mysql自动安装脚本（快速部署mysql）

mysql_install - 适用于生产环境单实例快速部署

MySQL8.0 自动安装脚本

mysql8_install.sh（执行前修改一下脚本里的配置参数，改成你自己的）（博客末尾）

my_test.cnf（博客末尾）（这个是模板文件，基本上不用改，mysql8_install.sh脚本执行的时候会自动替换里面的port，server_id，innodb_buffer_pool_size等）

mysql-8.0.32-linux-glibc2.12-x86_64.tar.xz

shell> wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.32-linux-glibc2.12-x86_64.tar.xz

三个文件放在同一个目录下，例如/root/soft/

---

Centos8 注意事项

shell> yum install jemalloc -y

内存管理器jemalloc库文件名字已经变更，需要建立一个软连接

shell> ln -s /usr/lib64/libjemalloc.so.2 /usr/lib64/libjemalloc.so

---

1）安装并启动mysql进程（主和从库都执行）

shell> /bin/bash mysql8_install.sh

注：my.cnf配置文件默认在/etc/目录下，文件名是以你的数据库名命名，例my_test.cnf，mysql.sock在/tmp目录下。

数据存放在/data/mysql/目录下。

2）配置主从复制（从库执行）

shell> /bin/bash mysql8_install.sh repl

3）配置组复制（先在Primary节点上执行，再到Secondary节点上执行）

注：先把3个节点MySQL实例启动后再开始搭建mgr，同时修改脚本里的ip地址和端口和hosts对应的主机名和地址

shell> /bin/bash mysql8_install.sh mgr

注：配置成功后，会在data数据目录下生成mysqld-auto.cnf配置文件。
脚本：
mysql8_install.sh

#!/bin/bash
# 适用于生产环境单实例快速部署，操作系统CentOS 7。

echo "正在安装MySQL软件......."

useradd mysql
useradd nagios
useradd zabbix

sleep 2

######配置参数######
mysql8_version=mysql-8.0.32-linux-glibc2.12-x86_64.tar.xz
mysql8_version_dir=mysql-8.0.32-linux-glibc2.12-x86_64

################################主从复制配置################################
######同步复制用户######
repl_user=repl
repl_passwd=sysrepl
#######################

######root密码######
root_passwd=123456
#######################

######DBA管理用户######
dba_user=admin
dba_passwd=hechunyang
#######################

######8.0克隆用户######
clone_user=clone_user
clone_passwd=123456
#######################

################################mgr组复制配置################################

######修改hosts文件######
cat << EOF >> /etc/hosts

192.168.71.11   mgr1
192.168.71.12   mgr2
192.168.71.13   mgr3

EOF
#######################

mysql_port=3306                 # 数据库实例对外请求端口
primary_ip=192.168.71.11        # 每个mgr节点IP
secondary1_ip=192.168.71.12     # 每个mgr节点IP
secondary2_ip=192.168.71.13     # 每个mgr节点IP

primary_port=33061        # mgr primary节点通讯端口
secondary1_port=33062     # mgr secondary1节点通讯端口
secondary2_port=33063     # mgr secondary2节点通讯端口

local_ip=192.168.71.11    # 每个mgr节点IP不相同
local_port=33061          # 每个mgr节点通讯端口port不相同

################################以下代码不用修改################################
if [ "$1" = "repl" ]
then
while true
do
	read -t 30 -p "输入你的主库IP:  " master_ip
	read -t 30 -p "输入你的主库端口号:  " master_port
	if [[ -z $master_ip || -z $master_port ]]
	then
		continue
	else
		echo ""
		echo "主库IP是： $master_ip"
		echo "主库端口号是： $master_port"
		break 
	fi
done

/usr/local/mysql/bin/mysql -h127.0.0.1 -u"$dba_user" -p"$dba_passwd" -P"$master_port" --connect-expired-password -e "CHANGE MASTER TO MASTER_HOST='$master_ip',MASTER_USER='$repl_user',MASTER_PASSWORD='$repl_passwd',MASTER_PORT=$master_port,MASTER_AUTO_POSITION = 1,MASTER_CONNECT_RETRY=10; START SLAVE;"

	echo "MySQL主从复制同步已经初始化完毕。"
	exit 0
fi

################################################
if [ "$1" = "mgr" ]
then

while true
do
	read -t 30 -p "是Primary吗？是请输入yes，否输入no:  " is_primary
	if [[ -z $is_primary ]]
	then
		continue
	else
		if [ $is_primary == "yes" ] || [ $is_primary == "no" ]
		then
			break 
		else
			 echo "你输入一个错误的字符$is_primary，请重新输入..."
			 continue
		fi
	fi
done

