MySQL 8.0 安装脚本

1 下载安装包

首先，我们下载MySQL 8.0.25的安装包：

wget https://downloads.mysql.com/archives/get/p/23/file/mysql-8.0.25-linux-glibc2.12-x86_64.tar.xz

再解压这个xz文件

xz -d mysql-8.0.25-linux-glibc2.12-x86_64.tar.xz

2 编辑配置文件模板

vim my.cnf

加入如下内容：

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

[mysqld]
port    = 3306
socket  = /tmp/mysql.sock

##  dir set
datadir           = /data/mysql/data
innodb_data_home_dir   = /data/mysql/data
innodb_log_group_home_dir = /data/mysql/data
log-bin           = /data/mysql/binlog/mysql-bin
log_bin_index             = /data/mysql/binlog/mysql-bin.index  
relay-log         = /data/mysql/binlog/mysql-relay-bin
tmpdir            = /data/mysql/tmpdir
slow_query_log_file   = /data/mysql/log/mysql-slow.log
general_log_file   = /data/mysql/log/mysql-general.log
log-error         = /data/mysql/log/mysql.err

## slave and binlog
server-id = 6666            #   
skip-slave-start = 0        #
read_only = 0           #
binlog_format = row             
log-slave-updates = 1
master_info_repository = table
relay_log_info_repository = table
relay_log_purge = 1
relay_log_recovery = 1
sync_binlog = 100                   # !!!

binlog_cache_size = 1M
expire_logs_days = 30
log_bin_trust_function_creators = 1         
slave_net_timeout=60                
#binlog_error_action="IGNORE_ERROR"     

innodb_autoinc_lock_mode=1          

## 
back_log = 200
bulk_insert_buffer_size = 8M            
#character-set-server = utf8
lower_case_table_names = 1              #  1：不区分

## 基线
local-infile = off
skip-networking = off
skip-name-resolve = on 

## connect
max_allowed_packet = 32M
max_connect_errors = 1000
max_connections = 3000
wait_timeout = 3600             # 关闭 非交互 连接之前等待活动的秒数 default:8h
interactive_timeout = 3600          # 关闭 交互式 连接之前等待活动的秒数 default:8h

table_open_cache = 4096
thread_cache_size =  64
thread_stack = 192K
transaction-isolation = REPEATABLE-READ     # 
pid-file = mysql.pid

## slow
slow_query_log = 1              
long_query_time = 1
log-slow-admin-statements
log_queries_not_using_indexes = 0
slow_launch_time = 1
read_buffer_size = 4M               
read_rnd_buffer_size = 8M           
sort_buffer_size = 8M
join_buffer_size = 32M
tmp_table_size = 128M
max_heap_table_size = 128M

default-storage-engine = innodb
explicit_defaults_for_timestamp = on           

## innodb
innodb_buffer_pool_size = 1G                    
innodb_max_dirty_pages_pct = 80         
innodb_thread_concurrency = 8           
innodb_buffer_pool_instances = 1        
innodb_flush_log_at_trx_commit = 2      
innodb_read_io_threads = 8          
innodb_write_io_threads = 4         
innodb_io_capacity = 1000
innodb_io_capacity_max = 2000
innodb_lru_scan_depth = 1024
innodb_use_native_aio = 1
innodb_flush_neighbors = 1
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_dump_at_shutdown = 1

innodb_data_file_path=ibdata:1G:autoextend
innodb_log_files_in_group = 3
innodb_log_file_size = 2G
innodb_file_per_table = 1 

innodb_flush_method = O_DIRECT
innodb_strict_mode = 1
innodb_lock_wait_timeout = 30
innodb_log_buffer_size = 16M
innodb_adaptive_flushing = 1
innodb_change_buffering = all
innodb_purge_threads = 4            
innodb_purge_batch_size = 300           

innodb_old_blocks_time = 1
innodb_fast_shutdown = 0
performance_schema = 1
innodb_print_all_deadlocks = 1
innodb_sort_buffer_size = 4M 

innodb_page_size = 16k
gtid_mode=on
enforce_gtid_consistency=on     

table_open_cache_instances=16
binlog_rows_query_log_events=1      

slave_parallel_workers = 0          # 多线程复制线程数
#slave_parallel_type=LOGICAL_CLOCK      
#binlog_group_commit_sync_delay = 500000  
#binlog_group_commit_sync_no_delay_count =12  

