Hi Yves,
You could also have changed the directory in the global /etc/my.cnf file
by setting
datadir=/path/to/mysql/data
This is pretty simple and works a lot easier than hacking the init
scripts.
Regards
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i n v e n t
---------------------------------------------------------------
-----Original Message-----
From: Yves Goergen [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 3 May 2006 8:01 PM
To: paul rivers
Cc: [email protected]
Subject: Re: How to move the MySQL data directory?
On 03.05.2006 01:21 (+0100), paul rivers wrote:
> Specify the data dir in the local my.cnf and be sure your instance
uses it
> by starting it with the --defaults-file parameter set to that
instance's
> local copy.
Okay, since hacking seems to be required anyway, I hacked it the
straight-forward and least-change way. I already had datadir=... changed
in the init script to the correct location. Now I also insert some
variables corrections in bin/mysqld_safe:
# here are the lines where ledir is set totally wrong...
MY_BASEDIR_VERSION=`pwd`
ledir=${MY_BASEDIR_VERSION}/bin
DATADIR=`pwd | sed -r "s;/usr/local/;/var/;"`/data
defaults="--defaults-file=${DATADIR}/my.cnf"
# user=... and so on
This does the job pretty well for MySQL 4.0. Need to do it with every
upgrade, but I think I can automate it.
MySQL 5.0 required a less invasive hack though. I saw that setting
datadir= in the proposed init script is for nothing at the very
beginning since it's overwritten again right below. So moving that line
further down helped. Then the mysqld_safe call in the 'start' section
required an additional parameter --defaults-file=$datadir/my.cnf to make
it read my socket name, IP & port etc.
Now both servers are up and running fine again, side by side, with the
*entire* data directory moved somewhere else, saving me from handling
that with every upgrade. Thanks for your help, I thought it could be
done an easy way but it seems nobody has thought about doing that
before. At least I don't have the impression, from reading the scripts.
--
Yves Goergen "LonelyPixel" <[EMAIL PROTECTED]>
http://beta.unclassified.de - My web laboratory.
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