简体中文版经机器翻译而成，仅供参考。如与英语版出现任何冲突，应以英语版为准。

安装MetroCluster Tieber1.5依赖关系

04/25/2024 贡献者

PDF

根据您的主机Linux操作系统、您必须先安装MySQL或MariaDB服务器、然后再安装或升级Tieb破碎机软件。

步骤

安装JDK
安装和配置存储

安装 MySQL 或 MariaDB 服务器：

如果 Linux 主机为

那么 …

Red Hat Enterprise Linux 7/CentOS 7.

在Red Hat Enterprise Linux 7或CentOS 7上安装MySQL Server 5.5.30或更高版本以及5.6.x版本

Red Hat Enterprise Linux 8

在Red Hat Enterprise Linux 8上安装MariaDB服务器

安装JDK

在安装或升级Tieb破碎机软件之前、您必须在主机系统上安装JDK。Tieber1.5及更高版本支持OpenJDK 17、18或19。

步骤

以"root"用户或可更改为高级权限模式的sudo用户身份登录。

login as: root
root@mcctb's password:
Last login: Fri Jan  8 21:33:00 2017 from host.domain.com

检查可用的JDK版本：

yum search openjdk
安装JDK 17、18或19。

以下命令将安装JDK 17：

yum install java-17-openjdk

验证安装。

java -version

成功安装将显示以下输出：

openjdk version "17.0.2" 2022-01-18 LTS
OpenJDK Runtime Environment 21.9 (build 17.0.2+8-LTS)
OpenJDK 64-Bit Server VM 21.9 (build 17.0.2+8-LTS, mixed mode, sharing)

安装和配置存储

如果您没有或不想使用本地存储服务器、则必须安装存储。您可以参考此标准操作步骤来安装存储、也可以参考Hashicorp安装说明来了解其他准则。

如果网络中有存储服务器、则可以将MetroCluster Tiebreaker主机配置为使用该存储安装。如果执行此操作、则不需要在主机上安装存储。

步骤

导航到 /bin 目录：
```
[root@mcctb] cd /bin
```

下载存储zip文件。

[root@mcctb /bin]#  curl -sO https://releases.hashicorp.com/vault/1.12.2/vault_1.12.2_linux_amd64.zip

解压缩存储文件。

[root@mcctb /bin]# unzip vault_1.12.2_linux_amd64.zip
Archive:  vault_1.12.2_linux_amd64.zip
  inflating: vault

验证安装。

[root@mcctb /bin]# vault -version
Vault v1.12.2 (415e1fe3118eebd5df6cb60d13defdc01aa17b03), built 2022-11-23T12:53:46Z

导航到 /root 目录：
```
[root@mcctb /bin] cd /root
```

在下创建存储配置文件 /root 目录。

在 [root@mcctb ~] 提示符下、复制并运行以下命令以创建 config.hcl 文件：

# cat > config.hcl << EOF
 storage "file" {
  address = "127.0.0.1:8500"
  path    = "/mcctb_vdata/data"
 }
 listener "tcp" {
   address     = "127.0.0.1:8200"
   tls_disable = 1
 }
EOF

启动存储服务器：

[root@mcctb ~] vault server -config config.hcl &

导出存储地址。

[root@mcctb ~]# export VAULT_ADDR="http://127.0.0.1:8200"

