centos7.5安装公版mysql5.7.25

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卸载原来系统安装的包

# yum remove -y java cvs libselinux-devel postgresql mysql ecj jna sinjdoc

依赖包安装

# yum install -y numactl git lrzsz screen make cmake gcc gcc-c++ libaio libaio-devel automake autoconf bzr bison libtool ncurses-devel ncurses vim numactl-devel sendmail perl-CPAN perl-Time-HiRes perl-LWP-Authen-Negotiate patch cpan perl-DBD-MySQL perl-YAML perl-File-Which perl-DBI perl-Digest-SHA1 perl-Time-HiRes perl-LWP-Authen-Negotiate bind-utils zlib-devel perl-Config-Tiny perl-Log-Dispatch perl-Parallel-ForkManager perl-JSON.noarch openssh-server openssh rsyslog perl openssl openssl-devel libgcrypt-devel

# make cmake automake autoconf  gcc gcc-c++ vim git lrzsz sendmail ntp bzr bzip flex bison patch cpan rsyslog numactl screen bind-utils coreutils glib2 mpstat dstat sysstat e4fsprogs xfsprogs

# libaio libaio-devel

# libgcrypt-devel

# libxml2-devel

# libxslt-devel

# ncurses ncurses-devel

# openssh openssh-server openssl openssl-devel

# zlib-devel

# numactl-devel

# perl perl-devel perl* perl-ExtUtils*

# openldap-devel

# python-devel

# tcl-devel

# curl-devel

# expat-devel

# gettext-devel

############初始化

./bin/mysqld --defaults-file=/home/cdrom/work/mysql_3307/etc/my.cnf --initialize-insecure --user=work --basedir=/home/cdrom/work/mysql_3307

# 执行过程详细情况如下：

[work@a8-dba-cloud-db00.wh log]$ tail -f mysql.err
--22T22::35.617244+:  [Note] InnoDB: Setting file './ibdata1' size to  MB. Physically writing the file full; Please wait ...
--22T22::35.617619+:  [Note] InnoDB: Progress in MB:

--22T22::36.505698+:  [Note] InnoDB: File './ibdata1' size is now  MB.
--22T22::36.506527+:  [Note] InnoDB: Setting log file ./ib_logfile101 size to  MB
--22T22::36.506768+:  [Note] InnoDB: Progress in MB:

--22T22::20.789304+:  [Note] InnoDB: Setting log file ./ib_logfile1 size to  MB
--22T22::20.789537+:  [Note] InnoDB: Progress in MB:

--22T22::08.483251+:  [Note] InnoDB: Setting log file ./ib_logfile2 size to  MB
--22T22::08.483529+:  [Note] InnoDB: Progress in MB:

--22T22::55.159211+:  [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
--22T22::55.160086+:  [Warning] InnoDB: New log files created, LSN=
--22T22::55.160129+:  [Note] InnoDB: Creating shared tablespace for temporary tables
--22T22::55.160256+:  [Note] InnoDB: Setting file './ibtmp1' size to  MB. Physically writing the file full; Please wait ...
--22T22::55.196141+:  [Note] InnoDB: File './ibtmp1' size is now  MB.
--22T22::55.196576+:  [Note] InnoDB: Doublewrite buffer not found: creating new
--22T22::55.213558+:  [Note] InnoDB: Doublewrite buffer created
--22T22::55.226037+:  [Note] InnoDB:  redo rollback segment(s) found.  redo rollback segment(s) are active.
--22T22::55.226103+:  [Note] InnoDB:  non-redo rollback segment(s) are active.
--22T22::55.227122+:  [Warning] InnoDB: Creating foreign key constraint system tables.
--22T22::55.236668+:  [Note] InnoDB: Foreign key constraint system tables created
--22T22::55.236822+:  [Note] InnoDB: Creating tablespace and datafile system tables.
--22T22::55.238879+:  [Note] InnoDB: Tablespace and datafile system tables created.
--22T22::55.238968+:  [Note] InnoDB: Creating sys_virtual system tables.
--22T22::55.240446+:  [Note] InnoDB: sys_virtual table created
--22T22::55.240917+:  [Note] InnoDB: Waiting for purge to start
--22T22::55.291193+:  [Note] InnoDB: 5.7. started; log sequence number
--22T22::55.291233+:  [Note] InnoDB: page_cleaner: 1000ms intended loop took 139687ms. The settings might not be optimal. (flushed= and evicted=, during the time.)
--22T22::55.295328+:  [Note] Plugin 'FEDERATED' is disabled.
--22T22::55.313526+:  [Note] Salting uuid generator variables, current_pid: , server_start_time: , bytes_sent: ,
--22T22::55.315222+:  [Note] Generated uuid: 'c42216ad-0d37-11ea-b163-2016d8c96b46', server_start_time: , bytes_sent:
--22T22::55.315283+:  [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: c42216ad-0d37-11ea-b163-2016d8c96b46.
--22T22::55.318419+:  [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
--22T22::55.323174+:  [Note] Creating the system database
--22T22::55.323226+:  [Warning] root@localhost is created with an empty password ! Please consider switching off the --initialize-insecure option.
--22T22::55.327464+:  [Note] Creating the system tables
--22T22::55.730845+:  [Note] Filling in the system tables, part
--22T22::55.732873+:  [Note] Filling in the system tables, part
--22T22::55.732901+:  [Note] Filling in the mysql.help table
--22T22::56.027656+:  [Note] Creating user for internal session service
--22T22::56.028500+:  [Note] Creating the sys schema
--22T22::56.292510+:  [Note] Bootstrapping complete
--22T22::56.293035+:  [Note] Giving  client threads a chance to die gracefully
--22T22::56.293068+:  [Note] Shutting down slave threads
--22T22::56.293081+:  [Note] Forcefully disconnecting  remaining clients
--22T22::56.296720+:  [Note] Binlog end
--22T22::56.298692+:  [Note] InnoDB: FTS optimize thread exiting.
--22T22::56.298906+:  [Note] InnoDB: Starting shutdown...
--22T22::56.399347+:  [Note] InnoDB: Dumping buffer pool(s) to /home/cdrom/work/mysql_3307/data/ib_buffer_pool
--22T22::56.400218+:  [Note] InnoDB: Buffer pool(s) dump completed at  ::
--22T22::58.298176+:  [Note] InnoDB: Shutdown completed; log sequence number
--22T22::58.298282+:  [Note] InnoDB: Removed temporary tablespace data file: "ibtmp1"

