-----Original Message----- From: Laurenz Albe <laurenz.albe@xxxxxxxxxxx> Sent: donderdag 23 januari 2020 16:56 To: Bhattacharjee, Soumik <soumik.bhattacharjee@xxxxxxx>; pgsql-admin@xxxxxxxxxxxxxxxxxxxx; pgsql-admin@xxxxxxxxxxxxxx Subject: Re: pg_rewind > > In Original MASTER I am running below – > > /usr/lib/postgresql/12/bin$ ./pg_rewind -D $PGDATA --source-server='host=<IP Address> port=5432' -P > pg_rewind: fatal: could not connect to server: fe_sendauth: no password supplied > > I'm not sure why this keeps happening. Because you used the wrong user or didn't specify a password? Try --source-server='host=<IP Address> port=5432 user=... password=...' -- Thanks for your suggestion, I made the "wal_log_hints = on". I set the "wal_log_hints = on" , but enabling this parameter "on" in new MASTER(old SLAVE) needs a restart-- which I cannot do as all application transactions are going on there now. Also I used pg_rewind in old MASTER(which now I want to make as new SLAVE) and it was successful, but this also needs restart of new MASTER(old SLAVE) which is again an issue. Command used: ./pg_rewind -D $PGDATA --source-server='host=<IP Address> port=5432 user=postgres password=xxxx Could you please suggest how to get this to work to keep the MASTER(old SLAVE) up & running and make the old MASTER(new SLAVE)
