[Pgpool-general] is it expected pgpool slows down

[gurkan at resolution.com]

Hi,
I(we) am working on running our system on cluster.
Pgpool is the part of our equation. I intented to use pgpool for 
load balancing (NOT REPLICATION). Tomcat points to pgpool, and I run some
testing. It appears that if run cluster with pgpool it slows down like
30sec(takes 35-38sec)
to login, if I run it without pgpool it take 6-10sec.

My question is this expected? OR is my pgpool.conf is not right?
(I posted my pgpool.conf also)

because I set to
# Replication mode
replication_mode = false (because DB does it for us)

# Load balancing mode, i.e., all SELECTs except in a transaction block
# are load balanced.  This is ignored if replication_mode is false.
load_balance_mode = false

(It is set to false, because it says it is ignored if replication_mode is set to
false)

Is my pgpool.conf set correclty for my needs. Is it doing load balancing?
Even it will be really helpful if someone tell me how to test the load balancing.

Thanks for help.

pgpool.conf
------------------------------------------------
#
# pgpool configuration file sample
# $Header: /cvsroot/pgpool/pgpool/pgpool.conf.sample,v 1.4 2006/02/18 13:13:37
t-ishii Exp $

# Host name or IP address to listen on: '*' for all, '' for no TCP/IP
# connections
#listen_addresses = 'localhost'
listen_addresses = 'baba1'

# Port number for pgpool
port = 9999

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

# Host name where PostgreSQL server is running on.  '' means localhost
# using Unix domain socket.
backend_host_name = 'baba1'

# port number PostgreSQL server is running on
backend_port = 5444

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

# Host name where secondary PostgreSQL server is running on.  '' means
# localhost using Unix domain socket.
secondary_backend_host_name = 'baba2'

# Port number secondary PostgreSQL server is running on.  0 means no
# secondary PostgreSQL.
secondary_backend_port = 5444

# Number of pre-forked child processes
num_init_children = 32

# Number of connection pools allowed for a child process
max_pool = 4

# 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

# Logging directory
logdir = '/tmp'

# Replication mode
replication_mode = false

# Set this to true if you want to avoid deadlock situations when
# replication is enabled.  There will, however, be a noticable performance
# degration.  A workaround is to set this to false and insert a /*STRICT*/
# comment at the beginning of the SQL command.
replication_strict = true

# When replication_strict is set to false, there will be a chance for
# deadlocks.  Set this to nonzero (in milliseconds) to detect this
# situation and resolve the deadlock by aborting current session.
replication_timeout = 5000

# Load balancing mode, i.e., all SELECTs except in a transaction block
# are load balanced.  This is ignored if replication_mode is false.
load_balance_mode = false

# Load balance weight for master and secondary.  The actual weight is
# calculated by weight_master divided by weight_secondary.  For
# example both
#
# weight_master = 10 and weight_secondary = 5
# weight_master = 4 and weight_secondary = 2
#
# are regarded as the master having double the weight compared to the
# secondary.  Master and secondary have the same weight in the default.
weight_master = 0.5
weight_secondary = 0.5

# If there is a data mismatch between master and secondary, start
# degeneration to stop replication mode.
replication_stop_on_mismatch = 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'

# If true print time stamp 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 = 0

# Health check user
health_check_user = 'nobody'

# If true, automatically lock table with INSERT statements to keep SERIAL
# data consistency.  An /*INSERT LOCK*/ comment has the same effect.  A
# /NO INSERT LOCK*/ comment disables the effect.
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 = false

# 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 = true
------------------------------------------------

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