Monorail Issue Tracker
What is Monorail?
Monorail is the issue tracker used by Chromium-related projects on https://bugs.chromium.org.
- Monorail is a port of the Google Code issue tracker to AppEngine. It provides continuity for the chrome team with the least number of unknowns, while achieving these goals:
- Vastly simpler to develop and operate:
- Runs on Google App Engine, data in Google Cloud SQL and GCS.
- Built on simpler GAE APIs.
- Pure python, greatly simplified code, supported by Chrome Operations team.
- Better product focus:
- Focused on needs of larger teams: e.g., built-in support for user groups, custom fields, more control over issue visibility, better validation to improve issue data quality.
- Closely aligned with the chrome development process and dedicated to the future needs of the chrome team.
- Scaleable by design:
- Designed from the start to handle Chrome's future issue tracking needs.
- Efficient implementation of queries like issue ID and date ranges.
- Improved security and spam defenses.
- Ease of transition:
- Same data model as used by our existing issues for an exact import.
- Our v1 API is very close to the old Google Code API.
- Same ACLs and project administration controls.
- Familiar UI, but streamlined. One-to-one redirects from Google Code.
Monorail key features
- Developed as open source.
- Flexible issue representation that allows for creation of one-off labels.
- Custom fields defined by project owners.
- Support for components. Issues can be in multiple components.
- Filter rules are IF-THEN rules that automatically add labels or CC users.
- Fine-grained permission system allows control over visiblity and individual actions on individual issues.
- Saved queries per user and per project.
- Users can subscribe to their saved queries (not just labels) and get mail on updates.
- User groups are built into Monorail, so no update lag on built-in groups. We can also sync from Google Groups.
- Support for custom fields that are treated very much like built-in fields. Custom fields can be multi-valued.
- User-valued custom fields can be restricted to only allow qualified users that have a given permission.
- User-valued custom fields can trigger notifications to those users, and/or grant permissions to the named users.
- Notification emails include detailed footers that give an ordered list of the reasons why the email was sent to you, with specifics such as “You are the on the auto-cc list of Component C”.
- ML-based spam detection applied before notifications are generated. Users can also flag spam.
- Limited-availability Endpoints API that works like the old Google Code API.
- Personal hotlists with ranked issues.
Reporting problems with Monorail
Please file an issue at https://bugs.chromium.org/p/monorail.