CentOS 6.5上安装MariaDB 作者:chszs,转载需注明。博客主页:http://blog.csdn.net/chszs 1、软件环境: CentOS 6.5 x64 2、安装过程 1)在/etc/yum.repos.d/目录创建MariaDB.repo文件,内容如下: # MariaDB 5.5 CentOS repository list - created 2014-0
CentOS 6.5上安装MariaDB
作者:chszs,转载需注明。博客主页:http://blog.csdn.net/chszs1、软件环境: CentOS 6.5 x64
2、安装过程 1)在/etc/yum.repos.d/目录创建MariaDB.repo文件,内容如下:
# MariaDB 5.5 CentOS repository list - created 2014-03-04 11:20 UTC # http://mariadb.org/mariadb/repositories/ [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/5.5/centos6-amd64 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1
# yum install MariaDB-server MariaDB-client Loaded plugins: fastestmirror, security base | 3.7 kB 00:00 base/primary_db | 4.4 MB 01:11 extras | 3.4 kB 00:00 extras/primary_db | 19 kB 00:00 mariadb | 1.9 kB 00:00 mariadb/primary_db | 15 kB 00:00 updates | 3.4 kB 00:00 updates/primary_db | 2.1 MB 00:22 Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package MariaDB-client.x86_64 0:5.5.36-1.el6 will be obsoleting --> Processing Dependency: MariaDB-common for package: MariaDB-client-5.5.36-1.el6.x86_64 ---> Package MariaDB-server.x86_64 0:5.5.36-1.el6 will be obsoleting ---> Package mysql.x86_64 0:5.1.71-1.el6 will be obsoleted ---> Package mysql-server.x86_64 0:5.1.71-1.el6 will be obsoleted --> Running transaction check ---> Package MariaDB-common.x86_64 0:5.5.36-1.el6 will be installed --> Processing Dependency: MariaDB-compat for package: MariaDB-common-5.5.36-1.el6.x86_64 --> Running transaction check ---> Package MariaDB-compat.x86_64 0:5.5.36-1.el6 will be obsoleting ---> Package mysql-libs.x86_64 0:5.1.71-1.el6 will be obsoleted --> Finished Dependency Resolution Dependencies Resolved ================================================================================================================== Package Arch Version Repository Size ================================================================================================================== Installing: MariaDB-client x86_64 5.5.36-1.el6 mariadb 10 M replacing mysql.x86_64 5.1.71-1.el6 MariaDB-compat x86_64 5.5.36-1.el6 mariadb 2.7 M replacing mysql-libs.x86_64 5.1.71-1.el6 MariaDB-server x86_64 5.5.36-1.el6 mariadb 42 M replacing mysql-server.x86_64 5.1.71-1.el6 Installing for dependencies: MariaDB-common x86_64 5.5.36-1.el6 mariadb 23 k Transaction Summary ================================================================================================================== Install 4 Package(s) Total download size: 55 M Is this ok [y/N]: y Downloading Packages: (1/4): MariaDB-5.5.36-centos6-x86_64-client.rpm | 10 MB 04:45 (2/4): MariaDB-5.5.36-centos6-x86_64-common.rpm | 23 kB 00:00 (3/4): MariaDB-5.5.36-centos6-x86_64-compat.rpm | 2.7 MB 01:02 (4/4): MariaDB-5.5.36-centos6-x86_64-server.rpm | 42 MB 17:44 ------------------------------------------------------------------------------------------------------------------ Total 40 kB/s | 55 MB 23:34 warning: rpmts_HdrFromFdno: Header V4 DSA/SHA1 Signature, key ID 1bb943db: NOKEY Retrieving key from https://yum.mariadb.org/RPM-GPG-KEY-MariaDB Importing GPG key 0x1BB943DB: Userid: "Daniel Bartholomew (Monty Program signing key)
3、启动MariaDB
# /etc/init.d/mysqld start Initializing MySQL database: WARNING: The host 'Cloud-Q2' could not be looked up with resolveip. This probably means that your libc libraries are not 100 % compatible with this binary MySQL version. The MySQL daemon, mysqld, should work normally with the exception that host name resolving will not work. This means that you should use IP addresses instead of hostnames when specifying MySQL privileges ! Installing MySQL system tables... OK Filling help tables... OK To start mysqld at boot time you have to copy support-files/mysql.server to the right place for your system PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ! To do so, start the server, then issue the following commands: /usr/bin/mysqladmin -u root password 'new-password' /usr/bin/mysqladmin -u root -h Cloud-Q2 password 'new-password' Alternatively you can run: /usr/bin/mysql_secure_installation which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers. See the manual for more instructions. You can start the MySQL daemon with: cd /usr ; /usr/bin/mysqld_safe & You can test the MySQL daemon with mysql-test-run.pl cd /usr/mysql-test ; perl mysql-test-run.pl Please report any problems with the /usr/bin/mysqlbug script! [ OK ] Starting mysqld: [ OK ]
4、为MariaDB设置密码
# /usr/bin/mysqladmin -u root password 'adminadmin'
MySQL [(none)]> use mysql; MySQL [mysql]> update user set host='%' where user='root' and host='127.0.0.1'; MySQL [mysql]> grant all privileges on *.* to 'root'@'%' identified by 'adminadmin' with grant option; MySQL [mysql]> flush privileges;
# vi /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT
# service iptables restart

