Thread: How to determine database activity???

How to determine database activity???

From
Joost Kraaijeveld
Date:
Hi,

Is there a way to actually determine if the database is doing anything
after a query is send to the backend during *long* lasting queries
besides waiting and hoping?


--
Groeten,

Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl



Re: How to determine database activity???

From
Peter Eisentraut
Date:
Joost Kraaijeveld wrote:
> Is there a way to actually determine if the database is doing
> anything after a query is send to the backend during *long* lasting
> queries besides waiting and hoping?

strace or ltrace will give you an idea, but I think you will find that
the answer is usually "yes" and you just have to be patient. :)

--
Peter Eisentraut
http://developer.postgresql.org/~petere/

Re: How to determine database activity???

From
adey
Date:
Try this query that displays current activity:-
 
select  datid,
 datname as "DB Name",
 substr(procpid,1,6) as "Procpid",
 substr(usesysid,1,5) AS "UseSysid",
 usename,
 current_query as SQL,
 query_start
from
 pg_stat_activity
order by
 procpid
 
You may need to turn on some of the parameters in postgresql.conf to populate some of the returned columns in the table (view?).

 
On 10/30/05, Joost Kraaijeveld <J.Kraaijeveld@askesis.nl> wrote:
Hi,

Is there a way to actually determine if the database is doing anything
after a query is send to the backend during *long* lasting queries
besides waiting and hoping?


--
Groeten,

Joost Kraaijeveld
Askesis B.V.
Molukkenstraat 14
6524NB Nijmegen
tel: 024-3888063 / 06-51855277
fax: 024-3608416
e-mail: J.Kraaijeveld@Askesis.nl
web: www.askesis.nl



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