初始化存储。

[root@mcctb ~]# vault operator init
2022-12-15T14:57:22.113+0530 [INFO]  core: security barrier not initialized
2022-12-15T14:57:22.113+0530 [INFO]  core: seal configuration missing, not initialized
2022-12-15T14:57:22.114+0530 [INFO]  core: security barrier not initialized
2022-12-15T14:57:22.116+0530 [INFO]  core: security barrier initialized: stored=1 shares=5 threshold=3
2022-12-15T14:57:22.118+0530 [INFO]  core: post-unseal setup starting
2022-12-15T14:57:22.137+0530 [INFO]  core: loaded wrapping token key
2022-12-15T14:57:22.137+0530 [INFO]  core: Recorded vault version: vault version=1.12.2 upgrade time="2022-12-15 09:27:22.137200412 +0000 UTC" build date=2022-11-23T12:53:46Z
2022-12-15T14:57:22.137+0530 [INFO]  core: successfully setup plugin catalog: plugin-directory=""
2022-12-15T14:57:22.137+0530 [INFO]  core: no mounts; adding default mount table
2022-12-15T14:57:22.143+0530 [INFO]  core: successfully mounted backend: type=cubbyhole version="" path=cubbyhole/
2022-12-15T14:57:22.144+0530 [INFO]  core: successfully mounted backend: type=system version="" path=sys/
2022-12-15T14:57:22.144+0530 [INFO]  core: successfully mounted backend: type=identity version="" path=identity/
2022-12-15T14:57:22.148+0530 [INFO]  core: successfully enabled credential backend: type=token version="" path=token/ namespace="ID: root. Path: "
2022-12-15T14:57:22.149+0530 [INFO]  rollback: starting rollback manager
2022-12-15T14:57:22.149+0530 [INFO]  core: restoring leases
2022-12-15T14:57:22.150+0530 [INFO]  expiration: lease restore complete
2022-12-15T14:57:22.150+0530 [INFO]  identity: entities restored
2022-12-15T14:57:22.150+0530 [INFO]  identity: groups restored
2022-12-15T14:57:22.151+0530 [INFO]  core: usage gauge collection is disabled
2022-12-15T14:57:23.385+0530 [INFO]  core: post-unseal setup complete
2022-12-15T14:57:23.387+0530 [INFO]  core: root token generated
2022-12-15T14:57:23.387+0530 [INFO]  core: pre-seal teardown starting
2022-12-15T14:57:23.387+0530 [INFO]  rollback: stopping rollback manager
2022-12-15T14:57:23.387+0530 [INFO]  core: pre-seal teardown complete
Unseal Key 1: <unseal_key_1_id>
Unseal Key 2: <unseal_key_2_id>
Unseal Key 3: <unseal_key_3_id>
Unseal Key 4: <unseal_key_4_id>
Unseal Key 5: <unseal_key_5_id>

Initial Root Token: <initial_root_token_id>


Vault initialized with 5 key shares and a key threshold of 3. Please securely
distribute the key shares printed above. When the Vault is re-sealed,
restarted, or stopped, you must supply at least 3 of these keys to unseal it
before it can start servicing requests.

Vault does not store the generated root key. Without at least 3 keys to
reconstruct the root key, Vault will remain permanently sealed!

It is possible to generate new unseal keys, provided you have a quorum of
existing unseal keys shares. See "vault operator rekey" for more information.

您必须将密钥ID和初始根令牌记录并存储在一个安全位置、以供日后在操作步骤中使用。

导出存储根令牌。

[root@mcctb ~]#  export VAULT_TOKEN="<initial_root_token_id>"

使用创建的五个密钥中的任意三个来打开存储。

您必须运行 vault operator unseal 命令：

使用第一个密钥打开存储：

[root@mcctb ~]# vault operator unseal
Unseal Key (will be hidden):
Key                Value
---                -----
Seal Type          shamir
Initialized        true
Sealed             true
Total Shares       5
Threshold          3
Unseal Progress    1/3
Unseal Nonce       <unseal_key_1_id>
Version            1.12.2
Build Date         2022-11-23T12:53:46Z
Storage Type       file
HA Enabled         false

使用第二个密钥打开存储：

[root@mcctb ~]# vault operator unseal
Unseal Key (will be hidden):
Key                Value
---                -----
Seal Type          shamir
Initialized        true
Sealed             true
Total Shares       5
Threshold          3
Unseal Progress    2/3
Unseal Nonce       <unseal_key_2_id>
Version            1.12.2
Build Date         2022-11-23T12:53:46Z
Storage Type       file
HA Enabled         false