## pasword
default_password_lifetime=0                     # 0密码永不过期，N n天过期

[mysqldump]
quick
max_allowed_packet = 32M

[mysql]
no-auto-rehash
prompt=\p@\d>\_

[mysqld_safe]
open-files-limit = 28192

[mysqlhotcopy]
interactive-timeout

3 配置启动脚本

vim mysql.server

加入如下内容：

#!/bin/sh


basedir=
datadir=/data/mysql/data
confdir=/data/mysql/conf

# Default value, in seconds, afterwhich the script should timeout waiting
# for server start. 
# Value here is overriden by value in my.cnf. 
# 0 means don't wait at all
# Negative numbers mean to wait indefinitely
service_startup_timeout=900

# Lock directory for RedHat / SuSE.
lockdir='/var/lock/subsys'
lock_file_path="$lockdir/mysql"

# The following variables are only set for letting mysql.server find things.

# Set some defaults
mysqld_pid_file_path=
if test -z "$basedir"
then
  basedir=/usr/local/mysql
  bindir=/usr/local/mysql/bin
  if test -z "$datadir"
  then
    datadir=/usr/local/mysql/data
  fi
  sbindir=/usr/local/mysql/bin
  libexecdir=/usr/local/mysql/bin
else
  bindir="$basedir/bin"
  if test -z "$datadir"
  then
    datadir="$basedir/data"
  fi
  sbindir="$basedir/sbin"
  libexecdir="$basedir/libexec"
fi

# datadir_set is used to determine if datadir was set (and so should be
# *not* set inside of the --basedir= handler.)
datadir_set=

#
# Use LSB init script functions for printing messages, if possible
#
lsb_functions="/lib/lsb/init-functions"
if test -f $lsb_functions ; then
  . $lsb_functions
else
  log_success_msg()
  {
    echo " SUCCESS! $@"
  }
  log_failure_msg()
  {
    echo " ERROR! $@"
  }
fi

PATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin"
export PATH

mode=$1    # start or stop

[ $# -ge 1 ] && shift


other_args="$*"   # uncommon, but needed when called from an RPM upgrade action
           # Expected: "--skip-networking --skip-grant-tables"
           # They are not checked here, intentionally, as it is the resposibility
           # of the "spec" file author to give correct arguments only.

case `echo "testing\c"`,`echo -n testing` in
    *c*,-n*) echo_n=   echo_c=     ;;
    *c*,*)   echo_n=-n echo_c=     ;;
    *)       echo_n=   echo_c='\c' ;;
esac

parse_server_arguments() {
  for arg do
    case "$arg" in
      --basedir=*)  basedir=`echo "$arg" | sed -e 's/^[^=]*=//'`
                    bindir="$basedir/bin"
        if test -z "$datadir_set"; then
          datadir="$basedir/data"
        fi
        sbindir="$basedir/sbin"
        libexecdir="$basedir/libexec"
        ;;
      --datadir=*)  datadir="/data/mysql/data"
        datadir_set=1
  ;;
      --pid-file=*) mysqld_pid_file_path=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
      --service-startup-timeout=*) service_startup_timeout=`echo "$arg" | sed -e 's/^[^=]*=//'` ;;
    esac
  done
}

wait_for_pid () {
  verb="$1"           # created | removed
  pid="$2"            # process ID of the program operating on the pid-file
  pid_file_path="$3" # path to the PID file.

  i=0
  avoid_race_condition="by checking again"

  while test $i -ne $service_startup_timeout ; do

    case "$verb" in
      'created')
        # wait for a PID-file to pop into existence.
        test -s "$pid_file_path" && i='' && break
        ;;
      'removed')
        # wait for this PID-file to disappear
        test ! -s "$pid_file_path" && i='' && break
        ;;
      *)
        echo "wait_for_pid () usage: wait_for_pid created|removed pid pid_file_path"
        exit 1
        ;;
    esac

    # if server isn't running, then pid-file will never be updated
    if test -n "$pid"; then
      if kill -0 "$pid" 2>/dev/null; then
        :  # the server still runs
      else
        # The server may have exited between the last pid-file check and now.  
        if test -n "$avoid_race_condition"; then
          avoid_race_condition=""
          continue  # Check again.
        fi

        # there's nothing that will affect the file.
        log_failure_msg "The server quit without updating PID file ($pid_file_path)."
        return 1  # not waiting any more.
      fi
    fi

    echo $echo_n ".$echo_c"
    i=`expr $i + 1`
    sleep 1

  done

  if test -z "$i" ; then
    log_success_msg
    return 0
  else
    log_failure_msg
    return 1
  fi
}

