ffb548f367
Change I513976a703f035545eaf5bd05a381dbc0c509cda updated the format for zkobjects. The old format chunks the data and then compresses each chunk with zlib; the new format compressed the entire data then chunks the compressed data. The change did not take into account the leading and trailing zlib metadata for each chunk. To correct this, we will add a model api revision so that we can know whether we should write the old or new formats. As for reading, we will always assume the new format to start, but on the second shard, we will check for a zlib header, and if we find it, we will switch to reading the old format. This will allow us to support reading old data for some time after the upgrade. For any systems that have already upgraded between the previous commit and this one, if they haven't encountered problems, then they are likely able to store data without sharding; the old and new data formats for a single shard are identical, so some flapping between the old and new versions on the "write" side during the model upgrade is unlikely to cause long-term problems. Change-Id: Ic44d340685bbaf79c43d4ca4848536bd33b26ed3 Co-Authored-By: Simon Westphahl <simon.westphahl@bmw.de>
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 promptedJoin 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.