Scott Marlowe [scott.marl...@gmail.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:

[r...@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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