# ----------------------------
# pgPool-II configuration file
# ----------------------------
#
# This file consists of lines of the form:
#
#   name = value
#
# Whitespace may be used.  Comments are introduced with "#" anywhere on a line.
# The complete list of parameter names and allowed values can be found in the
# pgPool-II documentation.
#
# This file is read on server startup and when the server receives a SIGHUP
# signal.  If you edit the file on a running system, you have to SIGHUP the
# server for the changes to take effect, or use "pgpool reload".  Some
# parameters, which are marked below, require a server shutdown and restart to
# take effect.
#


#------------------------------------------------------------------------------
# CONNECTIONS
#------------------------------------------------------------------------------

# - pgpool Connection Settings -

listen_addresses='*'
# Host name or IP address to listen on:
# '*' for all, '' for no TCP/IP connections
# (change requires restart)
port=9999
# Port number
# (change requires restart)
socket_dir='/tmp'
# Unix domain socket path
# The Debian package defaults to
# /var/run/postgresql
# (change requires restart)
listen_backlog_multiplier=1
# Set the backlog parameter of listen(2) to
# num_init_children * listen_backlog_multiplier.
# (change requires restart)
serialize_accept=off
# whether to serialize accept() call to avoid thundering herd problem
# (change requires restart)

# - pgpool Communication Manager Connection Settings -

pcp_listen_addresses='*'
# Host name or IP address for pcp process to listen on:
# '*' for all, '' for no TCP/IP connections
# (change requires restart)
pcp_port=9898
# Port number for pcp
# (change requires restart)
pcp_socket_dir='/tmp'
# Unix domain socket path for pcp
# The Debian package defaults to
# /var/run/postgresql
# (change requires restart)

# - Backend Connection Settings -

backend_hostname0='192.168.15.55'
# Host name or IP address to connect to for backend 0
backend_port0=5432
# Port number for backend 0
backend_weight0=1
# Weight for backend 0 (only in load balancing mode)
backend_data_directory0='/home/postgres/databases/testdb'
# Data directory for backend 0
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'

# - Authentication -

enable_pool_hba=on
# Use pool_hba.conf for client authentication
pool_passwd='pool_passwd'
# File name of pool_passwd for md5 authentication.
# "" disables pool_passwd.
# (change requires restart)
authentication_timeout=60
# Delay in seconds to complete client authentication
# 0 means no timeout.

# - SSL Connections -

ssl=off
# Enable SSL support
# (change requires restart)
#ssl_key = './server.key'
# Path to the SSL private key file
# (change requires restart)
#ssl_cert = './server.cert'
# Path to the SSL public certificate file
# (change requires restart)
#ssl_ca_cert = ''
# Path to a single PEM format file
# containing CA root certificate(s)
# (change requires restart)
#ssl_ca_cert_dir = ''
# Directory containing CA root certificate(s)
# (change requires restart)


#------------------------------------------------------------------------------
# POOLS
#------------------------------------------------------------------------------

# - Concurrent session and pool size -

num_init_children=160
# Number of concurrent sessions allowed
# (change requires restart)
max_pool=1
# Number of connection pool caches per connection
# (change requires restart)

# - Life time -

child_life_time=1
# Pool exits after being idle for this many seconds
child_max_connections=0
# Pool exits after receiving that many connections
# 0 means no exit
connection_life_time=0
# Connection to backend closes after being idle for this many seconds
# 0 means no close
client_idle_limit=0
# Client is disconnected after being idle for that many seconds
# (even inside an explicit transactions!)
# 0 means no disconnection


#------------------------------------------------------------------------------
# LOGS
#------------------------------------------------------------------------------

# - Where to log -

log_destination='stderr'
# Where to log
# Valid values are combinations of stderr,
# and syslog. Default to stderr.

