kombu in artful-proposed incompatible with celery in artful

[Michael Hudson-Doyle]

Currently, even without the Python 3.6 transition going on, the version of kombu in artful-proposed is too new for the version of celery in artful (as described here: https://github.com/celery/django-celery/issues/276). To fix this we either need to upgrade celery and its deps, or delete the version from -proposed. Given the in-progress Python 3.6 transition, I favour the latter for now.

[Michael Hudson-Doyle (mwhudson)]

Subscribing James Page for comments as he synced the new package from experimental.

[James Page (james-page)]

The newer kombu version was required to support the current milestone for OpenStack Pike (via oslo.messaging), so I'd prefer to move forward with the new version rather than reverting if possible - what does the size of the celery upgrade look like?

[Adam Conrad (adconrad)]

You may have linked the wrong ticket? That one's about Celery 3.0 being incompatible with kombu 3.0, but we've shipped Celery 3.1 and kombu 3.0 since vivid?

[Michael Hudson-Doyle (mwhudson)]

Oh yes, that was the wrong ticket. Anyway, it seems kombu 4 is not compatible with celery 3, which is the current situation in artful(-proposed). As to the size of the upgrade, no idea, I guess we'll be moving to celery 4 sooner or later so I'll have a look at it tomorrow.

[Nish Aravamudan (nacc)]

The celery update requires (so far) the following changes:

 - uupdate of src:celery itself, along with refreshing of patches and dependencies.
 - patch to src:sphinx-celery to build python2 and python3 binary packages [will also send to Debian]
 - uupdate of src:billiard as a versioned requirement of the new celery
 - building against the version of kombu in artful-proposed

There may be more changes needed, but wanted to publicize this is where I'm at so far.

[Nish Aravamudan (nacc)]

Attaching some debdiffs. With these, both billiard and celery build successfully (which for celery also means passing their tests). But upstream celery has deprecated a bunch of commands, so I'm holding off on uploading today.

[Nish Aravamudan (nacc)]

billiard debdiff updating to 3.5.0.2

[Nish Aravamudan (nacc)]

celery debdiff updating to 4.0.2.

[Nish Aravamudan (nacc)]

I'm testing a new change locally which doesn't need any changes to sphinx-celery. (the docs are what use sphinx, and require python3 to build).

[Nish Aravamudan (nacc)]

billiard and celery are uploaded, but I forgot to mention this bug in the celery changelog. In any case, the celery tests pass during the build, and I'm retriggering with kombu & billiard from a-p to see if the DEP8 tests will also pass (they pass locally).

[Launchpad Janitor (janitor)]

This bug was fixed in the package billiard - 3.5.0.2-0ubuntu1

---------------
billiard (3.5.0.2-0ubuntu1) artful; urgency=medium

  * New upstream release 3.5.0.2, needed for updating celery
    (LP: #1690688)
    - Refresh patches.
    - Drop:
      + d/p/fix_spelling.patch
        [ Fixed upstream ]
      + d/p/exclude_funtests_package.patch
        [ No longer applies ]

 -- Nishanth Aravamudan <email address hidden> Mon, 12 Jun 2017 16:29:48 -0700

[Nish Aravamudan (nacc)]

Fixed in celery 4.0.2-0ubuntu1.

[Nish Aravamudan (nacc)]

Fixed in kombu 4.0.2+really4.0.2+dfsg-2ubuntu1.