• Nginx反向代理功能-实现TCP负载均衡实战案例


                 Nginx反向代理功能-实现TCP负载均衡实战案例

                                              作者:尹正杰

    版权声明:原创作品,谢绝转载!否则将追究法律责任。

    一.安装MariaDB并授权

    1>.安装MariaDB数据库

    [root@node107.yizhengjie.org.cn ~]# yum -y install mariadb-server
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirror.bit.edu.cn
     * extras: mirrors.huaweicloud.com
     * updates: mirrors.huaweicloud.com
    base                                                                                                                                                 | 3.6 kB  00:00:00     
    extras                                                                                                                                               | 2.9 kB  00:00:00     
    updates                                                                                                                                              | 2.9 kB  00:00:00     
    Resolving Dependencies
    --> Running transaction check
    ---> Package mariadb-server.x86_64 1:5.5.64-1.el7 will be installed
    --> Processing Dependency: mariadb-libs(x86-64) = 1:5.5.64-1.el7 for package: 1:mariadb-server-5.5.64-1.el7.x86_64
    --> Processing Dependency: mariadb(x86-64) = 1:5.5.64-1.el7 for package: 1:mariadb-server-5.5.64-1.el7.x86_64
    --> Processing Dependency: perl-DBI for package: 1:mariadb-server-5.5.64-1.el7.x86_64
    --> Processing Dependency: perl-DBD-MySQL for package: 1:mariadb-server-5.5.64-1.el7.x86_64
    --> Processing Dependency: perl(DBI) for package: 1:mariadb-server-5.5.64-1.el7.x86_64
    --> Running transaction check
    ---> Package mariadb.x86_64 1:5.5.64-1.el7 will be installed
    ---> Package mariadb-libs.x86_64 1:5.5.60-1.el7_5 will be updated
    ---> Package mariadb-libs.x86_64 1:5.5.64-1.el7 will be an update
    ---> Package perl-DBD-MySQL.x86_64 0:4.023-6.el7 will be installed
    ---> Package perl-DBI.x86_64 0:1.627-4.el7 will be installed
    --> Processing Dependency: perl(RPC::PlServer) >= 0.2001 for package: perl-DBI-1.627-4.el7.x86_64
    --> Processing Dependency: perl(RPC::PlClient) >= 0.2000 for package: perl-DBI-1.627-4.el7.x86_64
    --> Running transaction check
    ---> Package perl-PlRPC.noarch 0:0.2020-14.el7 will be installed
    --> Processing Dependency: perl(Net::Daemon) >= 0.13 for package: perl-PlRPC-0.2020-14.el7.noarch
    --> Processing Dependency: perl(Net::Daemon::Test) for package: perl-PlRPC-0.2020-14.el7.noarch
    --> Processing Dependency: perl(Net::Daemon::Log) for package: perl-PlRPC-0.2020-14.el7.noarch
    --> Running transaction check
    ---> Package perl-Net-Daemon.noarch 0:0.48-5.el7 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    ============================================================================================================================================================================
     Package                                       Arch                                 Version                                        Repository                          Size
    ============================================================================================================================================================================
    Installing:
     mariadb-server                                x86_64                               1:5.5.64-1.el7                                 base                                11 M
    Installing for dependencies:
     mariadb                                       x86_64                               1:5.5.64-1.el7                                 base                               8.7 M
     perl-DBD-MySQL                                x86_64                               4.023-6.el7                                    base                               140 k
     perl-DBI                                      x86_64                               1.627-4.el7                                    base                               802 k
     perl-Net-Daemon                               noarch                               0.48-5.el7                                     base                                51 k
     perl-PlRPC                                    noarch                               0.2020-14.el7                                  base                                36 k
    Updating for dependencies:
     mariadb-libs                                  x86_64                               1:5.5.64-1.el7                                 base                               759 k
    
    Transaction Summary
    ============================================================================================================================================================================
    Install  1 Package  (+5 Dependent packages)
    Upgrade             ( 1 Dependent package)
    