if [ $is_primary == "yes" ]
then
	/usr/local/mysql/bin/mysql -h127.0.0.1 -u"$dba_user" -p"$dba_passwd" -P"$mysql_port" --connect-expired-password -e "INSTALL PLUGIN group_replication SONAME  'group_replication.so'; set persist group_replication_group_name = '3b12b5bd-f0c6-11e9-9778-000c2900afc6';set persist group_replication_local_address =  '${local_ip}:${local_port}'; set persist group_replication_group_seeds = '${primary_ip}:${primary_port},${secondary1_ip}:${secondary1_port},${secondary2_ip}:${secondary2_port}';SET GLOBAL group_replication_bootstrap_group=ON; CHANGE MASTER TO MASTER_USER='$repl_user',MASTER_PASSWORD='$repl_passwd' FOR CHANNEL 'group_replication_recovery';START GROUP_REPLICATION;select sleep(5);select * from performance_schema.replication_group_members;SET GLOBAL group_replication_bootstrap_group=OFF;"

else
	/usr/local/mysql/bin/mysql -h127.0.0.1 -u"$dba_user" -p"$dba_passwd" -P"$mysql_port" --connect-expired-password -e "INSTALL PLUGIN group_replication SONAME  'group_replication.so'; set persist group_replication_group_name = '3b12b5bd-f0c6-11e9-9778-000c2900afc6';set persist group_replication_local_address =  '${local_ip}:${local_port}'; set persist group_replication_group_seeds = '${primary_ip}:${primary_port},${secondary1_ip}:${secondary1_port},${secondary2_ip}:${secondary2_port}'; SET GLOBAL group_replication_bootstrap_group=OFF; CHANGE MASTER TO MASTER_USER='$repl_user',MASTER_PASSWORD='$repl_passwd' FOR CHANNEL 'group_replication_recovery';START GROUP_REPLICATION;select sleep(5);select * from performance_schema.replication_group_members;"

fi
	
echo "MySQL Mgr组复制已经初始化完毕。"
exit 0

fi

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

ps aux | grep 'mysql' | grep -v 'grep' | grep -v 'bash'
if [ $? -eq 0 ]
then
	echo "MySQL进程已经启动，无需二次安装。"
	exit 0
fi

if [ ! -d /usr/local/${mysql8_version_dir} ]
then
        yum install xz numactl* jemalloc* libaio* net-tools nload iftop sysstat wget vim ntpdate lrzsz -y
	tar -Jxvf ${mysql8_version} -C /usr/local/
	ln -s /usr/local/${mysql8_version_dir} /usr/local/mysql
	chown -R mysql.mysql /usr/local/mysql/
	chown -R mysql.mysql /usr/local/mysql
else
	ln -s /usr/local/${mysql8_version_dir} /usr/local/mysql
	chown -R mysql.mysql /usr/local/mysql/
	chown -R mysql.mysql /usr/local/mysql
fi 

while true
do
	read -t 30 -p "输入你的数据库名:  " dbname
	read -t 30 -p "输入你的数据库端口号:  " dbport
	read -t 30 -p "输入MySQL serverId:  " serverId
	read -t 30 -p "输入innodb_buffer_pool_size大小，单位G:  " innodb_bp_size
	if [[ -z $dbname || -z $dbport || -z $serverId || -z $innodb_bp_size ]]
	then
		continue
	else
		echo "数据库名字是： $dbname"
		echo "数据库端口是： $dbport"
		echo "MySQL serverId： $serverId"
		echo "BP大小是： $innodb_bp_size GB"
		break 
	fi
done

sed "s/test/$dbname/g;s/3306/$dbport/;s/413306/$serverId/;/innodb_buffer_pool_size/s/1/$innodb_bp_size/" my_test.cnf > /etc/my_$dbname.cnf

DATA_DIR=/data/mysql/$dbname
[ ! -d $DATA_DIR ] && mkdir -p $DATA_DIR/{data,binlog,relaylog,tmp,slowlog,log}; touch $DATA_DIR/log/error.log; chown -R mysql.mysql /data/mysql/


if [ `ls -A $DATA_DIR/data/ | wc -w` -eq 0 ]
then
	cd /usr/local/mysql
	echo ""
	echo "初始化MySQL数据目录......"
	echo ""
	bin/mysqld --defaults-file=/etc/my_$dbname.cnf --initialize --lower-case-table-names=1 --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/$dbname/data
	sleep 2
	bin/mysqld_safe --defaults-file=/etc/my_$dbname.cnf --user=mysql &
fi

while true
do
	 netstat -ntlp | grep $dbport
	 if [ $? -eq 1 ]
	 then
        echo "MySQL启动中，稍等......"
        sleep 5
        continue
	 else
        if [ ! -e "/tmp/mysql_${dbname}.sock" ];then
            echo "MySQL启动中，稍等......"
            sleep 5
            continue
        fi
		break
	 fi
done

ps aux | grep 'mysql' | grep -v 'grep' | grep -v 'bash'
if [ $? -eq 0 ]
then
        echo "MySQL安装完毕。"
else
	echo "MySQL安装失败。"
        exit 1
fi