存储过程是MySQL中的预编译SQL语句集合,用于提高性能和简化复杂操作。1.提高性能:首次编译后,后续调用无需重新编译。2.提高安全性:通过权限控制限制数据表访问。3.简化复杂操作:将多条SQL语句组合,简化应用层逻辑。

MySQL查询缓存的工作原理是通过存储SELECT查询的结果,当相同查询再次执行时,直接返回缓存结果。1)查询缓存提高数据库读取性能,通过哈希值查找缓存结果。2)配置简单,在MySQL配置文件中设置query_cache_type和query_cache_size。3)使用SQL_NO_CACHE关键字可以禁用特定查询的缓存。4)在高频更新环境中,查询缓存可能导致性能瓶颈,需通过监控和调整参数优化使用。

MySQL被广泛应用于各种项目中的原因包括:1.高性能与可扩展性,支持多种存储引擎;2.易于使用和维护,配置简单且工具丰富;3.丰富的生态系统,吸引大量社区和第三方工具支持;4.跨平台支持,适用于多种操作系统。

MySQL数据库升级的步骤包括:1.备份数据库,2.停止当前MySQL服务,3.安装新版本MySQL,4.启动新版本MySQL服务,5.恢复数据库。升级过程需注意兼容性问题,并可使用高级工具如PerconaToolkit进行测试和优化。

MySQL备份策略包括逻辑备份、物理备份、增量备份、基于复制的备份和云备份。1.逻辑备份使用mysqldump导出数据库结构和数据,适合小型数据库和版本迁移。2.物理备份通过复制数据文件,速度快且全面,但需数据库一致性。3.增量备份利用二进制日志记录变化,适用于大型数据库。4.基于复制的备份通过从服务器备份,减少对生产系统的影响。5.云备份如AmazonRDS提供自动化解决方案,但成本和控制需考虑。选择策略时应考虑数据库大小、停机容忍度、恢复时间和恢复点目标。

MySQLclusteringenhancesdatabaserobustnessandscalabilitybydistributingdataacrossmultiplenodes.ItusestheNDBenginefordatareplicationandfaulttolerance,ensuringhighavailability.Setupinvolvesconfiguringmanagement,data,andSQLnodes,withcarefulmonitoringandpe

在MySQL中优化数据库模式设计可通过以下步骤提升性能:1.索引优化:在常用查询列上创建索引,平衡查询和插入更新的开销。2.表结构优化:通过规范化或反规范化减少数据冗余,提高访问效率。3.数据类型选择:使用合适的数据类型,如INT替代VARCHAR,减少存储空间。4.分区和分表:对于大数据量,使用分区和分表分散数据,提升查询和维护效率。

tooptimizemysqlperformance,lofterTheSeSteps:1)inasemproperIndexingTospeedUpqueries,2)使用ExplaintplaintoAnalyzeandoptimizequeryPerformance,3)ActiveServerConfigurationStersLikeTlikeTlikeTlikeIkeLikeIkeIkeLikeIkeLikeIkeLikeIkeLikeNodb_buffer_pool_sizizeandmax_connections,4)


热AI工具

Undresser.AI Undress
人工智能驱动的应用程序,用于创建逼真的裸体照片

AI Clothes Remover
用于从照片中去除衣服的在线人工智能工具。

Undress AI Tool
免费脱衣服图片

Clothoff.io
AI脱衣机

Video Face Swap
使用我们完全免费的人工智能换脸工具轻松在任何视频中换脸!

热门文章

热工具

Dreamweaver CS6
视觉化网页开发工具

SublimeText3 英文版
推荐:为Win版本,支持代码提示!

SublimeText3汉化版
中文版,非常好用

WebStorm Mac版
好用的JavaScript开发工具

VSCode Windows 64位 下载
微软推出的免费、功能强大的一款IDE编辑器