Re: dangling connections - Mailing list pgsql-admin
| From | Daryl Stultz |
|---|---|
| Subject | Re: dangling connections |
| Date | |
| Msg-id | CANYnOKSk0MS2zNW45tKMvKMEBa-HdQp9nG0S25PVDLznaEhrDg@mail.gmail.com Whole thread Raw |
| In response to | Re: dangling connections (Daryl Stultz <daryl.stultz@opentempo.com>) |
| Responses |
Re: dangling connections
|
| List | pgsql-admin |
On Tue, May 15, 2012 at 3:31 AM, Sergey Konoplev <gray.ru@gmail.com> wrote:select client_addr, client_port from pg_stat_activity;
after shutting down the Tomcat and find out what holds the <client_port> on
the <client_addr>
[user@<client_addr> ~]$ sudo netstat -pnao | grep <client_port>
The second column from the right will be the process pid.
My system is running fine at present, but I thought I'd just mess with the above. Oddly, it seems Tomcat is holding 56 connections while PG is holding only 51.
netstat -pnao | grep 5432 | sort | head
Tomcat server
tcp 0 0 ::ffff:172.16.103.122:33440 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33441 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33442 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33443 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33444 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33775 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:33776 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:35117 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:35118 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
tcp 0 0 ::ffff:172.16.103.122:35119 ::ffff:172.16.101.157:5432 ESTABLISHED 14423/java off (0.00/0/0)
Postgresql server
tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN 5666/postmaster off (0.00/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:33775 ESTABLISHED 17410/postgres: otr keepalive (4815.62/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:33776 ESTABLISHED 17411/postgres: otr keepalive (4815.63/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35117 ESTABLISHED 16921/postgres: pos keepalive (2277.28/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35118 ESTABLISHED 16922/postgres: pos keepalive (2277.29/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35119 ESTABLISHED 16923/postgres: otr keepalive (2280.08/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35120 ESTABLISHED 16926/postgres: pos keepalive (2290.73/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35121 ESTABLISHED 16927/postgres: pos keepalive (2290.73/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35122 ESTABLISHED 16928/postgres: pos keepalive (2290.74/0/0)
tcp 0 0 172.16.101.157:5432 172.16.103.122:35123 ESTABLISHED 16929/postgres: pos keepalive (2290.74/0/0)
Note the bolded ports missing from the PG side. This is the opposite of the condition I originally presented. Anyone have an explanation for this?
Daryl Stultz
_____________________________________
6 Degrees Software and Consulting, Inc.
http://www.6degrees.com
http://www.opentempo.com
mailto:daryl.stultz@opentempo.com
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