# - What to log -

log_line_prefix='%t: pid %p: '# printf-style string to output at beginning of each log line.

log_connections=off
# Log connections
log_hostname=off
# Hostname will be shown in ps status
# and in logs if connections are logged
log_statement=off
# Log all statements
log_per_node_statement=off
# Log all statements
# with node and backend informations
log_standby_delay='none'
# Log standby delay
# Valid values are combinations of always,
# if_over_threshold, none

# - Syslog specific -

syslog_facility='LOCAL0'
# Syslog local facility. Default to LOCAL0
syslog_ident='pgpool'
# Syslog program identification string
# Default to 'pgpool'

# - Debug -

#log_error_verbosity = default          # terse, default, or verbose messages

#client_min_messages = notice           # values in order of decreasing detail:
#   debug5
#   debug4
#   debug3
#   debug2
#   debug1
#   log
#   notice
#   warning
#   error

#log_min_messages = warning             # values in order of decreasing detail:
#   debug5
#   debug4
#   debug3
#   debug2
#   debug1
#   info
#   notice
#   warning
#   error
#   log
#   fatal
#   panic

#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------

pid_file_name='/var/run/pgpool.pid'
# PID file name
# (change requires restart)
logdir='/var/log'
# Directory of pgPool status file
# (change requires restart)


#------------------------------------------------------------------------------
# CONNECTION POOLING
#------------------------------------------------------------------------------

connection_cache=on
# Activate connection pools
# (change requires restart)

# Semicolon separated list of queries
# to be issued at the end of a session
# The default is for 8.3 and later
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'


#------------------------------------------------------------------------------
# REPLICATION MODE
#------------------------------------------------------------------------------

replication_mode=off
# Activate replication mode
# (change requires restart)
replicate_select=off
# Replicate SELECT statements
# when in replication mode
# replicate_select is higher priority than
# load_balance_mode.

insert_lock=off
# Automatically locks a dummy row or a table
# with INSERT statements to keep SERIAL data
# consistency
# Without SERIAL, no lock will be issued
lobj_lock_table=''
# When rewriting lo_creat command in
# replication mode, specify table name to
# lock

# - Degenerate handling -

replication_stop_on_mismatch=off
# On disagreement with the packet kind
# sent from backend, degenerate the node
# which is most likely "minority"
# If off, just force to exit this session

failover_if_affected_tuples_mismatch=off
# On disagreement with the number of affected
# tuples in UPDATE/DELETE queries, then
# degenerate the node which is most likely
# "minority".
# If off, just abort the transaction to
# keep the consistency


#------------------------------------------------------------------------------
# LOAD BALANCING MODE
#------------------------------------------------------------------------------

load_balance_mode=off
# Activate load balancing mode
# (change requires restart)
ignore_leading_white_space=on
# Ignore leading white spaces of each query
white_function_list=''
# Comma separated list of function names
# that don't write to database
# Regexp are accepted
black_function_list='currval,lastval,nextval,setval'
# Comma separated list of function names
# that write to database
# Regexp are accepted

database_redirect_preference_list=''
# comma separated list of pairs of database and node id.
# example: postgres:primary,mydb[0-4]:1,mydb[5-9]:2'
# valid for streaming replicaton mode only.

app_name_redirect_preference_list=''
# comma separated list of pairs of app name and node id.
# example: 'psql:primary,myapp[0-4]:1,myapp[5-9]:standby'
# valid for streaming replicaton mode only.
allow_sql_comments=off
# if on, ignore SQL comments when judging if load balance or
# query cache is possible.
# If off, SQL comments effectively prevent the judgment
# (pre 3.4 behavior).

