[pgpool-general: 625] exclude EXPLAIN from the pgpool.

[Nicolas Amato]

Hi,
I would like to know if I can exclude the command EXPLAIN from the pgpool.
It generates a lot of errors:

2012-06-13 09:35:11 ERROR: pid 15204: read_kind_from_backend: 1 th kind C
does not match with master or majority connection kind D
2012-06-13 09:35:11 ERROR: pid 15204: kind mismatch among backends.
Possible last query was: "EXPLAIN SELECT ...... " kind details are: 0[D]
1[C]
2012-06-13 09:35:11 LOG:   pid 15204: do_child: exits with status 1 due to
error

pool-II-3.1.3
PostgreSQL 9.1.2
both Server same Hardware.

Pgpool configuration:

listen_addresses = '*'
port = 5432
socket_dir = '/var/run/postgresql'
pcp_port = 9898
pcp_socket_dir = '/tmp'
backend_hostname0 = 'localhost'
backend_port0 = 5434
backend_weight0 = 1
backend_data_directory0 = '/var/lib/postgresql/9.1/main'
backend_flag0 = 'ALLOW_TO_FAILOVER'
backend_hostname1 = '172.16.0.1'
backend_port1 = 5434 #doveva essere a 5434
backend_weight1 = 1
backend_data_directory1 = '/var/lib/postgresql/9.1/main'
backend_flag1 = 'ALLOW_TO_FAILOVER'
enable_pool_hba = off
authentication_timeout = 60
# - SSL Connections -
num_init_children = 32
max_pool = 10
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 = on
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 = '/tmp'
connection_cache = on
reset_query_list = 'ABORT; DISCARD ALL'
replication_mode = on
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 = off
sr_check_period = 0
sr_check_user = 'nobody'
sr_check_password = ''
delay_threshold = 0
follow_master_command = ''
parallel_mode = off
enable_query_cache = off
pgpool2_hostname = 'localhost'
system_db_hostname  = 'localhost'
system_db_port = 5434
system_db_dbname = 'pgpool'
system_db_schema = 'pgpool_catalog'
system_db_user = 'pgpool'
system_db_password = ''
health_check_period = 0
health_check_timeout = 20
health_check_user = 'nobody'
health_check_password = ''

------------------------------------

The answers about these questions are welcome.

Best Regards

Nicolas
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