[pgpool-general: 1839] Error in pgpool log file: ERROR: pid 13491: delete_cache_on_memcached: NOT FOUND
Özhan Karaman
ozhankaraman at yorenet.com
Wed Jun 12 23:29:55 JST 2013
Hi;
We are using pgpool II (3.2.4), memcached(1.2.6-5.17.1) and libmemcached(1.0.17) on updated SLES 11 SP2 server which is connected to Master/Slave 3 node Postgresql 9.1.9 Cluster.
Caching and Master/Slave Setup works great but we noticed that we started to get some delete_cache_on_memcached erros on logs.
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
2013-06-12 15:44:03 ERROR: pid 13710: delete_cache_on_memcached: NOT FOUND
Also i notice that oid files are generating under memqcache_oiddir dir like below.
pgpool:~ # ls -lA /var/log/pgpool/oiddir/16386/
total 25496
-rw------- 1 root root 842784 Jun 12 15:55 16429
-rw------- 1 root root 1000992 Jun 12 15:55 16435
-rw------- 1 root root 3231488 Jun 12 15:55 16441
-rw------- 1 root root 20032 Jun 12 15:54 16447
-rw------- 1 root root 4647456 Jun 12 15:55 16466
-rw------- 1 root root 1178368 Jun 12 15:55 16474
-rw------- 1 root root 2496 Jun 12 15:55 16479
-rw------- 1 root root 1115136 Jun 12 15:55 16485
-rw------- 1 root root 3127840 Jun 12 15:55 16490
-rw------- 1 root root 1299424 Jun 12 15:55 16502
-rw------- 1 root root 128 Jun 12 10:31 16508
-rw------- 1 root root 160 Jun 12 10:31 16516
-rw------- 1 root root 3381600 Jun 12 15:55 16549
-rw------- 1 root root 4466816 Jun 12 15:55 16556
-rw------- 1 root root 85664 Jun 12 15:55 16578
-rw------- 1 root root 3168 Jun 12 15:19 16621
-rw------- 1 root root 1088 Jun 12 10:46 16642
-rw------- 1 root root 10432 Jun 12 15:54 16648
-rw------- 1 root root 4960 Jun 12 15:19 16677
-rw------- 1 root root 10432 Jun 12 15:54 16695
-rw------- 1 root root 10432 Jun 12 15:54 16704
-rw------- 1 root root 64 Jun 12 15:55 16756
-rw------- 1 root root 1553024 Jun 12 15:55 16770
I also wrote our config below:
So how could i fix this "delete_cache_on_memcached: NOT FOUND " error, is this a known bug or this issue occurs from my setup? Does anyone experience issue like me?
Regards
Özhan
##############################
listen_addresses = '192.168.0.1'
port = 5437
socket_dir = '/tmp'
# - pgpool Communication Manager Connection Settings -
pcp_port = 9898
pcp_socket_dir = '/tmp'
backend_hostname0 = '192.168.1.1'
backend_port0 = 5432
backend_weight0 = 2
backend_data_directory0 = '/u02/pgdata91'
backend_flag0 = 'ALLOW_TO_FAILOVER'
backend_hostname1 = '192.168.1.2'
backend_port1 = 5432
backend_weight1 = 30
backend_data_directory1 = '/u02/pgdata91'
backend_flag1 = 'ALLOW_TO_FAILOVER'
backend_hostname2 = '192.168.1.3'
backend_port2 = 5432
backend_weight2 = 30
backend_data_directory2 = '/u02/pgdata91'
backend_flag2 = 'ALLOW_TO_FAILOVER'
# - Authentication -
enable_pool_hba = off
pool_passwd = 'pool_passwd'
authentication_timeout = 60
# - SSL Connections -
ssl = off
#ssl_key = './server.key'
#ssl_cert = './server.cert'
#ssl_ca_cert = ''
#ssl_ca_cert_dir = ''
#------------------------------------------------------------------------------
# POOLS
#------------------------------------------------------------------------------
# - Pool size -
num_init_children = 64
max_pool = 2
child_life_time = 300
child_max_connections = 1000
connection_life_time = 600
client_idle_limit = 0
#------------------------------------------------------------------------------
# LOGS
#------------------------------------------------------------------------------
# - Where to log -
log_destination = 'syslog'
print_timestamp = on
log_connections = off
log_hostname = off
log_statement = off
log_per_node_statement = on
log_standby_delay = 'none'
# - Syslog specific -
syslog_facility = 'LOCAL0'
syslog_ident = 'pgpool'
# - Debug -
debug_level = 0
#------------------------------------------------------------------------------
