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Revision as of 21:40, 12 April 2022 by Rajatdhasmana (talk | contribs) (Tuesday 19 October)


The fifth virtual PTG for the Zed cycle of Cinder was conducted from Tuesday, 5th April, 2022 to Friday, 8th April, 2022, 4 hours each day (1300-1700 UTC). This page will provide a summary of all the topics discussed throughout the PTG.

This document aims to give a summary of each session. More context is available on the cinder Zed PTG etherpad:

The sessions were recorded, so to get all the details of any discussion, you can watch/listen to the recording. Links to the recordings are located at appropriate places below.

Tuesday 05 April


For the benefit of people who haven't attended, this is the way the cinder team works at the PTG:

  • sessions are recorded
  • please sign in on the "Attendees" section of this etherpad for each day
  • all notes, questions, etc. happen in the etherpad; try to remember to preface your comment with your irc nick
  • anyone present can comment or ask questions in the etherpad
  • also, anyone present should feel free to ask questions or make comments during any of the discussions
  • we discuss topics in the order listed in the etherpad, making adjustments as we go for sessions that run longer or shorter
  • we stick to the scheduled times for cross-project sessions, but for everything else we are flexible

Release cadence discussion: tick-tock model


There was a PTL-TC session about this on 4th April, 2022 (Monday) and the following points were discussed:

  • This only affects the upgrade path and not the release model which remains same (i.e. 6 months)
  • It proposes a tick-tock release model where if a release is tick, the subsequent release will be tock and so on
  • This new effort provides the ability to upgrade from tick->tick release (skipping one release) but we cannot upgrade (directly) from tock-> tock release
  • There is a job in place, grenade-skip-level, that will run on tick releases and check upgrade from tick-> tick release (or N-2 to N release)

We've a patch up by Gorka documenting the impact of the new release cadence on Cinder and it requires changes based on our discussion