MySQL8.4一主一从环境搭建实现

ls -lsa /soft

groupadd mysql
useradd -r -s /bin/false -g mysql mysql

mkdir -p /mysql/data/3306/data
mkdir -p /mysql/backup/backup-db

chown -r mysql:mysql /mysql

[mysqld]
server-id=573306
port=3306
basedir=/mysql/app/mysql
datadir=/mysql/data/3306/data
log-error=/mysql/log/3306/superdb-error.log
socket=/mysql/data/3306/mysql.sock
pid-file=/mysql/data/3306/mysql.pid
character-set-server=utf8mb4
lower_case_table_names=1
innodb_log_file_size=1g
default-storage-engine=innodb
mysql_native_password=on
secure_file_priv=''

[mysql]
prompt=(\\u@\\h)[\\d]>\\_

[client]
port=3306
default-character-set=utf8mb4

cd /soft
ls
xz -d mysql-8.4.0-linux-glibc2.17-x86_64.tar.xz
tar xvf mysql-8.4.0-linux-glibc2.17-x86_64.tar
mv mysql-8.4.0-linux-glibc2.17-x86_64 /mysql/app/mysql

/mysql/app/mysql/bin/mysqld  --defaults-file=/mysql/data/3306/my.cnf  --initialize --user=mysql --basedir=/mysql/app/mysql --datadir=/mysql/data/3306/data

/mysql/app/mysql/bin/mysqld_safe --defaults-file=/mysql/data/3306/my.cnf  &

ln -sf /mysql/data/3306/mysql.sock /tmp/mysql.sock

path=$path:/mysql/app/mysql/bin:$home/bin
export mysql_ps1="(\u@\h:\p)[\d]>"

tail -fn300 /mysql/log/3306/superdb-error.log

defaultmysqlpwd=`grep 'a temporary password' /mysql/log/3306/superdb-error.log |awk -f "root@localhost: " '{ print $2}' |tail -n1`
mysql -uroot -p"${defaultmysqlpwd}" --connect-expired-password <<eof
alter user 'root'@'localhost' identified by 'root@2024';
eof
sleep 1

mysql -uroot -p

create user 'root'@'%' identified  by 'root@2024';
grant all privileges on *.* to 'root'@'%';
flush privileges;
exit

#!/bin/sh
# copyright abandoned 1996 tcx datakonsult ab & monty program kb & detron hb
# this file is public domain and comes with no warranty of any kind

# mysql daemon start/stop script.

# usually this is put in /etc/init.d (at least on machines sysv r4 based
# systems) and linked to /etc/rc3.d/s99mysql and /etc/rc0.d/k01mysql.
# when this is done the mysql server will be started when the machine is
# started and shut down when the systems goes down.

# comments to support chkconfig on redhat linux
# chkconfig: 2345 64 36
# description: a very fast and reliable sql database engine.

# comments to support lsb init script conventions
### begin init info
# provides: mysql
# required-start: $local_fs $network $remote_fs
# should-start: ypbind nscd ldap ntpd xntpd
# required-stop: $local_fs $network $remote_fs
# default-start:  2 3 4 5
# default-stop: 0 1 6
# short-description: start and stop mysql
# description: mysql is a very fast and reliable sql database engine.
### end init info
 
# if you install mysql on some other places than /usr/local/mysql, then you
# have to do one of the following things for this script to work:
#
# - run this script from within the mysql installation directory
# - create a /etc/my.cnf file with the following information:
#   [mysqld]
#   basedir=<path-to-mysql-installation-directory>
# - add the above to any other configuration file (for example ~/.my.ini)
#   and copy my_print_defaults to /usr/bin
# - add the path to the mysql-installation-directory to the basedir variable
#   below.
#
# if you want to affect other mysql variables, you should make your changes
# in the /etc/my.cnf, ~/.my.cnf or other mysql configuration files.

