams
=============
neil.williams(a)linaro.org
http://www.linux.codehelp.co.uk/
This is a call to *all* users of LAVA on Trusty - please let us know
who you are, what you're needs are and whether you are able to migrate
to Debian Jessie instead of going from Trusty 14.04LTS to Xenial Xerus
16.04LTS.
If you are using LAVA on any release of Ubuntu older than Trusty, the
only advice from the LAVA team is to immediately migrate to Debian
Jessie.
If you are using LAVA on Wily Werewolf or Vivid Vervet, you should
also consider testing the migration to Xenial and comparing with a
migration to Debian Jessie, as below.
LAVA is looking at a fix for the 2015.9 release but Django1.9 is in
beta release already. There are issues with django1.8 which are in
development. Currently, we are proposing that this update will be
applied to 2015.9 and made into a frozen release.
The master branch of LAVA will continue to develop and will need to
use more features only available in Django1.7 and later. Documentation
relating to installing Trusty would then be deprecated and removed in
subsequent releases from the master branch. Equally, future database
migrations on the master branch would no longer provide south support,
using the django migration support provided by django1.7 and later. So
these releases would not be built for Trusty - leaving only the frozen
branch.
Due to the complexity of supporting django1.6, it is unlikely that
updates will be available for the frozen branch once this happens..
The changes in the lava-server due to the ongoing refactoring will
mean that users of Trusty will be unable to migrate to pipeline
support until the server has also been migrated to Xenial 16.04LTS.
In addition to this, there is concern that migrating from Trusty and
django1.6 all the way to django1.8 or possibly django1.9 in Ubuntu
Xenial 16.04LTS is going to be problematic and the LAVA team will be
unable to assist in most cases.
The alternative is for someone with a reasonably complex lab running
Ubuntu to take up a role as tester of the frozen branch *and*
responsibility for patches which can maintain trusty support and
migration to Xenial 16.04LTS. The problem then will be that it will be
a very large transition when 16.04LTS actually becomes available -
only for the same lag to start all over again.
I'm unsure when Xenial will close the window for migrations from
Debian into Xenial - I expect that the 2015.12 release of LAVA will
migrate, I expect that 2016.1 will migrate too but I cannot be sure
about 2016.2 or 2016.3. That migration is completely outside the
control of the LAVA software team.
https://launchpad.net/ubuntu/xenial/+source/lava-server
Everyone considering staying on Ubuntu is advised to try a migration
to Xenial *now* - in a VM, with and without a recent backup of your
database and logs. Xenial currently has 2015.11. Also compare with a
migration to Debian Jessie by dumping and reimporting the database. In
each case, ensure that the permissions on /var/lib/lava-server and
sub-directories are retained from the original.
Please talk to us and test out what you are going to do.
https://validation.linaro.org/static/docs/support.html
--
Neil Williams
=============
neil.williams(a)linaro.org
http://www.linux.codehelp.co.uk/
Some pointers on this list: Anyone is welcome to subscribe and post their
issues. A few notes which subscribers should follow and recommend to others:
0: Wherever possible, use a pastebin for log output and include a link to
the paste in your post.
1: Paste from the complete log, not the summary, so that you get the
complete lines.
2: Include in this paste or another paste, the job definition
3: If your job uses URLs which are not visible to the rest of the list,
include a rough outline of how those were built and what versions of tools
were used.
Subscribers are invited to help each other. LAVA developers will be around
but are not the only source of assistance on this list.
--
Neil Williams
=============
neil.williams(a)linaro.org
http://www.linux.codehelp.co.uk/