    Total download size: 22 M
    Downloading packages:
    Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
    (1/7): perl-DBD-MySQL-4.023-6.el7.x86_64.rpm                                                                                                         | 140 kB  00:00:00     
    (2/7): perl-DBI-1.627-4.el7.x86_64.rpm                                                                                                               | 802 kB  00:00:00     
    (3/7): perl-Net-Daemon-0.48-5.el7.noarch.rpm                                                                                                         |  51 kB  00:00:00     
    (4/7): perl-PlRPC-0.2020-14.el7.noarch.rpm                                                                                                           |  36 kB  00:00:00     
    (5/7): mariadb-libs-5.5.64-1.el7.x86_64.rpm                                                                                                          | 759 kB  00:00:01     
    (6/7): mariadb-5.5.64-1.el7.x86_64.rpm                                                                                                               | 8.7 MB  00:00:01     
    (7/7): mariadb-server-5.5.64-1.el7.x86_64.rpm                                                                                                        |  11 MB  00:00:02     
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    Total                                                                                                                                       8.2 MB/s |  22 MB  00:00:02     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Updating   : 1:mariadb-libs-5.5.64-1.el7.x86_64                                                                                                                       1/8 
      Installing : 1:mariadb-5.5.64-1.el7.x86_64                                                                                                                            2/8 
      Installing : perl-Net-Daemon-0.48-5.el7.noarch                                                                                                                        3/8 
      Installing : perl-PlRPC-0.2020-14.el7.noarch                                                                                                                          4/8 
      Installing : perl-DBI-1.627-4.el7.x86_64                                                                                                                              5/8 
      Installing : perl-DBD-MySQL-4.023-6.el7.x86_64                                                                                                                        6/8 
      Installing : 1:mariadb-server-5.5.64-1.el7.x86_64                                                                                                                     7/8 
      Cleanup    : 1:mariadb-libs-5.5.60-1.el7_5.x86_64                                                                                                                     8/8 
      Verifying  : 1:mariadb-libs-5.5.64-1.el7.x86_64                                                                                                                       1/8 
      Verifying  : perl-Net-Daemon-0.48-5.el7.noarch                                                                                                                        2/8 
      Verifying  : 1:mariadb-5.5.64-1.el7.x86_64                                                                                                                            3/8 
      Verifying  : perl-DBD-MySQL-4.023-6.el7.x86_64                                                                                                                        4/8 
      Verifying  : 1:mariadb-server-5.5.64-1.el7.x86_64                                                                                                                     5/8 
      Verifying  : perl-DBI-1.627-4.el7.x86_64                                                                                                                              6/8 
      Verifying  : perl-PlRPC-0.2020-14.el7.noarch                                                                                                                          7/8 
      Verifying  : 1:mariadb-libs-5.5.60-1.el7_5.x86_64                                                                                                                     8/8 
    
    Installed:
      mariadb-server.x86_64 1:5.5.64-1.el7                                                                                                                                      
    
    Dependency Installed:
      mariadb.x86_64 1:5.5.64-1.el7  perl-DBD-MySQL.x86_64 0:4.023-6.el7  perl-DBI.x86_64 0:1.627-4.el7  perl-Net-Daemon.noarch 0:0.48-5.el7  perl-PlRPC.noarch 0:0.2020-14.el7 
    
    Dependency Updated:
      mariadb-libs.x86_64 1:5.5.64-1.el7                                                                                                                                        
    
    Complete!
    [root@node107.yizhengjie.org.cn ~]# 
    [root@node107.yizhengjie.org.cn ~]# yum -y install mariadb-server

