The latest Apache Aurora release, 0.8.0, is now available for download. This version marks the first Aurora release since becoming a top-level project at the Apache Software Foundation, and includes the following features, improvements, and announcements:
Full release notes are available in the release CHANGELOG.
With the introduction of scheduler-driven job update orchestration, Aurora now optionally supports an inverted dependency model where the updater can willingly pause job update progress upon reaching certain checkpoints and wait for the client/external service to explicitly “ack” on it. Further details are outlined in the coordinated job updates documentation.
This feature may also be useful for building external update coordination services where Aurora service job upgrades are controlled by application specific health tracking systems, throttling individual job updates based on the internal health/traffic metrics.
Aurora now uses Apache Shiro to manage security for scheduler operations, including authenticated write access (HTTP Basic Auth or Kerberos), and fine-grained ACLs for scheduler RPCs.
Further details are outlined in the security documentation.
Performance is continually an area of focus and improvement for the Aurora team, with production Aurora clusters measuring tens of thousands of machines and tens-to-hundreds of thousands of tasks. Two specific scheduler performance improvements were a focus of the 0.8.0 release, including improved preemption efficiency, and creating a scheduler performance benchmark framework.
The latest Aurora release includes the several removals and deprecations, including:
We encourage you to try out this release and let us know what you think. If you run into any issues, please let us know on the user mailing list and IRC. The community also holds weekly IRC meetings at 11AM Pacific every Monday that you are welcome to join.
Thanks to the 21 contributors who made Apache Aurora 0.8.0 possible: