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* dblink_connect is slow
@ 2010-04-02 07:48 scheu dba <scheu.postgresql@gmail.com>
2010-04-06 20:59 ` Re: dblink_connect is slow Kevin Grittner <Kevin.Grittner@wicourts.gov>
0 siblings, 1 reply; 2+ messages in thread
From: scheu dba @ 2010-04-02 07:48 UTC (permalink / raw)
To: pgsql-admin
Hi
Using Postgresql 8.2 on Linux, I am trying to use dblink contrib to connect
to a remote Postresql 8.2 database. I am using the following SQL :
select dblink_connect('host=remote_server port=5432 dbname=remote_bdd
user=remote_user password=remote_pwd');
The problem is :
- when remote_server entry exists in /etc/hosts file, the connexionis
immediate
- but when remote_server entry does not exists in /etc/hosts file, the
connexion take 1 minute
However, even if remote_server entry does not exists in /etc/hosts file, I
can ping immediately the remote_server and a remote psql connexion (using
"psql -h remote_server -d remote_bdd") is also immediate, so I don't think
that my network or DNS server could be the problem
Is the something particular with dblink_connect function that could explain
that a remote connexion is so long ?
Thank you by advance fore your help
Jeff
^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: dblink_connect is slow
2010-04-02 07:48 dblink_connect is slow scheu dba <scheu.postgresql@gmail.com>
@ 2010-04-06 20:59 ` Kevin Grittner <Kevin.Grittner@wicourts.gov>
0 siblings, 0 replies; 2+ messages in thread
From: Kevin Grittner @ 2010-04-06 20:59 UTC (permalink / raw)
To: scheu dba <scheu.postgresql@gmail.com>; pgsql-admin
scheu dba <scheu.postgresql@gmail.com> wrote:
> - when remote_server entry exists in /etc/hosts file, the
> connexionis immediate
> - but when remote_server entry does not exists in /etc/hosts file,
> the connexion take 1 minute
You might want to check that the server has a reverse DNS entry (to
map the IP address back to a server name).
-Kevin
^ permalink raw reply [nested|flat] 2+ messages in thread
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