Centos7二进制安装Mysql8.0.20
2024-05-22 07:43:34
8.0和5.6的安装大不相同，但是感觉更简单了，大同小异，下面请看操作
#安装mysql所需依赖包
yum install libaio* -y
#下载mysql二进制安装包
wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.20-linux-glibc2.12-x86_64.tar.xz
#卸载系统自带mysql/mariadb
rpm -qa | grep mysql
rpm -qa | grep mariadb
rpm -e --nodeps mysql
rpm -e --nodeps mariadb
创建mysql用户和组
groupadd mysql
useradd -r -g mysql -s /sbin/nologin mysql
创建Mysql所需data和log目录
mkdir -p /oradata/data
mkdir -p /var/log/mysql
chown -R mysql:mysql /oradata/data
chown -R mysql:mysql /var/log/mysql
chmod -R 755 /oradata/data
chmod -R 755 /var/log/mysql
解压mysql安装包并移至相关目录
#解压
tar xf mysql-8.0.20-linux-glibc2.12-x86_64.tar.xz
#移动
mv /usr/local/src/mysql-8.0.20-linux-glibc2.12-x86_64 /usr/local/mysql
配置/etc/my.cnf文件
[mysqld]
port=3306
basedir=/ointall/mysql
datadir=/oradata/data
log-error=/var/log/mysql/error.log
user=mysql
default_authentication_plugin=mysql_native_password
skip_host_cache
skip-name-resolve=1
#skip-grant-tables
[client]
socket=/tmp/mysql.sock
初始化数据库，这里生成的密码在后面登陆的时候并没用，所以记不记没什么关系
[root@mysql ointall]# /ointall/mysql/bin/mysqld --initialize --user=mysql --basedir=/ointall/mysql/ --datadir=/oradata/data/
2019-03-15T10:04:27.501908Z 0 [System] [MY-013169] [Server] /ointall/mysql/bin/mysqld (mysqld 8.0.14) initializing of server in progress as process 10141
2019-03-15T10:04:29.827892Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: :rgVLupUj0W#
2019-03-15T10:04:30.842485Z 0 [System] [MY-013170] [Server] /ointall/mysql/bin/mysqld (mysqld 8.0.14) initializing of server has completed
制作启动文件
cp -a /ointall/mysql/support-files/mysql.server /etc/init.d/mysqld
#更改启动文件路径
vim /etc/init.d/mysqld
将basedir更改为basedir=/ointall/mysql
将basedir更改为basedir=/ointall/mysql/bin
将datadir更改为datadir=/oradata/data#授予mysqld执行权限chmod -R 755 /etc/init.d/mysqld#启动mysql服务/etc/init.d/mysqld start#创建软连接，也就是windows里面的快捷方式ln -vs /ointall/mysql/bin/mysql /usr/bin
注：如果所有操作，所有配置文件都没有错误的情况启动报如下错误，
Starting MySQL.Logging to '/var/log/mysql/error.log'.ERROR! The server quit without updating PID file (/oradata/data/rabbitmq.pid).
尝试用一下方法解决，具体原因不得而知。参考资料
/ointall/mysql/bin/mysqld_safe --defaults-file=/etc/my.cnf
到这里，mysql安装已经全部结束。接下来是登陆问题，安装完mysql后无法正常登陆，不管是随机密码。还是空密码都不行
[root@mysql bin]# mysql
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
[root@mysql bin]# mysql -uroot -prgVLupUj0W#
mysql: [Warning] Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
[root@mysql bin]# mysql -uroot -p
Enter password:
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
这时候我们修改/etc/my.cnf配置文件，在[mysqld]里面加一条如下参数。上的配置文件我已经给出了，只要去掉注释即可
skip-grant-tables
#重启mysql服务
/etc/init.d/mysqld restart
重新登陆mysql，按照下面的步骤进行修改密码
[root@mysql bin]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 8.0.20 MySQL Community Server - GPLCopyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)mysql> alter user 'root'@'localhost' identified by 'Newings@123';
Query OK, 0 rows affected (0.00 sec)mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)mysql> exit
Bye
以上操作完成后将skip-grant-tables改参数注释掉然后重新起mysql服务。再次使用修改后的密码就可以正常登陆了。参考资料
[root@mysql bin]# vim /etc/my.cnf
[root@mysql bin]# /etc/init.d/mysqld restart
Shutting down MySQL.. SUCCESS!
Starting MySQL. SUCCESS!
[root@mysql bin]# mysql -uroot -pNewings@123
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.20 MySQL Community Server - GPLCopyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.mysql> exit
Bye
附/etc/init.d/mysql修改后的配置
#!/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 $remote_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop MySQL
# Description: MySQL is a very fast and reliable SQL database engine.
### END INIT INFO# If you install MySQL on some other places than /usr/local/mysql, then you
# have to do one of the following things for this script to work:
#
# - Run this script from within the MySQL installation directory
# - Create a /etc/my.cnf file with the following information:
# [mysqld]
# basedir=<path-to-mysql-installation-directory>
# - Add the above to any other configuration file (for example ~/.my.ini)
# and copy my_print_defaults to /usr/bin
# - Add the path to the mysql-installation-directory to the basedir variable
# below.
#
# If you want to affect other MySQL variables, you should make your changes
# in the /etc/my.cnf, ~/.my.cnf or other MySQL configuration files.# If you change base dir, you must also change datadir. These may get
# overwritten by settings in the MySQL configuration files.basedir=
datadir=# Default value, in seconds, afterwhich the script should timeout waiting
# for server start.
# Value here is overriden by value in my.cnf.
# 0 means don't wait at all
# Negative numbers mean to wait indefinitely
service_startup_timeout=900# Lock directory for RedHat / SuSE.
