[Pgpool-general] pgpool II 2.2 can't see any nodes

Tue Apr 14 17:24:11 UTC 2009

Hi there,

I'm searching for a solution to make my pgpool 2.2 works.

I setup 2 debian servers with postgresql 8.3 and pgpool II 2.2 on EC2 but when I checked using pgpooladmin, even the node from itself is down, he can't see his own node or db. What am I missing here? What is there to check on my servers?

below is the copy of my pgpool.conf and pgpool.log, hope you could help me with this.

Thank you so much in advance,

Raleigh Guevarra
Skype: raleigh.guevarra
Yahoo! Messenger: deathect at yahoo.com

-=[ pgpool.log ]=-

2009-04-14 16:27:30 LOG: pid 3073: pgpool successfully started   
2009-04-14 16:27:30 DEBUG: pid 3106: I am PCP 3106   
2009-04-14 16:28:32 DEBUG: pid 3106: I am PCP 3106 accept fd 5   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'M'   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: salt sent to the client   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'R'   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: authentication OK   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'L'   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: 0 node(s) found   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'X'   
2009-04-14 16:28:32 DEBUG: pid 3106: pcp_child: client disconnecting. close connection   
2009-04-14 16:28:35 DEBUG: pid 3106: I am PCP 3106 accept fd 5   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'M'   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: salt sent to the client   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'R'   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: authentication OK   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'L'   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: 0 node(s) found   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: received PCP packet type of service 'X'   
2009-04-14 16:28:35 DEBUG: pid 3106: pcp_child: client disconnecting. close connection 

-=[ pgpool.conf ]=-

#
# pgpool-II configuration file sample
# $Header: /cvsroot/pgpool/pgpool-II/pgpool.conf.sample,v 1.26 2009/02/15 05:26:28 t-ishii Exp $

# Host name or IP address to listen on: '*' for all, '' for no TCP/IP
# connections
listen_addresses = '*'

# Port number for pgpool
port = 9999

# Port number for pgpool communication manager
pcp_port = 9898

# Unix domain socket path.  (The Debian package defaults to
# /var/run/postgresql.)
socket_dir = '/var/run/postgresql'

# Unix domain socket path for pgpool communication manager.
# (Debian package defaults to /var/run/postgresql)
#pcp_socket_dir = '/tmp'
pcp_socket_dir = '/var/run/postgresql'

# Unix domain socket path for the backend. Debian package defaults to /var/run/postgresql!
#backend_socket_dir = '/tmp'
backend_socket_dir = '/var/run/postgresql'

# pgpool communication manager timeout. 0 means no timeout, but strongly not recommended!
pcp_timeout = 10

# number of pre-forked child process
num_init_children = 32

# Number of connection pools allowed for a child process
max_pool = 3

# If idle for this many seconds, child exits.  0 means no timeout.
child_life_time = 300

# If idle for this many seconds, connection to PostgreSQL closes.
# 0 means no timeout.
connection_life_time = 0

# If child_max_connections connections were received, child exits.
# 0 means no exit.
child_max_connections = 0

# If client_idle_limit is n (n > 0), the client is forced to be
# disconnected whenever after n seconds idle (even inside an explicit
# transactions!)
# 0 means no disconnect.
client_idle_limit = 0

# Maximum time in seconds to complete client authentication.
# 0 means no timeout.
authentication_timeout = 60

# Logging directory
#logdir = '/tmp'
#logdir = '/etc/pgpool_log/'
logdir = '/var/log/pgpool_log/'

# pid file name
pid_file_name = '/var/run/pgpool/pgpool.pid'

# Replication mode
replication_mode = false

# Load balancing mode, i.e., all SELECTs are load balanced.
# This is ignored if replication_mode is false.
#load_balance_mode = false
load_balance_mode = true

# if there's a data mismatch between master and secondary
# start degeneration to stop replication mode
replication_stop_on_mismatch = false

# If true, replicate SELECT statement when load balancing is disabled.
# If false, it is only sent to the master node.
replicate_select = false

# Semicolon separated list of queries to be issued at the end of a session
reset_query_list = 'ABORT; RESET ALL; SET SESSION AUTHORIZATION DEFAULT'
# for 8.3 or newer PostgreSQL versions DISCARD ALL can be used as
# follows. However beware that DISCARD ALL holds exclusive lock on
# pg_listener so it will be a serious performance problem if there are
# lots of concurrent sessions.
# reset_query_list = 'ABORT; DISCARD ALL'

