pgpool.conf.sample has already done this.
backend_flag0 = 'ALLOW_TO_FAILOVER'
# Controls various backend behavior
# ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER
-backend_hostname1 = 'host2'
-backend_port1 = 5433
-backend_weight1 = 1
-backend_data_directory1 = '/data1'
-backend_flag1 = 'ALLOW_TO_FAILOVER'
+#backend_hostname1 = 'host2'
+#backend_port1 = 5433
+#backend_weight1 = 1
+#backend_data_directory1 = '/data1'
+#backend_flag1 = 'ALLOW_TO_FAILOVER'
# - Authentication -
backend_flag0 = 'ALLOW_TO_FAILOVER'
# Controls various backend behavior
# ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER
-backend_hostname1 = 'host2'
-backend_port1 = 5433
-backend_weight1 = 1
-backend_data_directory1 = '/data1'
-backend_flag1 = 'ALLOW_TO_FAILOVER'
+#backend_hostname1 = 'host2'
+#backend_port1 = 5433
+#backend_weight1 = 1
+#backend_data_directory1 = '/data1'
+#backend_flag1 = 'ALLOW_TO_FAILOVER'
# - Authentication -
backend_flag0 = 'ALLOW_TO_FAILOVER'
# Controls various backend behavior
# ALLOW_TO_FAILOVER or DISALLOW_TO_FAILOVER
-backend_hostname1 = 'host2'
-backend_port1 = 5433
-backend_weight1 = 1
-backend_data_directory1 = '/data1'
-backend_flag1 = 'ALLOW_TO_FAILOVER'
+#backend_hostname1 = 'host2'
+#backend_port1 = 5433
+#backend_weight1 = 1
+#backend_data_directory1 = '/data1'
+#backend_flag1 = 'ALLOW_TO_FAILOVER'
# - Authentication -