#------------------------------------------------------------------------------
# MASTER/SLAVE MODE
#------------------------------------------------------------------------------

master_slave_mode=on
# Activate master/slave mode
# (change requires restart)
master_slave_sub_mode='stream'
# Master/slave sub mode
# Valid values are combinations slony or
# stream. Default is slony.
# (change requires restart)

# - Streaming -

sr_check_period=1
# Streaming replication check period
# Disabled (0) by default
sr_check_user='testdb'
# Streaming replication check user
# This is necessary even if you disable
# streaming replication delay check with
# sr_check_period = 0
sr_check_password='testdb'
# Password for streaming replication check user
sr_check_database='postgres'
# Database name for streaming replication check
delay_threshold=0
# Threshold before not dispatching query to standby node
# Unit is in bytes
# Disabled (0) by default

# - Special commands -

follow_master_command='/etc/pgpool-II/recovery/failback.sh %d %h %H %m %M %D %R %r'
# Executes this command after master failover
# Special values:
#   %d = node id
#   %h = host name
#   %p = port number
#   %D = database cluster path
#   %m = new master node id
#   %H = hostname of the new master node
#   %M = old master node id
#   %P = old primary node id
#   %r = new master port number
#   %R = new master database cluster path
#   %% = '%' character

#------------------------------------------------------------------------------
# HEALTH CHECK
#------------------------------------------------------------------------------

health_check_period=1
# Health check period
# Disabled (0) by default
health_check_timeout=20
# Health check timeout
# 0 means no timeout
health_check_user='postgres'
# Health check user
health_check_password='postgres'
# Password for health check user
health_check_database=''
# Database name for health check. If '', tries 'postgres' frist, then 'template1'

health_check_max_retries=2
# Maximum number of times to retry a failed health check before giving up.
health_check_retry_delay=1
# Amount of time to wait (in seconds) between retries.
connect_timeout=10000
# Timeout value in milliseconds before giving up to connect to backend.
# Default is 10000 ms (10 second). Flaky network user may want to increase
# the value. 0 means no timeout.
# Note that this value is not only used for health check,
# but also for ordinary conection to backend.

#------------------------------------------------------------------------------
# FAILOVER AND FAILBACK
#------------------------------------------------------------------------------

failover_command='/etc/pgpool-II/recovery/failover.sh %d %P %H %R'
# Executes this command at failover
# Special values:
#   %d = node id
#   %h = host name
#   %p = port number
#   %D = database cluster path
#   %m = new master node id
#   %H = hostname of the new master node
#   %M = old master node id
#   %P = old primary node id
#   %r = new master port number
#   %R = new master database cluster path
#   %% = '%' character
failback_command=''
# Executes this command at failback.
# Special values:
#   %d = node id
#   %h = host name
#   %p = port number
#   %D = database cluster path
#   %m = new master node id
#   %H = hostname of the new master node
#   %M = old master node id
#   %P = old primary node id
#   %r = new master port number
#   %R = new master database cluster path
#   %% = '%' character

fail_over_on_backend_error=on
# Initiates failover when reading/writing to the
# backend communication socket fails
# If set to off, pgpool will report an
# error and disconnect the session.

search_primary_node_timeout=0
# Timeout in seconds to search for the
# primary node when a failover occurs.
# 0 means no timeout, keep searching
# for a primary node forever.

#------------------------------------------------------------------------------
# ONLINE RECOVERY
#------------------------------------------------------------------------------

recovery_user='postgres'
# Online recovery user
recovery_password='postgres'
# Online recovery password
recovery_1st_stage_command='recovery_1st_stage'
# Executes a command in first stage
recovery_2nd_stage_command=''
# Executes a command in second stage
recovery_timeout=90
# Timeout in seconds to wait for the
# recovering node's postmaster to start up
# 0 means no wait
client_idle_limit_in_recovery=0
# Client is disconnected after being idle
# for that many seconds in the second stage
# of online recovery
# 0 means no disconnection
# -1 means immediate disconnection


#------------------------------------------------------------------------------
# WATCHDOG
#------------------------------------------------------------------------------

# - Enabling -

use_watchdog=on
# Activates watchdog
# (change requires restart)

# -Connection to up stream servers -

trusted_servers=''
# trusted server list which are used
# to confirm network connection
# (hostA,hostB,hostC,...)
# (change requires restart)
ping_path='/bin'
# ping command path
# (change requires restart)