lockdir='/var/lock/subsys'
lock_file_path="$lockdir/mysql"# The following variables are only set for letting mysql.server find things.# Set some defaults
mysqld_pid_file_path=
if test -z "$basedir"
thenbasedir=/ointall/mysqlbindir=/ointall/mysql/binif test -z "$datadir"thendatadir=/oradata/datafisbindir=/ointall/mysql/binlibexecdir=/ointall/mysql/bin
elsebindir="$basedir/bin"if test -z "$datadir"thendatadir="/oradata/data"fisbindir="$basedir/sbin"libexecdir="$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
elselog_success_msg(){echo " SUCCESS! $@"}log_failure_msg(){echo " ERROR! $@"}
fiPATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin"
export PATHmode=$1 # start or stop[ $# -ge 1 ] && shiftother_args="$*" # 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' ;;
esacparse_server_arguments() {for arg docase "$arg" in--basedir=*) basedir=`echo "$arg" | sed -e 's/^[^=]*=//'`bindir="$basedir/bin"if test -z "$datadir_set"; thendatadir="/oradata/data"fisbindir="$basedir/sbin"libexecdir="$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/^[^=]*=//'` ;;esacdone
}wait_for_pid () {verb="$1" # created | removedpid="$2" # process ID of the program operating on the pid-filepid_file_path="$3" # path to the PID file.i=0avoid_race_condition="by checking again"while test $i -ne $service_startup_timeout ; docase "$verb" in'created')# wait for a PID-file to pop into existence.test -s "$pid_file_path" && i='' && break;;'removed')# wait for this PID-file to disappeartest ! -s "$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 updatedif test -n "$pid"; thenif kill -0 "$pid" 2>/dev/null; then: # the server still runselse# The server may have exited between the last pid-file check and now. if test -n "$avoid_race_condition"; thenavoid_race_condition=""continue # Check again.fi# there's nothing that will affect the file.log_failure_msg "The server quit without updating PID file ($pid_file_path)."return 1 # not waiting any more.fifiecho $echo_n ".$echo_c"i=`expr $i + 1`sleep 1doneif test -z "$i" ; thenlog_success_msgreturn 0elselog_failure_msgreturn 1fi
}# Get arguments from the my.cnf file,
# the only group, which is read from now on is [mysqld]
if test -x "$bindir/my_print_defaults"; thenprint_defaults="$bindir/my_print_defaults"
else# Try to find basedir in /etc/my.cnfconf=/etc/my.cnfprint_defaults=if test -r $confthensubpat='^[^=]*basedir[^=]*=\(.*\)$'dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf`for d in $dirsdod=`echo $d | sed -e 's/[ ]//g'`if test -x "$d/bin/my_print_defaults"thenprint_defaults="$d/bin/my_print_defaults"breakfidonefi# Hope it's in the PATH ... but I doubt ittest -z "$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 "$basedir/my.cnf"
thenextra_args="-e $basedir/my.cnf"
fiparse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server`#
# Set pid file if not given
#
if test -z "$mysqld_pid_file_path"
thenmysqld_pid_file_path=$datadir/`hostname`.pid
elsecase "$mysqld_pid_file_path" in/* ) ;;* ) mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;;esac
ficase "$mode" in'start')# Start daemon# Safeguard (relative paths, core dumps..)cd $basedirecho $echo_n "Starting MySQL"if test -x $bindir/mysqld_safethen# Give extra arguments to mysqld with the my.cnf file. This script# may be overwritten at next upgrade.$bindir/mysqld_safe --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 / SuSEif test -w "$lockdir"thentouch "$lock_file_path"fiexit $return_valueelselog_failure_msg "Couldn't find MySQL server ($bindir/mysqld_safe)"fi;;'stop')# Stop daemon. We use a signal here to avoid having to know the# root password.if test -s "$mysqld_pid_file_path"then# signal mysqld_safe that it needs to stoptouch "$mysqld_pid_file_path.shutdown"mysqld_pid=`cat "$mysqld_pid_file_path"`if (kill -0 $mysqld_pid 2>/dev/null)thenecho $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" "$mysqld_pid_file_path"; return_value=$?elselog_failure_msg "MySQL server process #$mysqld_pid is not running!"rm "$mysqld_pid_file_path"fi# Delete lock for RedHat / SuSEif test -f "$lock_file_path"thenrm -f "$lock_file_path"fiexit $return_valueelselog_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 $other_argselselog_failure_msg "Failed to stop running server, so refusing to try to start."exit 1fi;;'reload'|'force-reload')if test -s "$mysqld_pid_file_path" ; thenread mysqld_pid < "$mysqld_pid_file_path"kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL"touch "$mysqld_pid_file_path"elselog_failure_msg "MySQL PID file could not be found!"exit 1fi;;'status')# First, check to see if pid file existsif 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 0elselog_failure_msg "MySQL is not running, but PID file exists"exit 1fielse# Try to find appropriate mysqld processmysqld_pid=`pidof $libexecdir/mysqld`# test if multiple pids existpid_count=`echo $mysqld_pid | wc -w`if test $pid_count -gt 1 ; thenlog_failure_msg "Multiple MySQL running but PID file could not be found ($mysqld_pid)"exit 5elif 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 2fi log_failure_msg "MySQL is not running"exit 3elselog_failure_msg "MySQL is running but PID file could not be found"exit 4fifi;;*)# usagebasename=`basename "$0"`echo "Usage: $basename {start|stop|restart|reload|force-reload|status} [ MySQL server options ]"exit 1;;
esacexit 0
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