PgBouncer includes an admin database-style connection for getting valuable information about the pool stats, like counters, aggregations, client and server connection, etc. Those values are critical to be understood for a production alike environment.
Access the console through container socket and pgbouncer (this is not a database user) user:
kubectl exec -it -c postgres-util test-0 -- psql -p 6432 -d pgbouncer pgbouncer
psql (12.4 OnGres Inc., server 1.13.0/bouncer)
Type "help" for help.
pgbouncer=# \x
Expanded display is on.
pgbouncer=# show stats;
-[ RECORD 1 ]-----+----------
database | pgbouncer
total_xact_count | 1
total_query_count | 1
total_received | 0
total_sent | 0
total_xact_time | 0
total_query_time | 0
total_wait_time | 0
avg_xact_count | 0
avg_query_count | 0
avg_recv | 0
avg_sent | 0
avg_xact_time | 0
avg_query_time | 0
avg_wait_time | 0
pgbouncer=# show pools;
-[ RECORD 1 ]---------
database | pgbouncer
user | pgbouncer
cl_active | 1
cl_waiting | 0
sv_active | 0
sv_idle | 0
sv_used | 0
sv_tested | 0
sv_login | 0
maxwait | 0
maxwait_us | 0
pool_mode | statement
pgbouncer=# show clients;
-[ RECORD 1 ]+------------------------
type | C
user | pgbouncer
database | pgbouncer
state | active
addr | unix
port | 6432
local_addr | unix
local_port | 6432
connect_time | 2020-10-23 13:19:54 UTC
request_time | 2020-10-23 14:18:23 UTC
wait | 3445
wait_us | 617385
close_needed | 0
ptr | 0x1a5c350
link |
remote_pid | 28349
tls |
Other useful commands:
Available commands:
SHOW HELP|CONFIG|DATABASES|POOLS|CLIENTS|SERVERS|USERS|VERSION
SHOW FDS|SOCKETS|ACTIVE_SOCKETS|LISTS|MEM
SHOW DNS_HOSTS|DNS_ZONES
SHOW STATS|STATS_TOTALS|STATS_AVERAGES|TOTALS
SET key = arg
RELOAD
PAUSE [<db>]
RESUME [<db>]
DISABLE <db>
ENABLE <db>
RECONNECT [<db>]
KILL <db>
SUSPEND
SHUTDOWN