    2>.启动数据库

    [root@node107.yizhengjie.org.cn ~]# ss -ntl
    State      Recv-Q Send-Q                                         Local Address:Port                                                        Peer Address:Port              
    LISTEN     0      128                                                        *:80                                                                     *:*                  
    LISTEN     0      128                                                        *:22                                                                     *:*                  
    LISTEN     0      128                                                       :::22                                                                    :::*                  
    [root@node107.yizhengjie.org.cn ~]# 
    [root@node107.yizhengjie.org.cn ~]# systemctl start mariadb
    [root@node107.yizhengjie.org.cn ~]# 
    [root@node107.yizhengjie.org.cn ~]# ss -ntl
    State      Recv-Q Send-Q                                         Local Address:Port                                                        Peer Address:Port              
    LISTEN     0      50                                                         *:3306                                                                   *:*                  
    LISTEN     0      128                                                        *:80                                                                     *:*                  
    LISTEN     0      128                                                        *:22                                                                     *:*                  
    LISTEN     0      128                                                       :::22                                                                    :::*                  
    [root@node107.yizhengjie.org.cn ~]# 

    3>.对数据库进行安全初始化操作

    [root@node107.yizhengjie.org.cn ~]# mysql_secure_installation 
    
    NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
          SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!
    
    In order to log into MariaDB to secure it, we'll need the current
    password for the root user.  If you've just installed MariaDB, and
    you haven't set the root password yet, the password will be blank,
    so you should just press enter here.
    
    Enter current password for root (enter for none): 
    OK, successfully used password, moving on...
    
    Setting the root password ensures that nobody can log into the MariaDB
    root user without the proper authorisation.
    
    Set root password? [Y/n] y
    New password: 
    Re-enter new password: 
    Password updated successfully!
    Reloading privilege tables..
     ... Success!
    
    
    By default, a MariaDB installation has an anonymous user, allowing anyone
    to log into MariaDB without having to have a user account created for
    them.  This is intended only for testing, and to make the installation
    go a bit smoother.  You should remove them before moving into a
    production environment.
    
    Remove anonymous users? [Y/n] y
     ... Success!
    
    Normally, root should only be allowed to connect from 'localhost'.  This
    ensures that someone cannot guess at the root password from the network.
    
    Disallow root login remotely? [Y/n] y
     ... Success!
    
    By default, MariaDB comes with a database named 'test' that anyone can
    access.  This is also intended only for testing, and should be removed
    before moving into a production environment.
    
    Remove test database and access to it? [Y/n] y
     - Dropping test database...
     ... Success!
     - Removing privileges on test database...
     ... Success!
    
    Reloading the privilege tables will ensure that all changes made so far
    will take effect immediately.
    
    Reload privilege tables now? [Y/n] y
     ... Success!
    
    Cleaning up...
    
    All done!  If you've completed all of the above steps, your MariaDB
    installation should now be secure.
    
    Thanks for using MariaDB!
    [root@node107.yizhengjie.org.cn ~]# 

    4>.授权Nginx服务器可以连接MySQL数据库

    [root@node107.yizhengjie.org.cn ~]# mysql -u root -p
    Enter password: 
    Welcome to the MariaDB monitor.  Commands end with ; or g.
    Your MariaDB connection id is 10
    Server version: 5.5.64-MariaDB MariaDB Server
    
    Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
    
    Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
    
    MariaDB [(none)]> SHOW DATABASES;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    +--------------------+
    3 rows in set (0.00 sec)
    
    MariaDB [(none)]> 
    MariaDB [(none)]> SELECT user,host,password FROM mysql.user;
    +------+-----------+-------------------------------------------+
    | user | host      | password                                  |
    +------+-----------+-------------------------------------------+
    | root | localhost | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    | root | 127.0.0.1 | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    | root | ::1       | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    +------+-----------+-------------------------------------------+
    3 rows in set (0.00 sec)
    
    MariaDB [(none)]>
    MariaDB [(none)]> GRANT ALL PRIVILEGES ON *.* TO 'jason'@'172.30.1.101' IDENTIFIED BY 'yinzhengjie' WITH GRANT OPTION;
    Query OK, 0 rows affected (0.00 sec)
    
    MariaDB [(none)]> 
    MariaDB [(none)]> SELECT user,host,password FROM mysql.user;
    +-------+--------------+-------------------------------------------+
    | user  | host         | password                                  |
    +-------+--------------+-------------------------------------------+
    | root  | localhost    | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    | jason | 172.30.1.101 | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    | root  | 127.0.0.1    | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    | root  | ::1          | *BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7 |
    +-------+--------------+-------------------------------------------+
    4 rows in set (0.00 sec)
    
