共計(jì) 9943 個(gè)字符，預(yù)計(jì)需要花費(fèi) 25 分鐘才能閱讀完成。
這篇文章主要介紹“CentOS7 安裝 MySQL5.6 遇到的問(wèn)題怎么解決”，在日常操作中，相信很多人在 CentOS7 安裝 MySQL5.6 遇到的問(wèn)題怎么解決問(wèn)題上存在疑惑，丸趣 TV 小編查閱了各式資料，整理出簡(jiǎn)單好用的操作方法，希望對(duì)大家解答”CentOS7 安裝 MySQL5.6 遇到的問(wèn)題怎么解決”的疑惑有所幫助！接下來(lái)，請(qǐng)跟著丸趣 TV 小編一起來(lái)學(xué)習(xí)吧！
在一測(cè)試服務(wù)器（centos linux release 7.2.1511）上安裝 mysql 5.6（5.6.19 mysql community server）時(shí)遇到下面錯(cuò)誤，這個(gè)是因?yàn)?centos 7 的默認(rèn)數(shù)據(jù)庫(kù)已經(jīng)不再是 mysql 了，而是 mariadb. mysql 安裝時(shí)的 mysql lib 庫(kù)與 mariadb 的庫(kù)、包沖突了，如下詳情所示（省略了大量日志）
[root@azrlnx06 tmp]# rpm -ivh mysql-server-advanced-5.6.20-1.rhel5.x86_64.rpm
preparing... ################################# [100%]
file /usr/share/mysql/czech/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/danish/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/dutch/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/english/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/estonian/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/french/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/german/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/greek/errmsg.sys from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
........................................................................................................................................................................
file /usr/share/mysql/charsets/macroman.xml from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64
file /usr/share/mysql/charsets/swe7.xml from install of mysql-server-advanced-5.6.20-1.rhel5.x86_64 conflicts with file from package mariadb-libs-1:5.5.50-1.el7_2.x86_64檢查是否存在 mariadb 的相關(guān)組件, 然后刪除 mariadb 相關(guān)組件。如下所示：
[root@azrlnx06 mysql]# more /etc/redhat-release
centos linux release 7.2.1511 (core)
[root@azrlnx06 mysql]# rpm -qa |grep mariadb
mariadb-libs-5.5.50-1.el7_2.x86_64
[root@azrlnx06 mysql]# rpm -e mariadb-libs-5.5.50-1.el7_2.x86_64
error: failed dependencies:
libmysqlclient.so.18()(64bit) is needed by (installed) postfix-2:2.10.1-6.el7.x86_64
libmysqlclient.so.18(libmysqlclient_18)(64bit) is needed by (installed) postfix-2:2.10.1-6.el7.x86_64
[root@azrlnx06 mysql]# rpm -e mariadb-libs-5.5.50-1.el7_2.x86_64 --nodeps當(dāng)然此處刪除 mariadb-libs-5.5.50-1.el7_2.x86_64 組件時(shí)遇到依賴錯(cuò)誤，遂強(qiáng)制刪除該組件，最好使用 yum 刪除 mariadb 相關(guān)組件。然后重新安裝 mysql 時(shí)遇到 error: mysql-server-advanced-5.6.20-1.rhel5.x86_64: install failed 錯(cuò)誤，如下所示：
[root@azrlnx06 mysql]# cd /tmp
[root@azrlnx06 tmp]# ls
hsperfdata_azrlnx06 jirasetup mysql-server-advanced-5.6.20-1.rhel5.x86_64.rpm
[root@azrlnx06 tmp]# rpm -ivh mysql-server-advanced-5.6.20-1.rhel5.x86_64.rpm
preparing... ################################# [100%]
updating / installing...
1:mysql-server-advanced-5.6.20-1.rh################################# [100%]
error: unpacking of archive failed on file /usr/bin/innochecksum;582535c8: cpio: read failed - no such file or directory
error: mysql-server-advanced-5.6.20-1.rhel5.x86_64: install failed
[root@azrlnx06 tmp]#
clip_image001對(duì)這個(gè)錯(cuò)誤有點(diǎn)莫名其妙，卸載 mysql 相關(guān)組件后，重新安裝 mysql，發(fā)現(xiàn)缺少 perl 相關(guān)模組。如下所示：
[root@azrlnx06 jirasetup]# rpm -ivh mysql-server-advanced-5.6.20-1.rhel5.x86_64.rpm
preparing... ################################# [100%]
updating / installing...
