[pgpool-general: 2787] Re: both pgpool servers are master and using the same virtual IP
Attila Heidrich
attila.heidrich at gmail.com
Tue Apr 22 22:25:44 JST 2014
Hi!
The summary is generated by a script called "pool" :
https://gist.github.com/dansimau/1582492
Unfortunately there are no logs at all, logging was temporary disabled.
The current (normal) status is:
root at control-1:~# salt postg\* cmd.run "pool status"
postgres-1:
Node: 0
Host: postgres-1
Port: 5433
Weight: 0.500000
Status: Up, in pool (1)
Role: Master
Node: 1
Host: postgres-2
Port: 5433
Weight: 0.500000
Status: Up, in pool (1)
Role: Master
postgres-2:
Node: 0
Host: postgres-2
Port: 5433
Weight: 0.500000
Status: Up, in pool and connected (2)
Role: Master
Node: 1
Host: postgres-1
Port: 5433
Weight: 0.500000
Status: Up, in pool and connected (2)
Role: Master
IP address status
postgres-2:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP
qlen 1000
link/ether 00:50:56:8f:7e:7b brd ff:ff:ff:ff:ff:ff
inet 10.6.14.11/24 brd 10.6.14.255 scope global eth0
valid_lft forever preferred_lft forever
inet 10.6.14.15/24 scope global secondary eth0
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:fe8f:7e7b/64 scope link
valid_lft forever preferred_lft forever
postgres-1:
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP
qlen 1000
link/ether 00:50:56:8f:58:ab brd ff:ff:ff:ff:ff:ff
inet 10.6.14.10/24 brd 10.6.14.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::250:56ff:fe8f:58ab/64 scope link
valid_lft forever preferred_lft forever
Config files with modified passwords:
postgres-2:
listen_addresses = '*'
port = 5432
socket_dir = '/var/run/postgresql'
pcp_port = 9898
pcp_socket_dir = '/var/run/postgresql'
backend_hostname0 = 'postgres-2'
backend_port0 = 5433
backend_weight0 = 1
backend_data_directory0 = '/var/lib/postgresql/9.3'
backend_flag0 = 'ALLOW_TO_FAILOVER'
backend_hostname1 = 'postgres-1'
backend_port1 = 5433
backend_weight1 = 1
backend_data_directory1 = '/var/lib/postgresql/9.3'
backend_flag1 = 'ALLOW_TO_FAILOVER'
enable_pool_hba = on
pool_passwd = ''
authentication_timeout = 60
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 = 'syslog'
print_timestamp = on
log_connections = off
log_hostname = on
log_statement = off
log_per_node_statement = on
log_standby_delay = 'none'
syslog_facility = 'LOCAL0'
syslog_ident = 'pgpool'
debug_level = 0
pid_file_name = '/var/run/postgresql/pgpool.pid'
logdir = '/var/log/postgresql'
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
health_check_period = 15
health_check_timeout = 5
health_check_user = 'pg_admin'
health_check_password = 'P4ssw0rd'
health_check_max_retries = 2
health_check_retry_delay = 1
failover_command = 'echo $(date): host:%h, new master id:%m, old master
id:%M >> /var/lib/pgsql/failover.log'
failback_command = 'echo $(date): host:%h, new master id:%m, old master
id:%M >> /var/lib/pgsql/failback.log'
fail_over_on_backend_error = on
recovery_user = 'pg_admin'
recovery_password = 'P4ssw0rd'
recovery_1st_stage_command = 'copy_base_backup'
recovery_2nd_stage_command = 'switch_xlog'
recovery_timeout = 90
client_idle_limit_in_recovery = 0
use_watchdog = on
trusted_servers = 'postgres-1'
delegate_IP = '10.6.14.15'
wd_hostname = 'postgres-2'
wd_port = 9000
wd_interval = 5
ping_path = '/bin'
ifconfig_path = '/var/lib/postgresql'
if_up_cmd = 'ip add add 10.6.14.15/24 dev eth0'
if_down_cmd = 'ip add del 10.6.14.15/24 dev eth0'
arping_path = '/var/lib/postgresql'
arping_cmd = 'arping -U 10.6.14.15 -w 1'
wd_life_point = 3
wd_lifecheck_query = 'SELECT 1'
wd_escalation_command = ''
wd_lifecheck_method = 'heartbeat'
wd_interval = 15
wd_heartbeat_port = 9694
wd_heartbeat_keepalive = 5
wd_heartbeat_deadtime = 30
heartbeat_destination0 = 'postgres-1'
heartbeat_destination_port0 = 9694
heartbeat_device0 = ''
