Cannot start after installing MySQL 5.7.27 in CentOS 7? (Language bash)

The phenomenon and background of the problem

Use @ high & jade Script in Centos 7 install Mysql 5.7.27 Can't start after

Problem related code , Do not paste screenshots

#!/bin/bashset -eMYSQL_PASSWD="Yinhai"MYSQL_DATADIR=/data/mysql/dataMYSQL_PORT='3306'TOTAL_MEM=`free -g | grep Mem | awk '{print $2}'`TOTAL_MEM_PERCENT_70=`echo "($TOTAL_MEM*0.7)/1"`INNODB_BUFFER_POOL_SIZE=`echo $TOTAL_MEM_PERCENT_70"G"`# Operating system parameter adjustment system_parameter_update() {echo " Operating system parameter adjustment "# Disk scheduling for disk_name in `ls /sys/block/`do    echo noop > /sys/block/$disk_name/queue/schedulerdone# Big page echo  never >> /sys/kernel/mm/transparent_hugepage/enabledecho  never >> /sys/kernel/mm/transparent_hugepage/defrag# Resource pool restrictions cat >> /etc/security/limits.conf <<EOF* soft nproc 655350* hard nproc 655350* soft nofile 655350* hard nofile 655350EOFecho "fs.file-max=655350" >> /etc/sysctl.conf#SWAPecho "vm.swappiness=0" >> /etc/sysctl.conf #dirty pageecho "5" > /proc/sys/vm/dirty_background_ratioecho "10" > /proc/sys/vm/dirty_ratio}# Download installation package wget_mysql_binary() {echo " download MySQL Installation package "if read -t 60 -p "Do you download the MySQL installation package(y/n)?" WGET_VALUEthen    if [ "$WGET_VALUE" = "y" ]    then        wget https://cdn.mysql.com/archives/mysql-5.7/mysql-5.7.33-el7-x86_64.tar.gz    fielse    WGET_VALUE = "n"fi}# Delete mariadb package drop_mariadb() {echo "========================================= Delete mariadb==================================="mariadb_num=`rpm -qa | grep mariadb | wc -l`if [ $mariadb_num -ne 0 ]then    rpm -qa | grep mariadb | xargs rpm -e --nodepsfi}# Install dependency packages yum_install_depend() {echo " Install dependency packages "yum install libaio -y}# establish mysql user user_add() {echo " establish mysql user "useradd mysql >>/dev/nullif read -t 60 -p "(Please input the mysql password(default:$MYSQL_PASSWD):" SYS_MYSQL_PASSWORDthen    if [ "$SYS_MYSQL_PASSWORD" = "" ]; then        SYS_MYSQL_PASSWORD="$MYSQL_PASSWD"    fielse    SYS_MYSQL_PASSWORD="$MYSQL_PASSWD"fiecho "$SYS_MYSQL_PASSWORD" | passwd mysql --stdinecho "export PATH=\$PATH:/usr/local/mysql/bin" >>/home/mysql/.bashrcecho "export PATH=\$PATH:/usr/local/mysql/bin" >>/root/.bashrc}# To configure MySQL Catalog install_mysql_path() {echo "MySQL DATADIR Catalog "echo -e "Please input the DATADIR of MySQL:"read -t 60 -p "(Default DATADIR:$MYSQL_DATADIR):" DATADIRif [ "$DATADIR" = "" ]; then    DATADIR=$MYSQL_DATADIRfimkdir -p $DATADIRchown -R mysql:mysql $DATADIR/chmod -R 750 $DATADIRif [ $? -eq 0 ]then    echo "Mkdir path Successfully."else    echo "Mkdir path Failed!!!"fi}# Generate MySQL Parameter file conf_parameter_file_1() {echo " edit my.cnf The configuration file "if [ -f /etc/mysql/my.cnf ]then    mv /etc/mysql/my.cnf /etc/mysql/my.cnf_$(date +%Y-%m-%d-%H:%M)    fiif [ -f /etc/my.cnf ]then    mv /etc/my.cnf /etc/my.cnf_$(date +%Y-%m-%d-%H:%M)    fiSERVER_ID=$(date +%s)mkdir -p /etc/mysql/cat >> /etc/mysql/my.cnf <<EOF[client]user = root#password = $PASSWD[mysqld]bind_address = 0.0.0.0port = $MYSQL_PORTbasedir = /usr/local/mysqldatadir = $DATADIRsocket = /tmp/mysql.socklower-case-table-names = 1[mysql]prompt=(\[email protected]\h) [\d]>\_no-auto-rehashEOFchown -R mysql:mysql /etc/mysql}# initialization MySQLinitdb_mysql() {echo " initialization MySQL"if [ -d /usr/local/mysql ]then    mv /usr/local/mysql /usr/local/mysql_$(date +%Y-%m-%d-%H-%M)fitar -zxf mysql-5.7.27-linux-glibc2.12-x86_64.tar.gz -C /usr/local/mv /usr/local/mysql-5.7.27-linux-glibc2.12-x86_64 /usr/local/mysqlchown -R mysql:mysql /usr/local/mysql/# initialization MySQLsu - mysql -c "mysqld --initialize-insecure --user=mysql"if [ $? -eq 0 ]then    echo "MySQL initialize Successfully."else    echo "MySQL initialize Failed!!!"fimkdir -p $DATADIR/logs/{log-bin,log-group,log-relay}chown -R mysql:mysql $DATADIR/chmod -R 750 $DATADIR}# Generate MySQL Parameter file conf_parameter_file_2() {echo " edit my.cnf The configuration file "if [ -f /etc/mysql/my.cnf ]then    mv /etc/mysql/my.cnf /etc/mysql/my.cnf_$(date +%Y-%m-%d-%H:%M)    fiif [ -f /etc/my.cnf ]then    mv /etc/my.cnf /etc/my.cnf_$(date +%Y-%m-%d-%H:%M)    fiSERVER_ID=$(date +%s)mkdir -p /etc/mysql/cat >> /etc/mysql/my.cnf <<EOF[client]user = root#password[mysqld]bind_address = 0.0.0.0port = $MYSQL_PORTbasedir = /usr/local/mysqldatadir = $DATADIRsocket = $DATADIR/mysql.sock# character character_set_server = utf8mb4lower-case-table-names = 1# Password policy #plugin-load-add = validate_password.sodefault_authentication_plugin=mysql_native_password# Log Settings sync_binlog = 1log-bin = $DATADIR/logs/log-bin/mysql-binbinlog_format = rowbinlog_row_image = fulllog_bin_trust_function_creators = 1expire_logs_days = 30#general_log = ongeneral_log_file = $DATADIR/logs/general.log log_error = $DATADIR/logs/error.logslow_query_log = onslow_query_log_file = $DATADIR/logs/slow.loglong_query_time = 2#min_examined_row_limit = 100#log_queries_not_using_indexes = on#log_throttle_queries_not_using_indexes = 4log_slow_admin_statements = onlog_output = filelog_slow_slave_statements = onrelay-log = $DATADIR/logs/log-relay/relay_logrelay_log_info_file = $DATADIR/logs/log-relay/relay-log.info# Connect max-connections = 1000back_log = 300max_allowed_packet = 64Minteractive_timeout = 28800wait_timeout = 28800# cache sort_buffer_size = 32Mtmp_table_size = 32Mjoin_buffer_size = 32Mread_buffer_size = 32Mread_rnd_buffer_size = 32Mkey_buffer_size = 64Mmyisam_sort_buffer_size = 64Mmax_heap_table_size = 16Mopen_files_limit = 65535thread_cache_size = 512table_open_cache = 16384table_definition_cache = 16384table_open_cache_instances = 8#InnoDBdefault-storage-engine = INNODBinnodb_buffer_pool_size = $INNODB_BUFFER_POOL_SIZEinnodb_adaptive_flushing = ONinnodb_adaptive_flushing_lwm = 15innodb_flushing_avg_loops = 30innodb_adaptive_hash_index = ONinnodb_data_home_dir = $DATADIRinnodb_file_per_table = ONinnodb_log_group_home_dir = $DATADIR/logs/log-group/innodb_log_files_in_group = 3innodb_log_buffer_size = 32Minnodb_flush_log_at_trx_commit = 1innodb_flush_log_at_timeout = 1innodb_lock_wait_timeout = 30innodb_buffer_pool_instances = 8innodb_change_buffering = allinnodb_change_buffer_max_size = 10innodb_autoextend_increment = 64innodb_thread_concurrency = 32innodb_spin_wait_delay = 6innodb_sync_spin_loops = 30innodb_open_files = 65535innodb_old_blocks_time = 30innodb_online_alter_log_max_size = 512Minnodb_write_io_threads = 8innodb_read_io_threads = 8innodb_flush_neighbors = 0innodb_io_capacity = 3000innodb_io_capacity_max = 16000innodb_lru_scan_depth = 1024innodb_purge_threads = 4innodb_purge_batch_size = 400innodb_buffer_pool_filename = ib_buffer_poolinnodb_buffer_pool_load_abort = OFFinnodb_buffer_pool_dump_now = OFFinnodb_buffer_pool_load_now = OFFinnodb_max_dirty_pages_pct = 75innodb_max_dirty_pages_pct_lwm = 0# Index column length innodb_default_row_format = dynamicinnodb_file_format = Barracudainnodb_large_prefix = ON#Replicationserver_id = $SERVER_ID#report_host = 10.46.203.123 # Local IPgtid_mode = onenforce_gtid_consistency = onloose-plugin_load_add = 'semisync_master.so'loose-plugin_load_add = 'semisync_slave.so'loose-rpl_semi_sync_master_enabled              # Enable after installing the plug-in loose-rpl_semi_sync_slave_enabled               # Enable after installing the plug-in loose-rpl_semi_sync_master_wait_point           # Enable after installing the plug-in loose-rpl_semi_sync_master_timeout               # Enable after installing