The Ongres folks recommend that we replace repmgr with Patroni here due to potential split-brain issues with repmgr: https://gitlab.com/gitlab-com/migration/issues/770#note_97123506 That's unfortunate since we're shipping repmgr and supporting customers with this solution. Would upgrading to repmgr v4 improve the situation or should we switch outright? /cc: @joshlambert, @ahachete, @ibaum, @marin