Backport of job_endpoint: check spec for all regions into release/1.1.x #14543
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Backport
This PR is auto-generated from #14519 to be assessed for backporting due to the inclusion of the label backport/1.1.x.
WARNING automatic cherry-pick of commits failed. Commits will require human attention.
The below text is copied from the body of the original PR.
This PR introduces a helper method to the Job RPC endpoint called specChanged. This method checks whether an incoming jobspec has changed relative to the currently deployed jobspec in all regions. This handles the case where a job has been stopped in one or more regions, and the operator now wants to restart it. By checking all regions, the spec change is detected, and a new job version can be computed and deployed to all multiregion targets.