部署mysql多实例

1.编译安装cmake

# tar zxf cmake-3.5.2.tar.gz
# ./configure
# gmake 
# gmake install

3.编译安装MySQl

#useradd mysql -s /sbin/nologin -M 
# yum install ncurses-devel -y
# yum install libaio-devel -y
# tar xvf mysql-5.5.49.tar.gz
# cd mysql-5.5.49

cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql-5.5.49 -DEXTRA_CHARSETS=gbk,gb2312,utf8,ascii -DENABLED_LOCAL_INFILE=ON -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_FEDERATED_STORAGE_ENGINE=1 -DWITH_BLACKHOLE_STORAGE_ENGINE=1 -DWITHOUT_EXAMPLE_STORAGE_ENGINE=1 -DWITHOUT_PARTITION_STORAGE_ENGINE=1 -DWITH_FAST_MUTEXES=1 -DWITH_ZLIB=bundled -DENABLED_LOCAL_INFILE=1 -DWITH_READLINE=1 -DWITH_EMBEDDED_SERVER=1 -DWITH_DEBUG=0

# make
# make install
# ln -s /usr/local/mysql-5.5.49 /usr/local/mysql
# echo ‘export PATH=/usr/local/mysql/bin/:$PATH‘ >>/etc/profile
# tail -l /etc/profile
# source /etc/profile
# echo $PATH

4.建立多实例数据目录

//以两个实例为例

# mkdir -p /data/{3306,3307}/data
# tree /data/
/data/
|-- 3306
|   `-- data
`-- 3307
    `-- data

5.设置第一个实例配置文件

# vi /data/3306/my.cnf
[client]
port = 3306
socket = /data/3306/mysql.sock
[mysql]
no-auto-rehash
[mysqld]
user = mysql
port = 3306
socket = /data/3306/mysql.sock
basedir = /usr/local/mysql
datadir = /data/3306/data
open_files_limit = 1024
back_log = 600
max_connections = 800
max_connect_errors = 3000
table_cache = 614
external-locking = FALSE
max_allowed_packet =8M
sort_buffer_size = 1M
join_buffer_size = 1M
thread_cache_size = 100
thread_concurrency = 2
query_cache_size = 2M
query_cache_limit = 1M
query_cache_min_res_unit = 2k
thread_stack = 192K
tmp_table_size = 2M
max_heap_table_size = 2M
long_query_time = 1
pid-file = /data/3306/mysql.pid
log-bin = /data/3306/mysql-bin
relay-log = /data/3306/relay-bin
relay-log-info-file = /data/3306/relay-log.info
binlog_cache_size = 1M
max_binlog_cache_size = 1M
max_binlog_size = 2M
expire_logs_days = 7
key_buffer_size = 16M
read_buffer_size = 1M
read_rnd_buffer_size = 1M
bulk_insert_buffer_size = 1M
lower_case_table_names = 1
skip-name-resolve
slave-skip-errors = 1032,1062
replicate-ignore-db=mysql
server-id = 1
innodb_additional_mem_pool_size = 4M
innodb_buffer_pool_size = 32M
innodb_data_file_path = ibdata1:128M:autoextend
innodb_file_io_threads = 4
innodb_thread_concurrency = 8
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 2M
innodb_log_file_size = 4M
innodb_log_files_in_group = 3
innodb_max_dirty_pages_pct = 90
innodb_lock_wait_timeout = 120
innodb_file_per_table = 0
[mysqldump]
quick
max_allowed_packet = 2M
[mysqld_safe]
log-error=/data/3306/mysql_3306.err
pid-file=/data/3306/mysqld.pid

6.设置启动文本

vi /data/3306/mysqld
#!/bin/sh
port=3306
mysql_user="root"
mysql_pwd=""
CmdPath="/application/usr/local/mysql/bin"
mysql_sock="/data/${port}/mysql.sock"
#startup function
function_start_mysql()
{
  if [ ! -e "$mysql_sock" ];then
    printf "Starting MySQL...\n"
    /bin/sh ${CmdPath}/mysqld_safe --defaults-file=/data/${port}/my.cnf 2>&1 > /dev/null &
  else
    printf "MySQL is running...\n"
    exit
  fi
}
#stop function
function_stop_mysql()
{
  if [ ! -e "$mysql_sock" ];then
     printf "MySQL is stopped...\n"
     exit
  else
     printf "Stoping MySQL...\n"
     ${CmdPath}/mysqladmin -u ${mysql_user} -p${mysql_pwd} -S /data/${port}/mysql.sock shutdown
   fi
}
#restart function
function_restart_mysql()
{
  printf "Restarting MySQL...\n"
  function_stop_mysql
  sleep 2
  function_start_mysql
}
case $1 in
start)
  function_start_mysql
;;
stop)
  function_stop_mysql
;;
restart)
  function_restart_mysql
;;
*)
  printf "Usage: /data/${port}/mysql {start|stop|restart}\n"
esac
# chown -R mysql.mysql /data/
# chmod +x mysqld

7.初始化数据库

# /usr/local/mysql/scripts/mysql_install_db  --basedir=/usr/local/mysql/ --datadir=/data/3306/data/ --user=mysql

8.启动数据库

# /data/3306/mysqld start

9.登入数据库

# mysql -S /data/3306/mysql.sock

10.配置第二个实例

# cp /data/3306/my.cnf /data/3307/my.cnf
# cp /data/3306/mysqld /data/3307/mysqld
//server-id 改为2
server-id = 2
# sed -i ‘s#3306#3307#g‘ /data/3307/my.cnf
# sed -i ‘s#3306#3307#g‘ /data/3307/mysqld
# chown -R mysql.mysql /data/
# /usr/local/mysql/scripts/mysql_install_db  --basedir=/usr/local/mysql/ --datadir=/data/3307/data/ --user=mysql
# /data/3307/mysqld start
# mysql -S /data/3307/mysql.sock

部署mysql多实例

原文：http://jcat2008.blog.51cto.com/320366/1773754