centos 6.6升级自带mysql版本文档
centos 6.6升级自带mysql版本文档
2015/9/9 11:12:45
实验环境:
| 主机名 | ip地址 | 操作系统 | 应用角色 | 操作 |
|---|---|---|---|---|
| Linux | 192.168.1.107 | Centos 6.6 | zabbix-server & zabbix-agent | 升级mysql版本 |
软件版本:
| 软件名 | 升级前软件版本 | 升级后版本 |
|---|---|---|
| Mysql | 5.1.73 | 5.6.26 |
安装配置过程
1.备份并停止MySQL服务
[root@Linux mysql]# pwd
/var/lib/mysql
[root@Linux mysql]# tar zcf ../mysql.tar.gz mysql
[root@Linux]# cp /etc/my.cnf /etc/my.cnf.bak
[root@Linux]# service mysqld stop
2.下载并安装mysql repo源
[root@Linux]# wget http://dev.mysql.com/get/mysql-community-release-el6-5.noarch.rpm
[root@Linux ~]# yum localinstall mysql-community-release-el6-5.noarch.rpm
#可以通过下面的命令来确认这个仓库被成功添加：
[root@Linux yum.repos.d]# yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community MySQL Connectors Community 14
mysql-tools-community MySQL Tools Community 27
mysql56-community MySQL 5.6 Community Server 180
3.查看/etc/yum.repos.d/mysql-community.repo配置文件
查看/etc/yum.repos.d/mysql-community.repo配置文件，里面列出了 mysql-5.5 mysql-5.7，但是默认打开了 mysql-5.6，其余两个关闭，重点看enabled=xxx这一项，=0为关闭，=1为打开,如下图
注意：一次只能打开一个版本，否则yum不会选择这个文件的，又自动升级 5.1版本去了。
4.重建yum repo元数据
[root@Linux yum.repos.d]# yum makecache
5.安装zabbix相关包
#查看mysql repo相关软件包
[root@Linux]# yum list | grep mysql-community
mysql-community-release.noarch el6-5 @/mysql-community-release-el6-5.noarch
mysql-community-bench.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-client.i686 5.6.26-2.el6 mysql56-community
mysql-community-client.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-common.i686 5.6.26-2.el6 mysql56-community
mysql-community-common.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-devel.i686 5.6.26-2.el6 mysql56-community
mysql-community-devel.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-embedded.i686 5.6.26-2.el6 mysql56-community
mysql-community-embedded.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-embedded-devel.i686 5.6.26-2.el6 mysql56-community
mysql-community-embedded-devel.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-libs.i686 5.6.26-2.el6 mysql56-community
mysql-community-libs.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-libs-compat.i686 5.6.26-2.el6 mysql56-community
mysql-community-libs-compat.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-server.x86_64 5.6.26-2.el6 mysql56-community
mysql-community-test.x86_64 5.6.26-2.el6 mysql56-community
#安装高版本mysql
[root@Linux yum.repos.d]# yum install mysql-community-server.x86_64 -y
6.查看mysql版本。
[root@Linux ~]# mysql --version
mysql Ver 14.14 Distrib 5.1.73, for redhat-linux-gnu (x86_64) using readline 5.1
[root@Linux ~]# mysql --version
mysql Ver 14.14 Distrib 5.6.26, for Linux (x86_64) using EditLine wrapper
7.测试mysql是否能正常使用。
[root@Linux yum.repos.d]# mysql --version
mysql Ver 14.14 Distrib 5.6.26, for Linux (x86_64) using EditLine wrapper
[root@Linux yum.repos.d]# service mysqld restart
停止 mysqld： [确定]
正在启动 mysqld： [确定]
[root@Linux yum.repos.d]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.26 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
端口监听情况
[root@Linux yum.repos.d]# lsof -i:3306
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
mysqld 3327 mysql 10u IPv6 30158 0t0 TCP *:mysql (LISTEN)
查看机器上所跑的zabbix是否恢复正常。
8.问题记录
#zabbix原先有监控mysql数据模板，并测试可以正常使用，可以去参考我直接发表的zabbix 2.4监控mysql所示，但是升级完后一直监控不到，查看mysql日志，发现如下：
#上述所说的是缺表现象，解决办法：
#由于是将低版本的MySQL datadir目录直接拷贝到5.6.21-enterprise-commercial-advanced-log的，低版本的mysql这个schema中并没有innodb_table_stats，innodb_index_stats这些表。所以登录到mysql这个schema中手工创建这些表后，重启mysql即可。
[root@Linux log]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 43
Server version: 5.6.26 MySQL Community Server (GPL)
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| test |
| zabbix |
+--------------------+
4 rows in set (0.00 sec)
mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> CREATE TABLE `innodb_table_stats` (
-> `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-> `n_rows` bigint(20) unsigned NOT NULL,
-> `clustered_index_size` bigint(20) unsigned NOT NULL,
-> `sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,
-> PRIMARY KEY (`database_name`,`table_name`)
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
Query OK, 0 rows affected (0.17 sec)
mysql> CREATE TABLE `innodb_index_stats` (
-> `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `index_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
-> `stat_name` varchar(64) COLLATE utf8_bin NOT NULL,
-> `stat_value` bigint(20) unsigned NOT NULL,
-> `sample_size` bigint(20) unsigned DEFAULT NULL,
-> `stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,
-> PRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)
-> ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
Query OK, 0 rows affected (0.02 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
#再查看zabbix监控mysql图像，看是否有数据
已经可以从数据库读取数据，mysql升级成功。
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参考文献：
http://blog.chinaunix.net/uid-28216282-id-4848404.html
http://www.linuxidc.com/Linux/2014-11/109144.htm
http://blog.csdn.net/lwei_998/article/details/41278457