MySQL運(yùn)維實(shí)戰(zhàn)使用RPM進(jìn)行安裝部署
MySQL使用RPM安裝部署
我們?cè)谏a(chǎn)環(huán)境部署mysql時(shí),一般很少使用RedHat Package Manager(RedHat軟件包管理工具)。用rpm或或者其他包管理器安裝mysql有其好處,例如安裝簡(jiǎn)單,并且許多系統(tǒng)可能已經(jīng)自帶了某個(gè)版本的MySQL。
當(dāng)然,使用RPM安裝也存在一些缺點(diǎn):
- 1、rpm依賴包的問(wèn)題。如果刪除線上機(jī)器的沖突包,可能引起其他軟件運(yùn)行異常。
- 2、多版本管理不方便。升級(jí)mysql或降級(jí)mysql不方便。無(wú)法多個(gè)版本同時(shí)運(yùn)行。
- 3、單機(jī)多實(shí)例管理不方便。
但是,對(duì)于我們數(shù)據(jù)庫(kù)管理員,需要掌握如何使用rpm包安裝mysql。因?yàn)楹芸赡苄枰幚碛眠@種方式安裝的mysql遇到的一些問(wèn)題,如數(shù)據(jù)庫(kù)無(wú)法啟動(dòng)、默認(rèn)路徑空間占滿,需要將數(shù)據(jù)需要換到別的磁盤、調(diào)整參數(shù)等。
1 環(huán)境
CentOS 7.9
[root@box1 software]# cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core) [root@box1 software]# uname -a Linux box1 3.10.0-1160.el7.x86_64 #1 SMP Mon Oct 19 16:18:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
2 RPM安裝
2.1下載RPM安裝包
到官網(wǎng)https://dev.mysql.com/downloads/mysql/下載社區(qū)版,歷史版本點(diǎn)擊“Archives”下載。
建議選擇下載 RPM Bundle包,里面包含了需要的各個(gè)rpm包解壓bundle包,可以看到里面的rpm包
# tar xf mysql-5.7.44-1.el7.x86_64.rpm-bundle.tar -C rpm/5.7/ # [root@box1 5.7]# ls -lh 總用量 1.1G -rw-r--r--. 1 root root 518M 9月 25 2020 mysql-5.7.32-1.el7.x86_64.rpm-bundle.tar -rw-r--r--. 1 7155 31415 26M 9月 25 2020 mysql-community-client-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 308K 9月 25 2020 mysql-community-common-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 3.8M 9月 25 2020 mysql-community-devel-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 46M 9月 25 2020 mysql-community-embedded-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 23M 9月 25 2020 mysql-community-embedded-compat-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 125M 9月 25 2020 mysql-community-embedded-devel-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 2.4M 9月 25 2020 mysql-community-libs-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 1.3M 9月 25 2020 mysql-community-libs-compat-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 174M 9月 25 2020 mysql-community-server-5.7.32-1.el7.x86_64.rpm -rw-r--r--. 1 7155 31415 120M 9月 25 2020 mysql-community-test-5.7.32-1.el7.x86_64.rpm
2.2安裝rpm包
需要安裝mysql-community-server, mysql-community-common, mysql-community-client, mysql-community-libs這些包
[root@box1 5.7]# rpm -ivh mysql-community-client-5.7.32-1.el7.x86_64.rpm mysql-community-common-5.7.32-1.el7.x86_64.rpm mysql-community-server-5.7.32-1.el7.x86_64.rpm mysql-community-libs-5.7.32-1.el7.x86_64.rpm 警告:mysql-community-client-5.7.32-1.el7.x86_64.rpm: 頭V3 DSA/SHA1 Signature, 密鑰 ID 5072e1f5: NOKEY 錯(cuò)誤:依賴檢測(cè)失敗: mariadb-libs 被 mysql-community-libs-5.7.32-1.el7.x86_64 取代
2.3卸載沖突的包
安裝報(bào)錯(cuò),因?yàn)橄到y(tǒng)里已經(jīng)安裝了mariadb相關(guān)lib,需要先將這些lib卸載
