#下载 mysql8 的源码包
wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-boost-8.0.17.tar.gz
#安装centos7 的依赖包
yum -y install make cmake gcc gcc-c++ gcc-g77 flex bison file\ libtool libtool-libs autoconf kernel-devel patch wget crontabs\ libjpeg libjpeg-devel libpng libpng-devel libpng10 libpng10-devel\ gd gd-devel libxml2 libxml2-devel zlib zlib-devel glib2 glib2-devel\ unzip tar bzip2 bzip2-devel libzip-devel libevent libevent-devel\ ncurses ncurses-devel curl curl-devel libcurl libcurl-devel e2fsprogs\ e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel\ vim-minimal gettext gettext-devel ncurses-devel gmp-devel pspell-devel\ unzip libcap diffutils ca-certificates net-tools libc-client-devel\ psmisc libXpm-devel git-core c-ares-devel libicu-devel libxslt\ libxslt-devel xz expat-devel libaio-devel rpcgen libtirpc-devel perl
#安装高版本的gcc ,yum 安装默认安装的是 4.8.15版本
编译mysql8 需要gcc 5.3以上版本。
yum install centos-release-scl yum install devtoolset-7 scl enable devtoolset-7 bash source /opt/rh/devtoolset-7/enable
#这个时候 gcc 的版本编程了5.3以上。
删除mysql8源码目录里面的CMakeCache.txt文件,重新执行cmake 命令。
cmake . -DCMAKE_INSTALL_PREFIX=/home/mysql8/mysql\ -DSYSCONFDIR=/etc -DWITH_MYISAM_STORAGE_ENGINE=1\ -DWITH_INNOBASE_STORAGE_ENGINE=1 -DWITH_PARTITION_STORAGE_ENGINE=1\ -DWITH_FEDERATED_STORAGE_ENGINE=1 -DEXTRA_CHARSETS=all -DDEFAULT_CHARSET=utf8\ -DDEFAULT_COLLATION=utf8_general_ci -DWITH_READLINE=1\ -DWITH_EMBEDDED_SERVER=1\ -DENABLED_LOCAL_INFILE=1\ -DFORCE_INSOURCE_BUILD=1\ -DDOWNLOAD_BOOST=1\ -DWITH_BOOST=./boost
#cmake 执行成功后
make make install
#配置my.cnf 文件
vim /etc/my.cnf
内容如下:
[client] #password = your_password port = 3306 socket = /home/mysql8/tmp/mysql.sock default-character-set=utf8 #[mysqld_multi] #mysqld=/home/mysql8/mysql/bin/mysqld_safe #mysqladmin=/home/mysql8/mysql/bin/mysqladmin [mysqld] port = 3306 socket = /home/mysql8/tmp/mysql.sock datadir =/home/mysql8/data basedir =/home/mysql8/mysql tmpdir =/home/mysql8/data log-error=/home/mysql8/data/logerror.err pid-file=/home/mysql8/data/localhost.pid log-bin=mysql-bin binlog_format=mixed server_id = 1 #skip-locking skip-external-locking key_buffer_size = 512M max_allowed_packet = 50M table_open_cache = 2048 sort_buffer_size = 8M net_buffer_length = 8K read_buffer_size = 8M read_rnd_buffer_size = 512K myisam_sort_buffer_size = 128M thread_cache_size = 256 tmp_table_size = 256M max_connections = 500 max_connect_errors = 100 open_files_limit = 65535 default_storage_engine = InnoDB innodb_file_per_table = 1 innodb_data_home_dir = /home/mysql8/data innodb_data_file_path = ibdata1:10M:autoextend innodb_log_group_home_dir = /home/mysql8/data innodb_buffer_pool_size = 2048M innodb_log_file_size = 512M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 1 innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [myslqd_safe] pid-file=/home/mysql8/data/localhost.pid log-error=/home/mysql8/data/logerror.err [mysql] no-auto-rehash [myisamchk] key_buffer_size = 512M sort_buffer_size = 8M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout
#初始化
/home/mysql8/mysql/bin/mysqld --initialize --console --user=mysql
设置mysql 启动,把下面文件 添加到 /etc/init.d/mysql
chkconfig mysql on #这句是加载配置 #下面内容是/etc/init.d/mysql 文件内容。可以根据自己的路径修改里面的相关路径。
