UbuntuMysql集群
家在网上都能找到都是RedHat系统等等,对Ubuntu系统MySQL集群就没有介绍文章,我现在写写Ubuntu这个MySQL集群方法。新手不要骂我,呵呵。
介绍网络环境:
测试环境:
Server1: ndbd 192.168.245.11
Server2: ndbd 192.168.245.12
Server3: mysqld –ndb-cluster 192.168.245.13
ndbd: 数据库节点。
mysqld –ndb-cluster: MySQL服务器节点,程序直接访问的是这台机器的IP。默认端口仍是3306。
ndbd_mgm ndbd_mgmd:管理节点。管理/查看各库节点和服务器节点的状态。
二、集群方案
1.管理节点:server3(192.168.245.13)
2.存储节点:server1(192.168.245.11),server2(192.168.245.12)
3.SQL节点:server1(192.168.245.11),server2(192.168.245.12),server3(192.168.245.13)
三、mysql安装和配置
1.安装,sudo apt-get install mysql-server
2.配置这三台服务器上配置my.cnf,这三台服务器都要配置
<ol class="dp-xml"> <li class="alt">vim /etc/mysql/my.cnf </li> <li> —————————————–my.cnf开始——————————————– </li> <li class="alt">Ubuntu@ubuntu:~$ cat /etc/mysql/my.cnf </li> <li># </li> <li class="alt"># The MySQL database server configuration file. </li> <li># </li> <li class="alt"># You can copy this to one of: </li> <li># - “/etc/mysql/my.cnf” to set global options, </li> <li class="alt"># - “~/.my.cnf” to set user-specific options. </li> <li># </li> <li class="alt"># One can use all long options that the program supports. </li> <li># Run program with –help to get a list of available options and with </li> <li class="alt"># –print-defaults to see which it would actually understand and use. </li> <li># </li> <li class="alt"># For explanations see # http://dev.mysql.com/doc/mysql/en/serve ... ables.html </li> <li># This will be passed to all mysql clients </li> <li class="alt"># It has been reported that passwords should be enclosed with ticks/quotes </li> <li># escpecially if they contain “#” chars… </li> <li class="alt"># Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock </li> <li># Here is entries for some specific programs </li> <li class="alt"># The following values assume you have at least 32M ram </li> <li># This was formally known as [safe_mysqld]. Both versions are currently parsed. [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] </li> <li class="alt"># </li> <li># * Basic Settings </li> <li class="alt"># </li> <li># </li> <li class="alt"># * IMPORTANT </li> <li># If you make changes to these settings and your system uses apparmor, you may </li> <li class="alt"># also need to also adjust /etc/apparmor.d/usr.sbin.mysqld. </li> <li># user = mysql pid-file = /var/run/mysqld/mysqld.pid socket = /var/run/mysqld/mysqld.sock port = 3306 basedir = /usr datadir = /var/lib/mysql tmpdir = /tmp language = /usr/share/mysql/english skip-external-locking </li> <li class="alt"># </li> <li># Instead of skip-networking the default is now to listen only on </li> <li class="alt"># localhost which is more compatible and is not less secure. </li> <li># bind-address = 127.0.0.1 </li> <li class="alt"># </li> <li># * Fine Tuning </li> <li class="alt"># key_buffer = 16M max_allowed_packet = 16M thread_stack = 128K thread_cache_size = 8 </li> <li>#max_connections = 100 #table_cache = 64 #thread_concurrency = 10 </li> <li class="alt"># </li> <li># * Query Cache Configuration </li> <li class="alt"># query_cache_limit = 1M query_cache_size = 16M </li> <li># </li> <li class="alt"># * Logging and Replication </li> <li># </li> <li class="alt"># Both location gets rotated by the cronjob. </li> <li># Be aware that this log type is a performance killer. </li> <li class="alt">#log = /var/log/mysql/mysql.log </li> <li># </li> <li class="alt"># Error logging goes to syslog. This is a Debian improvement </li> <li># </li> <li class="alt"># Here you can see queries with especially long duration #log_slow_queries = /var/log/mysql/mysql-slow.log </li> <li>#long_query_time = 2 </li> <li class="alt">#log-queries-not-using-indexes </li> <li># </li> <li class="alt"># The following can be used as easy to replay backup logs or for replication. </li> <li># note: if you are setting up a replication slave, see README.Debian about </li> <li class="alt"># other settings you may need to change. </li> <li>#server-id = 1 </li> <li class="alt">#log_bin = /var/log/mysql/mysql-bin.log expire_logs_days = 10 max_binlog_size = 100M </li> <li>#binlog_do_db = include_database_name </li> <li class="alt">#binlog_ignore_db = include_database_name </li> <li># </li> <li class="alt"># * BerkeleyDB </li> <li># </li> <li class="alt"># Using BerkeleyDB is now discouraged as its support will cease in 5.1.12. skip-bdb </li> <li># </li> <li class="alt"># * MyISAM </li> <li># </li> <li class="alt"># MyISAM is enabled by default with a 10MB datafile in /var/lib/mysql/. </li> <li># Read the manual for more MyISAM related options. There are many! </li> <li class="alt"># You might want to disable MyISAM to shrink the mysqld process by circa 100MB. </li> <li>#skip-innodb </li> <li class="alt"># </li> <li># * Security Features </li> <li class="alt"># </li> <li># Read the manual, too, if you want chroot! </li> <li class="alt"># chroot = /var/lib/mysql/ </li> <li># </li> <li class="alt"># For generating SSL certificates I recommend the OpenSSL GUI “tinyca”. </li> <li># </li> <li class="alt"># ssl-ca=/etc/mysql/cacert.pem </li> <li># ssl-cert=/etc/mysql/server-cert.pem </li> <li class="alt"># ssl-key=/etc/mysql/server-key.pem ndbcluster ndb-connectstring=192.168.245.13 [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] </li> <li>#no-auto-rehash </li> <li class="alt"># faster start of mysql but no tab completition [isamchk] key_buffer = 16M </li> <li># </li> <li class="alt"># * NDB Cluster </li> <li># </li> <li class="alt"># See /usr/share/doc/mysql-server-*/README.Debian for more information. </li> <li># </li> <li class="alt"># The following configuration is read by the NDB Data Nodes (ndbd processes) </li> <li># not from the NDB Management Nodes (ndb_mgmd processes). </li> <li class="alt"># [MYSQL_CLUSTER] ndb-connectstring=192.168.245.13 </li> <li># </li> <li class="alt"># * IMPORTANT: Additional settings that can override those from this file! </li> <li># The files must end with ‘.cnf’, otherwise they’ll be ignored. </li> <li class="alt"># !includedir /etc/mysql/conf.d/ </li> <li>Ubuntu@ubuntu:~$ </li> <li class="alt">———————————my.cnf结束——————————————————— </li> </ol>