From: Joshua D. Drake <jd@commandprompt.com>
To: smiley2211 <smiley2211@yahoo.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: How to ENABLE SQL capturing???
Date: Fri, 10 Aug 2007 14:50:34 -0700
Message-ID: <46BCDDAA.3060703@commandprompt.com> (raw)
In-Reply-To: <12099590.post@talk.nabble.com>
References: <12060736.post@talk.nabble.com>
<20070808203612.GA26143@uio.no>
<bd8531800708081357i4f14b41axb0f19e444dc47a6e@mail.gmail.com>
<12096180.post@talk.nabble.com>
<Pine.LNX.4.64.0708101309230.1940@discord.home.frostconsultingllc.com>
<12099590.post@talk.nabble.com>
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smiley2211 wrote:
> Jeff,
>
> You are CORRECT...my queries were going to /var/log/messages...had to get
> the Linux Admin to grant me READ access to the file...
You may want to actually get that to stop. Syslog is a notorious
performance bottleneck for postgresql.
>
> Thanks for your reply.
> Michelle.
>
>
> Jeff Frost wrote:
>> Michelle,
>>
>> What platform are you on? If you're on linux, than logging to syslog will
>> likely show up in the /var/log/messages file.
>>
>> On Fri, 10 Aug 2007, smiley2211 wrote:
>>
>>> Hello all,
>>>
>>> I have ENABLED this 'log_min_duration_statement = 100" but I can't figure
>>> out WHERE it's writing the commands to ...I have it set to 'syslogs' but
>>> this file is 0 bytes :confused:
>>>
>>> Should I set other parameters in my postgresql.conf file???
>>>
>>> Thanks...Michelle
>>>
>>>
>>> Bryan Murphy-3 wrote:
>>>> we currently have logging enabled for all queries over 100ms, and keep
>>>> the last 24 hours of logs before we rotate them. I've found this tool
>>>> very helpful in diagnosing new performance problems that crop up:
>>>>
>>>> http://pgfouine.projects.postgresql.org/
>>>>
>>>> Bryan
>>>>
>>>> On 8/8/07, Steinar H. Gunderson <sgunderson@bigfoot.com> wrote:
>>>>> On Wed, Aug 08, 2007 at 01:02:24PM -0700, smiley2211 wrote:
>>>>>> I am trying to enable capturing of the submitted code via an
>>>>>> application...how do I do this in Postgres? Performance is SLOW on my
>>>>>> server and I have autovacuum enabled as well as rebuilt
>>>>> indexes...whatelse
>>>>>> should be looked at?
>>>>> Try "log_min_duration_statement = 100" in postgresql.conf; it will show
>>>>> all
>>>>> statements that take more than 100ms. Set to 0 to log _all_ statements,
>>>>> or
>>>>> -1 to turn the logging back off.
>>>>>
>>>>> /* Steinar */
>>>>> --
>>>>> Homepage: http://www.sesse.net/
>>>>>
>>>>> ---------------------------(end of
>>>>> broadcast)---------------------------
>>>>> TIP 6: explain analyze is your friend
>>>>>
>>>> ---------------------------(end of broadcast)---------------------------
>>>> TIP 3: Have you checked our extensive FAQ?
>>>>
>>>> http://www.postgresql.org/docs/faq
>>>>
>>>>
>>>
>> --
>> Jeff Frost, Owner <jeff@frostconsultingllc.com>
>> Frost Consulting, LLC http://www.frostconsultingllc.com/
>> Phone: 650-780-7908 FAX: 650-649-1954
>>
>> ---------------------------(end of broadcast)---------------------------
>> TIP 9: In versions below 8.0, the planner will ignore your desire to
>> choose an index scan if your joining column's datatypes do not
>> match
>>
>>
>
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To: pgsql-performance@postgresql.org
Cc: jd@commandprompt.com, smiley2211@yahoo.com
Subject: Re: How to ENABLE SQL capturing???
In-Reply-To: <46BCDDAA.3060703@commandprompt.com>
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