# - Watchdog communication Settings -

wd_hostname='192.168.15.56'
# Host name or IP address of this watchdog
# (change requires restart)
wd_port=9000
# port number for watchdog service
# (change requires restart)
wd_priority=1
# priority of this watchdog in leader election
# (change requires restart)

wd_authkey=''
# Authentication key for watchdog communication
# (change requires restart)

wd_ipc_socket_dir='/tmp'
# Unix domain socket path for watchdog IPC socket
# The Debian package defaults to
# /var/run/postgresql
# (change requires restart)


# - Virtual IP control Setting -

delegate_IP='192.168.15.59'
# delegate IP address
# If this is empty, virtual IP never bring up.
# (change requires restart)
if_cmd_path='/sbin'
# path to the directory where if_up/down_cmd exists 
# (change requires restart)
if_up_cmd='ifconfig eth0:pg inet $_IP_$ netmask 255.255.255.0'
# startup delegate IP command
# (change requires restart)
if_down_cmd='ifconfig eth0:pg down'
# shutdown delegate IP command
# (change requires restart)
arping_path='/usr/sbin'
# arping command path
# (change requires restart)
arping_cmd='arping -U $_IP_$ -w 1'
# arping command
# (change requires restart)

# - Behaivor on escalation Setting -

clear_memqcache_on_escalation=on
# Clear all the query cache on shared memory
# when standby pgpool escalate to active pgpool
# (= virtual IP holder).
# This should be off if client connects to pgpool
# not using virtual IP.
# (change requires restart)
wd_escalation_command=''
# Executes this command at escalation on new active pgpool.
# (change requires restart)
wd_de_escalation_command=''
# Executes this command when master pgpool resigns from being master.
# (change requires restart)

# - Lifecheck Setting -

# -- common --

wd_monitoring_interfaces_list=''# Comma separated list of interfaces names to monitor.
# if any interface from the list is active the watchdog will
# consider the network is fine
# 'any' to enable monitoring on all interfaces except loopback
# '' to disable monitoring


wd_lifecheck_method='heartbeat'
# Method of watchdog lifecheck ('heartbeat' or 'query' or 'external')
# (change requires restart)
wd_interval=10
# lifecheck interval (sec) > 0
# (change requires restart)

# -- heartbeat mode --

wd_heartbeat_port=9694
# Port number for receiving heartbeat signal
# (change requires restart)
wd_heartbeat_keepalive=2
# Interval time of sending heartbeat signal (sec)
# (change requires restart)
wd_heartbeat_deadtime=30
# Deadtime interval for heartbeat signal (sec)
# (change requires restart)
heartbeat_destination0='192.168.15.55'
# Host name or IP address of destination 0
# for sending heartbeat signal.
# (change requires restart)
heartbeat_destination_port0=9694
# Port number of destination 0 for sending
# heartbeat signal. Usually this is the
# same as wd_heartbeat_port.
# (change requires restart)
heartbeat_device0='eth0'
# Name of NIC device (such like 'eth0')
# used for sending/receiving heartbeat
# signal to/from destination 0.
# This works only when this is not empty
# and pgpool has root privilege.
# (change requires restart)

#heartbeat_destination1 = 'host0_ip2'
#heartbeat_destination_port1 = 9694
#heartbeat_device1 = ''

# -- query mode --

wd_life_point=3
# lifecheck retry times
# (change requires restart)
wd_lifecheck_query='SELECT 1'
# lifecheck query to pgpool from watchdog
# (change requires restart)
wd_lifecheck_dbname='template1'
# Database name connected for lifecheck
# (change requires restart)
wd_lifecheck_user='nobody'
# watchdog user monitoring pgpools in lifecheck
# (change requires restart)
wd_lifecheck_password=''
# Password for watchdog user in lifecheck
# (change requires restart)

# - Other pgpool Connection Settings -

#other_pgpool_hostname0 = 'host0'
# Host name or IP address to connect to for other pgpool 0
# (change requires restart)
#other_pgpool_port0 = 5432
# Port number for othet pgpool 0
# (change requires restart)
#other_wd_port0 = 9000
# Port number for othet watchdog 0
# (change requires restart)
#other_pgpool_hostname1 = 'host1'
#other_pgpool_port1 = 5432
#other_wd_port1 = 9000


