...
$dsn = "host=127.0.0.1 port=6432 dbname=postgres user=postgres password=***"; // 1. так работает
$dsn = "host=/var/run/pgbouncer port=6432 dbname=postgres user=postgres password=***"; // 2. не работает

$conn = pg_connect($dsn);
//-------------------------------------------------------------------------------------------------------------------------------------------
$t02 = (microtime(true) - $start_time)*1000;

if ($d00 !== 'upd') {

$in1 = pg_query($conn, "INSERT INTO public.v1_bouncer (metka) VALUES ('".$d00."') RETURNING idv1;");
$t03 = (microtime(true) - $start_time)*1000;
$rid = pg_fetch_row($in1);
$t22 = $t02-$t01;
$in2 = pg_query($conn, "INSERT INTO public.v2_timing (fk_idv1, t01, t02, t03) VALUES ($rid[0],$t01,$t22,$t03-$t02);");
$t04 = (microtime(true) - $start_time)*1000;
$tt = $t04-$t03;
echo '{"0":"'.$d00.'", "1":"'.$tt.'", "2":"'.$rid[0].'", "3":"'.$t22.'"}';
//-------------------------------------------------------------------------------------------------------------------------------------------
...

- - -

[databases]
postgres=host=127.0.0.1 port=5432 dbname=postgres user=postgres password=***

- - -

[]# ls -la /var/run/postgresql/
итого 4
drwxr-xr-x 2 postgres postgres 80 мая 20 11:32 .
drwxr-xr-x 48 root root 1380 мая 20 11:34 ..
srwxrwxrwx 1 postgres postgres 0 мая 20 17:20 .s.PGSQL.5432
-rw------- 1 postgres postgres 64 мая 20 17:20 .s.PGSQL.5432.lock
[]#

---------------------------+--------------------------------------------------------+------------
job_name | pgbouncer | no
conffile | /etc/pgbouncer/pgbouncer.ini | yes
logfile | /var/log/pgbouncer/pgbouncer.log | yes
pidfile | /var/run/pgbouncer/pgbouncer.pid | no
listen_addr | 127.0.0.1 | no
listen_port | 6432 | no
so_reuseport | 0 | no
listen_backlog | 128 | no
unix_socket_dir | /var/run/pgbouncer | no
unix_socket_mode | 511 | no
unix_socket_group | | no
auth_type | plain | yes
auth_file | /etc/pgbouncer/userlist.txt | yes
auth_hba_file | | yes
auth_user | | yes
auth_query | SELECT usename, passwd FROM pg_shadow WHERE usename=$1 | yes
pool_mode | transaction | yes
max_client_conn | 100 | yes
default_pool_size | 20 | yes
min_pool_size | 0 | yes
reserve_pool_size | 0 | yes
reserve_pool_timeout | 5 | yes
max_db_connections | 0 | yes
max_user_connections | 0 | yes
syslog | 0 | yes
syslog_facility | daemon | yes
syslog_ident | pgbouncer | yes
user | | no
autodb_idle_timeout | 3600 | yes
server_reset_query | DISCARD ALL | yes
server_reset_query_always | 0 | yes
server_check_query | select 1 | yes
server_check_delay | 30 | yes
server_fast_close | 0 | yes
query_timeout | 0 | yes
query_wait_timeout | 120 | yes
client_idle_timeout | 0 | yes
client_login_timeout | 60 | yes
idle_transaction_timeout | 0 | yes
server_lifetime | 3600 | yes
server_idle_timeout | 600 | yes
server_connect_timeout | 15 | yes
server_login_retry | 15 | yes
server_round_robin | 0 | yes
suspend_timeout | 10 | yes
ignore_startup_parameters | | yes
disable_pqexec | 0 | no
dns_max_ttl | 15 | yes
dns_nxdomain_ttl | 15 | yes
dns_zone_check_period | 0 | yes
resolv_conf | | no
max_packet_size | 2147483647 | yes
pkt_buf | 4096 | no
sbuf_loopcnt | 5 | yes
tcp_defer_accept | 1 | yes
tcp_socket_buffer | 0 | yes
tcp_keepalive | 1 | yes
tcp_keepcnt | 0 | yes
tcp_keepidle | 0 | yes
tcp_keepintvl | 0 | yes
verbose | 0 | yes
admin_users | postgres, eax | yes
stats_users | postgres | yes
stats_period | 60 | yes
log_stats | 1 | yes
log_connections | 1 | yes
log_disconnections | 1 | yes
log_pooler_errors | 1 | yes
application_name_add_host | 0 | yes
client_tls_sslmode | disable | no
client_tls_ca_file | | no
client_tls_cert_file | | no
client_tls_key_file | | no
client_tls_protocols | all | no
client_tls_ciphers | fast | no
client_tls_dheparams | auto | no
client_tls_ecdhcurve | auto | no
server_tls_sslmode | disable | no
server_tls_ca_file | | no
server_tls_cert_file | | no
server_tls_key_file | | no
server_tls_protocols | all | no
server_tls_ciphers | fast | no
- - -