    MariaDB [(none)]> 
    MariaDB [(none)]> SHOW GRANTS FOR jason@'172.30.1.101';
    +--------------------------------------------------------------------------------------------------------------------------------------------+
    | Grants for jason@172.30.1.101                                                                                                              |
    +--------------------------------------------------------------------------------------------------------------------------------------------+
    | GRANT ALL PRIVILEGES ON *.* TO 'jason'@'172.30.1.101' IDENTIFIED BY PASSWORD '*BD0B1F48FDC55BD27555FC2F22FF29A68A25A1D7' WITH GRANT OPTION |
    +--------------------------------------------------------------------------------------------------------------------------------------------+
    1 row in set (0.00 sec)
    
    MariaDB [(none)]> 
    MariaDB [(none)]> QUIT
    Bye
    [root@node107.yizhengjie.org.cn ~]# 
    [root@node107.yizhengjie.org.cn ~]# 

    5>.Nginx节点测试连接数据库

    [root@node101.yinzhengjie.org.cn ~]# mysql -h node107.yinzhengjie.org.cn -u jason -pyinzhengjie
    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 13
    Server version: 5.5.64-MariaDB MariaDB Server
    
    Copyright (c) 2000, 2019, 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 |
    +--------------------+
    3 rows in set (0.01 sec)
    
    mysql> 
    mysql> QUIT
    Bye
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# 

    二.安装Redis并授权

    1>.安装epel源

    [root@node106.yinzhengjie.org.cn ~]# yum -y install epel-release
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirror.bit.edu.cn
     * extras: mirrors.huaweicloud.com
     * updates: mirrors.huaweicloud.com
    base                                                                                                            | 3.6 kB  00:00:00     
    extras                                                                                                          | 2.9 kB  00:00:00     
    updates                                                                                                         | 2.9 kB  00:00:00     
    Resolving Dependencies
    --> Running transaction check
    ---> Package epel-release.noarch 0:7-11 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    =======================================================================================================================================
     Package                              Arch                           Version                      Repository                      Size
    =======================================================================================================================================
    Installing:
     epel-release                         noarch                         7-11                         extras                          15 k
    
    Transaction Summary
    =======================================================================================================================================
    Install  1 Package
    
    Total download size: 15 k
    Installed size: 24 k
    Downloading packages:
    epel-release-7-11.noarch.rpm                                                                                    |  15 kB  00:00:00     
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : epel-release-7-11.noarch                                                                                            1/1 
      Verifying  : epel-release-7-11.noarch                                                                                            1/1 
    
    Installed:
      epel-release.noarch 0:7-11                                                                                                           
    
    Complete!
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# yum -y install epel-release

    2>.利用epel源安装Redis服务

    [root@node106.yinzhengjie.org.cn ~]# yum info redis
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    epel/x86_64/metalink                                                                                            | 9.2 kB  00:00:00     
     * base: mirror.bit.edu.cn
     * epel: mirrors.tuna.tsinghua.edu.cn
     * extras: mirrors.huaweicloud.com
     * updates: mirrors.huaweicloud.com
    epel                                                                                                            | 5.4 kB  00:00:00     
    (1/3): epel/x86_64/group_gz                                                                                     |  90 kB  00:00:00     
    (2/3): epel/x86_64/updateinfo                                                                                   | 1.0 MB  00:00:01     
    (3/3): epel/x86_64/primary_db                                                                                   | 6.9 MB  00:00:01     
    Available Packages
    Name        : redis
    Arch        : x86_64
    Version     : 3.2.12
    Release     : 2.el7
    Size        : 544 k
    Repo        : epel/x86_64
    Summary     : A persistent key-value database
    URL         : http://redis.io
    License     : BSD
    Description : Redis is an advanced key-value store. It is often referred to as a data
                : structure server since keys can contain strings, hashes, lists, sets and
                : sorted sets.
                : 
                : You can run atomic operations on these types, like appending to a string;
                : incrementing the value in a hash; pushing to a list; computing set
                : intersection, union and difference; or getting the member with highest
                : ranking in a sorted set.
                : 
                : In order to achieve its outstanding performance, Redis works with an
                : in-memory dataset. Depending on your use case, you can persist it either
                : by dumping the dataset to disk every once in a while, or by appending
                : each command to a log.
                : 
                : Redis also supports trivial-to-setup master-slave replication, with very
                : fast non-blocking first synchronization, auto-reconnection on net split
                : and so forth.
                : 
                : Other features include Transactions, Pub/Sub, Lua scripting, Keys with a
                : limited time-to-live, and configuration settings to make Redis behave like
                : a cache.
                : 
                : You can use Redis from most programming languages also.
    
