Re: [GENERAL] How to find which query a waiting query waiting for?

2012-12-08 Thread wd
I know how to do this, thanks.


On Fri, Dec 7, 2012 at 11:09 PM, Fabrízio de Royes Mello <
fabriziome...@gmail.com> wrote:

>
> On Fri, Dec 7, 2012 at 1:02 PM, wd  wrote:
>
>> hi,
>>
>> From pg_stat_activity I can find a query is at waiting state, and from
>> pg_locks and pg_class can find which relation the query is waiting for, But
>> how to find witch query is lock the relation?
>>
>
> Maybe you found what you need here [1].
>
> [1] http://wiki.postgresql.org/wiki/Lock_Monitoring
>
> --
> Fabrízio de Royes Mello
> Consultoria/Coaching PostgreSQL
> >> Blog sobre TI: http://fabriziomello.blogspot.com
> >> Perfil Linkedin: http://br.linkedin.com/in/fabriziomello
> >> Twitter: http://twitter.com/fabriziomello
>
>


Re: [GENERAL] How to find which query a waiting query waiting for?

2012-12-07 Thread Fabrízio de Royes Mello
On Fri, Dec 7, 2012 at 1:02 PM, wd  wrote:

> hi,
>
> From pg_stat_activity I can find a query is at waiting state, and from
> pg_locks and pg_class can find which relation the query is waiting for, But
> how to find witch query is lock the relation?
>

Maybe you found what you need here [1].

[1] http://wiki.postgresql.org/wiki/Lock_Monitoring

-- 
Fabrízio de Royes Mello
Consultoria/Coaching PostgreSQL
>> Blog sobre TI: http://fabriziomello.blogspot.com
>> Perfil Linkedin: http://br.linkedin.com/in/fabriziomello
>> Twitter: http://twitter.com/fabriziomello


Re: [GENERAL] How to find which query a waiting query waiting for?

2012-12-07 Thread hubert depesz lubaczewski
On Fri, Dec 07, 2012 at 11:02:33PM +0800, wd wrote:
> From pg_stat_activity I can find a query is at waiting state, and from
> pg_locks and pg_class can find which relation the query is waiting for, But
> how to find witch query is lock the relation?

sipmply check which query has lock on the relation/transaction what your
query is waiting for.

Best regards,

depesz

-- 
The best thing about modern society is how easy it is to avoid contact with it.
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[GENERAL] How to find which query a waiting query waiting for?

2012-12-07 Thread wd
hi,

>From pg_stat_activity I can find a query is at waiting state, and from
pg_locks and pg_class can find which relation the query is waiting for, But
how to find witch query is lock the relation?