[root@box1 5.7]# rpm -qa | grep maria mariadb-devel-5.5.68-1.el7.x86_64 mariadb-libs-5.5.68-1.el7.x86_64 [root@box1 5.7]# rpm -evf mariadb-devel-5.5.68-1.el7.x86_64 mariadb-libs-5.5.68-1.el7.x86_64 錯(cuò)誤:依賴檢測(cè)失?。? libmysqlclient.so.18()(64bit) 被 (已安裝) net-snmp-agent-libs-1:5.7.2-49.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) net-snmp-1:5.7.2-49.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) postfix-2:2.10.1-9.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) qt-mysql-1:4.8.7-8.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) qt5-qtbase-mysql-5.9.7-4.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) qt3-MySQL-3.3.8b-51.el7.x86_64 需要 libmysqlclient.so.18()(64bit) 被 (已安裝) MySQL-python-1.2.5-1.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) net-snmp-agent-libs-1:5.7.2-49.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) postfix-2:2.10.1-9.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) qt-mysql-1:4.8.7-8.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) qt5-qtbase-mysql-5.9.7-4.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) qt3-MySQL-3.3.8b-51.el7.x86_64 需要 libmysqlclient.so.18(libmysqlclient_18)(64bit) 被 (已安裝) MySQL-python-1.2.5-1.el7.x86_64 需要 mysql-libs 被 (已安裝) net-snmp-1:5.7.2-49.el7.x86_64 需要 ### 加--nodeps強(qiáng)制卸載mariadb lib [root@box1 5.7]# rpm -ev --nodeps mariadb-devel-5.5.68-1.el7.x86_64 mariadb-libs-5.5.68-1.el7.x86_64 軟件包準(zhǔn)備中... mariadb-devel-1:5.5.68-1.el7.x86_64 mariadb-libs-1:5.5.68-1.el7.x86_64
卸載完mariadb lib包之后重新安裝
[root@box1 5.7]# rpm -ivh mysql-community-client-5.7.32-1.el7.x86_64.rpm mysql-community-common-5.7.32-1.el7.x86_64.rpm mysql-community-server-5.7.32-1.el7.x86_64.rpm mysql-community-libs-5.7.32-1.el7.x86_64.rpm 警告:mysql-community-client-5.7.32-1.el7.x86_64.rpm: 頭V3 DSA/SHA1 Signature, 密鑰 ID 5072e1f5: NOKEY 準(zhǔn)備中... ################################# [100%] 正在升級(jí)/安裝... 1:mysql-community-common-5.7.32-1.e################################# [ 25%] 2:mysql-community-libs-5.7.32-1.el7################################# [ 50%] 3:mysql-community-client-5.7.32-1.e################################# [ 75%] 4:mysql-community-server-5.7.32-1.e################################# [100%]
2.4安裝完之后的相關(guān)文件
/usr/bin目錄下,主要是mysql相關(guān)的客戶端命令、管理命令
[root@box1 5.7]# ls /usr/bin/mysql* /usr/bin/mysql /usr/bin/mysqlcheck /usr/bin/mysqldump /usr/bin/mysql_install_db /usr/bin/mysql_secure_installation /usr/bin/mysql_ssl_rsa_setup /usr/bin/mysqladmin /usr/bin/mysql_config_editor /usr/bin/mysqldumpslow /usr/bin/mysql_plugin /usr/bin/mysqlshow /usr/bin/mysql_tzinfo_to_sql /usr/bin/mysqlbinlog /usr/bin/mysqld_pre_systemd /usr/bin/mysqlimport /usr/bin/mysqlpump /usr/bin/mysqlslap /usr/bin/mysql_upgrade
/usr/sbin
mysqld,mysql服務(wù)器的可執(zhí)行文件
[root@box1 5.7]# ls /usr/sbin/mysql* /usr/sbin/mysqld /usr/sbin/mysqld-debug
/usr/lib64/mysql
mysql client lib和plugin lib
[root@box1 5.7]# ls /usr/lib64/mysql/ libmysqlclient.so.20 libmysqlclient.so.20.3.19 mecab plugin
/usr/share/mysql
主要是mysql字符集和error msg相關(guān)文件
[root@box1 5.7]# ls /usr/share/mysql/ bulgarian dictionary.txt estonian greek italian mysql-log-rotate mysql_system_tables.sql polish serbian ukrainian charsets dutch fill_help_tables.sql hungarian japanese mysql_security_commands.sql mysql_test_data_timezone.sql portuguese slovak uninstall_rewriter.sql czech english french innodb_memcached_config.sql korean mysql_sys_schema.sql norwegian romanian spanish danish errmsg-utf8.txt german install_rewriter.sql magic mysql_system_tables_data.sql norwegian-ny russian swedish