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# yum info redis
    [root@node106.yinzhengjie.org.cn ~]# yum -y install redis
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
     * base: mirror.bit.edu.cn
     * epel: mirrors.yun-idc.com
     * extras: mirrors.huaweicloud.com
     * updates: mirrors.huaweicloud.com
    Resolving Dependencies
    --> Running transaction check
    ---> Package redis.x86_64 0:3.2.12-2.el7 will be installed
    --> Processing Dependency: libjemalloc.so.1()(64bit) for package: redis-3.2.12-2.el7.x86_64
    --> Running transaction check
    ---> Package jemalloc.x86_64 0:3.6.0-1.el7 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    =======================================================================================================================================
     Package                         Arch                          Version                               Repository                   Size
    =======================================================================================================================================
    Installing:
     redis                           x86_64                        3.2.12-2.el7                          epel                        544 k
    Installing for dependencies:
     jemalloc                        x86_64                        3.6.0-1.el7                           epel                        105 k
    
    Transaction Summary
    =======================================================================================================================================
    Install  1 Package (+1 Dependent package)
    
    Total download size: 648 k
    Installed size: 1.7 M
    Downloading packages:
    warning: /var/cache/yum/x86_64/7/epel/packages/jemalloc-3.6.0-1.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY 
    Public key for jemalloc-3.6.0-1.el7.x86_64.rpm is not installed
    (1/2): jemalloc-3.6.0-1.el7.x86_64.rpm                                                                          | 105 kB  00:00:00     
    (2/2): redis-3.2.12-2.el7.x86_64.rpm                                                                            | 544 kB  00:00:00     
    ---------------------------------------------------------------------------------------------------------------------------------------
    Total                                                                                                  487 kB/s | 648 kB  00:00:01     
    Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    Importing GPG key 0x352C64E5:
     Userid     : "Fedora EPEL (7) <epel@fedoraproject.org>"
     Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5
     Package    : epel-release-7-11.noarch (@extras)
     From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : jemalloc-3.6.0-1.el7.x86_64                                                                                         1/2 
      Installing : redis-3.2.12-2.el7.x86_64                                                                                           2/2 
      Verifying  : redis-3.2.12-2.el7.x86_64                                                                                           1/2 
      Verifying  : jemalloc-3.6.0-1.el7.x86_64                                                                                         2/2 
    
