My guess is you are hitting an open file ulimit. Add ulimit -n 50000 to the start of whatever you use to start pgbouncer (init script, etc..)
On Thu, Jun 18, 2015 at 1:10 PM Sheena, Prabhjot < prabhjot.si...@classmates.com> wrote: > Guys > > I have an issue going on with PGBOUNCER which is slowing down the > site > > > > PGBOUNCER VERSION: pgbouncer-1.5.4-2.el6 (Hosted on separate machine) (16 > cpu) 98GB RAM > > DATABASE VERION: postgresql 9.3 > > > > When the total client connections to pgbouncer are close to 1000, site > application works fine but when the total client connections crosses 1150 > site application starts showing slowness. > > > > Here is an example of output > > > > postgres@symds-pg:~ $ netstat -atnp | grep 5432 | wc > > (Not all processes could be identified, non-owned process info > > will not be shown, you would have to be root to see it all.) > > *960* 6720 104640 > > > > > > As you can see total connections are like 960 right now my site > application is working fine. When connections crosses 1150 and even though > I see lot of available connections coz my default_pool_size is set high to > 250 but still the application gets slow. Database performance on the > other end is great with no slow running queries or anything. So the only > place I can think the issue is at PGBOUNCER end. > > > > pgbouncer=# show config; > > key | value | changeable > > ---------------------------+----------------------------------+------------ > > job_name | pgbouncer | no > > conffile | /etc/pgbouncer/pgbouncer.ini | yes > > logfile | /var/log/pgbouncer.log | yes > > pidfile | /var/run/pgbouncer/pgbouncer.pid | no > > listen_addr | * | no > > listen_port | 5432 | no > > listen_backlog | 128 | no > > unix_socket_dir | /tmp | no > > unix_socket_mode | 511 | no > > unix_socket_group | | no > > auth_type | md5 | yes > > auth_file | /etc/pgbouncer/userlist.txt | yes > > pool_mode | transaction | yes > > max_client_conn | 3000 | yes > > default_pool_size | 250 | yes > > min_pool_size | 0 | yes > > reserve_pool_size | 0 | yes > > reserve_pool_timeout | 5 | yes > > syslog | 0 | yes > > syslog_facility | daemon | yes > > syslog_ident | pgbouncer | yes > > user | | no > > autodb_idle_timeout | 3600 | yes > > server_reset_query | | yes > > server_check_query | select 1 | yes > > server_check_delay | 30 | yes > > query_timeout | 0 | yes > > query_wait_timeout | 0 | 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 | extra_float_digits | yes > > disable_pqexec | 0 | no > > dns_max_ttl | 15 | yes > > dns_zone_check_period | 0 | yes > > max_packet_size | 2147483647 | yes > > pkt_buf | 2048 | 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 | yes > > stats_users | stats, postgres | yes > > stats_period | 60 | yes > > log_connections | 1 | yes > > log_disconnections | 1 | yes > > log_pooler_errors | 1 | yes > > > > > > Thanks > > Prabhjot > > >