使用第三个密钥打开存储：

[root@mcctb ~]# vault operator unseal
Unseal Key (will be hidden):
2022-12-15T15:15:00.980+0530 [INFO]  core.cluster-listener.tcp: starting listener: listener_address=127.0.0.1:8201
2022-12-15T15:15:00.980+0530 [INFO]  core.cluster-listener: serving cluster requests: cluster_listen_address=127.0.0.1:8201
2022-12-15T15:15:00.981+0530 [INFO]  core: post-unseal setup starting
2022-12-15T15:15:00.981+0530 [INFO]  core: loaded wrapping token key
2022-12-15T15:15:00.982+0530 [INFO]  core: successfully setup plugin catalog: plugin-directory=""
2022-12-15T15:15:00.983+0530 [INFO]  core: successfully mounted backend: type=system version="" path=sys/
2022-12-15T15:15:00.984+0530 [INFO]  core: successfully mounted backend: type=identity version="" path=identity/
2022-12-15T15:15:00.984+0530 [INFO]  core: successfully mounted backend: type=cubbyhole version="" path=cubbyhole/
2022-12-15T15:15:00.986+0530 [INFO]  core: successfully enabled credential backend: type=token version="" path=token/ namespace="ID: root. Path: "
2022-12-15T15:15:00.986+0530 [INFO]  rollback: starting rollback manager
2022-12-15T15:15:00.987+0530 [INFO]  core: restoring leases
2022-12-15T15:15:00.987+0530 [INFO]  expiration: lease restore complete
2022-12-15T15:15:00.987+0530 [INFO]  identity: entities restored
2022-12-15T15:15:00.987+0530 [INFO]  identity: groups restored
2022-12-15T15:15:00.988+0530 [INFO]  core: usage gauge collection is disabled
2022-12-15T15:15:00.989+0530 [INFO]  core: post-unseal setup complete
2022-12-15T15:15:00.989+0530 [INFO]  core: vault is unsealed
Key             Value
---             -----
Seal Type       shamir
Initialized     true
Sealed          false
Total Shares    5
Threshold       3
Version         1.12.2
Build Date      2022-11-23T12:53:46Z
Storage Type    file
Cluster Name    vault-cluster
Cluster ID      <cluster_id>
HA Enabled      false

验证存储密封状态是否为false。

[root@mcctb ~]# vault status
Key             Value
---             -----
Seal Type       shamir
Initialized     true
Sealed          false
Total Shares    5
Threshold       3
Version         1.12.2
Build Date      2022-11-23T12:53:46Z
Storage Type    file
Cluster Name    vault-cluster
Cluster ID      <cluster_id>
HA Enabled      false

将存储服务配置为在引导时启动。

运行以下命令： cd /etc/systemd/system
```
[root@mcctb ~]#  cd /etc/systemd/system
```

在 [root@mcctb system] 提示符下、复制并运行以下命令以创建存储服务文件。

# cat > vault.service << EOF
[Unit]
Description=Vault Service
After=mariadb.service

[Service]
Type=forking
ExecStart=/usr/bin/vault server -config /root/config.hcl &
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

运行以下命令： systemctl daemon-reload

[root@mcctb system]#  systemctl daemon-reload

运行以下命令： systemctl enable vault.service
```
[root@mcctb system]#  systemctl enable vault.service
Created symlink /etc/systemd/system/multi-user.target.wants/vault.service → /etc/systemd/system/vault.service.
```
在安装MetroCluster Tiebreaker期间、系统会提示您使用此功能。如果要更改此方法以取消存储密封、则需要卸载并重新安装MetroCluster Tiebreaker软件。

在Red Hat Enterprise Linux 7或CentOS 7上安装MySQL Server 5.5.30或更高版本以及5.6.x版本

在安装或升级 Tiebreaker 软件之前，必须在主机系统上安装 MySQL Server 5.5.30 或更高版本以及 5.6.x 版本。对于Red Hat Enterprise Linux 8、安装MariaDB服务器。

步骤

以root用户或可更改为高级权限模式的sudo用户身份登录。

login as: root
root@mcctb's password:
Last login: Fri Jan  8 21:33:00 2016 from host.domain.com

将 MySQL 存储库添加到主机系统：

` 根@mcctb ~ ]# yum localinstall https://dev.mysql.com/get/mysql57-community-release-el6-11.noarch.rpm`

Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
Setting up Local Package Process
Examining /var/tmp/yum-root-LLUw0r/mysql-community-release-el6-5.noarch.rpm: mysql-community-release-el6-5.noarch
Marking /var/tmp/yum-root-LLUw0r/mysql-community-release-el6-5.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-release.noarch 0:el6-5 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package               Arch   Version
                                    Repository                             Size
================================================================================
Installing:
mysql-community-release
                       noarch el6-5 /mysql-community-release-el6-5.noarch 4.3 k
Transaction Summary
================================================================================
Install       1 Package(s)
Total size: 4.3 k
Installed size: 4.3 k
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-community-release-el6-5.noarch                         1/1
  Verifying  : mysql-community-release-el6-5.noarch                         1/1
Installed:
  mysql-community-release.noarch 0:el6-5
Complete!

禁用MySQL 57存储库：

` 根@mcctb ~ ]# yam-config-manager -disable mysql57-community`
启用MySQL 56存储库：

` 根@mcctb ~ ]# yam-config-manager -enable mysql56-community`

启用存储库：

` 根@mcctb ~ ]# yum repolist enabled | grep "mysql.-community."`

mysql-connectors-community           MySQL Connectors Community            21
mysql-tools-community                MySQL Tools Community                 35
mysql56-community                    MySQL 5.6 Community Server           231

安装 MySQL 社区服务器：

` 根@mcctb ~ ]# yum install mysql-commune-server`

Loaded plugins: product-id, refresh-packagekit, security, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager
to register.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
 .....Output truncated.....
---> Package mysql-community-libs-compat.x86_64 0:5.6.29-2.el6 will be obsoleting
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================
Package                          Arch   Version       Repository          Size
==============================================================================
Installing:
 mysql-community-client         x86_64  5.6.29-2.el6  mysql56-community  18  M
     replacing  mysql.x86_64 5.1.71-1.el6
 mysql-community-libs           x86_64  5.6.29-2.el6  mysql56-community  1.9 M
     replacing  mysql-libs.x86_64 5.1.71-1.el6
 mysql-community-libs-compat    x86_64  5.6.29-2.el6  mysql56-community  1.6 M
     replacing  mysql-libs.x86_64 5.1.71-1.el6
 mysql-community-server         x86_64  5.6.29-2.el6  mysql56-community  53  M
     replacing  mysql-server.x86_64 5.1.71-1.el6
Installing for dependencies:
mysql-community-common          x86_64  5.6.29-2.el6  mysql56-community   308 k

Transaction Summary
===============================================================================
Install       5 Package(s)
Total download size: 74 M
Is this ok [y/N]: y
Downloading Packages:
(1/5): mysql-community-client-5.6.29-2.el6.x86_64.rpm       |  18 MB     00:28
(2/5): mysql-community-common-5.6.29-2.el6.x86_64.rpm       | 308 kB     00:01
(3/5): mysql-community-libs-5.6.29-2.el6.x86_64.rpm         | 1.9 MB     00:05
(4/5): mysql-community-libs-compat-5.6.29-2.el6.x86_64.rpm  | 1.6 MB     00:05
(5/5): mysql-community-server-5.6.29-2.el6.x86_64.rpm       |  53 MB     03:42
 -------------------------------------------------------------------------------
Total                                              289 kB/s |  74 MB     04:24
warning: rpmts_HdrFromFdno: Header V3 DSA/SHA1 Signature, key ID <key_id> NOKEY
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>
Package: mysql-community-release-el6-5.noarch
         (@/mysql-community-release-el6-5.noarch)
 From   : file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
Is this ok [y/N]: y
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-community-common-5.6.29-2.el6.x86_64
....Output truncated....
1.el6.x86_64                                                               7/8
  Verifying  : mysql-5.1.71-1.el6.x86_64                       	           8/8
Installed:
  mysql-community-client.x86_64 0:5.6.29-2.el6
  mysql-community-libs.x86_64 0:5.6.29-2.el6
  mysql-community-libs-compat.x86_64 0:5.6.29-2.el6
  mysql-community-server.x86_64 0:5.6.29-2.el6

Dependency Installed:
  mysql-community-common.x86_64 0:5.6.29-2.el6

Replaced:
  mysql.x86_64 0:5.1.71-1.el6 mysql-libs.x86_64 0:5.1.71-1.el6
  mysql-server.x86_64 0:5.1.71-1.el6
Complete!

