[Pgpool-general] connections not pooling

[Johnny Tan]

I setup pgpool-3.0.4 (config attached) in our staging environment. In
staging, we have 5 servers which make a total of 35 connections
(multiple rails thin webservers on each).

In pgpool, I see 35 connections from the 5 servers. In the backend db,
I expected to see less than 35, but I don't. I see all 35 connections.

Is this because the thin server makes a persistent connection? If so,
then pgpool won't help me in terms of pooling connections?

johnny

/etc/pgpool-II-90/pgpool.conf:

listen_addresses = '*'
port = 9999
pcp_port = 9898
socket_dir = '/tmp'
pcp_socket_dir = '/tmp'
backend_socket_dir = '/var/run/pgpool-II-90'
pcp_timeout = 10
num_init_children = 40
max_pool = 6
child_life_time = 300
connection_life_time = 0
child_max_connections = 0
client_idle_limit = 0
authentication_timeout = 60
logdir = '/var/log/pgpool-II'
pid_file_name = '/var/run/pgpool-II-90/pgpool.pid'
replication_mode = false
load_balance_mode = false
replication_stop_on_mismatch = false
failover_if_affected_tuples_mismatch = false
replicate_select = false
reset_query_list = 'ABORT; DISCARD ALL'
white_function_list = ''
black_function_list = 'nextval,setval'
print_timestamp = true
master_slave_mode = false
master_slave_sub_mode = 'slony'
delay_threshold = 0
log_standby_delay = 'none'
connection_cache = true
health_check_timeout = 20
health_check_period = 0
health_check_user = 'nobody'
failover_command = ''
failback_command = ''
fail_over_on_backend_error = true
insert_lock = true
ignore_leading_white_space = true
log_statement = false
log_per_node_statement = false
log_connections = false
log_hostname = false
parallel_mode = false
enable_query_cache = false
pgpool2_hostname = ''
system_db_hostname = 'localhost'
system_db_port = 5432
system_db_dbname = 'pgpool'
system_db_schema = 'pgpool_catalog'
system_db_user = 'pgpool'
system_db_password = ''
backend_hostname0 = 'db-staging9'
backend_port0 = 5432
backend_weight0 = 1
backend_data_directory0 = '/var/db/postgresql/data'
enable_pool_hba = false
recovery_user = 'nobody'
recovery_password = ''
recovery_1st_stage_command = ''
recovery_2nd_stage_command = ''
recovery_timeout = 90
client_idle_limit_in_recovery = 0
lobj_lock_table = ''
ssl = false
debug_level = 1