1）下载rpm
离线下载地址：https://downloads.mysql.com/archives/community/
[root@localhost ~]# wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm [root@localhost ~]# ll -rw-r--r--. 1 root root 9116 Apr 11 2016 mysql57-community-release-el7-8.noarch.rpm
2）安装rpm
[root@localhost ~]# yum localinstall mysql57-community-release-el7-8.noarch.rpm Loaded plugins: fastestmirror Examining mysql57-community-release-el7-8.noarch.rpm: mysql57-community-release-el7-8.noarch Marking mysql57-community-release-el7-8.noarch.rpm to be installed Resolving Dependencies --> Running transaction check ---> Package mysql57-community-release.noarch 0:el7-8 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================================================= Installing: mysql57-community-release noarch el7-8 /mysql57-community-release-el7-8.noarch 8.2 k Transaction Summary ======================================================================================================================================================================= Install 1 Package Total size: 8.2 k Installed size: 8.2 k Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : mysql57-community-release-el7-8.noarch 1/1 Verifying : mysql57-community-release-el7-8.noarch 1/1 Installed: mysql57-community-release.noarch 0:el7-8 Complete!
验证是否安装成功：
[root@localhost ~]# yum repolist enabled | grep "mysql.*-community.*" mysql-connectors-community/x86_64 MySQL Connectors Community 51 mysql-tools-community/x86_64 MySQL Tools Community 63 mysql57-community/x86_64 MySQL 5.7 Community Server 267
3）安装mysql-community-server
[root@localhost ~]# yum install mysql-community-server Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package mysql-community-server.x86_64 0:5.7.22-1.el7 will be installed --> Processing Dependency: mysql-community-common(x86-64) = 5.7.22-1.el7 for package: mysql-community-server-5.7.22-1.el7.x86_64 --> Processing Dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysql-community-server-5.7.22-1.el7.x86_64 --> Processing Dependency: perl(strict) for package: mysql-community-server-5.7.22-1.el7.x86_64 --> Processing Dependency: perl(Getopt::Long) for package: mysql-community-server-5.7.22-1.el7.x86_64 --> Processing Dependency: /usr/bin/perl for package: mysql-community-server-5.7.22-1.el7.x86_64 --> Running transaction check ---> Package mysql-community-client.x86_64 0:5.7.22-1.el7 will be installed --> Processing Dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysql-community-client-5.7.22-1.el7.x86_64 ---> Package mysql-community-common.x86_64 0:5.7.22-1.el7 will be installed ---> Package perl.x86_64 4:5.16.3-292.el7 will be installed --> Processing Dependency: perl-libs = 4:5.16.3-292.el7 for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Socket) >= 1.3 for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Scalar::Util) >= 1.10 for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl-macros for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl-libs