本文写作说明： MySQL的配置文件my.cnf参数调整参考来源于iMySQL | 老叶茶馆 此脚本是本博主生产环境中经常使用的进行批量部署mysql服务时采用。脚本比较陋，写此处主要是方便自己使用时及时查阅，同时也希望可以帮助初级的DBA同学，脚本中如有写法不当之处欢迎拍砖，但是也希望不喜勿喷。

脚本文件内容：

#!/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 5.7.24 on Redhat/CentOS Linux " echo "=========================================================================" #set mysql root password echo "===========================" mysqlrootpwd="$1" if [ "$1" = "" ]; then mysqlrootpwd="rootmysql" fi #which MySQL Version do you want to install? echo "===========================" isinstallmysql57="5.7.24" echo "Install MySQL 5.7.24,Please input y" read -p "(Please input y , n):" # Initialize the installation related content. #Delete Old Mysql program rpm -qa|grep mysql rpm -e mysql cat >>/etc/security/limits.conf<<EOF * soft nproc 65535 * hard nproc 65535 * soft nofile 65535 * hard nofile 65535 EOF echo "fs.file-max=65535" >> /etc/sysctl.conf echo "============================Install MySQL 5.7.24==================================" #Backup old my.cnf #rm -f /etc/my.cnf if [ -s /etc/my.cnf ]; then mv /etc/my.cnf /etc/my.cnf.`date +%Y%m%d%H%M%S`.bak fi echo "============================MySQL 5.7.24 installing…………=========================" ##define mysql directory configuration variable Datadir=/data/mysql/data Binlogdir=/data/mysql/binlog Logdir=/data/mysql/logs ##yum install devel and wget mysql yum install numactl ##/usr/bin/wget -P /tmp https://cdn.mysql.com//Downloads/MySQL-5.7/mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz sleep 2 tar xf /tmp/mysql-5.7.24-linux-glibc2.12-x86_64.tar.gz -C /usr/local/ ln -s /usr/local/mysql-5.7.24-linux-glibc2.12-x86_64 /usr/local/mysql grep mysql /etc/passwd RETVAL=$? 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 5.7.24 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() | +---------------------+ | 2018-11-09 13:40:41 | +---------------------+ [root@localhost ~]#

到此处MySQL服务启动成功