When a pipeline is removed during a reconfiguration Zuul will cancel
active builds and node requests. However, since we no longer refresh the
pipeline state during a reconfig we can run into errors when Zuul tries
to cancel builds and node requests based on a possibly outdated pipeline
state.
2023-01-17 10:41:32,223 ERROR zuul.Scheduler: Exception in run handler:
Traceback (most recent call last):
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 2007, in run
self.process_tenant_management_queue(tenant)
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 2452, in process_tenant_management_queue
self._process_tenant_management_queue(tenant)
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 2462, in _process_tenant_management_queue
self._doTenantReconfigureEvent(event)
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 1533, in _doTenantReconfigureEvent
self._reconfigureTenant(ctx, min_ltimes,
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 1699, in _reconfigureTenant
self._reconfigureDeletePipeline(old_pipeline)
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 1804, in _reconfigureDeletePipeline
self.cancelJob(build.build_set, build.job,
File "/opt/zuul/lib/python3.10/site-packages/zuul/scheduler.py", line 2930, in cancelJob
build.updateAttributes(
File "/opt/zuul/lib/python3.10/site-packages/zuul/zk/zkobject.py", line 193, in updateAttributes
self._save(context, serial)
File "/opt/zuul/lib/python3.10/site-packages/zuul/zk/zkobject.py", line 392, in _save
zstat = self._retry(context, self._retryableSave,
File "/opt/zuul/lib/python3.10/site-packages/zuul/zk/zkobject.py", line 314, in _retry
return kazoo_retry(func, *args, **kw)
File "/opt/zuul/lib/python3.10/site-packages/kazoo/retry.py", line 126, in __call__
return func(*args, **kwargs)
File "/opt/zuul/lib/python3.10/site-packages/zuul/zk/zkobject.py", line 371, in _retryableSave
zstat = context.client.set(path, compressed_data,
File "/opt/zuul/lib/python3.10/site-packages/kazoo/client.py", line 1359, in set
return self.set_async(path, value, version).get()
File "/opt/zuul/lib/python3.10/site-packages/kazoo/handlers/utils.py", line 86, in get
raise self._exception
kazoo.exceptions.BadVersionError
To fix this we need to refresh the pipeline state prior to canceling
those active builds and node requests.
We will also take care of removing the pipeline state and the event
queues from Zookeeper if possible. Errors will be ignored as the
periodic cleanup task takes care of removing leaked pipelines.
Change-Id: I2986419636d8c6557d68d65fb6aff589aa4a680e
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 on Matrix <https://matrix.to/#/#zuul:opendev.org>.
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 prompted
Join us on Matrix 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.