###更改root账号随机密码
random_passwd=`grep 'temporary password' $DATA_DIR/log/error.log | awk -F 'root@localhost: ' '{print $2}'`

/usr/local/mysql/bin/mysql -S /tmp/mysql_$dbname.sock -p"$random_passwd" --connect-expired-password -e "alter user root@'localhost' identified by '$root_passwd';" 
if [ $? -eq 0 ]
then
    echo "root账号随机密码更改完毕。"
else
    echo "密码更改失败，再次重试更改。"
    sleep 5
    /usr/local/mysql/bin/mysql -S /tmp/mysql_$dbname.sock -p"$random_passwd" --connect-expired-password -e "alter user root@'localhost'identified by '$root_passwd';"
    if [ $? -eq 0 ]
    then
       echo "root账号随机密码更改完毕。"
    else
       echo "密码更改失败"
       exit 1
    fi
fi

###创建同步账号和管理员账号
/usr/local/mysql/bin/mysql -S /tmp/mysql_$dbname.sock -p"$root_passwd" -e "set sql_log_bin=0;create user '$repl_user'@'%' IDENTIFIED BY '$repl_passwd'; GRANT REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO '$repl_user'@'%'; create user '$dba_user'@'%' IDENTIFIED BY '$dba_passwd'; GRANT ALL on *.* to '$dba_user'@'%' WITH GRANT OPTION;"

sed -i -r "s/(PATH=)/\1\/usr\/local\/mysql\/bin:/" /root/.bash_profile
source /root/.bash_profile

echo "MySQL账号初始化完毕。"

###安装clone插件
/usr/local/mysql/bin/mysql -S /tmp/mysql_$dbname.sock -p"$root_passwd" -e "set sql_log_bin=0;INSTALL PLUGIN CLONE SONAME 'mysql_clone.so'; CREATE USER '$clone_user'@'%' IDENTIFIED BY '$clone_passwd';GRANT BACKUP_ADMIN,CLONE_ADMIN ON *.* TO '$clone_user'@'%';"

echo ""
echo "clone克隆插件安装完毕。"

### 最后一步清空binlog文件，恢复起始文件mysql-bin.000001和Position位置号153 
/usr/local/mysql/bin/mysql -S /tmp/mysql_$dbname.sock  -p"$root_passwd" -e "reset master;"

my_test.cnf

[client]
port		=  3306
socket   =  /tmp/mysql_test.sock
#default-character-set = utf8 
prompt=(\\u@\\h) [\\d]>\\_

# The MySQL server
#########Basic##################
[mysqld]
##bind_address = 127.0.0.1
server-id	=  413306
port	        =  3306
user            =  mysql
basedir		=  /usr/local/mysql
datadir		=  /data/mysql/test/data
tmpdir		=  /data/mysql/test/tmp
secure_file_priv =  /data/mysql/test/tmp
socket		=  /tmp/mysql_test.sock
skip-external-locking
skip-name-resolve
skip-ssl
##init_connect = 'SET global sql_mode = ""'
sql_mode = ''
default_authentication_plugin = mysql_native_password
activate_all_roles_on_login = 1

### Percona ###
#extra_port = 13306
#extra_max_connections = 100

###skip-networking
default-storage-engine = INNODB
character-set-server = utf8
wait_timeout  =  3600
connect_timeout  =  20
interactive_timeout  =  3600
back_log  =  500
#event_scheduler  =  ON
open_files_limit = 65535
#thread_handling  =  pool-of-threads

lower_case_table_names  =  1

###### binlog ######
log-bin  =  /data/mysql/test/binlog/mysql-bin
binlog_format = ROW
binlog_row_image = FULL
binlog_row_metadata = FULL
binlog_checksum = NONE
binlog_transaction_dependency_tracking = WRITESET
sync_binlog      =   1
gtid_mode = on
enforce_gtid_consistency = on
log_slave_updates   =  1
master_info_repository = TABLE
relay_log_info_repository = TABLE
max_binlog_size  =  128M
binlog_cache_size  =  1M
expire-logs-days  =  7

#########replication#############
relay-log               =  /data/mysql/test/relaylog/relay-log
slave-net-timeout                   =  10
#rpl_semi_sync_master_enabled        =  1
#rpl_semi_sync_master_wait_no_slave   =  1
#rpl_semi_sync_master_timeout        =  1000
#rpl_semi_sync_slave_enabled         =  1
#skip-slave-start
log_slave_updates                  =  1
relay_log_recovery                 =  1
#slave_skip_errors = 1062
read_only                          =  0