the plug-in skip_slave_start = off                           # start-up MySQL Whether to skip startup slave process slave_parallel_type = LOGICAL_CLOCKslave_parallel_workers = 16slave_preserve_commit_order = onlog_slave_updates = on[mysql]prompt=(\[email protected]\h) [\d]>\_no-auto-rehashEOFchown -R mysql:mysql /etc/mysqlif [ $? -eq 0 ]then    echo "Configure my.cnf Successfully."else    echo "Configure my.cnf Failed!!!"fi}# install MySQL SSLinstall_ssl() {echo " install MySQL SSL"su - mysql -c "mysql_ssl_rsa_setup"chown mysql:mysql $DATADIR/*.pemif [ $? -eq 0 ]then    echo "Install MySQL SSL Successfully."else    echo "Install MySQL SSL Failed!!!"fi}# To configure MySQL Startup file conf_mysqld_file() {echo " To configure /etc/init.d/mysqld"if [ -f /etc/init.d/mysqld ]then    mv /etc/init.d/mysqld /etc/init.d/mysqld_$(date +%Y-%m-%d-%H:%M)ficp -f /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqldif [ $? -eq 0 ]then    echo "Configure /etc/init.d/mysqld Successfully."else    echo "Configure /etc/init.d/mysqld Failed!!!"fichown mysql:mysql /etc/rc.d/init.d/mysqld}# start-up MySQLstart_mysql() {echo " start-up MySQl"su - mysql -c "/usr/local/mysql/support-files/mysql.server start"}# Configure enhanced replication config_rpl_semi() {echo " To configure MySQL Enhanced replication "su - mysql -c mysql <<EOFinstall plugin rpl_semi_sync_master soname 'semisync_master.so';install plugin rpl_semi_sync_slave soname 'semisync_slave.so';EOFsed -i "s/#rpl_semi_sync_master_enabled/rpl_semi_sync_master_enabled = on/g" /etc/mysql/my.cnfsed -i "s/#rpl_semi_sync_slave_enabled/rpl_semi_sync_slave_enabled = on/g" /etc/mysql/my.cnfsed -i "s/#rpl_semi_sync_master_wait_point/rpl_semi_sync_master_wait_point = AFTER_SYNC/g" /etc/mysql/my.cnfsed -i "s/#rpl_semi_sync_master_timeout/rpl_semi_sync_master_timeout = 5000/g" /etc/mysql/my.cnfsu - mysql -c "/etc/init.d/mysqld restart"}# modify the database root User's password change_mysql_root_password() {echo " modify MySQL User password "echo -e "Please set the MySQL root password:"read -t 60 -p "(The default MySQL root password is '$MYSQL_PASSWD'):" MYSQL_ROOT_PASSWORDif [ "$MYSQL_ROOT_PASSWORD" = "" ]; then    MYSQL_ROOT_PASSWORD="$MYSQL_PASSWD"fisu - mysql -c mysql <<EOFset sql_log_bin = off;alter user 'root'@'localhost' identified by "$MYSQL_ROOT_PASSWORD";create user 'root'@'%' identified by "$MYSQL_ROOT_PASSWORD";grant all privileges on *.* to 'root'@'%';flush privileges;set sql_log_bin = on;EOFif [ $? -eq 0 ]then    echo "Change mysql password Successfully."else    echo "Change mysql password Failed!!!"fi}# modify my.cnf file change_parater_passwd() {echo " modify my.cnf file "sed -i "s/#password/password = '$MYSQL_ROOT_PASSWORD'/g" /etc/mysql/my.cnf}# Operating system parameter adjustment system_parameter_update# Download installation package #wget_mysql_binary# Delete mariadb package drop_mariadb# Install dependency packages #yum_install_depend# Create users and groups user_add# To configure MySQL Catalog install_mysql_path# Generate MySQL Parameter file conf_parameter_file_1# initialization MySQLinitdb_mysql# Generate MySQL Parameter file conf_parameter_file_2# install MySQL SSLinstall_ssl# To configure MySQL Startup file conf_mysqld_file# start-up MySQLstart_mysql# Configure enhanced replication #config_rpl_semi# modify the database root User's password change_mysql_root_password# modify my.cnf file change_parater_passwdecho -e " Operating system users mysql The password for is :$SYS_MYSQL_PASSWORD"echo -e "MySQL Database users mysql The password for is :$MYSQL_ROOT_PASSWORD"

Operation results and error reporting contents

start-up MySQl
Starting MySQL.. ERROR! The server quit without updating PID file (/data/mysql/data/drgs.pid).

My solution ideas and tried methods

permissions

What I want to achieve