# FILE LOCATIONS
#------------------------------------------------------------------------------
pid_file_name = '/var/run/pgpool.pid'
logdir = '/tmp'
#------------------------------------------------------------------------------
# CONNECTION POOLING
#------------------------------------------------------------------------------
connection_cache = on
reset_query_list = 'ABORT; DISCARD ALL'
#------------------------------------------------------------------------------
# REPLICATION MODE
#------------------------------------------------------------------------------
replication_mode = off
replicate_select = off
insert_lock = off
lobj_lock_table = ''
# - Degenerate handling -
replication_stop_on_mismatch = off
failover_if_affected_tuples_mismatch = off
#------------------------------------------------------------------------------
# LOAD BALANCING MODE
#------------------------------------------------------------------------------
load_balance_mode = on
ignore_leading_white_space = on
white_function_list = ''
black_function_list = 'currval,lastval,nextval,setval'
#------------------------------------------------------------------------------
# MASTER/SLAVE MODE
#------------------------------------------------------------------------------
master_slave_mode = on
master_slave_sub_mode = 'stream'
# - Streaming -
sr_check_period = 0
sr_check_user = 'postgres'
sr_check_password = ''
delay_threshold = 0
# - Special commands -
follow_master_command = ''
#------------------------------------------------------------------------------
# PARALLEL MODE
#------------------------------------------------------------------------------
parallel_mode = off
pgpool2_hostname = ''
#------------------------------------------------------------------------------
# HEALTH CHECK
#------------------------------------------------------------------------------
health_check_period = 10
health_check_timeout = 20
health_check_user = 'pgozi91'
health_check_password = ''
health_check_max_retries = 0
health_check_retry_delay = 1
#------------------------------------------------------------------------------
# FAILOVER AND FAILBACK
#------------------------------------------------------------------------------
failover_command = '/usr/local/bin/failover.sh %d %H'
failback_command = ''
fail_over_on_backend_error = on
#------------------------------------------------------------------------------
# ONLINE RECOVERY
#------------------------------------------------------------------------------
recovery_user = 'nobody'
recovery_password = ''
recovery_1st_stage_command = ''
recovery_2nd_stage_command = ''
recovery_timeout = 90
client_idle_limit_in_recovery = 0
#------------------------------------------------------------------------------
# WATCHDOG
#------------------------------------------------------------------------------
use_watchdog = off
trusted_servers = ''
delegate_IP = ''
wd_hostname = ''
wd_port = 9000
wd_interval = 10
ping_path = '/bin'
ifconfig_path = '/sbin'
if_up_cmd = 'ifconfig eth0:0 inet $_IP_$ netmask 255.255.255.0'
if_down_cmd = 'ifconfig eth0:0 down'
arping_path = '/usr/sbin' # arping command path
arping_cmd = 'arping -U $_IP_$ -w 1'
wd_life_point = 3
wd_lifecheck_query = 'SELECT 1'
#------------------------------------------------------------------------------
# OTHERS
#------------------------------------------------------------------------------
relcache_expire = 0
relcache_size = 256
check_temp_table = off
#------------------------------------------------------------------------------
# ON MEMORY QUERY MEMORY CACHE
#------------------------------------------------------------------------------
memory_cache_enabled = on
memqcache_method = 'memcached'
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 = ''
More information about the pgpool-general
mailing list