Hi, I configured replication in 2 AWS instances. I have shell scripts to dynamically configure the Ips after the instances are UP. the Postgres versions are the same in master& slave, also the architecture of instances. Added the lines in the Master root@ip-172-19-1-37:~# cat /etc/postgresql/9.0/main/pg_hba.conf |grep trust host all postgres 172.19.1.101/32 trust root@ip-172-19-1-37:~# tail -n6 /etc/postgresql/9.0/main/postgresql.conf wal_level = hot_standby max_wal_senders = 5 wal_keep_segments = 32 archive_mode = on archive_command = 'cp %p /nfsdata/postgres_wal/main_cware/%f' And in the slave root@ip-172-19-1-101:~# cat /var/lib/postgresql/9.0/main/recovery.conf standby_mode = 'on' trigger_file = '/path_to/trigger' restore_command = 'cp /nfsdata/postgres_wal/main_cware/%f "%p"' primary_conninfo = 'host=172.19.1.37 port=5432 user=postgres' root@ip-172-19-1-101:~# cat /etc/postgresql/9.0/main/postgresql.conf |grep hot hot_standby = on ---------------------------- I have in the master log 2011-06-07 17:53:04 UTC FATAL: no pg_hba.conf entry for replication connection from host "172.19.1.101", user "postgres", SSL off 2011-06-07 17:53:09 UTC FATAL: no pg_hba.conf entry for replication connection from host "172.19.1.101", user "postgres", SSL off and in the slave cp: cannot stat `/nfsdata/postgres_wal/main_cware/00000001000000000000002E': No such file or directory 2011-06-07 17:53:34 UTC FATAL: could not connect to the primary server: FATAL: no pg_hba.conf entry for replication connection from host "172.19.1.101", user "postgres", SSL off __________________________________ I'm rsync the files from master rsync -a --delete --exclude postmaster.pid --exclude pg_xlog /data/postgresql/main/ /nfsdata/postgres_wal/main_cware/bkp/ and restoring the DB in slave rsync -a --exclude '.conf' /nfsdata/postgres_wal/main_cware/bkp/ /var/lib/postgresql/9.0/main replication is not working since the records added to te master car not present in the slave. Any help will be appreciated. regards Owen -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general