259caab87a
Since we can't use transactions, we need to clean up any leaked side channel data nodes. We do this at the end of processing each event queue -- at this point, the queues are likely to have a low number of nodes which should avoid us having to waste too much time iterating over valid nodes. It also avoids us having to have a cleanup loop that iterates over all tenants/pipelines. Since we must compare the contents of the side channel "directory" with the contents of the queues, a global side channel root would mean we have to examine the contents of every queue to decide if it's valid. That seems unecessarily complicated (especially since queues can appear or disappear with reconfigurations), and would necessitate complex locking. Instead, we move the side channel data to reside next to the actual queue data, so each queue has its own side channel "directory". The actual queues are shifted down one level in the ZK hierarchy so that the side channel data can share a ZK node root with them. Change-Id: Ifbeb0acfe47732e7376a8aeae643bc7732e96513
Zuul
Zuul is a project gating system.
The latest documentation for Zuul v3 is published at: https://zuul-ci.org/docs/zuul/
If you are looking for the Edge routing service named Zuul that is related to Netflix, it can be found here: https://github.com/Netflix/zuul
If you are looking for the Javascript testing tool named Zuul, it can be found here: https://github.com/defunctzombie/zuul
Getting Help
There are two Zuul-related mailing lists:
- zuul-announce
-
A low-traffic announcement-only list to which every Zuul operator or power-user should subscribe.
- zuul-discuss
-
General discussion about Zuul, including questions about how to use it, and future development.
You will also find Zuul developers in the #zuul channel on Freenode IRC.
Contributing
To browse the latest code, see: https://opendev.org/zuul/zuul To clone the latest code, use git clone https://opendev.org/zuul/zuul
Bugs are handled at: https://storyboard.openstack.org/#!/project/zuul/zuul
Suspected security vulnerabilities are most appreciated if first reported privately following any of the supported mechanisms described at https://zuul-ci.org/docs/zuul/user/vulnerabilities.html
Code reviews are handled by gerrit at https://review.opendev.org
After creating a Gerrit account, use git review to submit patches. Example:
# Do your commits
$ git review
# Enter your username if promptedJoin #zuul on Freenode to discuss development or usage.
License
Zuul is free software. Most of Zuul is licensed under the Apache License, version 2.0. Some parts of Zuul are licensed under the General Public License, version 3.0. Please see the license headers at the tops of individual source files.
Python Version Support
Zuul requires Python 3. It does not support Python 2.
Since Zuul uses Ansible to drive CI jobs, Zuul can run tests anywhere Ansible can, including Python 2 environments.