Hi > They fail over to a secondary to do maintenance on a primary. But this is not problem even in current patch state. We can restart replica before failover and it works. I tested this behavior during my review. We can: - call pg_enable_data_checksums() on master - wait change data_checksums to inprogress on replica - restart replica - we can restart replica before promote, right? - promote this replica - checksum helper is launched now and working on this promoted cluster
regards, Sergei
