centos上安装mysql及格式化硬盘_MySQL
CentOS
卸载mysql
1、查看安装包 rpm -aq |grep mysql
2、开始卸载
yum remove Mysql*****
一个一个卸载
安装mysql
1、复制安装包到机器上
2、rpm -ivh Mysql-server***
3、rpm -ivh Mysql-client***
4、启动mysql service mysql start
5、登录mysql -uroot -p
6、成功后退出 exit
7、停止服务 service mysql stop
8、拷贝my.conf 到 /etc/my.conf
9、更改my.conf vi /etc/my.conf 配置一些参数,包括存储位置(存储位置新建的目录需要修改权限给指定的用户组和用户 chown -R mysql:mysql 修改的目录)
10、更改存储位置的时候 需要格式化硬盘
11、fdisk -l 查看未格式化的磁盘如 /dev/xvdd
12、格式化 fdisk /dev/xvdd
13、一次输入 n p 1 一直回车 然后 w(保存)
14、格式化分区 mkfs.ext3 /dev/xvdd1
15、完成后挂接到 /data
16、设置my.conf中的存储位置
17、完成后更改权限chown mysql:mysql *启动mysql
18、确认启动成功
19、执行/usr/local/mysql/bin/mysql_install_db --datadir=/opt/mysql/data --user=mysql
20、一般来说修改之后 使用 service mysql start 是启动不了了 要采用 /usr/bin/mysqld_safe &
注:
1、jdk的可执行权限要配置 chown -R mysql:mysql 修改的目录
2、挂载硬盘 需要写到/etc/fstab文件中/dev/xvdd1 /mnt/nfs ext3 defaults 1 1
3、设置环境变量
export JAVA_HOME=/usr/java/jdk1.6.0_29
export PATH=$PATH:$JAVA_HOME/bin
4、更改jvm参数,修改catalina.sh文件229行添加JAVA_OPTS="$JAVA_OPTS -server -Xms20480M -Xmx20480M -Xmn7680M -Xss20480k -XX:PermSize=1280M -XX:MaxPermSize=4096m -XX:+AggressiveOpts -XX:+UseParallelGC -XX:+UseBiasedLocking"
5、采用nfs作为文件服务器的,需要配置/etc/fstab,添加行 IP:/mnt/nfs /usr/java/apache-tomcat-6.0.35/webapps/ROOT/uploads nfs nodev,rw,rsize=32768,wsize=32768 0 0

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