asked on

starting mysql service

hello there,
my centos v5.6 server came already with mysql service installed but it was installed by rpm and its version 5.1.58.
I have downloaded the latest source code which is 5.5.16 and installed this version located in /opt
now I have stopped mysql and started the new version like this
/opt/mysql5516/etc/mysql.server start

but if I stop and start the service like this (service mysql start) then the old one starts

how can I update this information and also this one.

[(05:22 PM)][(root@alpha)] [(/opt)] $ chkconfig --list mysql
mysql 0:off 1:off 2:on 3:on 4:on 5:on 6:off

so the right mysql start after reboot..

Randy Downs

Check your config file - /etc/my.cnf

http://articles.slicehost.com/2011/3/10/configuring-mysql-server-on-centos

Papertrip

If you aren't going to use the old version, uninstall it.

yum erase mysql-server

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rpm -e mysql-server

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Then if you want your version of mysql to be managed by chkconfig, check out the manpage for what is required (start/kill for each runlevel for example) and write a script to start your new version. You should be able to accomplish that by referencing start up scripts that are currently managed by chkconfig.

XK8ER

ASKER

any way I can setup the new service like
"service mysqld start" for the new mysql and
"service mysql start" for the old one?

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Papertrip

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XK8ER

ASKER

okay, this is what I did.. is this right?

-(01:45 58 PM)-(root@alpha)-(/etc/init.d) $ service mysql stop
Shutting down MySQL....

cp /opt/mysql5516/etc/mysql.server /etc/init.d/mysqld

-(01:46 20 PM)-(root@alpha)-(/etc/init.d) $ service mysqld start
Starting MySQL...

-(01:48 32 PM)-(root@alpha)-(/etc/init.d) $ chkconfig mysql off
-(01:48 02 PM)-(root@alpha)-(/etc/init.d) $ chkconfig --list mysqld
service mysqld supports chkconfig, but is not referenced in any runlevel (run 'chkconfig --add mysqld')
-(01:48 03 PM)-(root@alpha)-(/etc/init.d) $ chkconfig --add mysqld
-(01:48 19 PM)-(root@alpha)-(/etc/init.d) $ chkconfig mysqld on
-(01:48 36 PM)-(root@alpha)-(/etc/init.d) $ chkconfig --list mysqld
mysqld 0:off 1:off 2:on 3:on 4:on 5:on 6:off

Papertrip

Without knowing the contents of your new init script, I can't tell for sure, but all the commands look correct.

When you run 'service mysqld start' does it start the proper version now?