From: Dinesh Chandra 12108 <Dinesh.Chandra@cyient.com>
To: Mark Kirkwood <mark.kirkwood@catalyst.net.nz>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Size of Temporary tablespace is increasing very much in postgresql 9.1.
Date: Mon, 19 Dec 2016 09:19:18 +0000
Message-ID: <62944b5c5ba94d10a76639956c1c548f@cyient.com> (raw)
In-Reply-To: <677ae7cf-d349-fe9d-a810-ba75f9885c44@catalyst.net.nz>
References: <8e77559fe4f74e469c9079b098c42aca@cyient.com>
<677ae7cf-d349-fe9d-a810-ba75f9885c44@catalyst.net.nz>
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Dear Mark,
Thanks for your valuable comment.
Now problem is resolved.
Regards,
Dinesh Chandra
|Database administrator (Oracle/PostgreSQL)| Cyient Ltd. Noida.
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Mobile: +91-9953975849 | Ext 1078 |dinesh.chandra@cyient.com
Plot No. 7, NSEZ, Phase-II ,Noida-Dadri Road, Noida - 201 305,India.
-----Original Message-----
From: Mark Kirkwood [mailto:mark.kirkwood@catalyst.net.nz]
Sent: 17 December, 2016 7:28 AM
To: Dinesh Chandra 12108 <Dinesh.Chandra@cyient.com>; pgsql-performance@postgresql.org
Subject: Re: [PERFORM] Size of Temporary tablespace is increasing very much in postgresql 9.1.
On 15/12/16 23:28, Dinesh Chandra 12108 wrote:
> Dear expert,
>
> In postgreSQL-9.1,the size of *pgsql_tmp* inside tablespace (Temp
> tablespace) is increased by 544G in one day.
>
> However, the DBsize is as usual but tablespace size is getting increased.
>
> Could you please suggest why it is happening ?
>
>
That is due to queries doing sorts or (hash) joins. You can log which queries are doing this with the log_temp_files parameter.
Now it might be that this is just normal/expected (e.g complex data warehouse style workload), but it could also be many small queries that might benefit from some additional indexes (logging the queries will help you decide what if anything needs to be done).
regards
Mark
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Cc: Dinesh.Chandra@cyient.com, mark.kirkwood@catalyst.net.nz
Subject: Re: Size of Temporary tablespace is increasing very much in postgresql 9.1.
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