    Installed:
      redis.x86_64 0:3.2.12-2.el7                                                                                                          
    
    Dependency Installed:
      jemalloc.x86_64 0:3.6.0-1.el7                                                                                                        
    
    Complete!
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# yum -y install redis
    [root@node106.yinzhengjie.org.cn ~]# rpm -ql redis
    /etc/logrotate.d/redis
    /etc/redis-sentinel.conf
    /etc/redis.conf
    /etc/systemd/system/redis-sentinel.service.d
    /etc/systemd/system/redis-sentinel.service.d/limit.conf
    /etc/systemd/system/redis.service.d
    /etc/systemd/system/redis.service.d/limit.conf
    /usr/bin/redis-benchmark
    /usr/bin/redis-check-aof
    /usr/bin/redis-check-rdb
    /usr/bin/redis-cli
    /usr/bin/redis-sentinel
    /usr/bin/redis-server
    /usr/lib/systemd/system/redis-sentinel.service
    /usr/lib/systemd/system/redis.service
    /usr/libexec/redis-shutdown
    /usr/share/doc/redis-3.2.12
    /usr/share/doc/redis-3.2.12/00-RELEASENOTES
    /usr/share/doc/redis-3.2.12/BUGS
    /usr/share/doc/redis-3.2.12/CONTRIBUTING
    /usr/share/doc/redis-3.2.12/MANIFESTO
    /usr/share/doc/redis-3.2.12/README.md
    /usr/share/licenses/redis-3.2.12
    /usr/share/licenses/redis-3.2.12/COPYING
    /usr/share/man/man1/redis-benchmark.1.gz
    /usr/share/man/man1/redis-check-aof.1.gz
    /usr/share/man/man1/redis-check-rdb.1.gz
    /usr/share/man/man1/redis-cli.1.gz
    /usr/share/man/man1/redis-sentinel.1.gz
    /usr/share/man/man1/redis-server.1.gz
    /usr/share/man/man5/redis-sentinel.conf.5.gz
    /usr/share/man/man5/redis.conf.5.gz
    /var/lib/redis
    /var/log/redis
    /var/run/redis
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# rpm -ql redis

    3>.启动Redis

    [root@node106.yinzhengjie.org.cn ~]# grep bind /etc/redis.conf | grep -v ^#
    bind 127.0.0.1
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# vim /etc/redis.conf 
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# grep bind /etc/redis.conf | grep -v ^#
    bind 172.30.1.106
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# ss -ntl
    State       Recv-Q Send-Q                      Local Address:Port                                     Peer Address:Port              
    LISTEN      0      128                                     *:80                                                  *:*                  
    LISTEN      0      128                                     *:22                                                  *:*                  
    LISTEN      0      128                                    :::22                                                 :::*                  
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# systemctl start redis
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# ss -ntl
    State       Recv-Q Send-Q                      Local Address:Port                                     Peer Address:Port              
    LISTEN      0      128                          172.30.1.106:6379                                                *:*                  
    LISTEN      0      128                                     *:80                                                  *:*                  
    LISTEN      0      128                                     *:22                                                  *:*                  
    LISTEN      0      128                                    :::22                                                 :::*                  
    [root@node106.yinzhengjie.org.cn ~]# 
    [root@node106.yinzhengjie.org.cn ~]# 

    三.配置Nginx支持Mysql和Redis数据库的负载均衡实战

    1>.修改nginx的主配置文件

    [root@node101.yinzhengjie.org.cn ~]# cat /yinzhengjie/softwares/nginx/conf/nginx.conf
    worker_processes  4;
    worker_cpu_affinity 00000001 00000010 00000100 00001000; 
     
    events {
       worker_connections  100000;
       use epoll;
       accept_mutex on;
       multi_accept on; 
    }
     
    #加载Nginx支持的TCP反向代理配置文件
    include /yinzhengjie/softwares/nginx/conf/tcp/*.conf;
      
    http {
         include       mime.types;
           
         default_type  text/html;
        
         server_tokens off; 
          
         charset utf-8;
       
         log_format my_access_json '{"@timestamp":"$time_iso8601",' '"host":"$server_addr",' '"clientip":"$remote_addr",' '"size":$body_bytes_sent,' '"responsetime":$request_ti
    me,' '"upstreamtime":"$upstream_response_time",' '"upstreamhost":"$upstream_addr",' '"http_host":"$host",' '"uri":"$uri",' '"domain":"$host",' '"xff":"$http_x_forwarded_for",' '"referer":"$http_referer",' '"tcp_xff":"$proxy_protocol_addr",' '"http_user_agent":"$http_user_agent",' '"status":"$status"}';   
        access_log logs/access_json.log my_access_json;
     
        ssl_certificate /yinzhengjie/softwares/nginx/certs/www.yinzhengjie.org.cn.crt;
        ssl_certificate_key /yinzhengjie/softwares/nginx/certs/www.yinzhengjie.org.cn.key;
        ssl_session_cache shared:sslcache:20m;
        ssl_session_timeout 10m;
      
        include /yinzhengjie/softwares/nginx/conf.d/*.conf;
    }
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# nginx -t
    nginx: the configuration file /yinzhengjie/softwares/nginx/conf/nginx.conf syntax is ok
    nginx: configuration file /yinzhengjie/softwares/nginx/conf/nginx.conf test is successful
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# 

