shell脚本一键安装MySQL5.7.29的方法

本文参考51cto博客作者wjw555的作品

脚本内容：

vim install.mysql.sh
 
#!/bin/bash
 
[ -f /etc/init.d/functions ]&& . /etc/init.d/functions
 
###check if user is root
if [ $uid -ne 0 ]; then
 echo "error: you must be root to run this script, please use root to install"
 exit 1
fi
 
clear
echo "========================================================================="
echo "a tool to auto-compile & install mysql 5.7.29 on redhat/centos linux "
echo "========================================================================="
#pkill -9 mysql
#date +%y-%m-%d-%h-%m
#卸载系统自带的mysql
#/bin/rpm -e $(/bin/rpm -qa | grep mysql|xargs) --nodeps
#/bin/rpm -e $(/bin/rpm -qa | grep mariadb|xargs) --nodeps
#/bin/rm -f /etc/my.cnf
 
#set mysql root password
 echo "==========================="
  mysqlrootpwd="$1"
  if [ "$1" = "" ]; then
    mysqlrootpwd="rootmysql"
  fi
 
#which mysql version do you want to install?
echo "==========================="
 
 isinstallmysql57="5.7.29"
 echo "install mysql 5.7.29,please input y"
 read -p "(please input y , n):"
# initialize the installation related content.
 #delete old mysql program
 rpm -qa|grep mysql
 rpm -e mysql
 
 
cat >>/etc/security/limits.conf<<eof
* soft nproc 65535
* hard nproc 65535
* soft nofile 65535
* hard nofile 65535
eof
 
echo "fs.file-max=65535" >> /etc/sysctl.conf
 
echo "============================install mysql 5.7.29=================================="
 
#backup old my.cnf
#rm -f /etc/my.cnf
if [ -s /etc/my.cnf ]; then
 mv /etc/my.cnf /etc/my.cnf.`date +%y%m%d%h%m%s`.bak
fi
echo "============================mysql 5.7.29 installing…………========================="
 
##define mysql directory configuration variable
datadir=/data/mysql/data
binlogdir=/data/mysql/binlog
logdir=/data/mysql/logs
 
##yum install devel and wget mysql
yum install numactl
/usr/bin/wget -p /tmp http://mirrors.163.com/mysql/downloads/mysql-5.7/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz
sleep 2
tar xf /tmp/mysql-5.7.29-linux-glibc2.12-x86_64.tar.gz -c /usr/local/
ln -s /usr/local/mysql-5.7.29-linux-glibc2.12-x86_64 /usr/local/mysql
grep mysql /etc/passwd
retval=$?
if [ $retval -ne 0 ];then
 useradd mysql -s /sbin/nologin -m
  action "mysql user added successfully" /bin/true
 else
  action " $(echo -e "\e[31;47;5m mysql user already exists\e[0m")" /bin/false
fi
 
if [ ! -d "$datadir" ]
then
 mkdir -p /data/mysql/data
fi
 
 
if [ ! -d "$binlogdir" ]
then
 mkdir -p /data/mysql/binlog
fi
 
if [ ! -d "$logdir" ]
then
 mkdir -p /data/mysql/logs
fi
 
chown -r mysql:mysql /data/mysql
chown -r mysql:mysql /usr/local/mysql
 
#edit /etc/my.cnf
#serverid=`ifconfig eth0 | grep "inet addr" | awk '{ print $2}'| awk -f. '{ print $3$4}'`
cat >>/etc/my.cnf<<eof
[client]
port   = 3306
 
[mysql]
auto-rehash
prompt="\\u@\\h [\\d]>"
#pager="less -i -n -s"
#tee=/opt/mysql/query.log
 
[mysqld]
####: for global
user        =mysql       
basedir        =/usr/local/mysql/    
datadir        =/data/mysql/data 
server_id       =2333306      
port        =3306       
character_set_server    =utf8       
explicit_defaults_for_timestamp  =off       
log_timestamps      =system      
socket        =/tmp/mysql.sock    
read_only       =0        
skip_name_resolve     =1        
auto_increment_increment   =1        
auto_increment_offset    =1        
lower_case_table_names    =1        
secure_file_priv     =        
open_files_limit     =65536       
max_connections      =1000       
thread_cache_size     =64       
table_open_cache     =81920       
table_definition_cache    =4096       
table_open_cache_instances   =64       
max_prepared_stmt_count    =1048576      
 
