Hi Tatsuo Ishii, I am very beginner at PostgreSQL. I am trying to create fail-over cluster server (with replication and online recover) using pg-pool 3.1. 1. which prerequisite are needed for preparing failover server using pgpool at linux environment (RHEL 6.1). 2. I am not able to configure pgpool.conf file and pool_hba.conf. 3. details information of my server are as follow (I am using 3 servers one for cluster and other 2 for postgresql): cluster server: IP:192.168.1.21 HOST NAME: CLUST.pgsql.local Port: 9999 node1 server: IP: 192.168.1.30 HOST NAME: node1.pgsql.local Port: 5432 username: postgres Password: 123qwe dbname: pg_new backend_data_directory = '/var/lib/pgsql/data' node2 server: IP:192.168.1.31 HOST NAME: node2.pgsql.local Port: 5432 username: postgres Password: 123qwe dbname: pg_new backend_data_directory = '/var/lib/pgsql/data' please help me. Thanks Gautam -- View this message in context: http://postgresql.1045698.n5.nabble.com/Streaming-replication-pgpool-II-tutorial-tp3250984p5737033.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general