for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(threads::shared) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(threads) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(constant) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Time::Local) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Time::HiRes) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Storable) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Socket) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Scalar::Util) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Pod::Simple::XHTML) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Pod::Simple::Search) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Filter::Util::Call) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(File::Temp) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(File::Spec::Unix) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(File::Spec::Functions) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(File::Spec) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(File::Path) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Exporter) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Cwd) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: perl(Carp) for package: 4:perl-5.16.3-292.el7.x86_64 --> Processing Dependency: libperl.so()(64bit) for package: 4:perl-5.16.3-292.el7.x86_64 ---> Package perl-Getopt-Long.noarch 0:2.40-3.el7 will be installed --> Processing Dependency: perl(Pod::Usage) >= 1.14 for package: perl-Getopt-Long-2.40-3.el7.noarch --> Processing Dependency: perl(Text::ParseWords) for package: perl-Getopt-Long-2.40-3.el7.noarch --> Running transaction check ---> Package mariadb-libs.x86_64 1:5.5.56-2.el7 will be obsoleted --> Processing Dependency: libmysqlclient.so.18()(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64 --> Processing Dependency: libmysqlclient.so.18(libmysqlclient_18)(64bit) for package: 2:postfix-2.10.1-6.el7.x86_64 ---> Package mysql-community-libs.x86_64 0:5.7.22-1.el7 will be obsoleting ---> Package perl-Carp.noarch 0:1.26-244.el7 will be installed ---> Package perl-Exporter.noarch 0:5.68-3.el7 will be installed ---> Package perl-File-Path.noarch 0:2.09-2.el7 will be installed ---> Package perl-File-Temp.noarch 0:0.23.01-3.el7 will be installed ---> Package perl-Filter.x86_64 0:1.49-3.el7 will be installed ---> Package perl-PathTools.x86_64 0:3.40-5.el7 will be installed ---> Package perl-Pod-Simple.noarch 1:3.28-4.el7 will be installed --> Processing Dependency: perl(Pod::Escapes) >= 1.04 for package: 1:perl-Pod-Simple-3.28-4.el7.noarch --> Processing Dependency: perl(Encode) for package: 1:perl-Pod-Simple-3.28-4.el7.noarch ---> Package perl-Pod-Usage.noarch 0:1.63-3.el7 will be installed --> Processing Dependency: perl(Pod::Text) >= 3.15 for package: perl-Pod-Usage-1.63-3.el7.noarch --> Processing Dependency: perl-Pod-Perldoc for package: perl-Pod-Usage-1.63-3.el7.noarch ---> Package perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 will be installed ---> Package perl-Socket.x86_64 0:2.010-4.el7 will be installed ---> Package perl-Storable.x86_64 0:2.45-3.el7 will be installed ---> Package perl-Text-ParseWords.noarch 0:3.29-4.el7 will be installed ---> Package perl-Time-HiRes.x86_64 4:1.9725-3.el7 will be installed ---> Package perl-Time-Local.noarch 0:1.2300-2.el7 will be installed ---> Package