####: for binlog
binlog_format      =row       
log_bin        =/data/mysql/binlog/mysql-bin      
binlog_rows_query_log_events  =on       
log_slave_updates     =on       
expire_logs_days     =7        
binlog_cache_size     =65536       
#binlog_checksum     =none       
sync_binlog       =1        
slave-preserve-commit-order   =on       
 
####: for error-log
log_error       =/data/mysql/logs/error.log      
 
general_log       =off       
general_log_file     =/data/mysql/logs/general.log     
 
####: for slow query log
slow_query_log      =on        
slow_query_log_file     =/data/mysql/logs/slow.log      
#log_queries_not_using_indexes  =on       
long_query_time      =1.000000      
 
####: for gtid
#gtid_executed_compression_period =1000       
gtid_mode       =on        
enforce_gtid_consistency   =on        
 
####: for replication
skip_slave_start      =1        
#master_info_repository    =table       
#relay_log_info_repository   =table       
slave_parallel_type     =logical_clock     
slave_parallel_workers    =4        
#rpl_semi_sync_master_enabled  =1        
#rpl_semi_sync_slave_enabled   =1        
#rpl_semi_sync_master_timeout  =1000       
#plugin_load_add      =semisync_master.so   
#plugin_load_add      =semisync_slave.so    
binlog_group_commit_sync_delay  =100       
binlog_group_commit_sync_no_delay_count = 10      
 
####: for innodb
default_storage_engine       =innodb     
default_tmp_storage_engine      =innodb     
innodb_data_file_path       =ibdata1:1024m:autoextend 
innodb_temp_data_file_path      =ibtmp1:12m:autoextend  
innodb_buffer_pool_filename      =ib_buffer_pool   
innodb_log_group_home_dir      =/data/mysql/data      
innodb_log_files_in_group      =3       
innodb_log_file_size       =1024m      
innodb_file_per_table       =on      
innodb_online_alter_log_max_size    =128m      
innodb_open_files        =65535      
innodb_page_size        =16k      
innodb_thread_concurrency      =0       
innodb_read_io_threads       =4       
innodb_write_io_threads       =4       
innodb_purge_threads       =4       
innodb_page_cleaners       =4   
     # 4(刷新lru脏页)
innodb_print_all_deadlocks      =on      
innodb_deadlock_detect       =on      
innodb_lock_wait_timeout      =20      
innodb_spin_wait_delay       =128      
innodb_autoinc_lock_mode      =2       
innodb_io_capacity        =200      
innodb_io_capacity_max       =2000      
#--------persistent optimizer statistics
innodb_stats_auto_recalc      =on      
innodb_stats_persistent       =on      
innodb_stats_persistent_sample_pages   =20      
 
 
innodb_adaptive_hash_index      =on      
innodb_change_buffering       =all      
innodb_change_buffer_max_size     =25      
innodb_flush_neighbors       =1       
#innodb_flush_method        =       
innodb_doublewrite        =on      
innodb_log_buffer_size       =128m      
innodb_flush_log_at_timeout      =1       
innodb_flush_log_at_trx_commit     =1       
innodb_buffer_pool_size       =4096m      
innodb_buffer_pool_instances     =4
autocommit          =1       
#--------innodb scan resistant
innodb_old_blocks_pct       =37      
innodb_old_blocks_time       =1000      
#--------innodb read ahead
innodb_read_ahead_threshold      =56      
innodb_random_read_ahead      =off      
#--------innodb buffer pool state
innodb_buffer_pool_dump_pct      =25      
innodb_buffer_pool_dump_at_shutdown    =on      
innodb_buffer_pool_load_at_startup    =on      
 
eof
 
/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data
pass=$(grep 'a temporary password' /data/mysql/logs/error.log |awk '{print $nf}')
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
chkconfig --add mysqld
chkconfig mysqld on
/etc/init.d/mysqld start
echo "export path=$path:/usr/local/mysql/bin" > /etc/profile.d/mysql.sh
source /etc/profile.d/mysql.sh
echo "============================mysql 5.7.29 install completed========================="
ps -eo start,cmd,pid|grep mysql
/usr/local/mysql/bin/mysqladmin -uroot -p"$pass" password $mysqlrootpwd

[root@localhost ~]# sh install.mysql.sh mysqlroot
[root@localhost ~]# source /etc/profile.d/mysql.sh

说明： mysqlroot 为安装脚本修改mysql服务默认密码后的新的密码

[root@localhost ~]# mysql -uroot -p'mysqlroot' -e "select now()"   
mysql: [warning] using a password on the command line interface can be insecure.
+---------------------+
| now()    |
+---------------------+
| 2020-10-13 16:18:47 |
+---------------------+

到此处mysql服务启动成功！

总结

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