# if you change base dir, you must also change datadir. these may get
# overwritten by settings in the mysql configuration files.

basedir=/mysql/app/mysql
datadir=/mysql/data/3306/data

# 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=/mysql/data/3306/mysql.pid
if test -z "$basedir"
then
  basedir=/mysql/app/mysql
  bindir=/mysql/app/mysql/bin
  if test -z "$datadir"
  then
    datadir=/mysql/data/3306/data
  fi
  sbindir=/mysql/app/mysql/bin
  libexecdir=/mysql/app/mysql/bin
else
  bindir="$basedir/bin"
  if test -z "$datadir"
  then
    datadir="/mysql/app/3306/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:/mysql/app/mysql/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="$basedir/libexec"
        ;;
      --datadir=*)  datadir=`echo "$arg" | sed -e 's/^[^=]*=//'`
		    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=/mysql/data/3306/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 "/mysql/data/3306/my.cnf"
then
  extra_args="-e /mysql/data/3306/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.
      $bindir/mysqld_safe --defaults-file=/mysql/data/3306/my.cnf --datadir="$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

chkconfig --list
chkconfig --add mysqld
chkconfig --list

create database db01;
use db01;

create table dept
( deptno int unsigned auto_increment primary key comment '部门编号',
dname  varchar(15) comment '部门名称'  ,
loc  varchar(50) comment '部门所在位置'
)engine = innodb default charset=utf8mb4 comment='员工部门表';

create table emp(
empno int unsigned auto_increment primary key comment '雇员编号',
ename varchar(15)  comment '雇员姓名' ,
job varchar(10)   comment '雇员职位'  ,
mgr int unsigned  comment '雇员对应的领导的编号',
hiredate  date    comment '雇员的雇佣日期' ,
sal decimal(7,2)  comment '雇员的基本工资' ,
comm  decimal(7,2)   comment '奖金'  ,
deptno int unsigned   comment '所在部门' ,
foreign key(deptno) references dept(deptno)
)engine = innodb default charset =utf8mb4 comment='雇员信息表';

create table salgrade
(
grade int comment '工资等级',
losal int comment '此等级的最低工资',
hisal int comment '此等级的最高工资'
)engine=innodb default charset=utf8mb4 comment='工资等级表';

alter table salgrade add constraint pk_salgrade_primary primary key (grade,losal,hisal);

create table bonus
(   ename  varchar(10) comment '雇员姓名',
job    varchar(9) comment '雇员职位',
sal    decimal(7,2) comment '雇员工资',
comm   decimal(7,2) comment '雇员奖金'
)engine=innodb default charset=utf8mb4 comment='雇员奖金表' ;

alter table bonus add constraint pk_bonus_primary primary key (ename,job);

show full columns from emp;
select * from information_schema.tables where table_schema='db01' and table_name='emp';
select * from information_schema.columns where table_schema='db01' and table_name='emp';

insert into dept values (10,'accounting','new york');
insert into dept values (20,'research','dallas');
insert into dept values (30,'sales','chicago');
insert into dept values (40,'operations','boston');

insert into emp values    (7369,'smith','clerk',7902,'1980-12-17',800,null,20);
insert into emp values    (7499,'allen','salesman',7698,'1981-2-20',1600,300,30);
insert into emp values    (7521,'ward','salesman',7698,'1981-2-22',1250,500,30);
insert into emp values    (7566,'jones','manager',7839,'1981-4-2',2975,null,20);
insert into emp values    (7654,'martin','salesman',7698,'1981-9-28',1250,1400,30);
insert into emp values    (7698,'blake','manager',7839,'1981-5-1',2850,null,30);
insert into emp values    (7782,'clark','manager',7839,'1981-6-9',2450,null,10);
insert into emp values    (7788,'scott','analyst',7566,'87-7-13',3000,null,20);
insert into emp values    (7839,'king','president',null,'1981-11-17',5000,null,10);
insert into emp values    (7844,'turner','salesman',7698,'1981-9-8',1500,0,30);
insert into emp values    (7876,'adams','clerk',7788,'87-7-13',1100,null,20);
insert into emp values    (7900,'james','clerk',7698,'1981-12-3',950,null,30);
insert into emp values    (7902,'ford','analyst',7566,'1981-12-3',3000,null,20);
insert into emp values    (7934,'miller','clerk',7782,'1982-1-23',1300,null,10);

insert into salgrade values (1,700,1200);
insert into salgrade values (2,1201,1400);
insert into salgrade values (3,1401,2000);
insert into salgrade values (4,2001,3000);
insert into salgrade values (5,3001,9999);
commit;

show variables like '%server_id%';

create user 'repl'@'%' identified by 'root@3306';
grant replication slave on *.* to 'repl'@'%';

mysql -u repl -p -h 192.168.80.50

show binary log status;

