[Pgpool-general] Pgpool-II connection problems when monitoring Heartbeat

[Maria Antonia Lajus Marrero]

Hello, I need anyone help me!!!

I'm pretty new working with cluster tools. I've a 4 node scheme to
ensure high availability, replication, connection pooling and load
balancing, 2 nodes are balancers and 2 are SQL(backends). Each
balancer has an instance of pgPool-II 3.0.3 and Heartbeat 2.1.3. the
SQL nodes have an instance of PostgreSQL 8.3.9. All of this solution
is on CentOS 5.5 operating system.
The pgPool-II service is monitoring by Heartbeat. The problem is, that
every morning after the servers are kept in a specific time without
attending requests, PGPool service's stop and every morning database
servers are down.
I need someone who can tell me what's happening. If this time is a
problem in the pgpool.conf configuration file or if a problem on the
issue of integration of the tools versions.
I wonder if there is any problem with the use of PostgreSQL version
8.3.9 and 3.0.3 pgPool-II?
I appreciate all the help you can give me.

This is the pgpool.conf file structure.

listen_addresses = '*'
port = 5432
pcp_port = 9898
socket_dir = '/var/run/postgresql'
pcp_socket_dir = '/var/run/postgresql'
backend_socket_dir = '/var/run/postgresql'
pcp_timeout = 10
num_init_children = 300
max_pool = 3
child_life_time = 300
connection_life_time = 0
child_max_connections = 0
client_idle_limit = 0
authentication_timeout = 60
logdir = '/var/run/postgresql'
pid_file_name=%26%2339%3B%2Fvar%2Frun%2Fpgpool%2Fpgpool%2Epid%26%2339%3B
replication_mode = true
load_balance_mode = true
replication_stop_on_mismatch = true
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
delay_threshold = 0
log_standby_delay = 'none'
connection_cache = true
health_check_timeout = 20
health_check_period = 0
health_check_user = 'pgpool2'
#failover_command = '/var/lib/pgsql/data/pgpool-failover %d %h %p %D %m %M'
failover_command = ''
#failback_command = '/var/lib/pgsql/data/pgpool-failback %d %h %p %D %m %M'
failback_command = ''
fail_over_on_backend_error = true
insert_lock = false
ignore_leading_white_space = true
log_statement = false
log_per_node_statement = false
log_connections = true
log_hostname=false
parallel_mode = false
enable_query_cache = false
pgpool2_hostname=%26%2339%3Bbalanceador03%26%2339%3B
system_db_hostname=%26%2339%3Blocalhost%26%2339%3B
system_db_port = 5432
system_db_dbname=%26%2339%3Bpgpool%26%2339%3B
system_db_schema = 'pgpool_catalog'
system_db_user = 'pgpool'
system_db_password = ''
backend_hostname0 = '15.120.190.12'
backend_port0 = 5432
backend_weight0 = 1
backend_data_directory0 = '/var/lib/pgsql/data/'
backend_hostname1 = '15.120.190.11'
backend_port1 = 5432
backend_weight1 = 1
backend_data_directory1 = '/var/lib/pgsql/data/'
enable_pool_hba = true
recovery_user = 'pgpool2'
recovery_password = ''
recovery_1st_stage_command = 'base-backup'
#recovery_1st_stage_command = ''
recovery_2nd_stage_command = 'pgpool-recovery-pitr'
#recovery_2nd_stage_command = ''
recovery_timeout = 300
client_idle_limit_in_recovery = 0
lobj_lock_table = ''
ssl = false
debug_level = 0


Mary