启动 MySQL 服务器：

` 根@mcctb ~ ]# service mysqld start`

Initializing MySQL database:  2016-04-05 19:44:38 0 [Warning] TIMESTAMP
with implicit DEFAULT value is deprecated. Please use
--explicit_defaults_for_timestamp server option (see documentation
for more details).
2016-04-05 19:44:38 0 [Note] /usr/sbin/mysqld (mysqld 5.6.29)
        starting as process 2487 ...
2016-04-05 19:44:38 2487 [Note] InnoDB: Using atomics to ref count
        buffer pool pages
2016-04-05 19:44:38 2487 [Note] InnoDB: The InnoDB memory heap is disabled
....Output truncated....
2016-04-05 19:44:42 2509 [Note] InnoDB: Shutdown completed; log sequence
       number 1625987

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER!
To do so, start the server, then issue the following commands:

  /usr/bin/mysqladmin -u root password 'new-password'
  /usr/bin/mysqladmin -u root -h mcctb password 'new-password'

Alternatively, you can run:
  /usr/bin/mysql_secure_installation

which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.
.....Output truncated.....
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server

                                                           [  OK  ]
Starting mysqld:                                           [  OK  ]

确认 MySQL 服务器正在运行：

` 根@mcctb ~ ]# service mysqld status`
```
mysqld (pid  2739) is running...
```

配置安全性和密码设置：

` 根@mcctb ~ ]# mysql_secure 安装`

NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
       SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!

 In order to log into MySQL to secure it, we'll need the current
 password for the root user.  If you've just installed MySQL, 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):   <== on default install
                                                         hit enter here
 OK, successfully used password, moving on...

 Setting the root password ensures that nobody can log into the MySQL
 root user without the proper authorization.

 Set root password? [Y/n] y
 New password:
 Re-enter new password:
 Password updated successfully!
 Reloading privilege tables..
  ... Success!

 By default, a MySQL installation has an anonymous user, allowing anyone
 to log into MySQL 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, MySQL 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...
 ERROR 1008 (HY000) at line 1: Can't drop database 'test';
 database doesn't exist
  ... Failed!  Not critical, keep moving...
  - 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!

 All done!  If you've completed all of the above steps, your MySQL
 installation should now be secure.

 Thanks for using MySQL!

 Cleaning up...

验证 MySQL 登录是否正常工作：

` 根@mcctb ~ ]# mysql -u root – p`

Enter password: <configured_password>
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 17
Server version: 5.6.29 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, 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>

如果 MySQL 登录正常，输出将在 mysql> 提示符处结束。

启用MySQL自动启动设置

您应验证是否已为MySQL守护进程启用自动启动功能。如果 MetroCluster Tiebreaker 软件所在的系统重新启动，则打开 MySQL 守护进程会自动重新启动 MySQL 。如果 MySQL 守护进程未运行， Tiebreaker 软件将继续运行，但无法重新启动，并且无法更改配置。

步骤

验证是否已启用 MySQL 在启动时自动启动：

` 根@mcctb ~ ]# systemctl list-unit-files mysqld.service`
```
UNIT FILE          State
------------------ ----------
mysqld.service     enabled
```
如果在启动时未启用 MySQL 自动启动，请参见 MySQL 文档为您的安装启用自动启动功能。

在Red Hat Enterprise Linux 8上安装MariaDB服务器

在安装或升级 Tiebreaker 软件之前，必须在主机系统上安装 MariaDB 服务器。对于Red Hat Enterprise Linux 7或CentOS 7、安装MySQL Server。

开始之前

主机系统必须运行在 Red Hat Enterprise Linux （ RHEL ） 8 上。

步骤

以登录身份 root 可通过sudo进入高级权限模式的用户。

login as: root
root@mcctb's password:
Last login: Fri Jan  8 21:33:00 2017 from host.domain.com

安装MariaDB服务器：

` 根@mcctb ~ ]# yum install MariaDB-server.x86_64`

[root@mcctb ~]# yum install mariadb-server.x86_64
Loaded plugins: fastestmirror, langpacks
 ...
 ...