(root@localhost:mysql.sock)[(none)]>show binary log status;
+---------------+----------+--------------+------------------+-------------------+
| file          | position | binlog_do_db | binlog_ignore_db | executed_gtid_set |
+---------------+----------+--------------+------------------+-------------------+
| binlog.000001 |    11518 |              |                  |                   |
+---------------+----------+--------------+------------------+-------------------+
1 row in set (0.00 sec)

cd /mysql/backup/backup-db
mysqldump  -uroot  -p  --all-databases  --master-data=1 > dbfulldump.db

mkdir -p /mysql/backup/backup-db

scp -r /mysql/backup/backup-db/dbfulldump.db root@192.168.80.51:/mysql/backup/backup-db

show variables like '%server%';
+---------------------------------+--------------------------------------+
| variable_name                   | value                                |
+---------------------------------+--------------------------------------+
| character_set_server            | utf8mb4                              |
| collation_server                | utf8mb4_0900_ai_ci                   |
| immediate_server_version        | 999999                               |
| innodb_dedicated_server         | off                                  |
| innodb_ft_server_stopword_table |                                      |
| original_server_version         | 999999                               |
| server_id                       | 513306                               |
| server_id_bits                  | 32                                   |
| server_uuid                     | 81c80be9-10d4-11ef-b4df-000c290e14ee |
+---------------------------------+--------------------------------------+
9 rows in set (0.00 sec)

show databases;
+--------------------+
| database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

change replication source to source_host='192.168.80.50', source_log_file='binlog.000001', source_log_pos=11518, source_port=3306, source_user='repl', source_password='root@3306';

start replica;

show replica status \g
show processlist \g
select * from db01.emp;
select * from db01.dept;

set @@global.enforce_gtid_consistency = warn;
set @@global.enforce_gtid_consistency = on;
set @@global.gtid_mode = off_permissive;
set @@global.gtid_mode = on_permissive;
show status like 'ongoing_anonymous_transaction_count';
set @@global.gtid_mode = on;

set @@global.enforce_gtid_consistency = warn;
set @@global.enforce_gtid_consistency = on;
set @@global.gtid_mode = off_permissive;
set @@global.gtid_mode = on_permissive;
show status like 'ongoing_anonymous_transaction_count';
set @@global.gtid_mode = on;
stop replica;
change replication source to source_auto_position = 1 ;
start replica;

gtid_mode = on
enforce_gtid_consistency = on

create table t_city_list(
id bigint auto_increment,
country varchar(64),
city varchar(64),
constraint pk_t_city_list_id primary key(id)
);

insert into t_city_list(country,city) values ('中国','北京');
insert into t_city_list(country,city) values ('中国','广州');
insert into t_city_list(country,city) values ('中国','深圳');
insert into t_city_list(country,city) values ('中国','香港');
insert into t_city_list(country,city) values ('中国','上海');
insert into t_city_list(country,city) values ('日本','东京');
insert into t_city_list(country,city) values ('日本','大阪');
commit;

select * from db01.t_city_list

select * from t_city_list;

insert into t_city_list(country,city) values ('中国','中山');
insert into t_city_list(country,city) values ('中国','珠海');

select * from t_city_list;

set global read_only=on;
set global super_read_only=on;

show replica status \g;

select @@global.gtid_executed;
+-------------------------------------------+
| @@global.gtid_executed                    |
+-------------------------------------------+
| e9adc552-10d5-11ef-81ba-000c2940f616:1-10 |
+-------------------------------------------+
1 row in set (0.00 sec)

show global variables like 'gtid_%';
+----------------------------------+-------------------------------------------+
| variable_name                    | value                                     |
+----------------------------------+-------------------------------------------+
| gtid_executed                    | e9adc552-10d5-11ef-81ba-000c2940f616:1-10 |
| gtid_executed_compression_period | 0                                         |
| gtid_mode                        | on                                        |
| gtid_owned                       |                                           |
| gtid_purged                      |                                           |
+----------------------------------+-------------------------------------------+
5 rows in set (0.00 sec)

stop replica;
reset replica all;

set global read_only=off;
set global super_read_only=off;

change master to master_host='192.168.80.51',master_port=3306, master_user='repl', master_password='root@3306',master_auto_position=1; #mysql5.7/mysql8.0

change replication source to source_host='192.168.80.51',source_port=3306,source_user='repl', source_password='root@3306',source_auto_position=1; #mysql8.4

start replica;

show replica status \g;

insert into db01.t_city_list(country,city) values ('中国','兰州');

select * from db01.t_city_list;