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Date:      Sun, 30 Nov 2003 23:27:55 +0100
From:      Melvyn Sopacua <freebsd-questions@webteckies.org>
To:        "'FreeBSD-questions'" <questions@FreeBSD.ORG>
Cc:        DG <david@fielden.com.au>
Subject:   Re: MySQL question...
Message-ID:  <200311302327.56533.freebsd-questions@webteckies.org>
In-Reply-To: <002b01c3b78c$f37a2a40$5401a8c0@borg.fielden.com.au>
References:  <002b01c3b78c$f37a2a40$5401a8c0@borg.fielden.com.au>

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On Sunday 30 November 2003 22:57, DG wrote:

> > -----Original Message-----
> > From: owner-freebsd-questions@freebsd.org
> > [mailto:owner-freebsd-questions@freebsd.org]On Behalf Of
> > Melvyn Sopacua
> > Sent: Monday, 1 December 2003 3:54 AM
> > To: FreeBSD-questions
> > Cc: Xpression
> > Subject: Re: MySQL question...
>
> <snip>
>
> > All databases will go under /var/db/mysql and the quick and
> > dirty answer is:
> > mysql -e "GRANT ALL ON $dbname.* TO '$dbuser'@'localhost'
> > IDENTIFIED BY
> > '$userpasswd'"
> >
> > --
> > Melvyn
>
> Something I've wondered is why the default location for the MySQL databasi
> is /var/db/mysql?  Yes /var/db seems to make sense, but most /var
> filesystems would be fairly small.

By tradition /var is for 'variable data'.
By tradition, /var has been used for mail and news and as such do not requi=
re=20
large partitions unless you run binary newsgroups. Therefore most /var=20
partitions are small.
However - I agree that the chosen default is not up-to-par with the use of=
=20
MySQL, especially since you would take smaller fragment size for a /var=20
partition if you have a busy mail- or newsserver and that certainly won't=20
benefit MySQL.

> Is it generally common practice to create a symbolic link to somewhere on,
> say, /usr to store the databasi?

If you know beforehand that you're going to run a mysql database with large=
=20
databases (or use innodb which will never shrink!), than it's wise to creat=
e=20
a large partition /var/db/mysql on boot.

Otherwise you can set the DB_DIR variable during installation of MySQL to=20
f.e.:
/usr/local/var/mysql

which is not unheard of. On my workstation I use /usr/db/mysql, but on my=20
workstation I also have a 15G /usr partition.

Whichever you choose, it's best to choose a DB_DIR ending in /mysql, so you=
=20
can always decide to add another disk and mount that as $DB_DIR.

By the way: don't underestimate the size of the binary logs, especially wit=
h=20
large inserts.

=2D-=20
Melvyn

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=46reeBSD sarevok.webteckies.org 5.2-BETA FreeBSD 5.2-BETA #1: Sat Nov 29=20
00:15:33 CET 2003     root@sarevok.webteckies.org:/usr/obj/usr/src/sys/
SAREVOK_NOFW_DBG  i386
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=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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