diff --git a/postgresql/defaults/main.yml b/postgresql/defaults/main.yml
index 13e124fb..df45cff3 100644
--- a/postgresql/defaults/main.yml
+++ b/postgresql/defaults/main.yml
@@ -127,6 +127,7 @@ pgpool_memqcache_memcached_host: localhost
 pgpool_memqcache_memcached_port: 11211
 pgpool_memqcache_expire: 0
 pgpool_memqcache_auto_cache_invalidation: 'on'
+pgpool_serialize_accept: 'off'
 # HA and watchdog
 pgpool_use_watchdog: 'off'
 pgpool_wd_trusted_servers: 'localhost,localhost'
diff --git a/postgresql/templates/pgpool.conf.j2 b/postgresql/templates/pgpool.conf.j2
index dff14acc..c4869737 100644
--- a/postgresql/templates/pgpool.conf.j2
+++ b/postgresql/templates/pgpool.conf.j2
@@ -213,6 +213,8 @@ reset_query_list = 'ABORT; DISCARD ALL'
                                    # The following one is for 8.2 and before
 #reset_query_list = 'ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT'
 
+serialize_accept = {{ pgpool_serialize_accept }}
+
 
 #------------------------------------------------------------------------------
 # REPLICATION MODE
@@ -470,7 +472,7 @@ delegate_IP = '{{ pgpool_virtual_ip }}'
                                     # delegate IP address
                                     # If this is empty, virtual IP never bring up. 
                                     # (change requires restart)
-ifconfig_path = '/sbin'
+if_cmd_path = '/sbin'
                                     # ifconfig command path
                                     # (change requires restart)
 if_up_cmd = 'ip_script addr add {{ pgpool_virtual_ip }}/{{ pgpool_virtual_netmask }} dev {{ ansible_default_ipv4.alias }}'
@@ -496,9 +498,10 @@ clear_memqcache_on_escalation = on
                                     # This should be off if client connects to pgpool
                                     # not using virtual IP.
                                     # (change requires restart)
-wd_escalation_command = ''
+wd_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_escalation.log'
                                     # Executes this command at escalation on new active pgpool.
                                     # (change requires restart)
+wd_de_escalation_command = 'date >> {{ psql_log_dir }}/wd_pgpool_de_escalation.log'
 
 # - Lifecheck Setting - 
 
@@ -542,10 +545,6 @@ heartbeat_device0 = ''
                                     # and pgpool has root privilege.
                                     # (change requires restart)
 
-#heartbeat_destination1 = 'host0_ip2'
-#heartbeat_destination_port1 = 9694
-#heartbeat_device1 = ''
-
 {% else %}
 # -- query mode --