perl-constant.noarch 0:1.27-2.el7 will be installed ---> Package perl-libs.x86_64 4:5.16.3-292.el7 will be installed ---> Package perl-macros.x86_64 4:5.16.3-292.el7 will be installed ---> Package perl-threads.x86_64 0:1.87-4.el7 will be installed ---> Package perl-threads-shared.x86_64 0:1.43-6.el7 will be installed --> Running transaction check ---> Package mysql-community-libs-compat.x86_64 0:5.7.22-1.el7 will be obsoleting ---> Package perl-Encode.x86_64 0:2.51-7.el7 will be installed ---> Package perl-Pod-Escapes.noarch 1:1.04-292.el7 will be installed ---> Package perl-Pod-Perldoc.noarch 0:3.20-4.el7 will be installed --> Processing Dependency: perl(parent) for package: perl-Pod-Perldoc-3.20-4.el7.noarch --> Processing Dependency: perl(HTTP::Tiny) for package: perl-Pod-Perldoc-3.20-4.el7.noarch ---> Package perl-podlators.noarch 0:2.5.1-3.el7 will be installed --> Running transaction check ---> Package perl-HTTP-Tiny.noarch 0:0.033-3.el7 will be installed ---> Package perl-parent.noarch 1:0.225-244.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================================================= Installing: mysql-community-libs x86_64 5.7.22-1.el7 mysql57-community 2.1 M replacing mariadb-libs.x86_64 1:5.5.56-2.el7 mysql-community-libs-compat x86_64 5.7.22-1.el7 mysql57-community 2.0 M replacing mariadb-libs.x86_64 1:5.5.56-2.el7 mysql-community-server x86_64 5.7.22-1.el7 mysql57-community 165 M Installing for dependencies: mysql-community-client x86_64 5.7.22-1.el7 mysql57-community 24 M mysql-community-common x86_64 5.7.22-1.el7 mysql57-community 274 k perl x86_64 4:5.16.3-292.el7 base 8.0 M perl-Carp noarch 1.26-244.el7 base 19 k perl-Encode x86_64 2.51-7.el7 base 1.5 M perl-Exporter noarch 5.68-3.el7 base 28 k perl-File-Path noarch 2.09-2.el7 base 26 k perl-File-Temp noarch 0.23.01-3.el7 base 56 k perl-Filter x86_64 1.49-3.el7 base 76 k perl-Getopt-Long noarch 2.40-3.el7 base 56 k perl-HTTP-Tiny noarch 0.033-3.el7 base 38 k perl-PathTools x86_64 3.40-5.el7 base 82 k perl-Pod-Escapes noarch 1:1.04-292.el7 base 51 k perl-Pod-Perldoc noarch 3.20-4.el7 base 87 k perl-Pod-Simple noarch 1:3.28-4.el7 base 216 k perl-Pod-Usage noarch 1.63-3.el7 base 27 k perl-Scalar-List-Utils x86_64 1.27-248.el7 base 36 k perl-Socket x86_64 2.010-4.el7 base 49 k perl-Storable x86_64 2.45-3.el7 base 77 k perl-Text-ParseWords noarch 3.29-4.el7 base 14 k perl-Time-HiRes x86_64 4:1.9725-3.el7 base 45 k perl-Time-Local noarch 1.2300-2.el7 base 24 k perl-constant noarch 1.27-2.el7 base 19 k perl-libs x86_64 4:5.16.3-292.el7 base 688 k perl-macros x86_64 4:5.16.3-292.el7 base 43 k perl-parent noarch 1:0.225-244.el7 base 12 k perl-podlators noarch 2.5.1-3.el7 base 112 k perl-threads x86_64 1.87-4.el7 base 49 k perl-threads-shared x86_64 1.43-6.el7 base 39 k Transaction Summary ======================================================================================================================================================================= Install 3 Packages (+29 Dependent packages) Total download size: 205 M Is this ok [y/d/N]: y Downloading packages: warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.22-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY19 