修改配置文件并启动，使其免密码登陆

#################启动并登陆修改密码

/home/cdrom/work/mysql_3307/bin/mysqld_safe --defaults-file=/home/cdrom/work/mysql_3307/etc/my.cnf --datadir=/home/cdrom/work/mysql_3307/data --pid-file=/home/cdrom/work/mysql_3307/tmp/mysql.pid

第一次启动详细过程如下：

--22T15::.822348Z mysqld_safe Logging to '/home/cdrom/work/mysql_3307/log/mysql.err'.
--22T15::.852036Z mysqld_safe Starting mysqld daemon with databases from /home/cdrom/work/mysql_3308/data
--22T15::.867928Z  [Warning] Could not increase number of max_open_files to more than  (request: )
--22T15::.868027Z  [Warning] Changed limits: max_connections:  (requested )
--22T15::.868031Z  [Warning] Changed limits: table_open_cache:  (requested )
--22T23::30.037210+:  [Warning] option 'general_log': boolean value '/home/cdrom/work/mysql_3307/log/mysql.log' wasn't recognized. Set to OFF.
--22T23::30.037231+:  [Warning] option 'general_log': boolean value '/home/cdrom/work/mysql_3307/log/mysql.log' wasn't recognized. Set to OFF.
--22T23::30.037238+:  [Warning] The syntax '--log_warnings/-W' is deprecated and will be removed in a future release. Please use '--log_error_verbosity' instead.
--22T23::30.037391+:  [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
--22T23::30.037428+:  [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled
--22T23::30.037463+:  [Note] /home/cdrom/work/mysql_3307/bin/mysqld (mysqld 5.7.-log) starting as process  ...
--22T23::30.047711+:  [Warning] option 'innodb-buffer-pool-chunk-size': unsigned value  adjusted to
--22T23::30.048165+:  [Warning] InnoDB: innodb_open_files should not be greater than the open_files_limit.

--22T23::30.048250+:  [Note] InnoDB: PUNCH HOLE support available
--22T23::30.048270+:  [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
--22T23::30.048286+:  [Note] InnoDB: Uses event mutexes
--22T23::30.048302+:  [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier
--22T23::30.048313+:  [Note] InnoDB: Compressed tables use zlib 1.2.
--22T23::30.048325+:  [Note] InnoDB: Using Linux native AIO
--22T23::30.048621+:  [Note] InnoDB: Number of pools:
--22T23::30.048770+:  [Note] InnoDB: Using CPU crc32 instructions
--22T23::30.050544+:  [Note] InnoDB: Initializing buffer pool, total size = 2G, instances = , chunk size = 1M
--22T23::30.188178+:  [Note] InnoDB: Completed initialization of buffer pool
--22T23::30.209757+:  [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority().
--22T23::30.227598+:  [Note] InnoDB: Highest supported file format is Barracuda.
--22T23::30.327026+:  [Note] InnoDB: Creating shared tablespace for temporary tables
--22T23::30.327140+:  [Note] InnoDB: Setting file './ibtmp1' size to  MB. Physically writing the file full; Please wait ...
--22T23::30.356049+:  [Note] InnoDB: File './ibtmp1' size is now  MB.
--22T23::30.357702+:  [Note] InnoDB:  redo rollback segment(s) found.  redo rollback segment(s) are active.
--22T23::30.357759+:  [Note] InnoDB:  non-redo rollback segment(s) are active.
--22T23::30.358223+:  [Note] InnoDB: Waiting for purge to start
--22T23::30.408862+:  [Note] InnoDB: 5.7. started; log sequence number
--22T23::30.415111+:  [Note] InnoDB: Loading buffer pool(s) from /home/cdrom/work/mysql_3307/data/ib_buffer_pool
--22T23::30.415595+:  [Note] Plugin 'FEDERATED' is disabled.
--22T23::30.448392+:  [Warning] Failed to set up SSL because of the following SSL library error: SSL context is not usable without certificate and private key
--22T23::30.448460+:  [Note] Server hostname (bind-address): '*'; port:
--22T23::30.448566+:  [Note] IPv6 is available.
--22T23::30.448620+:  [Note]   - '::' resolves to '::';
--22T23::30.448730+:  [Note] Server socket created on IP: '::'.
--22T23::30.450563+:  [Warning] Insecure configuration for --pid-file: Location '/home/cdrom/work' in the path is accessible to all OS users. Consider choosing a different directory.
--22T23::30.458231+:  [Note] InnoDB: Buffer pool(s) load completed at  ::
--22T23::30.459298+:  [Note] Failed to start slave threads for channel ''
--22T23::30.470390+:  [Note] /home/cdrom/work/mysql_3306/bin/mysqld: ready for connections.
Version: '5.7.27-log'  socket: '/home/cdrom/work/mysql_3307/tmp/mysql.sock'  port:   MySQL Community Server (GPL)

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# mysql -uroot

> use mysql;

> update user set authentication_string=password('root') where user='root';

#####################再次将配置文件中的免密码登陆去掉，重启服务即可