# Get arguments from the my.cnf file,
# the only group, which is read from now on is [mysqld]
if test -x "$bindir/my_print_defaults";  then
  print_defaults="$bindir/my_print_defaults"
else
  # Try to find basedir in /etc/my.cnf
  conf=/etc/my.cnf
  print_defaults=
  if test -r $conf
  then
    subpat='^[^=]*basedir[^=]*=\(.*\)$'
    dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf`
    for d in $dirs
    do
      d=`echo $d | sed -e 's/[   ]//g'`
      if test -x "$d/bin/my_print_defaults"
      then
        print_defaults="$d/bin/my_print_defaults"
        break
      fi
    done
  fi

  # Hope it's in the PATH ... but I doubt it
  test -z "$print_defaults" && print_defaults="my_print_defaults"
fi

#
# Read defaults file from 'basedir'.   If there is no defaults file there
# check if it's in the old (depricated) place (datadir) and read it from there
#

extra_args=""
if test -r "$basedir/my.cnf"
then
  extra_args="-e $basedir/my.cnf"
fi

parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server`

#
# Set pid file if not given
#
if test -z "$mysqld_pid_file_path"
then
  mysqld_pid_file_path=$datadir/`hostname`.pid
else
  case "$mysqld_pid_file_path" in
    /* ) ;;
    * )  mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;;
  esac
fi

case "$mode" in
  'start')
    # Start daemon

    # Safeguard (relative paths, core dumps..)
    cd $basedir

    echo $echo_n "Starting MySQL"
    if test -x $bindir/mysqld_safe
    then
      # Give extra arguments to mysqld with the my.cnf file. This script
      # may be overwritten at next upgrade.
      $bindir/mysqld_safe --defaults-file=$confdir/my.cnf --datadir="$datadir" --pid-file="$mysqld_pid_file_path" $other_args >/dev/null &
      wait_for_pid created "$!" "$mysqld_pid_file_path"; return_value=$?

      # Make lock for RedHat / SuSE
      if test -w "$lockdir"
      then
        touch "$lock_file_path"
      fi

      exit $return_value
    else
      log_failure_msg "Couldn't find MySQL server ($bindir/mysqld_safe)"
    fi
    ;;

  'stop')
    # Stop daemon. We use a signal here to avoid having to know the
    # root password.

    if test -s "$mysqld_pid_file_path"
    then
      # signal mysqld_safe that it needs to stop
      touch "$mysqld_pid_file_path.shutdown"

      mysqld_pid=`cat "$mysqld_pid_file_path"`

      if (kill -0 $mysqld_pid 2>/dev/null)
      then
        echo $echo_n "Shutting down MySQL"
        kill $mysqld_pid
        # mysqld should remove the pid file when it exits, so wait for it.
        wait_for_pid removed "$mysqld_pid" "$mysqld_pid_file_path"; return_value=$?
      else
        log_failure_msg "MySQL server process #$mysqld_pid is not running!"
        rm "$mysqld_pid_file_path"
      fi

      # Delete lock for RedHat / SuSE
      if test -f "$lock_file_path"
      then
        rm -f "$lock_file_path"
      fi
      exit $return_value
    else
      log_failure_msg "MySQL server PID file could not be found!"
    fi
    ;;

  'restart')
    # Stop the service and regardless of whether it was
    # running or not, start it again.
    if $0 stop  $other_args; then
      $0 start $other_args
    else
      log_failure_msg "Failed to stop running server, so refusing to try to start."
      exit 1
    fi
    ;;

  'reload'|'force-reload')
    if test -s "$mysqld_pid_file_path" ; then
      read mysqld_pid <  "$mysqld_pid_file_path"
      kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL"
      touch "$mysqld_pid_file_path"
    else
      log_failure_msg "MySQL PID file could not be found!"
      exit 1
    fi
    ;;
  'status')
    # First, check to see if pid file exists
    if test -s "$mysqld_pid_file_path" ; then 
      read mysqld_pid < "$mysqld_pid_file_path"
      if kill -0 $mysqld_pid 2>/dev/null ; then 
        log_success_msg "MySQL running ($mysqld_pid)"
        exit 0
      else
        log_failure_msg "MySQL is not running, but PID file exists"
        exit 1
      fi
    else
      # Try to find appropriate mysqld process
      mysqld_pid=`pidof $libexecdir/mysqld`