# If true print timestamp on each log line.
print_timestamp = true

# If true, operate in master/slave mode.
master_slave_mode = false

# If true, cache connection pool.
connection_cache = true

# Health check timeout.  0 means no timeout.
health_check_timeout = 20

# Health check period.  0 means no health check.
health_check_period = 10

# Health check user
#health_check_user = 'nobody'
health_check_user = 'postgres'

# Execute command by failover.
# special values:  %d = node id
#                  %h = host name
#                  %p = port number
#                  %D = database cluster path
#                  %m = new master node id
#                  %M = old master node id
#                  %% = '%' character
#
failover_command = ''

# Execute command by failback.
# special values:  %d = node id
#                  %h = host name
#                  %p = port number
#                  %D = database cluster path
#                  %m = new master node id
#                  %M = old master node id
#                  %% = '%' character
#
failback_command = ''

# If true, automatically locks a table with INSERT statements to keep
# SERIAL data consistency.  If the data does not have SERIAL data
# type, no lock will be issued. An /*INSERT LOCK*/ comment has the
# same effect.  A /NO INSERT LOCK*/ comment disables the effect.
#insert_lock = true
insert_lock = false

# If true, ignore leading white spaces of each query while pgpool judges
# whether the query is a SELECT so that it can be load balanced.  This
# is useful for certain APIs such as DBI/DBD which is known to adding an
# extra leading white space.
ignore_leading_white_space = true

# If true, print all statements to the log.  Like the log_statement option
# to PostgreSQL, this allows for observing queries without engaging in full
# debugging.
#log_statement = false
log_statement = true

# If true, incoming connections will be printed to the log.
#log_connections = false
log_connections = true

# If true, hostname will be shown in ps status. Also shown in
# connection log if log_connections = true.
# Be warned that this feature will add overhead to look up hostname.
#log_hostname = true
log_hostname = false

# if non 0, run in parallel query mode
parallel_mode = true

# if non 0, use query cache
enable_query_cache = false

#set pgpool2 hostname 
#pgpool2_hostname = ''
pgpool2_hostname = '127.0.0.1'

# system DB info
#system_db_hostname = 'localhost'
system_db_hostname = '127.0.0.1'
system_db_port = 5433
system_db_dbname = 'pgpool'
system_db_schema = 'pgpool_catalog'
system_db_user = 'myuser'
system_db_password = 'mypassword'

# backend_hostname, backend_port, backend_weight
# here are examples
#backend_hostname1 = 'myhost2'
#backend_port1 = 5433
#backend_weight1 = 1
#backend_data_directory1 = '/data1'

# - HBA -

# If true, use pool_hba.conf for client authentication. In pgpool-II
# 1.1, the default value is false. The default value will be true in
# 1.2.
enable_pool_hba = true

# - online recovery -
# online recovery user
#recovery_user = 'nobody'
#recovery_user = 'postgres'
recovery_user = 'myuser'

# online recovery password
#recovery_password = ''
recovery_password = 'mypassword'

# execute a command in first stage.
#recovery_1st_stage_command = ''
recovery_1st_stage_command = 'pgpool_recovery'

# execute a command in second stage.
#recovery_2nd_stage_command = ''
recovery_1st_stage_command = 'pgpool_recovery'

# maximum time in seconds to wait for the recovering node's postmaster
# start-up. 0 means no wait.
# this is also used as a timer waiting for clients disconnected before
# starting 2nd stage
recovery_timeout = 90

# If client_idle_limit_in_recovery is n (n > 0), the client is forced
# to be disconnected whenever after n seconds idle (even inside an
# explicit transactions!)  0 means no disconnect. This parameter only
# takes effect in recovery 2nd stage.
client_idle_limit_in_recovery = 0
replication_timeout = 5000
recovery_2nd_stage_command = ''
backend_hostname0 = '127.0.0.1'
backend_port0 = 5433
backend_weight0 = 1
backend_data_directory0 = '/data'

backend_hostname1 = '123.456.789.10'
backend_port1 = 5433
backend_weight1 = 1
backend_data_directory1 = '/data'