[openstack-dev] Pecan Version 1.2

Dave McCowan (dmccowan) dmccowan at cisco.com
Mon Sep 26 22:15:43 UTC 2016


I don't know what triggered the update.  Our gates started breaking on September 23, but I can't find a commit around that time that would have caused this to happen.

From: Clay Gerrard <clay.gerrard at gmail.com<mailto:clay.gerrard at gmail.com>>
Reply-To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Date: Monday, September 26, 2016 at 6:03 PM
To: "OpenStack Development Mailing List (not for usage questions)" <openstack-dev at lists.openstack.org<mailto:openstack-dev at lists.openstack.org>>
Subject: Re: [openstack-dev] Pecan Version 1.2

I'm interested to hear how this works out.

I thought upper-constraints was somehow supposed to work to prevent this?  Like maybe don't install a brand new shiny upstream version on the gate infrastructure test jobs until it passes all our tests?  Prevent a fire drill?  That bug was active back in July - but I guess 1.2 was released pretty recently?  .... maybe I don't understand the timeline.

-Clay

On Mon, Sep 26, 2016 at 2:21 PM, Dave McCowan (dmccowan) <dmccowan at cisco.com<mailto:dmccowan at cisco.com>> wrote:

The Barbican project uses Pecan as our web framework.

At some point recently, OpenStack started picking up their new version 1.2.  This version [1] changed one of their APIs such that certain calls that used to return 200 now return 204.  This has caused immediate problems for Barbican (our gates for /master, stable/newton, and stable/mitaka all fail) and a potential larger impact (changing the return code of REST calls is not acceptable for a stable API).

Before I start hacking three releases of Barbican to work around Pecan's change, I'd like to ask:  are any other projects having trouble with
Pecan Version 1.2?  Would it be possible/appropriate to block this version as not working for OpenStack?

Thanks,
Dave McCowan


[1]
http://pecan.readthedocs.io/en/latest/changes.html
https://github.com/pecan/pecan/issues/72


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