    2>.修改nginx的子配置文件

    [root@node101.yinzhengjie.org.cn ~]# cat /yinzhengjie/softwares/nginx/conf/tcp/tcp.conf
    stream {
        upstream redis_server {
            server 172.30.1.106:6379 max_fails=3 fail_timeout=30s;
        }
    
        upstream mysql_server {
            least_conn;
            server 172.30.1.107:3306 max_fails=3 fail_timeout=30s;
        }
    
        server {
            listen 172.30.1.101:3306;
            proxy_connect_timeout 6s;
            proxy_timeout 15s;
            proxy_pass mysql_server;
        }
    
        server {
            listen 172.30.1.101:6379;
            proxy_connect_timeout 3s;
            proxy_timeout 3s;
            proxy_pass redis_server;
       }
    }
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# nginx -t
    nginx: the configuration file /yinzhengjie/softwares/nginx/conf/nginx.conf syntax is ok
    nginx: configuration file /yinzhengjie/softwares/nginx/conf/nginx.conf test is successful
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# 

    3>.启动nginx服务

    [root@node101.yinzhengjie.org.cn ~]# netstat -untalp | grep nginx
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# nginx                 
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# netstat -untalp | grep nginx
    tcp        0      0 172.30.1.101:3306       0.0.0.0:*               LISTEN      23976/nginx: master 
    tcp        0      0 172.30.1.101:6379       0.0.0.0:*               LISTEN      23976/nginx: master 
    tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      23976/nginx: master 
    tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN      23976/nginx: master 
    [root@node101.yinzhengjie.org.cn ~]# 
    [root@node101.yinzhengjie.org.cn ~]# 

    4>.客户端测试

    [root@node105.yinzhengjie.org.cn ~]# yum -y install mariadb-5.5.64-1.el7.x86_64  redis-3.2.12-2.el7.x86_64
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    epel/x86_64/metalink                                                                                                                                 | 8.8 kB  00:00:00     
     * base: mirrors.huaweicloud.com
     * epel: mirrors.aliyun.com
     * extras: mirrors.huaweicloud.com
     * updates: mirrors.huaweicloud.com
    epel                                                                                                                                                 | 5.4 kB  00:00:00     
    (1/3): epel/x86_64/group_gz                                                                                                                          |  90 kB  00:00:00     
    (2/3): epel/x86_64/updateinfo                                                                                                                        | 1.0 MB  00:00:00     
    (3/3): epel/x86_64/primary_db                                                                                                                        | 6.9 MB  00:00:00     
    Resolving Dependencies
    --> Running transaction check
    ---> Package mariadb.x86_64 1:5.5.64-1.el7 will be installed
    ---> Package redis.x86_64 0:3.2.12-2.el7 will be installed
    --> Processing Dependency: libjemalloc.so.1()(64bit) for package: redis-3.2.12-2.el7.x86_64
    --> Running transaction check
    ---> Package jemalloc.x86_64 0:3.6.0-1.el7 will be installed
    --> Finished Dependency Resolution
    
    Dependencies Resolved
    
    ============================================================================================================================================================================
     Package                                  Arch                                   Version                                         Repository                            Size
    ============================================================================================================================================================================
    Installing:
     mariadb                                  x86_64                                 1:5.5.64-1.el7                                  base                                 8.7 M
     redis                                    x86_64                                 3.2.12-2.el7                                    epel                                 544 k
    Installing for dependencies:
     jemalloc                                 x86_64                                 3.6.0-1.el7                                     epel                                 105 k
    
    Transaction Summary
    ============================================================================================================================================================================
    Install  2 Packages (+1 Dependent package)
    