1:mysql-server-advanced-5.6.20-1.rh################################# [100%]
fatal error: please install the following perl modules before executing /usr/bin/mysql_install_db:
data::dumper
[root@azrlnx06 jirasetup]#使用 yum 安裝了 perl perl-devel 相關(guān)包（注意：此處安裝 mysql 時(shí)，沒(méi)有輸出安裝相關(guān) detail 的信息，是因?yàn)?perl 相關(guān)模組沒(méi)有安裝的緣故，此處還漏掉了安裝 perl-data-dumper）
[root@azrlnx06 jirasetup]# yum install -y perl perl-devel安裝完 perl 相關(guān)組件后，重新安裝 mysql，如下所示，安裝成功，但是沒(méi)有輸出安裝相關(guān) detail 的信息（因?yàn)闆](méi)有安裝 perl-data-dumper），啟動(dòng) mysql 報(bào)錯(cuò)
root@azrlnx06 jirasetup]# rpm -ivh mysql-server-advanced-5.6.20-1.rhel5.x86_64.rpm
preparing... ################################# [100%]
updating / installing...
1:mysql-server-advanced-5.6.20-1.rh################################# [100%]
[root@azrlnx06 jirasetup]# rpm -ivh mysql-client-advanced-5.6.20-1.rhel5.x86_64.rpm
preparing... ################################# [100%]
updating / installing...
1:mysql-client-advanced-5.6.20-1.rh################################# [100%]
[root@azrlnx06 ~]# service mysql start
starting mysql............. error! the server quit without updating pid file (/var/lib/mysql/azrlnx06.pid).
[root@azrlnx06 ~]#找到 mysql 的錯(cuò)誤日志，然后檢查 /var/lib/mysql/azrlnx06.err 錯(cuò)誤日志，發(fā)現(xiàn)如下錯(cuò)誤信息：
[root@azrlnx06 mysql]# find / -name *.err
/var/lib/mysql/azrlnx06.err
/var/log/azure/microsoft.ostcextensions.linuxdiagnostic/2.3.9011/mdsd.err
/var/log/azure/microsoft.ostcextensions.linuxdiagnostic/2.3.9013/mdsd.err
/var/log/mdsd/mdsd.err
[root@azrlnx06 mysql]# more /var/lib/mysql/azrlnx06.err
161111 03:28:25 mysqld_safe starting mysqld daemon with databases from /var/lib/mysql
2016-11-11 03:28:25 0 [warning] timestamp with implicit default value is deprecated. please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2016-11-11 03:28:25 2144 [note] plugin federated is disabled.
/usr/sbin/mysqld: table mysql.plugin doesn t exist
2016-11-11 03:28:25 2144 [error] can t open the mysql.plugin table. please run mysql_upgrade to create it.
2016-11-11 03:28:25 2144 [note] innodb: using atomics to ref count buffer pool pages
2016-11-11 03:28:25 2144 [note] innodb: the innodb memory heap is disabled
2016-11-11 03:28:25 2144 [note] innodb: mutexes and rw_locks use gcc atomic builtins
2016-11-11 03:28:25 2144 [note] innodb: memory barrier is not used
2016-11-11 03:28:25 2144 [note] innodb: compressed tables use zlib 1.2.3
2016-11-11 03:28:25 2144 [note] innodb: using linux native aio
2016-11-11 03:28:25 2144 [note] innodb: using cpu crc32 instructions
2016-11-11 03:28:25 2144 [note] innodb: initializing buffer pool, size = 128.0m
2016-11-11 03:28:25 2144 [note] innodb: completed initialization of buffer pool
2016-11-11 03:28:25 2144 [note] innodb: the first specified data file ./ibdata1 did not exist: a new database to be created!
2016-11-11 03:28:25 2144 [note] innodb: setting file ./ibdata1 size to 12 mb
2016-11-11 03:28:25 2144 [note] innodb: database physically writes the file full: wait...
