Hi, I have tested pg_rewind (ver 9.5) with the following scenario:
- one master and one slave (total size of each server is more than 4GB) - set wal_log_hint=on and restart both - stop master, promote slave - start old master again (now two servers have diverged) - stop old master, run pg_rewind with progress option The pg_rewind ran successfully but I saw it copied more than 4GB (4265891 kB copied). So I wonder there was very minor difference between two servesr but why did pg_rewind copy almost all data of new master? Regards, Hung Phan
