Re: 15,000 tables

From: "Gavin M(dot) Roy" <gmr(at)ehpg(dot)net>
To: "Gavin M(dot) Roy" <gmr(at)ehpg(dot)net>
Cc: Tino Wildenhain <tino(at)wildenhain(dot)de>, Michael Riess <mlriess(at)gmx(dot)de>, pgsql-performance(at)postgresql(dot)org
Subject: Re: 15,000 tables
Date: 2005-12-01 19:08:59
Message-ID: 09C886D5-E700-4B27-8266-BDDC1853C0B3@ehpg.net
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Heh looks like I left a trailing thought...

My post wasn't saying don't use journaled filesystems, but rather
that it can be slower than non-journaled filesystems, and I don't
consider recovery time from a crash to be a factor in determining the
speed of reads and writes on the data. That being said, I think
Tom's reply on what to journal and not to journal should really put
an end to this side of the conversation.

Gavin

On Dec 1, 2005, at 10:49 AM, Gavin M. Roy wrote:

> Here's a fairly recent post on reiserfs (and performance):
>
> http://archives.postgresql.org/pgsql-novice/2005-09/msg00007.php
>
> I'm still digging on performance of ext2 vrs journaled filesystems,
> as I know I've seen it before.
>
> Gavin
>
>
> My point was not in doing an fsck, but rather in
> On Dec 1, 2005, at 10:40 AM, Tino Wildenhain wrote:
>
>> Am Donnerstag, den 01.12.2005, 10:07 -0800 schrieb Gavin M. Roy:
>>> Hi Michael,
>>>
>>> I'm a fan of ReiserFS, and I can be wrong, but I believe using a
>>> journaling filesystem for the PgSQL database could be slowing things
>>> down.
>>
>> Have a 200G+ database, someone pulling the power plug
>> or a regular reboot after a year or so.
>>
>> Wait for the fsck to finish.
>>
>> Now think again :-)
>>
>> ++Tino
>>
>
> Gavin M. Roy
> 800 Pound Gorilla
> gmr(at)ehpg(dot)net
>
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 5: don't forget to increase your free space map settings

Gavin M. Roy
800 Pound Gorilla
gmr(at)ehpg(dot)net

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