other_pgpool_hostname0 = 'postgres-1'
other_pgpool_port0 = 5432
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 = ''
postgres-1:
listen_addresses = '*'
port = 5432
socket_dir = '/var/run/postgresql'
pcp_port = 9898
pcp_socket_dir = '/var/run/postgresql'
backend_hostname0 = 'postgres-1'
backend_port0 = 5433
backend_weight0 = 1
backend_data_directory0 = '/var/lib/postgresql/9.3'
backend_flag0 = 'ALLOW_TO_FAILOVER'
backend_hostname1 = 'postgres-2'
backend_port1 = 5433
backend_weight1 = 1
backend_data_directory1 = '/var/lib/postgresql/9.3'
backend_flag1 = 'ALLOW_TO_FAILOVER'
enable_pool_hba = on
pool_passwd = ''
authentication_timeout = 60
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 = 'syslog'
print_timestamp = on
log_connections = off
log_hostname = on
log_statement = off
log_per_node_statement = on
log_standby_delay = 'none'
syslog_facility = 'LOCAL0'
syslog_ident = 'pgpool'
debug_level = 0
pid_file_name = '/var/run/postgresql/pgpool.pid'
logdir = '/var/log/postgresql'
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
health_check_period = 15
health_check_timeout = 5
health_check_user = 'pg_admin'
health_check_password = 'P4ssw0rd'
health_check_max_retries = 2
health_check_retry_delay = 1
failover_command = 'echo $(date): host:%h, new master id:%m, old master
id:%M >> /var/lib/pgsql/failover.log'
failback_command = 'echo $(date): host:%h, new master id:%m, old master
id:%M >> /var/lib/pgsql/failback.log'
fail_over_on_backend_error = on
recovery_user = 'pg_admin'
recovery_password = 'P4ssw0rd'
recovery_1st_stage_command = 'copy_base_backup'
recovery_2nd_stage_command = 'switch_xlog'
recovery_timeout = 90
client_idle_limit_in_recovery = 0
use_watchdog = on
trusted_servers = 'postgres-2'
delegate_IP = '10.6.14.15'
wd_hostname = 'postgres-1'
wd_port = 9000
wd_interval = 5
ping_path = '/bin'
ifconfig_path = '/var/lib/postgresql'
if_up_cmd = 'ip add add 10.6.14.15/24 dev eth0'
if_down_cmd = 'ip add del 10.6.14.15/24 dev eth0'
arping_path = '/var/lib/postgresql'
arping_cmd = 'arping -U 10.6.14.15 -w 1'
wd_life_point = 3
wd_lifecheck_query = 'SELECT 1'
wd_escalation_command = ''
wd_lifecheck_method = 'heartbeat'
wd_interval = 15
wd_heartbeat_port = 9694
wd_heartbeat_keepalive = 5
wd_heartbeat_deadtime = 30
heartbeat_destination0 = 'postgres-2'
heartbeat_destination_port0 = 9694
heartbeat_device0 = ''
other_pgpool_hostname0 = 'postgres-2'
other_pgpool_port0 = 5432
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 = ''
2014-04-18 10:36 GMT+02:00 Yugo Nagata <nagata at sraoss.co.jp>:
> Hi,
>
> On Tue, 15 Apr 2014 12:24:51 +0200
> Attila Heidrich <attila.heidrich at gmail.com> wrote:
>
> > Dear guys!
> >
> > Where to find the problem in the situation above?
> >
> > No logs at all, for some reason pgpool stopped logging (usually it uses
> > syslog).
>
> The followings seem a summarised results of some command (pcp command or
> show pool_nodes?). I want to konw the actual command results. Could you
> please send me these, log messages, and pgpool.conf?
>
> >
> > root at postgres-1:/etc/pgpool2# pool status
> > Node: 0
> > Host: postgres-1
> > Port: 5433
> > Weight: 0.500000
> > Status: Up, in pool (1)
> > Role: Master
> >
> > Node: 1
> > Host: postgres-2
> > Port: 5433
> > Weight: 0.500000
> > Status: Up, in pool (1)
> > Role: Master
> >
> > root at postgres-2:/etc/pgpool2# pool status
> > Node: 0
> > Host: postgres-2
> > Port: 5433
> > Weight: 0.500000
> > Status: Up, in pool and connected (2)
> > Role: Master
> >
> > Node: 1
> > Host: postgres-1
> > Port: 5433
> > Weight: 0.500000
> > Status: Up, in pool and connected (2)
> > Role: Master
> >
> > This isn't the first time, usually happens in a high load situation.
> >
> > Attila
>
>
> --
> Yugo Nagata <nagata at sraoss.co.jp>
>
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