#------------------------------------------------------------------------------
# OTHERS
#------------------------------------------------------------------------------
relcache_expire=0
# Life time of relation cache in seconds.
# 0 means no cache expiration(the default).
# The relation cache is used for cache the
# query result against PostgreSQL system
# catalog to obtain various information
# including table structures or if it's a
# temporary table or not. The cache is
# maintained in a pgpool child local memory
# and being kept as long as it survives.
# If someone modify the table by using
# ALTER TABLE or some such, the relcache is
# not consistent anymore.
# For this purpose, cache_expiration
# controls the life time of the cache.

relcache_size=256
# Number of relation cache
# entry. If you see frequently:
# "pool_search_relcache: cache replacement happend"
# in the pgpool log, you might want to increate this number.

check_temp_table=on
# If on, enable temporary table check in SELECT statements.
# This initiates queries against system catalog of primary/master
# thus increases load of master.
# If you are absolutely sure that your system never uses temporary tables
# and you want to save access to primary/master, you could turn this off.
# Default is on.

check_unlogged_table=on
# If on, enable unlogged table check in SELECT statements.
# This initiates queries against system catalog of primary/master
# thus increases load of master.
# If you are absolutely sure that your system never uses unlogged tables
# and you want to save access to primary/master, you could turn this off.
# Default is on.

#------------------------------------------------------------------------------
# IN MEMORY QUERY MEMORY CACHE
#------------------------------------------------------------------------------
memory_cache_enabled=off
# If on, use the memory cache functionality, off by default
memqcache_method='shmem'
# Cache storage method. either 'shmem'(shared memory) or
# 'memcached'. 'shmem' by default
# (change requires restart)
memqcache_memcached_host='localhost'
# Memcached host name or IP address. Mandatory if
# memqcache_method = 'memcached'.
# Defaults to localhost.
# (change requires restart)
memqcache_memcached_port=11211
# Memcached port number. Mondatory if memqcache_method = 'memcached'.
# Defaults to 11211.
# (change requires restart)
memqcache_total_size=67108864
# Total memory size in bytes for storing memory cache.
# Mandatory if memqcache_method = 'shmem'.
# Defaults to 64MB.
# (change requires restart)
memqcache_max_num_cache=1000000
# Total number of cache entries. Mandatory
# if memqcache_method = 'shmem'.
# Each cache entry consumes 48 bytes on shared memory.
# Defaults to 1,000,000(45.8MB).
# (change requires restart)
memqcache_expire=0
# Memory cache entry life time specified in seconds.
# 0 means infinite life time. 0 by default.
# (change requires restart)
memqcache_auto_cache_invalidation=on
# If on, invalidation of query cache is triggered by corresponding
# DDL/DML/DCL(and memqcache_expire).  If off, it is only triggered
# by memqcache_expire.  on by default.
# (change requires restart)
memqcache_maxcache=409600
# Maximum SELECT result size in bytes.
# Must be smaller than memqcache_cache_block_size. Defaults to 400KB.
# (change requires restart)
memqcache_cache_block_size=1048576
# Cache block size in bytes. Mandatory if memqcache_method = 'shmem'.
# Defaults to 1MB.
# (change requires restart)
memqcache_oiddir='/var/log/pgpool/oiddir'
# Temporary work directory to record table oids
# (change requires restart)
white_memqcache_table_list=''
# Comma separated list of table names to memcache
# that don't write to database
# Regexp are accepted
black_memqcache_table_list=''
backend_weight1=1
backend_port1=5432
other_wd_port0=9000
backend_data_directory1='/home/postgres/databases/testdb'
other_pgpool_hostname0='192.168.15.55'
other_pgpool_port0=9999
backend_flag1='ALLOW_TO_FAILOVER'
backend_hostname1='192.168.15.56'
                                   # Comma separated list of table names not to memcache
                                   # that don't write to database
                                   # Regexp are accepted