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* PGSQL-IDLE connection problem
@ 2013-01-28 09:12 Sathish Reddy Yelala <sathishy040@gmail.com>
0 siblings, 1 reply; 4+ messages in thread
From: Sathish Reddy Yelala @ 2013-01-28 09:12 UTC (permalink / raw)
To: pgsql-admin
Hi,
we had problem with <IDLE> connections.when we start the database there
huge number of connections goes to <IDLE> which leads to database access
slow.
How can we prevent the <IDLE> connections and also where we can see the
<IDLE> connection query so that we can identify.
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: PGSQL-IDLE connection problem
@ 2013-01-29 11:32 Flavio Henrique Araque Gurgel <flavio@4linux.com.br>
parent: Sathish Reddy Yelala <sathishy040@gmail.com>
0 siblings, 1 reply; 4+ messages in thread
From: Flavio Henrique Araque Gurgel @ 2013-01-29 11:32 UTC (permalink / raw)
To: Sathish Reddy Yelala <sathishy040@gmail.com>; +Cc: pgsql-admin
Em 28-01-2013 07:12, Sathish Reddy Yelala escreveu:
> Hi,
>
> we had problem with <IDLE> connections.when we start the database
> there huge number of connections goes to <IDLE> which leads to database
> access slow.
These connections are opened by your client application, not by PostgreSQL.
> How can we prevent the <IDLE> connections and also where we can see
> the <IDLE> connection query so that we can identify.
You should consider looking at your application and how it handles the
connections it opens. What kind of application you have, distributed
clients or application server?
There's nothing to see about connections in <IDLE> state. They are doing
nothing, there's no query or transaction. They are just open connections.
Consider looking at the view pg_stat_activity. There you can see
username, IP and other things about these connections.
Regards,
__________________________________
Flavio Henrique A. Gurgel
Líder de Projetos Especiais
Consultoria, Projetos & Treinamentos 4LINUX
Tel1: +55-11.2125-4747 ou 2125-4748
www.4linux.com.br
email: flavio@4linux.com.br
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^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: PGSQL-IDLE connection problem
@ 2013-01-30 07:01 Sathish Reddy Yelala <sathishy040@gmail.com>
parent: Flavio Henrique Araque Gurgel <flavio@4linux.com.br>
0 siblings, 1 reply; 4+ messages in thread
From: Sathish Reddy Yelala @ 2013-01-30 07:01 UTC (permalink / raw)
To: Flavio Henrique Araque Gurgel <flavio@4linux.com.br>; +Cc: pgsql-admin
hi,
Thanks for the response.Here I have few more queries regarding
Connections.
1.When the connection goes to <IDLE> state
2. when the <IDLE> connection becomes active
3.Is there any chance to database get slow because of <IDLE> connections
Any help would be appreciated..........
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: PGSQL-IDLE connection problem
@ 2013-01-30 08:08 Albe Laurenz <laurenz.albe@wien.gv.at>
parent: Sathish Reddy Yelala <sathishy040@gmail.com>
0 siblings, 0 replies; 4+ messages in thread
From: Albe Laurenz @ 2013-01-30 08:08 UTC (permalink / raw)
To: Sathish Reddy Yelala *EXTERN* <sathishy040@gmail.com>; Flavio Henrique Araque Gurgel <flavio@4linux.com.br>; +Cc: pgsql-admin
Sathish Reddy Yelala wrote:
> Thanks for the response.Here I have few more queries regarding Connections.
>
> 1.When the connection goes to <IDLE> state
When the server has completed a request and waits for
the next one.
> 2. when the <IDLE> connection becomes active
When the server receives the next request from the client.
> 3.Is there any chance to database get slow because of <IDLE> connections
It's unlikely, but not impossible, if the idle connections
hog enough system resources to affect the server.
Also a very large value for max_connections might affect
performance of some internal data structures
(see http://wiki.postgresql.org/wiki/Number_Of_Database_Connections).
However, idle connections are not the first place where I would
look for the cause of a performance problem.
Connections "idle in transaction" are more likely to cause trouble.
How big is max_connections?
Yours,
Laurenz Albe
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-- links below jump to the message on this page --
2013-01-28 09:12 PGSQL-IDLE connection problem Sathish Reddy Yelala <sathishy040@gmail.com>
2013-01-29 11:32 ` Flavio Henrique Araque Gurgel <flavio@4linux.com.br>
2013-01-30 07:01 ` Sathish Reddy Yelala <sathishy040@gmail.com>
2013-01-30 08:08 ` Albe Laurenz <laurenz.albe@wien.gv.at>
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