MySQL多实例配置文件及启动文件

-----------MySQL多实例配置文件

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[root@db01/]# cat /data/3307/my.cnf

[client]

port            = 3307      #<==端口号，可修改

socket          = /data/3307/mysql.sock

[mysql]

no-auto-rehash

[mysqld]

user   = mysql          #<==所属用户，根据实际情况而定

port   = 3307          #<==端口号，可修改

socket = /data/3307/mysql.sock  #<== 指定socket文件位置

basedir = /application/mysql    #<== 安装程序目录

datadir = /data/3307/data     #<== mysql数据文件目录 

open_files_limit    = 1024   #<== 文件描述符限制

back_log = 600           #<== 系统预处理等待队列连接数量

max_connections = 800       #<== 最大连接数

max_connect_errors = 3000     #<== 最大错误数

table_cache = 614         #<== 表缓存

external-locking = FALSE      #<== 外部锁

max_allowed_packet =8M       #<== 最大允许的包大小

sort_buffer_size = 1M       #<== 排序缓冲大小

join_buffer_size = 1M       #<== 连接缓冲大小

thread_cache_size = 100      #<== 线程缓存数量

thread_concurrency = 2       #<== 线程并发量

query_cache_size = 2M       #<== 请求缓存大小

query_cache_limit = 1M       #<== 请求缓存限制大小

query_cache_min_res_unit = 2k   #<== 请求缓存最小保留单元大小

#default_table_type = InnoDB    

thread_stack = 192K        #<== 线程数大小

#transaction_isolation = READ-COMMITTED

tmp_table_size = 2M        #<== 临时表大小

max_heap_table_size = 2M      #<== 最大堆表大小

#long_query_time = 1        #<== 长请求时间1s

#log_long_format

#log-error = /data/3307/error.log #<== 错误日志

#log-slow-queries = /data/3307/slow.log     #<== man查询日志

pid-file = /data/3307/mysql.pid   #<== pid文件位置

#log-bin = /data/3307/mysql-bin   #<== binlog开启及位置

relay-log = /data/3307/relay-bin  #<== relaylog开启及位置

relay-log-info-file = /data/3307/relay-log.info #<== reloylog信息文件

binlog_cache_size = 1M       #<== binlog缓存大小

max_binlog_cache_size = 1M     #<== 最大binlog缓存大小

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

#myisam_sort_buffer_size = 1M

#myisam_max_sort_file_size = 10G

#myisam_max_extra_sort_file_size = 10G

#myisam_repair_threads = 1

#myisam_recover

lower_case_table_names = 1       #<== 忽略表名大小写

skip-name-resolve          #<== 跳过名称解析

slave-skip-errors = 1032,1062    #<== 主从同步，从库错误忽略代码列表 

replicate-ignore-db=mysql      #<== 复制忽略数据库：mysql

server-id = 3            #<== 设置server-id  主从复制不能一样

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/3307/mysql_3307.err   #<== 日志文件

pid-file=/data/3307/mysqld.pid 

------------------------------------------------------------------------------------------------------------------------------------

-----------mysql多实例启动文件

[root@db01/]# cat /data/3308/mysql

#!/bin/sh

################################################

#this scripts iscreated by tudou at 2016-06-09

#tudou QQ:1097857032 1+1=3

#blog:https://blog.51cto.com/user_index.php?action=addblog_new

################################################

#init

port=3307

mysql_user="root"

mysql_pwd="123456"    #<==设定的密码 

CmdPath="/application/mysql/bin"    

mysql_sock="/data/${port}/mysql.sock"   #<== 进入多实例数据库需要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

######################################################################################

-----------通过以上配置启动mysql数据库后生成的文件如下：

mysql-bin.000001   #<== mysql数据库的操作日志（加密）

mysql-bin.index    #<== mysql数据库操作日志的索引文件

mysqld.pid       #<== 3307数据库的进程号文件

mysql_3307.err    #<== 3307的错误日志·文件

mysql.sock       #<== 启动服务的套接字文件

注意：当数据强制关机会导致状态显示启动，实际并没有运行的状态，遇见此种状态将mysql.sock文件改革名字，然后重新启动数据库即可，它会生成新的mysql.sock文件