###### Mgr config ######
loose-transaction_write_set_extraction = XXHASH64
loose-group_replication_start_on_boot = ON ###是否随mysql启动Group Replication
loose-group_replication_bootstrap_group = OFF  ###是否是Group Replication的引导节点，初次搭建集群的时候需要有一个节点设置为ON来启动Group Replication
					       ###参数设置为ON，是为了标示以后加入集群的服务器都已这台服务器为基准。以后加入的就不需要进行设置
					    
loose-group_replication_group_name = aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa                             
#loose-group_replication_local_address = 192.168.148.41:33061					       
#loose-group_replication_group_seeds = 192.168.148.41:33061,192.168.148.42:33072,192.168.148.39:33083					       
loose-group_replication_single_primary_mode = ON	
loose-group_replication_exit_state_action = OFFLINE_MODE
loose-group_replication_transaction_size_limit = 150000000 ###默认143M事务大小，最大值2147483647（大约2G），当此系统变量设置为0时，该组接受的事务大小没有限制。
loose-group_replication_enforce_update_everywhere_checks = OFF ###在单主模式下设置为OFF，多主模式下设置为ON。
								
###offline_mode = ON

###MHA ############
relay_log_purge            =  1
###################

###parallel replication####
slave_parallel_type = LOGICAL_CLOCK
slave_parallel_workers = 24
slave_preserve_commit_order = ON
##################################

#########slow log#############
slow_query_log  =  1
slow_query_log_file  =  /data/mysql/test/log/mysql-slow.log
#log-slow-verbosity = query_plan,explain
long_query_time  =  5

#########error log#############
log-error   =  /data/mysql/test/log/error.log
log_timestamps = system
 
#######per_thread_buffers############
max_connections=4100
max_user_connections=4000
max_connect_errors=100000000
max_allowed_packet = 256M
table_open_cache = 6144
table_definition_cache = 4096
sort_buffer_size = 128K
read_buffer_size = 128K
read_rnd_buffer_size = 128k
join_buffer_size = 128K
tmp_table_size = 64M
max_heap_table_size = 64M
bulk_insert_buffer_size = 32M
thread_cache_size = 64
#thread_concurrency = 32
thread_stack = 256K

##MyISAM## 
key_buffer_size = 64M
myisam_sort_buffer_size = 8M
concurrent_insert=2
low_priority_updates=1
myisam_recover_options=BACKUP,FORCE

######### InnoDB #############
sql_generate_invisible_primary_key = 1
innodb_adaptive_hash_index = 0
innodb_autoinc_lock_mode = 2
innodb_numa_interleave = 1
innodb_sort_buffer_size = 32M
innodb_rollback_on_timeout = 1
innodb_data_file_path = ibdata1:10M:autoextend
innodb_buffer_pool_dump_at_shutdown = 1
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_size = 1G
innodb_buffer_pool_instances	= 16
innodb_lru_scan_depth = 2048
innodb_log_file_size = 512M
innodb_log_buffer_size = 64M
innodb_log_files_in_group = 3
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 10
innodb_sync_spin_loops = 40
innodb_max_dirty_pages_pct = 95
innodb_ddl_threads = 16
innodb_ddl_buffer_size = 1G
innodb_online_alter_log_max_size = 1G
innodb_parallel_read_threads = 32
innodb_thread_concurrency = 0
innodb_thread_sleep_delay = 500
innodb_concurrency_tickets = 1000
log_bin_trust_function_creators = 1
innodb_flush_method = O_DIRECT
#innodb_flush_method = O_DIRECT_NO_FSYNC
innodb_file_per_table = 1
innodb_read_io_threads = 16
innodb_write_io_threads = 16
innodb_use_native_aio = 1
innodb_io_capacity = 800
innodb_purge_threads = 16
innodb_purge_batch_size = 32
innodb_old_blocks_time = 1000
innodb_change_buffering = all
transaction_isolation = READ-COMMITTED
innodb_stats_on_metadata = 0
performance-schema = 1
performance-schema-instrument = wait/lock/metadata/sql/mdl=ON

####### NEW ########
##innodb_kill_idle_transaction = 5

###### SSD #########
#innodb_flush_neighbors = 0
#innodb_log_block_size = 4096
####################

[mysqldump]
quick
max_allowed_packet = 128M

[mysql]
no-auto-rehash
#prompt=(\\u@\\h) [\\d]>\\_
prompt=(\\u@\\h) [\\d]>\\_

[myisamchk]
key_buffer_size = 64M
sort_buffer_size = 256k
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout

[mysqld_safe]
open-files-limit = 65535
#flush_caches = 1
#numa_interleave = 1
malloc-lib = /usr/lib64/libjemalloc.so