2016-11-11 03:28:26 2144 [note] innodb: setting log file ./ib_logfile101 size to 48 mb
2016-11-11 03:28:31 2144 [note] innodb: setting log file ./ib_logfile1 size to 48 mb
2016-11-11 03:28:37 2144 [note] innodb: renaming log file ./ib_logfile101 to ./ib_logfile0
2016-11-11 03:28:37 2144 [warning] innodb: new log files created, lsn=45781
2016-11-11 03:28:37 2144 [note] innodb: doublewrite buffer not found: creating new
2016-11-11 03:28:37 2144 [note] innodb: doublewrite buffer created
2016-11-11 03:28:37 2144 [note] innodb: 128 rollback segment(s) are active.
2016-11-11 03:28:37 2144 [warning] innodb: creating foreign key constraint system tables.
2016-11-11 03:28:37 2144 [note] innodb: foreign key constraint system tables created
2016-11-11 03:28:37 2144 [note] innodb: creating tablespace and datafile system tables.
2016-11-11 03:28:38 2144 [note] innodb: tablespace and datafile system tables created.
2016-11-11 03:28:38 2144 [note] innodb: waiting for purge to start
2016-11-11 03:28:38 2144 [note] innodb: 5.6.20 started; log sequence number 0
2016-11-11 03:28:38 2144 [warning] no existing uuid has been found, so we assume that this is the first time that this server has been started. generating a new uuid: ef3b0cd5-a7be-11e6-98b3-000d3a8062fe.
2016-11-11 03:28:38 2144 [note] rsa private key file not found: /var/lib/mysql//private_key.pem. some authentication plugins will not work.
2016-11-11 03:28:38 2144 [note] rsa public key file not found: /var/lib/mysql//public_key.pem. some authentication plugins will not work.
2016-11-11 03:28:38 2144 [note] server hostname (bind-address): * port: 3306
2016-11-11 03:28:38 2144 [note] ipv6 is available.
2016-11-11 03:28:38 2144 [note] - :: resolves to ::
2016-11-11 03:28:38 2144 [note] server socket created on ip: :: .
2016-11-11 03:28:38 2144 [error] fatal error: can t open and lock privilege tables: table mysql.user doesn t exist
161111 03:28:38 mysqld_safe mysqld from pid file /var/lib/mysql/azrlnx06.pid ended
clip_image002搜索了一些相關(guān)資料，應(yīng)該是 perl-data-dumper 模組沒(méi)有安裝，導(dǎo)致安裝過(guò)程中，初始化數(shù)據(jù)庫(kù)失敗，所以啟動(dòng) mysql 服務(wù)時(shí)，找不到相關(guān)系統(tǒng)表。具體參考官方文檔 mysql-server rpm does not install perl-data-dumper as a dependency
description:
mysql-server requires perl-data-dumper to function. however, perl-data-dumper is not listed by the mysql-server rpm as a dependency. so if a linux server does not have perl-data-dumper installed, the install-mysql-db will fail. and because of missing the initial database, the mysql service could not be started.
how to repeat:
on a linux server, make sure there is no perl-data-dumper installed. install mysql-server using yum. there should be error message complaining database could not be created.
suggested fix:
add perl-data-dumper as a dependency of the rpm package
解決方法：
1：安裝 perl-data-dumper 模組。
[root@azrlnx06 mysql]# yum install -y perl-data-dumper2：初始化數(shù)據(jù)庫(kù)
[root@azrlnx06 mysql]# sudo mysql_install_db --user=mysql --basedir=/usr/ --ldata=/var/lib/mysql/
clip_image003[root@azrlnx06 mysql]# service mysql start
starting mysql. success!
[root@azrlnx06 mysql]# /usr//bin/mysqladmin -u root password qwe!23
warning: using a password on the command line interface can be insecure.當(dāng)然也可以卸載 mysql，然后重新安裝，就能看到安裝過(guò)程輸出的 detail 信息輸出了。
到此，關(guān)于“CentOS7 安裝 MySQL5.6 遇到的問(wèn)題怎么解決”的學(xué)習(xí)就結(jié)束了，希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí)，快去試試吧！若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí)，請(qǐng)繼續(xù)關(guān)注丸趣 TV 網(wǎng)站，丸趣 TV 小編會(huì)繼續(xù)努力為大家?guī)?lái)更多實(shí)用的文章！
向 AI 問(wèn)一下細(xì)節(jié)
丸趣 TV 網(wǎng) – 提供最優(yōu)質(zhì)的資源集合！
