本linux为centos6.4 之前安装过mariaDB 5.5.32a，现尝试更新为 MariaDB Galera Cluster 10.0.12.
由于以前的 mariaDB5.5 安装的目录为 /usr/local/mysql
所以进行 rm -rf /usr/local/mysql
然后 cd/etc/yum.repos.d
由于 MariaDB Galera Cluster 10.0.12. 依赖于socat 且 centos6.4自带的源 没有socat，所以需要自己配置源并安装。
wget http://www.convirture.com/repos/definitions/rhel/6.x/convirt.repo
yum install socat
安装完 socat之后 开始配置mariaDB的源 并安装。源的配置文件信息可以在官网上获得。地址为
依据本机内容获取的配置为
#MariaDB 10.0 CentOS repository list - created 2014-08-06 07:07 UTC#http://mariadb.org/mariadb/repositories/ [mariadb] name = MariaDB baseurl = http://yum.mariadb.org/10.0/centos6-x86 gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB gpgcheck=1
在 /etc/yum.repos.d 目录下 运行命令
touch MariaDB.repo
vi MariaDB.repo
将上面的配置文件内容写入。保存。
yum install MariaDB-Galera-server MariaDB-client galera
安装 MariaDB Galera Cluster 10.0.12.
修改配置文件 /etc/my.cnf
将图片中的配置项 对应修改。
在 master机器 运行命令
mysqld --wsrep-new-cluster
=================我是华丽的分割线===========================
在slave机器 也如上安装。
在slave机器运行
$ mysqld --wsrep_cluster_address=gcomm://192.168.0.1 # DNS names work as well
在slave机器的test库中随意创建一个测试表。引擎为innoDB.并插入数据
连接master库 查询 刚才的数据。成功。配置完成。
本机的 my.cnf文件最终内容为
# Example MariaDB config file for very large systems. # # This is for a large system with memory of 1G-2G where the system runs mainly # MariaDB. # # MariaDB programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, do: # 'my_print_defaults --help' and see what is printed under # Default options are read from the following files in the given order: # More information at: http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # The following options will be passed to all MySQL clients [client] #password = your_password port = 3306 socket = /tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] datadir = /data/mysql port = 3306 socket = /tmp/mysql.sock skip-external-locking key_buffer_size = 384M max_allowed_packet = 1M table_open_cache = 512 sort_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 8M myisam_sort_buffer_size = 64M thread_cache_size = 8 #query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 8 # Point the following paths to a dedicated disk #tmpdir = /tmp/ # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # #skip-networking # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id = 1 # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>, # MASTER_USER=<user>, MASTER_PASSWORD=<password> ; # # where you replace <host>, <user>, <password> by quoted strings and # <port> by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # change in this file to the variables' values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = <hostname> # # The username the slave will use for authentication when connecting # to the master - required #master-user = <username> # # The password the slave will authenticate with when connecting to # the master - required #master-password = <password> # # The port the master is listening on. # optional - defaults to 3306 #master-port = <port> # # binary logging - not required for slaves, but recommended #log-bin=mysql-bin # # binary logging format - mixed recommended binlog_format=ROW # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /data/mysql #innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend #innodb_log_group_home_dir = /data/mysql # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 384M #innodb_additional_mem_pool_size = 20M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 100M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 wsrep_provider = /usr/lib/galera/libgalera_smm.so wsrep_cluster_address = 'gcomm://' default_storage_engine=innoDB innodb_autoinc_lock_mode=2 innodb_doublewrite=1 query_cache_size=0 innodb_flush_log_at_trx_commit = 2 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout
安装过程参考