Re: How to reduce writing on disk ? (90 gb on pgsql_tmp)

From: "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>
To: "ben(dot)play" <benjamin(dot)cohen(at)playrion(dot)com>
Cc: "pgsql-performance(at)postgresql(dot)org" <pgsql-performance(at)postgresql(dot)org>
Subject: Re: How to reduce writing on disk ? (90 gb on pgsql_tmp)
Date: 2015-06-03 12:44:23
Message-ID: CAKFQuwa=+MS6g_FhjktHwgsnrD2MYGkZ33LV2M4xmya=FGWCkg@mail.gmail.com
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On Wednesday, June 3, 2015, ben.play <benjamin(dot)cohen(at)playrion(dot)com> wrote:

> Hi all,
>
> We have a big database (more than 300 Gb) and we run a lot of queries each
> minute.
>
> However, once an hour, the (very complex) query writes A LOT on the disk
> (more than 95 Gb !!!)
> We have 64 Gb of RAM and this is our config :
>
>
> And my error on the query is :
>
>
> Do you know how to solve this problem ?
>
> Best regards,
> Benjamin.
>
>
>
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