[CCR] Report error if auto follower tries auto follow a leader index with soft deletes disabled #36886
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Outdated suggestions cannot be applied.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.
Currently if a leader index with soft deletes disabled is auto followed then this index is silently ignored.
This commit changes this behaviour to mark these indices as auto followed and report an error, which is
visible in auto follow stats. Marking the index as auto follow is important, because otherwise the auto follower will continuously try to auto follow and fail.
Relates to #33007