7f06beb1b6
A tenant reconfiguration is when a scheduler encounters an event which it determines requires creating a new layout. A tenant layout update is when a scheduler determines that its local layout is not up to date with the most recent tenant reconfiguration. A tenant reconfiguration on one scheduler is shortly followed by a tenant layout on all other schedulers. Currently, both of these actions happen in the main scheduler run loop which means that in the case of a large tenant, one scheduler will dedicate itself to reconfiguring that tenant while all other schedulers handle all other tenants (so far, so good). Then the first scheduler will resume handling all tenants while all other schedulers simultaneously dedicate themselves to updating the large tenant. During this time, only a single scheduler (the first) will actually be processing pipelines. We may be able to see more performance out of the schedulers if we allow them to continue processing other tenants while they update their local layouts. This change moves the layout updates into a separate thread which will run in parallel with the main run loop. Change-Id: I47dc07338ab814aab2392fc05b1f7656a2a2cbfd |
||
|---|---|---|
| doc | ||
| etc | ||
| playbooks | ||
| releasenotes/notes | ||
| tests | ||
| tools | ||
| web | ||
| zuul | ||
| .coveragerc | ||
| .dockerignore | ||
| .gitignore | ||
| .gitreview | ||
| .mailmap | ||
| .stestr.conf | ||
| .zuul.yaml | ||
| COPYING | ||
| Dockerfile | ||
| LICENSE | ||
| MANIFEST.in | ||
| README.rst | ||
| TESTING.rst | ||
| bindep.txt | ||
| reno.yaml | ||
| requirements.txt | ||
| setup.cfg | ||
| setup.py | ||
| test-requirements.txt | ||
| tox.ini | ||
README.rst
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.