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Re: Sudden Query slowdown on our Postgresql Server

From: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
To: Sebastian Melchior <webmaster(at)mailz(dot)de>
Cc: Stephen Frost <sfrost(at)snowman(dot)net>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Sudden Query slowdown on our Postgresql Server
Date: 2012-03-23 04:48:12
Message-ID: CAOR=d=3t1fqsV2pFrcfERAxpBfkig6DLAmmvq1aVhKfdh=MciQ@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-performance
I'd suggest the handy troubleshooting tools sar, iostat, vmstat and iotop

On Thu, Mar 22, 2012 at 10:37 PM, Sebastian Melchior <webmaster(at)mailz(dot)de> wrote:
> Hi,
>
> yeah we log those, those times do not match the times of the slowdown at all. Seems to be unrelated.
>
> Sebastian
>
>
> On 23.03.2012, at 01:47, Stephen Frost wrote:
>
>> * Sebastian Melchior (webmaster(at)mailz(dot)de) wrote:
>>> Does anyone have any idea what could cause this issue or how we can further debug it?
>>
>> Are you logging checkpoints?  If not, you should, if so, then see if
>> they correllate to the time of the slowdown..?
>>
>>       Thanks,
>>
>>               Stephen
>
>
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