mysql5.5.32配置多实例

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pkill mysqld

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[root@db01 ~]# tree /data/
/data/
├── 3306
│   ├── data
│   ├── my.cnf
│   └── mysql
└── 3307
    ├── data
    ├── my.cnf
    └── mysql

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[client]
port = 3306
socket = /data/3306/mysql.sock

[mysql]
no-auto-rehash

[mysqld]
user = mysql
port = 3306
socket = /data/3306/mysql.sock
basedir = /application/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
#default_table_type = InnoDB
thread_stack = 192K
#transaction_isolation = READ-COMMITTED
tmp_table_size = 2M
max_heap_table_size = 2M
long_query_time = 1
pid-file = /data/3306/mysql.pid
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
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

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#!/bin/sh

#init
port=3306
mysql_user="root"
mysql_pwd="root"
CmdPath="/application/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

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chown -R mysql.mysql /data

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find /data/ -type f -name mysql | xargs chmod +x

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/application/mysql/scripts/mysql_install_db --basedir=/application/mysql --datadir=/data/3306/data --user=mysql
/application/mysql/scripts/mysql_install_db --basedir=/application/mysql --datadir=/data/3307/data --user=mysql

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/data/3306/mysql start
/data/3307/mysql start