    Total download size: 9.4 M
    Installed size: 50 M
    Downloading packages:
    warning: /var/cache/yum/x86_64/7/epel/packages/jemalloc-3.6.0-1.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 352c64e5: NOKEY
    Public key for jemalloc-3.6.0-1.el7.x86_64.rpm is not installed
    (1/3): jemalloc-3.6.0-1.el7.x86_64.rpm                                                                                                               | 105 kB  00:00:00     
    (2/3): redis-3.2.12-2.el7.x86_64.rpm                                                                                                                 | 544 kB  00:00:00     
    (3/3): mariadb-5.5.64-1.el7.x86_64.rpm                                                                                                               | 8.7 MB  00:00:01     
    ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
    Total                                                                                                                                       7.9 MB/s | 9.4 MB  00:00:01     
    Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    Importing GPG key 0x352C64E5:
     Userid     : "Fedora EPEL (7) <epel@fedoraproject.org>"
     Fingerprint: 91e9 7d7c 4a5e 96f1 7f3e 888f 6a2f aea2 352c 64e5
     Package    : epel-release-7-11.noarch (@extras)
     From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
    Running transaction check
    Running transaction test
    Transaction test succeeded
    Running transaction
      Installing : jemalloc-3.6.0-1.el7.x86_64                                                                                                                              1/3 
      Installing : redis-3.2.12-2.el7.x86_64                                                                                                                                2/3 
      Installing : 1:mariadb-5.5.64-1.el7.x86_64                                                                                                                            3/3 
      Verifying  : redis-3.2.12-2.el7.x86_64                                                                                                                                1/3 
      Verifying  : 1:mariadb-5.5.64-1.el7.x86_64                                                                                                                            2/3 
      Verifying  : jemalloc-3.6.0-1.el7.x86_64                                                                                                                              3/3 
    
    Installed:
      mariadb.x86_64 1:5.5.64-1.el7                                                         redis.x86_64 0:3.2.12-2.el7                                                        
    
    Dependency Installed:
      jemalloc.x86_64 0:3.6.0-1.el7                                                                                                                                             
    
    Complete!
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# yum -y install mariadb-5.5.64-1.el7.x86_64 redis-3.2.12-2.el7.x86_64        #安装mariadb和redis的客户端连接工具
    [root@node105.yinzhengjie.org.cn ~]# which mysql
    /usr/bin/mysql
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# rpm -qf /usr/bin/mysql
    mariadb-5.5.64-1.el7.x86_64
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# which redis-cli
    /usr/bin/redis-cli
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# rpm -qf /usr/bin/redis-cli
    redis-3.2.12-2.el7.x86_64
    [root@node105.yinzhengjie.org.cn ~]# 

    4>.连接mariadb服务器

    [root@node105.yinzhengjie.org.cn ~]# mysql -h node101.yinzhengjie.org.cn -u jason -pyinzhengjie
    Welcome to the MariaDB monitor.  Commands end with ; or g.
    Your MariaDB connection id is 16
    Server version: 5.5.64-MariaDB MariaDB Server
    
    Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
    
    Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.
    
    MariaDB [(none)]> 
    MariaDB [(none)]> SHOW DATABASES;
    +--------------------+
    | Database           |
    +--------------------+
    | information_schema |
    | mysql              |
    | performance_schema |
    +--------------------+
    rows in set (0.00 sec)
    
    MariaDB [(none)]> 
    MariaDB [(none)]> QUIT
    Bye
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# 

    5>.连接redis服务器

    [root@node105.yinzhengjie.org.cn ~]# redis-cli -h node101.yinzhengjie.org.cn
    node101.yinzhengjie.org.cn:6379> 
    node101.yinzhengjie.org.cn:6379> SET name jason2019
    OK
    node101.yinzhengjie.org.cn:6379> GET name
    "jason2019"
    node101.yinzhengjie.org.cn:6379> 
    node101.yinzhengjie.org.cn:6379> QUIT
    [root@node105.yinzhengjie.org.cn ~]# 
    [root@node105.yinzhengjie.org.cn ~]# 

     

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  • 原文地址:https://www.cnblogs.com/yinzhengjie/p/12110857.html
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