Hi, Le lun. 11 juil. 2022 à 21:22, Ken Yeung <ken.ye...@rib-software.com> a écrit :
> In the course of upgrading a bunch of database clusters from 10 to 14 > using pg_upgrade tool, some databases result in the following error > recorded in pg_upgrade_dump_1.log, such that cluster upgrade fails. > FATAL: password authentication failed for user "postgres" > This error happens on the restoration-side (Pg14) pg_restore: error: connection to server at "localhost" (::1), port 50432 failed: FATAL: password authentication failed for user "postgres" means that you try to use ipv6 (is it possible, according to your target postgresql.conf file?) Does your Pg14 target pg_hba.conf file allow this kind of connection? Last year, I had to migrate 200+ PostgreSQL instance from Pg9.5 to Pg12, I discovered some configuration differences while performing this kind of pre-upgrade tests. > > This was done on Microsoft Windows 11. > PostgreSQL 10 and 14 used are built using Visual Studio 2015. > Only a small number of database clusters has this problem, around 2 of 200. > It appears these database are used from earlier cluster upgrade from 9.4 > to 10 as well. > > It would be very helpful if there is any possible workaround to overcome > this problem. > > I attached a sample pg_upgrade_dump_1.log reported this error. Hope it helps, Thomas
