mysql数据库安装和修改默认存储路径的方法
发布时间：2022-01-21 09:27:50 所属栏目：MySql教程 来源：互联网
导读：这篇文章主要介绍mysql数据库安装和修改默认存储路径的方法，在日常操作中，相信很多人在mysql数据库安装和修改默认存储路径的方法问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答mysql数据库安装和修改默认存储路径的方法
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这篇文章主要介绍“mysql数据库安装和修改默认存储路径的方法”，在日常操作中，相信很多人在mysql数据库安装和修改默认存储路径的方法问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”mysql数据库安装和修改默认存储路径的方法”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！ 1、mysql数据库安装 [root@zrbapp ~]# [root@zrbapp ~]# ll /soft/mysql_software/ total 196380 -rw-r--r-- 1 root root 25402568 Oct 31 23:51 mysql-community-client-5.7.25-1.el7.x86_64.rpm -rw-r--r-- 1 root root 280904 Oct 31 23:51 mysql-community-common-5.7.25-1.el7.x86_64.rpm -rw-r--r-- 1 root root 2271668 Oct 31 23:51 mysql-community-libs-5.7.25-1.el7.x86_64.rpm -rw-r--r-- 1 root root 173130520 Oct 31 23:52 mysql-community-server-5.7.25-1.el7.x86_64.rpm drwxr-xr-x 2 root root 245 Oct 31 23:52 tool [root@zrbapp ~]# [root@zrbapp ~]# rpm -ivh /soft/mysql_software/*.rpm warning: /soft/mysql_software/mysql-community-client-5.7.25-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.25-1.e################################# [ 25%] 2:mysql-community-libs-5.7.25-1.el7################################# [ 50%] 3:mysql-community-client-5.7.25-1.e################################# [ 75%] 4:mysql-community-server-5.7.25-1.e################################# [100%] [root@zrbapp ~]# [root@zrbapp ~]# systemctl start mysqld [root@zrbapp ~]# [root@zrbapp ~]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-11-01 04:36:09 CST; 17s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 10148 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 10074 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 10151 (mysqld) CGroup: /system.slice/mysqld.service └─10151 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Nov 01 04:35:50 zrbapp02 systemd[1]: Starting MySQL Server... Nov 01 04:36:09 zrbapp02 systemd[1]: Started MySQL Server. [root@zrbapp ~]# [root@zrbapp ~]# 2、修改mysql数据库默认路径 [root@zrbapp mysql]# [root@zrbapp mysql]# cat /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M datadir=/var/lib/mysql ----修改默认路径到指定位置 socket=/var/lib/mysql/mysql.sock # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid [root@zrbapp mysql]# 2.1 停止mysql数据 [root@zrbapp mysql]# systemctl stop mysqld 2.2 将mysql数据库打包 [root@zrbapp mysql]# cd /var/lib [root@zrbapp mysql]# tar -cvf mysql.tar mysql [root@zrbapp mysql]# ll /var/lib/mysql.tar -rw-r--r-- 1 root root 126791680 Nov 1 06:03 /var/lib/mysql.tar [root@zrbapp mysql]# 2.3 创建mysql数据库目标存储路径并赋属组权限 [root@zrbapp mysql]# mkdir -p /mysqldb [root@zrbapp mysql]# chown -R mysql:mysql /mysqldb [root@zrbapp mysql]# chown -R 755 /mysqldb 2.4 将打包好的mysql数据库移动到目标存储路径（mysqldb) [root@zrbapp mysql]# mv /var/lib/mysql.tar /mysqldb 2.5 进入目标存储路径解压mysql数据库 [root@zrbapp mysql]# cd /mysqldb [root@zrbapp mysql]# tar -xvf mysqldb.tar 2.6 修改mysql数据库配置文件my.cnf [root@zrbapp mysql]# vi /etc/my.cnf # For advice on how to change settings please see # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%. # innodb_buffer_pool_size = 128M # # Remove leading # to turn on a very important data integrity option: logging # changes to the binary log between backups. # log_bin # # Remove leading # to set options mainly useful for reporting servers. # The server defaults are faster for transactions and fast SELECTs. # Adjust sizes as needed, experiment to find the optimal values. # join_buffer_size = 128M # sort_buffer_size = 2M # read_rnd_buffer_size = 2M #datadir=/var/lib/mysql ----注销掉原来mysql数据库路径 datadir=/mysqldb/mysql ----增加目标mysql数据库路径 #socket=/mysqldb/mysql/mysql.sock #socket路径若修改则在删除/var/lib/mysql数据时则不用考虑保留mysql.sock文件，本例保持默认！ socket=/var/lib/mysql/mysql.sock #socket路径可以保持不变，但注意在删除/var/lib/mysql目录的mysql的文件时则需要保留mysql.sock文件,否则导致数据库启动失败； # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid wq! ----并保存退出即可 删除/var/lib/mysql目录下除mysql.sock和mysql.sock.lock以外的所有文件，当前也可以选择不删除不影响 [root@zrbapp mysql]# ls auto.cnf ca.pem client-key.pem ibdata1 ib_logfile1 mysql.sock performance_schema public_key.pem server-key.pem ca-key.pem client-cert.pem ib_buffer_pool ib_logfile0 mysql mysql.sock.lock private_key.pem server-cert.pem sys [root@zrbapp mysql]# 2.7 启动数据库并查看状态 [root@zrbapp mysql]# [root@zrbapp mysql]# systemctl start mysqld [root@zrbapp mysql]# [root@zrbapp mysql]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Fri 2019-11-01 06:20:36 CST; 6s ago ----数据库启动正常； Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 10348 ExecStart=/usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 10331 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 10351 (mysqld) CGroup: /system.slice/mysqld.service └─10351 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Nov 01 06:20:33 zrbapp systemd[1]: Starting MySQL Server... Nov 01 06:20:36 zrbapp systemd[1]: Started MySQL Server. [root@zrbapp mysql]# [root@zrbapp mysql]# 到此，关于“mysql数据库安装和修改默认存储路径的方法”的学习就结束了，希望能够解决大家的疑惑。 （编辑：云计算网_泰州站长网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |
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