[pgpool-general: 2371] Loss of client connection when standby is rebooted

[Fred]

I am running postgres 9.2.6 in streaming replication mode with pgpool 3.3.1
in master slave mode.  I have db1 with postgres and pgpool, and db2 with
postgres and pgpool.  The delegate/floating IP is 10.10.10.234.  When I
have one of the db's as both master database and master pgpool with the ip
bound to it, and a client connected in using the delegate, and I reboot db2
(the standby), the client looses their connection.  Is this expected?  I
did not expect for the client to see any impact when I reboot the standby
postgres/pgpool server.  Below is my config.

Thanks!



My config:

listen_addresses = '*'
port = 9999
socket_dir = '/var/run/pgpool'
pcp_port = 9898
pcp_socket_dir = '/var/run/pgpool'
pcp_timeout = 100
backend_hostname0 = '10.10.10.133'
backend_port0 = 5432
backend_weight0 = 1
backend_data_directory0 = '/var/lib/pgsql/9.2/data'
backend_flag0 = 'ALLOW_TO_FAILOVER'
backend_hostname1 = '10.10.10.233'
backend_port1 = 5432
backend_weight1 = 1
backend_data_directory1 = '/var/lib/pgsql/9.2/data'
backend_flag1 = 'ALLOW_TO_FAILOVER'
enable_pool_hba = on
authentication_timeout = 15
ssl = off
num_init_children = 32
max_pool = 4
child_life_time = 300
child_max_connections = 0
connection_life_time = 0
client_idle_limit = 0
log_destination = 'stderr'
print_timestamp = on
log_connections = off
log_hostname = off
log_statement = off
log_per_node_statement = off
log_standby_delay = 'none'
syslog_facility = 'LOCAL0'
syslog_ident = 'pgpool'
debug_level = 0
pid_file_name = '/var/run/pgpool/pgpool.pid'
logdir = '/var/log/pgpool'
connection_cache = on
reset_query_list = 'ABORT; DISCARD ALL'
replication_mode = off
replicate_select = off
insert_lock = on
lobj_lock_table = ''
replication_stop_on_mismatch = off
failover_if_affected_tuples_mismatch = off
load_balance_mode = off
ignore_leading_white_space = on
white_function_list = ''
black_function_list = 'nextval,setval'
master_slave_mode = on
master_slave_sub_mode = 'stream'
sr_check_period = 0
sr_check_user = 'health_check'
delay_threshold = 0
follow_master_command = ''
parallel_mode = off
pgpool2_hostname = ''
system_db_hostname  = 'localhost'
system_db_port = 5432
system_db_dbname = 'pgpool'
system_db_schema = 'pgpool_catalog'
system_db_user = 'pgpool'
health_check_period = 5
health_check_timeout = 20
health_check_user = 'health_check'
health_check_max_retries = 1
health_check_retry_delay = 1
failover_command = '/var/lib/pgsql/9.2/failover.sh %d %P %H %R'
failback_command = ''
fail_over_on_backend_error = on
search_primary_node_timeout = 10
recovery_user = 'nobody'
recovery_password = ''
recovery_1st_stage_command = '/var/lib/pgsql/9.2/online_recovery.sh'
recovery_2nd_stage_command = ''
recovery_timeout = 90
client_idle_limit_in_recovery = 0
use_watchdog = on
trusted_servers = ''
delegate_IP = '10.10.10.234'
wd_hostname = '10.10.10.233'
wd_port = 9000
wd_interval = 3
ping_path = '/bin/'
ifconfig_path = '/var/lib/pgsql/sbin/'
if_up_cmd = 'ifconfig eth1:0 inet 10.10.10.234 netmask 255.255.255.128'
if_down_cmd = 'ifconfig eth1:0 down'
arping_cmd = 'arping -U $_IP_$ -w 1'
wd_life_point = 3
wd_lifecheck_query = 'SELECT 1'
wd_lifecheck_dbname = 'template1'
wd_lifecheck_user = 'health_check'
wd_lifecheck_password = 'foo1234'
other_pgpool_hostname0 = '10.10.10.133'
other_pgpool_port0 = 9999
other_wd_port0 = 9000
relcache_expire = 0
relcache_size = 256
check_temp_table = on
memory_cache_enabled = off
memqcache_method = 'shmem'
memqcache_memcached_host = 'localhost'
memqcache_memcached_port = 11211
memqcache_total_size = 67108864
memqcache_max_num_cache = 1000000
memqcache_expire = 0
memqcache_auto_cache_invalidation = on
memqcache_maxcache = 409600
memqcache_cache_block_size = 1048576
memqcache_oiddir = '/var/log/pgpool/oiddir'
white_memqcache_table_list = ''
black_memqcache_table_list = ''
wd_heartbeat_port = 9694
wd_heartbeat_deadtime = 20
heartbeat_destination0 = '10.10.10.133'
heartbeat_destination_port0 = 9694
heartbeat_device0 = 'eth1'
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