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[Mysql数据库] CentOS系统中MySQL5.1升级至5.5.36

发表于 2017-10-9 08:00:02
尚学堂AD

记录下CentOS 6.4环境将MySQL5.1升级至5.5.36的过程,希望对大家有个参考。

1.为了安全期间,首先需要备份原有数据

2.卸载原有MySQL,先停止原有的MySQL服务,再查找 find / -name mysql

  1. [root@linuxidc /]# find / -name mysql
  2. /var/lib/mysql
  3. /var/lib/mysql/mysql
  4. /usr/lib64/mysql
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并移除服务

  1. [root@linuxidc /]# rm -rf /var/lib/mysql
  2. [root@linuxidc /]# rm -rf /var/lib/mysql
  3. [root@linuxidc /]# rm -rf /usr/lib64/mysql
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3.安装cmake

  1. [root@linuxidc download]# wget http://www.cmake.org/files/v2.8/cmake-2.8.12.2.tar.gz
  2. [root@linuxidc download]# tarx zvfc cmake-2.8.12.2.tar.gz
  3. [root@linuxidc download]# cd cmake-2.8.12.2
  4. [root@linuxidc cmake-2.8.12.2]# ./configure
  5. [root@linuxidc cmake-2.8.12.2]# make && make install
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4.下载安装MySQL5.5.36

  1. [root@linuxidc download]# wget http://dev.mysql.com/get/Downloads/MySQL-5.5/mysql-5.5.36.tar.gz
  2. [root@linuxidc download]# tar xzvf mysql-5.5.36.tar.gz
  3. [root@linuxidc download]# cd mysql-5.5.36
  4. [root@linuxidc mysql-5.5.36]# cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_READLINE=1 -DWITH_SSL=system -DWITH_ZLIB=system -DWITH_EMBEDDED_SERVER=1 -DENABLED_LOCAL_INFILE=1 -DMYSQL_DATADIR=/home/mysql
  5. [root@linuxidc mysql-5.5.36]# make && make install
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在cmake的过程中出错了,提示Could NOT find Curses (missing: CURSES_LIBRARY CURSES_INCLUDE_PATH)

执行以下代码就可以了,执行好之后继续cmake,然后再make && make install

[root@localhost mysql-5.5.36]# rm CMakeCache.txt

[root@localhost mysql-5.5.36]# yum install ncurses-devel

5.接下来需要把之前备份下来的my.cnf文件,复制至/etc/my.cnf

MySQL会读取/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf /.my.cnf。左边的文件优先级是最高的

6.配置好之后,我们就启动mysql,发现有一个问题启动MySQL提示:The server quit without updating PID file(…)失败

查看my.cnf文件设置的日记文件地址/var/log/mysqld.log,错误提示如下

170715 12:31:36 mysqld_safe mysqld from pid file /var/lib/mysql/linuxidc.pid ended

170715 12:57:48 mysqld_safe Starting mysqld daemon with databases from /home/mysql

170715 12:57:48 InnoDB: The InnoDB memory heap is disabled

170715 12:57:48 InnoDB: Mutexes and rw_locks use GCC atomic builtins

170715 12:57:48 InnoDB: Compressed tables use zlib 1.2.3

170715 12:57:48 InnoDB: Initializing buffer pool, size = 128.0M

170715 12:57:48 InnoDB: Completed initialization of buffer pool

170715 12:57:48 InnoDB: highest supported file format is Barracuda.

170715 12:57:48 InnoDB: Waiting for the background threads to start

170715 12:57:49 InnoDB: 5.5.36 started; log sequence number 2645823

170715 12:57:49 [ERROR] /usr/local/mysql/bin/mysqld: unknown variable 'default-character-set=utf8'

170715 12:57:49 [ERROR] Aborting

此报错是由/etc/my.cnf配置文件下的[mysqld]设置字符集引起的,解决方法:将default-character-set=utf8 改为 character_set_server=utf8

7.通过mysql -u root -p命令连接mysql。(我们之前有安装过mysql,数据库文件还在,所以不需要再添加用户设置权限了)

出现了错误信息:ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'

出错原因是我们mysql.sock文件在/usr/lib/mysql/文件夹下

可以尝试通过下面命令连接,并查看mysql版本

[root@linuxidc var]# mysql -u root -p -S /usr/lib/mysql/mysql.sock

mysql> select version();

+-----------+

| version() |

+-----------+

| 5.5.36 |

+-----------+

1 row in set (0.00 sec)



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