Skip site navigation (1) Skip section navigation (2)

Re: postgres seems to ignore log_min_duration_statement

From: Guillaume Lelarge <guillaume(at)lelarge(dot)info>
To: "Martin A(dot) Brooks" <martin(at)antibodymx(dot)net>
Cc: pgsql-admin(at)postgresql(dot)org
Subject: Re: postgres seems to ignore log_min_duration_statement
Date: 2008-10-14 10:14:34
Message-ID: 48F4710A.1030609@lelarge.info (view raw or flat)
Thread:
Lists: pgsql-admin
Martin A. Brooks a écrit :
> Hi
> 
> I want to have postgres log sql statements that take longer than 5
> seconds to execute.  In postgresql.conf I have set
> log_min_duration_statement as follows:
> 
> root(at)martin-desktop:/etc/postgresql/8.3/main# grep log_min_duration
> postgresql.conf
> log_min_duration_statement = 5000       # -1 is disabled, 0 logs all
> statements
> 
> However, in the log files, I'm seeing entries for all SQL executed, not
> just that taking 5000ms or more. For example:
> 
> 2008-10-14 10:15:50 BST PID:20349 DB:vhdb LOG:  statement: select * from
> vendors;
> 2008-10-14 10:15:50 BST PID:20349 DB:vhdb LOG:  duration: 0.259 ms
> 2008-10-14 10:15:50 BST PID:20349 DB:vhdb LOG:  QUERY STATISTICS
> 2008-10-14 10:15:50 BST PID:20349 DB:vhdb DETAIL:  ! system usage stats:
>        !       0.000281 elapsed 0.000000 user 0.000000 system sec
>        !       [0.004000 user 0.004000 sys total]
>        !       0/0 [0/176] filesystem blocks in/out
>        !       0/0 [0/923] page faults/reclaims, 0 [0] swaps
>        !       0 [0] signals rcvd, 0/0 [0/0] messages rcvd/sent
>        !       0/0 [8/0] voluntary/involuntary context switches
>        ! buffer usage stats:
>        !       Shared blocks:          0 read,          0 written,
> buffer hit rate = 100.00%
>        !       Local  blocks:          0 read,          0 written,
> buffer hit rate = 0.00%
>        !       Direct blocks:          0 read,          0 written
> 

This last log is enabled with the log_statement_stats parameter. Set it
to off to disable it.


-- 
Guillaume.
 http://www.postgresqlfr.org
 http://dalibo.com

In response to

Responses

pgsql-admin by date

Next:From: Martin A. BrooksDate: 2008-10-14 10:30:35
Subject: Re: postgres seems to ignore log_min_duration_statement
Previous:From: Martin A. BrooksDate: 2008-10-14 09:23:32
Subject: postgres seems to ignore log_min_duration_statement

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group