===========================================================================
 Package                      Arch   Version         Repository        Size
===========================================================================
Installing:
mariadb-server               x86_64   1:5.5.56-2.el7   base            11 M
Installing for dependencies:

Transaction Summary
===========================================================================
Install  1 Package  (+8 Dependent packages)
Upgrade             ( 1 Dependent package)

Total download size: 22 M
Is this ok [y/d/N]: y

Downloading packages:
No Presto metadata available for base warning:
/var/cache/yum/x86_64/7/base/packages/mariadb-libs-5.5.56-2.el7.x86_64.rpm:
Header V3 RSA/SHA256 Signature,
key ID f4a80eb5: NOKEY] 1.4 MB/s | 3.3 MB  00:00:13 ETA
Public key for mariadb-libs-5.5.56-2.el7.x86_64.rpm is not installed
(1/10): mariadb-libs-5.5.56-2.el7.x86_64.rpm  | 757 kB  00:00:01
..
..
(10/10): perl-Net-Daemon-0.48-5.el7.noarch.rpm|  51 kB  00:00:01
-----------------------------------------------------------------------------------------
Installed:
  mariadb-server.x86_64 1:5.5.56-2.el7

Dependency Installed:
mariadb.x86_64 1:5.5.56-2.el7
perl-Compress-Raw-Bzip2.x86_64 0:2.061-3.el7
perl-Compress-Raw-Zlib.x86_64 1:2.061-4.el7
perl-DBD-MySQL.x86_64 0:4.023-5.el7
perl-DBI.x86_64 0:1.627-4.el7
perl-IO-Compress.noarch 0:2.061-2.el7
perl-Net-Daemon.noarch 0:0.48-5.el7
perl-PlRPC.noarch 0:0.2020-14.el7

Dependency Updated:
  mariadb-libs.x86_64 1:5.5.56-2.el7
Complete!

启动 MariaDB 服务器：

` 根@mcctb ~ ]# systemctl start MariaDB`

验证MariaDB服务器是否已启动：

` 根@mcctb ~ ]# systemctl status MariaDB`

[root@mcctb ~]# systemctl status mariadb
mariadb.service - MariaDB database server
...
Nov 08 21:28:59 mcctb systemd[1]: Starting MariaDB database server...
...
Nov 08 21:29:01 mcctb systemd[1]: Started MariaDB database server.

配置安全性和密码设置：

当系统提示您输入root密码时、请将其留空、然后按Enter继续配置安全和密码设置。

` 根@mcctb ~ ]# mysql_secure 安装`

root@localhost systemd]# 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]

 ... 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!

为MariaDB服务器启用自动启动设置

您应验证是否已为MariaDB服务器启用自动启动功能。如果不启用自动启动功能，并且 MetroCluster Tiebreaker 软件所在的系统必须重新启动，则 Tiebreaker 软件将继续运行，但无法重新启动 MariaDB 服务，也无法更改配置。

步骤

启用自动启动服务：

` 根@mcctb ~ ]# systemctl enable mariadb.service`
验证启动时 MariaDB 是否已启用自动启动：

` 根@mcctb ~ ]# systemctl list-unit-files mariadb.service`
```
UNIT FILE          State
------------------ ----------
mariadb.service    enabled
```

安装MetroCluster Tieber1.5依赖关系

Creating your file...

安装JDK

安装和配置存储

在Red Hat Enterprise Linux 7或CentOS 7上安装MySQL Server 5.5.30或更高版本以及5.6.x版本

启用MySQL自动启动设置

在Red Hat Enterprise Linux 8上安装MariaDB服务器

为MariaDB服务器启用自动启动设置