If the gearman server vanishes (e.g. due to a VM crash) some clients like the merger may not notice that it is gone. They just wait forever for data to be received on an inactive connection. In our case the VM containing the zuul-scheduler crashed and after the restart of the scheduler all mergers were waiting for data on the stale connection which blocked a successful scheduler restart. Using tcp keepalive we can detect that situation and let broken inactive connections be killed by the kernel. Depends-On: I8589cd45450245a25539c051355b38d16ee9f4b9 Change-Id: I30049d59d873d64f3b69c5587c775827e3545854
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://git.zuul-ci.org/cgit/zuul/tree/ To clone the latest code, use git clone https://git.zuul-ci.org/zuul
Bugs are handled at: https://storyboard.openstack.org/#!/project/openstack-infra/zuul
Code reviews are handled by gerrit at https://review.openstack.org
After creating a Gerrit account, use git review to submit patches. Example:
# Do your commits
$ git review
# Enter your username if prompted
Join #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 v3 requires Python 3. It does not support Python 2.
As Ansible is used for the execution of jobs, it's important to note
that while Ansible does support Python 3, not all of Ansible's modules
do. Zuul currently sets ansible_python_interpreter to
python2 so that remote content will be executed with Python 2.