Re: multiple threads inserting into the same table

From: Brian Cox <brian(dot)cox(at)ca(dot)com>
To: "Scott Marlowe [scott(dot)marlowe(at)gmail(dot)com]" <scott(dot)marlowe(at)gmail(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: multiple threads inserting into the same table
Date: 2009-03-23 20:52:06
Message-ID: 49C7F676.1050604@ca.com
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Scott Marlowe [scott(dot)marlowe(at)gmail(dot)com] wrote:
> Might you have a firewall that's killing the connections? What does
> netstat -an on the client side say about these connections?
I don't think so: 1) app and postgres are on the same machine and 2)
this has been the set up for months and I don't think anyone has diddled
with the machine.

netstat -an | fgrep 5432 shows:

[root(at)rdl64xeoserv01 log]# netstat -an | fgrep 5432
tcp 0 0 0.0.0.0:5432 0.0.0.0:*
LISTEN
tcp 0 0 127.0.0.1:5432 127.0.0.1:35996
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:35999
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36017
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36019
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36018
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36005
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36001
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36013
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36008
ESTABLISHED
tcp 0 0 127.0.0.1:5432 127.0.0.1:36011
ESTABLISHED
tcp 0 0 130.200.163.80:5432 130.200.164.26:50481
ESTABLISHED
tcp 0 0 :::5432 :::*
LISTEN
tcp 0 0 ::ffff:127.0.0.1:36001 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36005 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36008 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36011 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36013 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36017 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36019 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:36018 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:35996 ::ffff:127.0.0.1:5432
ESTABLISHED
tcp 0 0 ::ffff:127.0.0.1:35999 ::ffff:127.0.0.1:5432
ESTABLISHED
unix 2 [ ACC ] STREAM LISTENING 2640437 /tmp/.s.PGSQL.5432

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