ETA Public key for mysql-community-common-5.7.22-1.el7.x86_64.rpm is not installed (1/32): mysql-community-common-5.7.22-1.el7.x86_64.rpm | 274 kB 00:00:01 (2/32): mysql-community-libs-5.7.22-1.el7.x86_64.rpm | 2.1 MB 00:00:07 (3/32): mysql-community-libs-compat-5.7.22-1.el7.x86_64.rpm | 2.0 MB 00:00:07 (4/32): perl-Carp-1.26-244.el7.noarch.rpm | 19 kB 00:00:00 (5/32): perl-5.16.3-292.el7.x86_64.rpm | 8.0 MB 00:00:01 (6/32): perl-Exporter-5.68-3.el7.noarch.rpm | 28 kB 00:00:00 (7/32): perl-File-Path-2.09-2.el7.noarch.rpm | 26 kB 00:00:00 (8/32): perl-File-Temp-0.23.01-3.el7.noarch.rpm | 56 kB 00:00:00 (9/32): perl-Encode-2.51-7.el7.x86_64.rpm | 1.5 MB 00:00:01 (10/32): perl-Filter-1.49-3.el7.x86_64.rpm | 76 kB 00:00:00 (11/32): perl-HTTP-Tiny-0.033-3.el7.noarch.rpm | 38 kB 00:00:00 (12/32): perl-Getopt-Long-2.40-3.el7.noarch.rpm | 56 kB 00:00:00 (13/32): perl-PathTools-3.40-5.el7.x86_64.rpm | 82 kB 00:00:00 (14/32): perl-Pod-Escapes-1.04-292.el7.noarch.rpm | 51 kB 00:00:00 (15/32): perl-Pod-Perldoc-3.20-4.el7.noarch.rpm | 87 kB 00:00:00 (16/32): perl-Pod-Simple-3.28-4.el7.noarch.rpm | 216 kB 00:00:00 (17/32): perl-Pod-Usage-1.63-3.el7.noarch.rpm | 27 kB 00:00:00 (18/32): perl-Scalar-List-Utils-1.27-248.el7.x86_64.rpm | 36 kB 00:00:00 (19/32): perl-Socket-2.010-4.el7.x86_64.rpm | 49 kB 00:00:00 (20/32): perl-Text-ParseWords-3.29-4.el7.noarch.rpm | 14 kB 00:00:00 (21/32): perl-Storable-2.45-3.el7.x86_64.rpm | 77 kB 00:00:00 (22/32): perl-Time-HiRes-1.9725-3.el7.x86_64.rpm | 45 kB 00:00:00 (23/32): perl-Time-Local-1.2300-2.el7.noarch.rpm | 24 kB 00:00:00 (24/32): perl-constant-1.27-2.el7.noarch.rpm | 19 kB 00:00:00 (25/32): perl-macros-5.16.3-292.el7.x86_64.rpm | 43 kB 00:00:00 (26/32): perl-parent-0.225-244.el7.noarch.rpm | 12 kB 00:00:00 (27/32): perl-libs-5.16.3-292.el7.x86_64.rpm | 688 kB 00:00:00 (28/32): perl-podlators-2.5.1-3.el7.noarch.rpm | 112 kB 00:00:00 (29/32): perl-threads-1.87-4.el7.x86_64.rpm | 49 kB 00:00:00 (30/32): perl-threads-shared-1.43-6.el7.x86_64.rpm | 39 kB 00:00:00 mysql-community-client-5.7.22- FAILED ===============- ] 277 kB/s | 71 MB 00:08:13 ETA http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql-community-client-5.7.22-1.el7.x86_64.rpm: [Errno 12] Timeout on http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql-community-client-5.7.22-1.el7.x86_64.rpm: (28, 'Operation too slow. Less than 1000 bytes/sec transferred the last 30 seconds') Trying other mirror. (31/32): mysql-community-server-5.7.22-1.el7.x86_64.rpm | 165 MB 00:10:17 (32/32): mysql-community-client-5.7.22-1.el7.x86_64.rpm | 24 MB 00:00:41 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 310 kB/s | 205 MB 00:11:16 Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql Importing GPG key 0x5072E1F5: Userid : "MySQL Release Engineering <mysql-build@oss.oracle.com>" Fingerprint: a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5 Package : mysql57-community-release-el7-8.noarch (installed) From : /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql Is this ok [y/N]: y Is this ok [y/N]: y Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : mysql-community-common-5.7.22-1.el7.x86_64 1/33 Installing : mysql-community-libs-5.7.22-1.el7.x86_64 2/33 Installing : mysql-community-client-5.7.22-1.el7.x86_64 3/33 Installing : 1:perl-parent-0.225-244.el7.noarch 4/33 Installing : perl-HTTP-Tiny-0.033-3.el7.noarch 5/33 Installing : perl-podlators-2.5.1-3.el7.noarch 6/33 Installing : perl-Pod-Perldoc-3.20-4.el7.noarch 7/33 Installing : 1:perl-Pod-Escapes-1.04-292.el7.noarch 8/33 Installing : perl-Text-ParseWords-3.29-4.el7.noarch 9/33 Installing : perl-Encode-2.51-7.el7.x86_64 10/33 Installing : perl-Pod-Usage-1.63-3.el7.noarch 11/33 Installing : 4:perl-macros-5.16.3-292.el7.x86_64 12/33 Installing : 4:perl-libs-5.16.3-292.el7.x86_64 13/33 Installing : perl-Storable-2.45-3.el7.x86_64 14/33 Installing : perl-Exporter-5.68-3.el7.noarch 15/33 Installing : perl-constant-1.27-2.el7.noarch 16/33 Installing : perl-Time-Local-1.2300-2.el7.noarch 17/33 Installing : perl-Socket-2.010-4.el7.x86_64 18/33 Installing : perl-Carp-1.26-244.el7.noarch 19/33 Installing : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 20/33 Installing : perl-PathTools-3.40-5.el7.x86_64 21/33 Installing : perl-Scalar-List-Utils-1.27-248.el7.x86_64 22/33 Installing : perl-File-Temp-0.23.01-3.el7.noarch 23/33 Installing : perl-File-Path-2.09-2.el7.noarch 24/33 Installing : perl-threads-shared-1.43-6.el7.x86_64 25/33 Installing : perl-threads-1.87-4.el7.x86_64 26/33 Installing : perl-Filter-1.49-3.el7.x86_64 27/33 Installing : 1:perl-Pod-Simple-3.28-4.el7.noarch 28/33 Installing : perl-Getopt-Long-2.40-3.el7.noarch 29/33 Installing : 4:perl-5.16.3-292.el7.x86_64 30/33 Installing : mysql-community-server-5.7.22-1.el7.x86_64 31/33 Installing : mysql-community-libs-compat-5.7.22-1.el7.x86_64 32/33 Erasing : 1:mariadb-libs-5.5.56-2.el7.x86_64 33/33 Verifying : mysql-community-libs-compat-5.7.22-1.el7.x86_64 1/33 Verifying : perl-HTTP-Tiny-0.033-3.el7.noarch 2/33 Verifying : perl-threads-shared-1.43-6.el7.x86_64 3/33 Verifying : perl-Storable-2.45-3.el7.x86_64 4/33 Verifying : perl-Exporter-5.68-3.el7.noarch 5/33 Verifying : perl-constant-1.27-2.el7.noarch 6/33 Verifying : perl-PathTools-3.40-5.el7.x86_64 7/33 Verifying : 4:perl-macros-5.16.3-292.el7.x86_64 8/33 Verifying : 1:perl-parent-0.225-244.el7.noarch 9/33 Verifying : 4:perl-5.16.3-292.el7.x86_64 10/33 Verifying : mysql-community-server-5.7.22-1.el7.x86_64 11/33 Verifying : perl-File-Temp-0.23.01-3.el7.noarch 12/33 Verifying : 1:perl-Pod-Simple-3.28-4.el7.noarch 13/33 Verifying : perl-Time-Local-1.2300-2.el7.noarch 14/33 Verifying : 4:perl-libs-5.16.3-292.el7.x86_64 15/33 Verifying : perl-Socket-2.010-4.el7.x86_64 16/33 Verifying : mysql-community-common-5.7.22-1.el7.x86_64 17/33 Verifying : perl-Carp-1.26-244.el7.noarch 18/33 Verifying : 4:perl-Time-HiRes-1.9725-3.el7.x86_64 19/33 Verifying : perl-Scalar-List-Utils-1.27-248.el7.x86_64 20/33 Verifying : 1:perl-Pod-Escapes-1.04-292.el7.noarch 21/33 Verifying : mysql-community-libs-5.7.22-1.el7.x86_64 22/33 Verifying : perl-Pod-Usage-1.63-3.el7.noarch 23/33 Verifying : perl-Encode-2.51-7.el7.x86_64 24/33 Verifying : perl-Pod-Perldoc-3.20-4.el7.noarch 25/33 Verifying : perl-podlators-2.5.1-3.el7.noarch 26/33 Verifying : perl-File-Path-2.09-2.el7.noarch 27/33 Verifying : perl-threads-1.87-4.el7.x86_64 28/33 Verifying : perl-Filter-1.49-3.el7.x86_64 29/33 Verifying : perl-Getopt-Long-2.40-3.el7.noarch 30/33 Verifying : perl-Text-ParseWords-3.29-4.el7.noarch 31/33 Verifying : mysql-community-client-5.7.22-1.el7.x86_64 32/33 Verifying : 1:mariadb-libs-5.5.56-2.el7.x86_64 33/33 Installed: mysql-community-libs.x86_64 0:5.7.22-1.el7 mysql-community-libs-compat.x86_64 0:5.7.22-1.el7 mysql-community-server.x86_64 0:5.7.22-1.el7 Dependency Installed: mysql-community-client.x86_64 0:5.7.22-1.el7 mysql-community-common.x86_64 0:5.7.22-1.el7 perl.x86_64 4:5.16.3-292.el7 perl-Carp.noarch 0:1.26-244.el7 perl-Encode.x86_64 0:2.51-7.el7 perl-Exporter.noarch 0:5.68-3.el7 perl-File-Path.noarch 0:2.09-2.el7 perl-File-Temp.noarch 0:0.23.01-3.el7 perl-Filter.x86_64 0:1.49-3.el7 perl-Getopt-Long.noarch 0:2.40-3.el7 perl-HTTP-Tiny.noarch 0:0.033-3.el7 perl-PathTools.x86_64 0:3.40-5.el7 perl-Pod-Escapes.noarch 1:1.04-292.el7 perl-Pod-Perldoc.noarch 0:3.20-4.el7 perl-Pod-Simple.noarch 1:3.28-4.el7 perl-Pod-Usage.noarch 0:1.63-3.el7 perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 perl-Socket.x86_64 0:2.010-4.el7 perl-Storable.x86_64 0:2.45-3.el7 perl-Text-ParseWords.noarch 0:3.29-4.el7 perl-Time-HiRes.x86_64 4:1.9725-3.el7 perl-Time-Local.noarch 0:1.2300-2.el7 perl-constant.noarch 0:1.27-2.el7 perl-libs.x86_64 4:5.16.3-292.el7 perl-macros.x86_64 4:5.16.3-292.el7 perl-parent.noarch 1:0.225-244.el7 perl-podlators.noarch 0:2.5.1-3.el7 perl-threads.x86_64 0:1.87-4.el7 perl-threads-shared.x86_64 0:1.43-6.el7 Replaced: mariadb-libs.x86_64 1:5.5.56-2.el7 Complete!
4）启动mysql服务
[root@localhost log]# sudo service mysqld start Redirecting to /bin/systemctl start mysqld.service 或者 [root@localhost log]# sudo systemctl start mysqld.service
5）获取mysql当前密码：
[root@localhost log]# sudo grep 'temporary password' /var/log/mysqld.log 2018-05-11T08:34:34.272202Z 1 [Note] A temporary password is generated for root@localhost: dcUsA8:atfV9
6）修改mysql密码：
[root@localhost log]# mysql -uroot -pdcUsA8:atfV9 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 2 Server version: 5.7.22 Copyright (c) 2000, 2018, 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> set global validate_password_length=0; Query OK, 0 rows affected (0.00 sec) mysql> set global validate_password_policy=0; Query OK, 0 rows affected (0.00 sec) mysql> set password for 'root'@'localhost' = password('123456'); Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye [root@localhost log]# /sbin/iptables -I INPUT -p tcp --dport 3306 -j ACCEPT service network restart[root@localhost log]# service network restart Restarting network (via systemctl): [ OK ] [root@localhost ~]# mysql -uroot -p123456 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 3 Server version: 5.7.22 MySQL Community Server (GPL) Copyright (c) 2000, 2018, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.01 sec)
基础才是编程人员应该深入研究的问题，比如:
1）List/Set/Map内部组成原理|区别
2）mysql索引存储结构&如何调优/b-tree特点、计算复杂度及影响复杂度的因素。。。
3）JVM运行组成与原理及调优
4）Java类加载器运行原理
5）Java中GC过程原理|使用的回收算法原理
6）Redis中hash一致性实现及与hash其他区别
7）Java多线程、线程池开发、管理Lock与Synchroined区别
8）Spring IOC/AOP 原理；加载过程的。。。
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