#!/bin/sh basedir=/home/mysql8/mysql datadir=/home/mysql8/data conf=/home/mysql8/etc/my.cnf service_startup_timeout=900 # Lock directory for RedHat / SuSE. lockdir='/home/mysql8/etc' 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" then basedir=/home/mysql8/mysql bindir=/home/mysql8/mysql/bin if test -z "$datadir" then datadir=/home/mysql8/mysql/data fi sbindir=/home/mysql8/mysql/bin libexecdir=/home/mysql8/mysql/bin else bindir="$basedir/bin" if test -z "$datadir" then datadir="$basedir/data" fi sbindir="$basedir/sbin" libexecdir="$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 else log_success_msg() { echo " SUCCESS! $@" } log_failure_msg() { echo " ERROR! $@" } fi PATH="/sbin:/usr/sbin:/bin:/usr/bin:$basedir/bin" export PATH mode=$1 # start or stop [ $# -ge 1 ] && shift other_args="$*" # 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' ;; esac parse_server_arguments() { for arg do case "$arg" in --basedir=*) basedir=`echo "$arg" | sed -e 's/^[^=]*=//'` bindir="$basedir/bin" if test -z "$datadir_set"; then datadir="$basedir/data" fi sbindir="$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/^[^=]*=//'` ;; esac done } wait_for_pid () { verb="$1" # created | removed pid="$2" # process ID of the program operating on the pid-file pid_file_path="$3" # path to the PID file. i=0 avoid_race_condition="by checking again" while test $i -ne $service_startup_timeout ; do case "$verb" in 'created') # wait for a PID-file to pop into existence. test -s "$pid_file_path" && i='' && break ;; 'removed') # wait for this PID-file to disappear test ! -s "$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 updated if test -n "$pid"; then if kill -0 "$pid" 2>/dev/null; then : # the server still runs else # The server may have exited between the last pid-file check and now. if test -n "$avoid_race_condition"; then avoid_race_condition="" continue # Check again. fi # there's nothing that will affect the file. log_failure_msg "The server quit without updating PID file ($pid_file_path)." return 1 # not waiting any more. fi fi echo $echo_n ".$echo_c" i=`expr $i + 1` sleep 1 done if test -z "$i" ; then log_success_msg return 0 else log_failure_msg return 1 fi } # Get arguments from the my.cnf file, # the only group, which is read from now on is [mysqld] if test -x "$bindir/my_print_defaults"; then print_defaults="$bindir/my_print_defaults" else # Try to find basedir in /etc/my.cnf conf=/home/mysql8/etc/my.cnf print_defaults= if test -r $conf then subpat='^[^=]*basedir[^=]*=\(.*\)$' dirs=`sed -e "/$subpat/!d" -e 's//\1/' $conf` for d in $dirs do d=`echo $d | sed -e 's/[ ]//g'` if test -x "$d/bin/my_print_defaults" then print_defaults="$d/bin/my_print_defaults" break fi done fi # Hope it's in the PATH ... but I doubt it test -z "$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" then extra_args="-e $basedir/my.cnf" else if test -r "$datadir/my.cnf" then extra_args="-e $datadir/my.cnf" fi fi extra_args="-e $conf" parse_server_arguments `$print_defaults $extra_args mysqld server mysql_server mysql.server` # # Set pid file if not given # if test -z "$mysqld_pid_file_path" then mysqld_pid_file_path=$datadir/`hostname`.pid else case "$mysqld_pid_file_path" in /* ) ;; * ) mysqld_pid_file_path="$datadir/$mysqld_pid_file_path" ;; esac fi case "$mode" in 'start') # Start daemon # Safeguard (relative paths, core dumps..) cd $basedir echo $echo_n "Starting xfcloudsql" if test -x $bindir/mysqld_safe then # Give extra arguments to mysqld with the my.cnf file. This script # may be overwritten at next upgrade. #$bindir/mysqld_safe --defaults-file="/home/mysql8/etc/my.cnf" --basedir="/home/mysql8/mysql" --datadir="/home/mysql8/data" --log-error="/home/mysql8/mysql/data/mysql.err" --socket="/home/mysql8/tmp/mysql.sock" --pid-file="/home/mysql8/data/localhost.pid" --user=mysql $other_args start 1 >/dev/null & $bindir/mysqld_safe --defaults-file=/home/mysql8/etc/my.cnf --user=mysql $other_args >/dev/null & wait_for_pid created "$!" "$mysqld_pid_file_path"; return_value=$? # Make lock for RedHat / SuSE if test -w "$lockdir" then touch "$lock_file_path" fi exit $return_value else log_failure_msg "Couldn't find MySQL server ($bindir/mysqld_safe)" fi ;; 'stop') # Stop daemon. We use a signal here to avoid having to know the # root password. if test -s "$mysqld_pid_file_path" then mysqld_pid=`cat "$mysqld_pid_file_path"` if (kill -0 $mysqld_pid 2>/dev/null) then echo $echo_n "Shutting down xfcloudsql" kill $mysqld_pid # mysqld should remove the pid file when it exits, so wait for it. wait_for_pid removed "$mysqld_pid" "$mysqld_pid_file_path"; return_value=$? else log_failure_msg "MySQL server process #$mysqld_pid is not running!" rm "$mysqld_pid_file_path" fi # Delete lock for RedHat / SuSE if test -f "$lock_file_path" then rm -f "$lock_file_path" fi exit $return_value else log_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 $other_args else log_failure_msg "Failed to stop running server, so refusing to try to start." exit 1 fi ;; 'reload'|'force-reload') if test -s "$mysqld_pid_file_path" ; then read mysqld_pid < "$mysqld_pid_file_path" kill -HUP $mysqld_pid && log_success_msg "Reloading service MySQL" touch "$mysqld_pid_file_path" else log_failure_msg "MySQL PID file could not be found!" exit 1 fi ;; 'status') # First, check to see if pid file exists if 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 0 else log_failure_msg "MySQL is not running, but PID file exists" exit 1 fi else # Try to find appropriate mysqld process mysqld_pid=`pidof $libexecdir/mysqld` # test if multiple pids exist pid_count=`echo $mysqld_pid | wc -w` if test $pid_count -gt 1 ; then log_failure_msg "Multiple MySQL running but PID file could not be found ($mysqld_pid)" exit 5 elif 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 2 fi log_failure_msg "MySQL is not running" exit 3 else log_failure_msg "MySQL is running but PID file could not be found" exit 4 fi fi ;; *) # usage basename=`basename "$0"` echo "Usage: $basename {start|stop|restart|reload|force-reload|status} [ MySQL server options ]" exit 1 ;; esac exit 0
#启动mysql
services mysql start|stop|restart|status
#设置密码
日志文件里面记录下了初始化mysql后的root 零时密码:
2021-05-13T05:50:23.674835Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: HZ+o4BrLBfrg
通过grep命令查找出这条日志,用awk命令获得密码 HZ+o4BrLBfrg
查看上面那行日志,可以知道 密码正在此行的第13列
用 awk '{ print $13 }' 可以获得密码值。
# 得到密码
DEF_INSTALL_PSSWD =$(cat /home/mysql8/data/logerror.err |grep 'root@localhost' | awk '{ print $13 }')
#修改root密码
#修改安装的零时密码为设置的密码
/home/mysql8/mysql/bin/mysqladmin -uroot -p${DEF_INSTALL_PSSWD} password ${DP}