一、安裝mysql
在150,151上安裝mysql，安裝步驟如下：
yum install gcc-c++ cmake ncurses-devel bison perl -y useradd -s /sbin/nologin mysql mkdir -p /data/mysql chown -R mysql.mysql /data/mysql tar –zxvf mysql-5.5.44.tar.gz cd mysql-5.5.44 cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/data/mysql -DWITH_MYISAM_STORAGE_ENGINE=1 -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_MEMORY_STORAGE_ENGINE=1 -DWITH_READLINE=1 -DMYSQL_TCP_PORT=3306 -DENABLED_LOCAL_INFILE=1 -DWITH_PARTITION_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DWITH_DEBUG=0 -DMYSQL_USER=mysql -DMYSQL_UNIX_ADDR=/data/mysql/mysql.sock make -j2 && make install
二、配置mysql
在150上做如下操作：
cp /usr/local/src/mysql-5.5.44/support-files/mysql.server /etc/init.d/mysqld
chmod 755 /etc/init.d/mysqld
編輯/etc/my.cnf，把它的內容改爲如下：
[client] port = 3306 socket = /tmp/mysql.sock [mysqld] user = mysql server_id = 1 port = 3306 socket = /tmp/mysql.sock datadir = /data/mysql old_passwords = 1 lower_case_table_names = 1 character-set-server = utf8 default-storage-engine = MYISAM log-bin = bin.log log-error = error.log pid-file = mysql.pid long_query_time = 2 slow_query_log slow_query_log_file = slow.log binlog_cache_size = 4M binlog_format = mixed max_binlog_cache_size = 16M max_binlog_size = 1G expire_logs_days = 30 ft_min_word_len = 4 back_log = 512 max_allowed_packet = 64M max_connections = 4096 max_connect_errors = 100 join_buffer_size = 2M read_buffer_size = 2M read_rnd_buffer_size = 2M sort_buffer_size = 2M query_cache_size = 64M table_open_cache = 10000 thread_cache_size = 256 max_heap_table_size = 64M tmp_table_size = 64M thread_stack = 192K thread_concurrency = 24 local-infile = 0 skip-show-database skip-name-resolve skip-external-locking connect_timeout = 600 interactive_timeout = 600 wait_timeout = 600 #*** MyISAM key_buffer_size = 512M bulk_insert_buffer_size = 64M myisam_sort_buffer_size = 64M myisam_max_sort_file_size = 1G myisam_repair_threads = 1 concurrent_insert = 2 myisam_recover #*** INNODB innodb_buffer_pool_size = 16G innodb_additional_mem_pool_size = 32M innodb_data_file_path = ibdata1:1G;ibdata2:1G:autoextend innodb_read_io_threads = 8 innodb_write_io_threads = 8 innodb_file_per_table = 1 innodb_flush_log_at_trx_commit = 2 innodb_lock_wait_timeout = 120 innodb_log_buffer_size = 8M innodb_log_file_size = 256M innodb_log_files_in_group = 3 innodb_max_dirty_pages_pct = 90 innodb_thread_concurrency = 16 innodb_open_files = 10000 #innodb_force_recovery = 4 #*** Replication Slave read-only #skip-slave-start relay-log = relay.log log-slave-updates
/usr/local/mysql/scripts/mysql_install_db --basedir=/usr/local/mysql --datadir=/data/mysql --user=mysql
/etc/init.d/mysqld start
echo "PATH=$PATH:/usr/local/mysql/bin">>/etc/profile
source /etc/profile
在151上的操作和150一樣，只是在my.cnf文件裏將server-id 改爲2，log-bin=bin-log 去掉
三、配置mysql主從
在150上操作：
grant replication slave on *.* to tongbu@'192.168.10.151'identified by '123456'; #授權
show masterstatus;
在151上操作：
change master to
master_host='192.168.10.150',master_user='tongbu',master_password='123456',master_log_file='bin.000003',master_log_pos=262;
flush privileges; ##刷新權限
slave start; ##開啓從
show slave status\G;
查看mysql主從狀態，如果看到如下所示的兩個YES就表示mysql主從同步已經做好