      # test if multiple pids exist
      pid_count=`echo $mysqld_pid | wc -w`
      if test $pid_count -gt 1 ; then
        log_failure_msg "Multiple MySQL running but PID file could not be found ($mysqld_pid)"
        exit 5
      elif test -z $mysqld_pid ; then 
        if test -f "$lock_file_path" ; then 
          log_failure_msg "MySQL is not running, but lock file ($lock_file_path) exists"
          exit 2
        fi 
        log_failure_msg "MySQL is not running"
        exit 3
      else
        log_failure_msg "MySQL is running but PID file could not be found"
        exit 4
      fi
    fi
    ;;
    *)
      # usage
      basename=`basename "$0"`
      echo "Usage: $basename  {start|stop|restart|reload|force-reload|status}  [ MySQL server options ]"
      exit 1
    ;;
esac

exit 0

4 配置MySQL安装脚本

新建脚本

vim install_mysql.sh

加入如下内容：

#!/bin/bash

# 解压
if [ -d "/usr/local/mysql" ];then
  echo "/usr/local/mysql文件夹已经存在，请确定是否安装了MySQL"
  exit
fi
echo "正在解压压缩包"
tar xf mysql-8.0.25-linux-glibc2.12-x86_64.tar
mv mysql-8.0.25-linux-glibc2.12-x86_64 /usr/local/mysql
echo "压缩包解压完毕"

# 创建MySQL相关目录
if [ -d "/data/mysql/" ];then
  echo "/data/mysql文件夹已经存在，请确定是否安装了MySQL"
  exit
fi
mkdir /data/mysql/{binlog,data,log,tmpdir,conf} -p

# 判断是否有MySQL进程
mysql_pid=`ps -ef|grep mysqld|wc -l`
if [ $mysql_pid -eq 1 ];then
  echo "MySQL进程没有运行"
else
  echo "有MySQL进程运行，请检查"
  exit
fi

#创建MySQL用户
mysql_user=`cat /etc/passwd|grep -w mysql|wc -l`

if [ $mysql_user -eq 1 ];then
  echo "MySQL用户已经存在"
else
  echo "MySQL用户不存在，开始添加MySQL用户"
  groupadd mysql
  useradd -g mysql mysql
  echo "添加MySQL用户成功"
fi

# 修改权限
chown -R mysql.mysql /data/mysql/
chown -R mysql.mysql /usr/local/mysql

# 增加配置文件
cp ./my.cnf /data/mysql/conf/

# 初始化
echo "开始初始化"
/usr/local/mysql/bin/mysqld --defaults-file=/data/mysql/conf/my.cnf --user=mysql --initialize

# 判断初始化是否成功
mysql_init=`cat /data/mysql/log/mysql.err|grep -i "root@localhost:"|wc -l`
if [ $mysql_init -eq 1 ];then
  echo "mysql 初始化成功"
else
  echo "mysql 初始化失败"
  exit
fi

# 获取临时密码
temp_pwd=$(grep 'temporary password' /data/mysql/log/mysql.err)
pwd=${temp_pwd##* }
echo "临时密码是：${pwd}"

# 配置启动脚本
if [ ! -f "/etc/init.d/mysql.server" ];then
  cp mysql.server /etc/init.d/ -rf
  chmod 700 /etc/init.d/mysql.server
fi

# 启动mysql
/etc/init.d/mysql.server start

# 增加环境变量
mysql_path=`grep 'export PATH=$PATH:/usr/local/mysql/bin' /etc/profile|wc -l`
if [ $mysql_path -eq 0 ];then
  echo "export PATH=\$PATH:/usr/local/mysql/bin" >> /etc/profile
  source /etc/profile
fi

# 通过临时密码登录MySQL，并修改密码
mysql -uroot -p${pwd} --connect-expired-password -e "alter user user() identified by 'martin';"
echo "MySQL8.0.25 安装完成"

5 使用脚本安装MySQL

如果要安装MySQL，直接执行脚本就行

sh install_mysql.sh

MySQL相关命令所在的目录是：/usr/local/mysql/bin

MySQL数据目录是/data/mysql/data/

Binlog存放的目录是/data/mysql/binlog/

错误日志，慢查询日志存放的目录是/data/mysql/log

配置文件是：/data/mysql/conf/my.cnf

root密码默认是：martin（要修改默认密码的话，在脚本83行）