/etc/my.cnf
配置文件
/var/lib/mysql
mysql數(shù)據(jù)文件
[root@box1 5.7]# ls /var/lib/mysql* /var/lib/mysql: /var/lib/mysql-files: /var/lib/mysql-keyring:
啟動(dòng)腳本
服務(wù)啟動(dòng)文件 /etc/systemd/system/multi-user.target.wants/mysqld.service
數(shù)據(jù)庫(kù)初始化腳本 /usr/bin/mysqld_pre_systemd
3 啟動(dòng)mysql
使用service 啟動(dòng)mysql實(shí)例
[root@box1 5.7]# service mysqld start Redirecting to /bin/systemctl start mysqld.service
[root@box1 5.7]# ps -elf | grep mysqld 1 S mysql 12663 1 0 80 0 - 280540 poll_s 08:17 ? 00:00:00 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid 0 S root 12959 2276 0 80 0 - 28206 pipe_w 08:21 pts/0 00:00:00 grep --color=auto mysqld
4 登陸mysql
第一次安裝后,會(huì)生產(chǎn)mysql root賬號(hào)的默認(rèn)的臨時(shí)密碼,可以在/var/log/mysql.log中找到。
用臨時(shí)密碼登陸后,需要修改密碼才能進(jìn)行操作
[root@box1 5.7]# grep -i pass /var/log/mysqld.log 2021-03-31T12:14:47.169374Z 1 [Note] A temporary password is generated for root@localhost: _0eaf&hyQ9Ha 2021-03-31T12:23:26.373529Z 2 [Note] Access denied for user 'root'@'localhost' (using password: NO) [root@box1 5.7]# mysql -uroot -h127.0.0.1 -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.32 Copyright (c) 2000, 2020, 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> select 1; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. mysql> alter user 'root'@'localhost' identified by 'helloWorld#'; ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> alter user 'root'@'localhost' identified by 'helloWorld#123'; Query OK, 0 rows affected (0.00 sec) mysql> select now(); +---------------------+ | now() | +---------------------+ | 2021-03-31 08:27:57 | +---------------------+ 1 row in set (0.00 sec)
5 關(guān)于mysql初始化
使用service啟動(dòng)mysql時(shí),初次使用mysql,會(huì)執(zhí)行腳本/usr/bin/mysqld_pre_systemd進(jìn)行初始化,
腳本里進(jìn)行了幾個(gè)重要操作
- 往mysql.plugin里添加validate_password插件
- 使用mysqld --initialize初始化mysql系統(tǒng)數(shù)據(jù)庫(kù)
- 使用mysql_ssl_rsa_setup創(chuàng)建ssl證書文件
# more /usr/bin/mysqld_pre_systemd ... install_validate_password_sql_file () { local initfile initfile="$(mktemp /var/lib/mysql-files/install-validate-password-plugin.XXXXXX.sql)" chmod a+r "$initfile" echo "SET @@SESSION.SQL_LOG_BIN=0;" > "$initfile" echo "INSERT INTO mysql.plugin (name, dl) VALUES ('validate_password', 'validate_password.so');" >> $initfile echo $initfile } ... # If special mysql dir is in place, skip db install [ -d "$datadir/mysql" ] && exit 0 # Create initial db and install validate_password plugin initfile="$(install_validate_password_sql_file)" /usr/sbin/mysqld ${instance:+--defaults-group-suffix=@$instance} --initialize \ --datadir="$datadir" --user=mysql --init-file="$initfile" rm -f "$initfile" # Generate certs if needed if [ -x /usr/bin/mysql_ssl_rsa_setup -a ! -e "${datadir}/server-key.pem" ] ; then /usr/bin/mysql_ssl_rsa_setup --datadir="$datadir" --uid=mysql >/dev/null 2>&1 fi
以上就是MySQL運(yùn)維實(shí)戰(zhàn)使用RPM進(jìn)行安裝部署的詳細(xì)內(nèi)容,更多關(guān)于MySQL RPM安裝部署的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章!
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