标签：mariadb
用mariadb官方源下载mariadb。
[root@business-backup ~]# vim /etc/yum.repos.d/mariadb.repo [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/10.2/centos7-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1
然是用yum下载mariadb：
yum install MariaDB-server MariaDB-client -y
2.创建需要使用的data目录。我在这边创建了两个，一个用于3306端口，一个用于3307.
mkdir /data/newoa/data -pv mkdir /data/travel/data/ -pv chown -R mysql:mysql /data/
3.初始化两个数据库：
mysqld --initialize-insecure --datadir=/data/newoa/data --user=mysql mysqld --initialize-insecure --datadir=/data/travel/data/ --user=mysql
4.初始化后再启动，启动成功后连接数据库并修改root@localhost用户的密码，然后退出。
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘123456‘;
5.修改两个配置文件，处理的newoa以及travel目录是自己创建：
[root@business-backup ~]# vim /etc/my.cnf.d/newoa/my.cnf [mysqld] port=3306 datadir=/data/newoa/data socket=/data/newoa/data/mysql.sock server_id=201 log-bin=mysql-bin binlog_format=mixed relay-log = relay-bin user=mysql [mysqld_safe] log-error=/data/newoa/data/mysqld.log pid-file=/data/newoa/data/mysqld.pid [root@business-backup ~]# vim /etc/my.cnf.d/travel/my.cnf [mysqld] port=3307 datadir=/data/travel/data socket=/data/travel/data/mysql.sock server_id=207 log-bin=mysql-bin binlog_format=mixed relay-log = relay-bin user=mysql [mysqld_safe] log-error=/data/travel/data/mysqld.log pid-file=/data/travel/data/mysqld.pid
6.创建启动脚本。
以下是3306实例的管理脚本/etc/init.d/mysqld3306，内容修改自原有管理脚本/etc/init.d/mysqld。由于我是yum安装的，所以mysql的basedir为/usr，如果是编译安装或通用二进制安装，则对应修改下面脚本中的basedir变量。将此管理脚本复制为/etc/init.d/mysqld3307，再修改下port=3307即可作为3307实例的服务管理脚本。$datadir以及cnf的路径做修改。
[root@business-backup ~]# vim /etc/init.d/mysqld3306
#!/bin/sh
#
# mysqld This shell script takes care of starting and stopping
# the MySQL subsystem (mysqld).
#
# chkconfig: 345 64 36
# description: MySQL database server.
# processname: mysqld
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
basedir=/usr
exec="$basedir/bin/mysqld_safe"
prog="mysqld"
port=3306
datadir="/data/newoa/data"
socketfile="$datadir/mysql.sock"
errlogfile="$datadir/mysqld.log"
mypidfile="$datadir/mysqld.pid"
cnf="/etc/my.cnf.d/newoa/my.cnf"
# Set timeouts here so they can be overridden from /etc/sysconfig/mysqld
STARTTIMEOUT=120
STOPTIMEOUT=60
# Set in /etc/sysconfig/mysqld, will be passed to mysqld_safe
MYSQLD_OPTS=
[ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog
lockfile=/var/lock/subsys/$prog
case $socketfile in
/*) adminsocket="$socketfile" ;;
*) adminsocket="$datadir/$socketfile" ;;
esac
start(){
[ -x $exec ] || exit 5
# check to see if it‘s already running
RESPONSE=$(/usr/bin/mysqladmin --no-defaults --socket="$adminsocket" --user=UNKNOWN_MYSQL_USER ping 2>&1)
if [ $? = 0 ]; then
# already running, do nothing
action $"Starting $prog: " /bin/true
ret=0
elif echo "$RESPONSE" | grep -q "Access denied for user"
then
# already running, do nothing
action $"Starting $prog: " /bin/true
ret=0
else
# Now start service
$exec $MYSQLD_OPTS --defaults-file="$cnf" --datadir="$datadir" --socket="$socketfile" --pid-file="$mypidfile" --basedir="$basedir" --user=mysql >/dev/null &
safe_pid=$!
# Spin for a maximum of N seconds waiting for the server to come up;
# exit the loop immediately if mysqld_safe process disappears.
# Rather than assuming we know a valid username, accept an "access
# denied" response as meaning the server is functioning.
ret=0
TIMEOUT="$STARTTIMEOUT"
while [ $TIMEOUT -gt 0 ]; do
RESPONSE=$(/usr/bin/mysqladmin --no-defaults --socket="$adminsocket" --user=UNKNOWN_MYSQL_USER ping 2>&1) && break
echo "$RESPONSE" | grep -q "Access denied for user" && break
if ! /bin/kill -0 $safe_pid 2>/dev/null; then
echo "MySQL Daemon failed to start."
ret=1
break
fi
sleep 1
let TIMEOUT=${TIMEOUT}-1
done
if [ $TIMEOUT -eq 0 ]; then
echo "Timeout error occurred trying to start MySQL Daemon."
ret=1
fi
if [ $ret -eq 0 ]; then
action $"Starting $prog: " /bin/true
touch $lockfile
else
action $"Starting $prog: " /bin/false
fi
fi
return $ret
}
stop(){
if [ ! -f "$mypidfile" ]; then
# not running; per LSB standards this is "ok"
action $"Stopping $prog: " /bin/true
return 0
fi
MYSQLPID=`cat "$mypidfile"`
if [ -n "$MYSQLPID" ]; then
/bin/kill "$MYSQLPID" >/dev/null 2>&1
ret=$?
if [ $ret -eq 0 ]; then
TIMEOUT="$STOPTIMEOUT"
while [ $TIMEOUT -gt 0 ]; do
/bin/kill -0 "$MYSQLPID" >/dev/null 2>&1 || break
sleep 1
let TIMEOUT=${TIMEOUT}-1
done
if [ $TIMEOUT -eq 0 ]; then
echo "Timeout error occurred trying to stop MySQL Daemon."
ret=1
action $"Stopping $prog: " /bin/false
else
rm -f $lockfile
rm -f "$socketfile"
action $"Stopping $prog: " /bin/true
fi
else
action $"Stopping $prog: " /bin/false
fi
else
# failed to read pidfile, probably insufficient permissions
action $"Stopping $prog: " /bin/false
ret=4
fi
return $ret
}
restart(){
stop
start
}
condrestart(){
[ -e $lockfile ] && restart || :
}
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status -p "$mypidfile" $prog
;;
restart)
restart
;;
condrestart|try-restart)
condrestart
;;
reload)
exit 3
;;
force-reload)
restart
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"
exit 2
esac
exit $?使用以下命令管理实例：
service mysqld3306 {start|stop|status|restart}
service mysqld3307 {start|stop|status|restart}本文出自 “LinuxNew” 博客，请务必保留此出处http://jimchen.blog.51cto.com/10026955/1969770
标签：mariadb
原文地址：http://jimchen.blog.51cto.com/10026955/1969770
