Documentation for the remote_cluster in the role was added
in #111682 and #108840, but a few places were missed.
This commit fill the gaps in the documentation.
* [DOCS] Remote cluster troubleshooting guide
* Fix test failures
* Apply suggestions from code review
Co-authored-by: Yang Wang <ywangd@gmail.com>
* Review feedback
* Group issues under 'common' and 'API key'
* Apply suggestions from code review
Co-authored-by: Yang Wang <ywangd@gmail.com>
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Co-authored-by: Yang Wang <ywangd@gmail.com>
* [DOCS] Remote cluster migration guide
* Review feedback
* Clarify that any extra local privileges will be suppressed by the cross-cluster API key’s privileges