Although the last blocker raised for the 0.12.0 RC series has been resolved [1], it looks like resolution of several issues related to rolling back to 0.11.0 are required to cut the next RC: 1. "Scheduler fails to start after rollback": https://issues.apache.org/jira/browse/AURORA-1603 2. "Add a flag to disable the HTTP redirect to the leader": https://issues.apache.org/jira/browse/AURORA-1601 3. "Update recovery docs to reflect changes": https://issues.apache.org/jira/browse/AURORA-1605
These issues fall into 2 classes: Item 1 above needs to fix the immediate problem of rolling back to 0.11.0; although there may be more changes to process, tooling and code to support the problem better going forward. Items 2 & 3 address tooling & procedure that support rollback. It looks like Maxim has claimed item 1/AURORA-1603 and Joshua is working item 2/AURORA-1601. I assume one of Maxim, Joshua or Zameer will tackle item 3/AURORA-1605 to update rollback docs with what they learned rolling back. If I have any of this wrong, please speak up; otherwise I'll be cutting the next 0.12.0 RC3 when the above 3 issues are resolved. [1] "Identity.role is still used in the UI leading to duplicate instances on job page": https://issues.apache.org/jira/browse/AURORA-1604