二进制包安装

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本文档主要介绍如何用二进制包方式安装GreatSQL数据库，假定本次安装是在CentOS 8.x x86_64环境中安装，并且是以root用户身份执行安装操作。

下载安装包

点击此处 (opens new window)下载最新的安装包，下载以下文件：

• GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal.tar.xz

运行环境配置

关闭selinux和防火墙

#关闭selinux
$ setenforce=0
$ sed -i '/^SELINUX=/c'SELINUX=disabled /etc/selinux/config

#关闭防火墙
$ systemctl disable firewalld
$ systemctl stop firewalld
$ systemctl disable iptables
$ systemctl stop iptables

另外，要先确认YUM源可用，因为安装GreatSQL时还要先安装其他依赖包，通过YUM安装最省事。

如果需要配置YUM源，可以参考这篇文档 (opens new window)。

安装依赖包

安装GreatSQL RPM包时，要先安装这些相关依赖包。

$ yum install -y pkg-config perl libaio-devel numactl-devel numactl-libs net-tools openssl openssl-devel jemalloc jemalloc-devel

如果有更多依赖包需要安装，请自行添加。

下载二进制包并安装

将下载的二进制包放在安装目录 /usr/local/ 下，并解压缩：

# 下载
$ cd /usr/local
$ wget https://product.greatdb.com/GreatSQL-8.0.25-16/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal.tar.xz
#或者用curl
$ curl -o GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal.tar.xz https://product.greatdb.com/GreatSQL-8.0.25-16/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal.tar.xz

#解压缩
$ tar xf GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal.tar.xz

编辑systemd系统服务文件，增加GreatSQL服务文件：

$ vim /lib/systemd/system/greatsql.service

[Unit]
Description=GreatSQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]

# some limits
# file size
LimitFSIZE=infinity
# cpu time
LimitCPU=infinity
# virtual memory size
LimitAS=infinity
# open files
LimitNOFILE=65535
# processes/threads
LimitNPROC=65535
# locked memory
LimitMEMLOCK=infinity
# total threads (user+kernel)
TasksMax=infinity
TasksAccounting=false

User=mysql
Group=mysql
#如果是GreatSQL 5.7版本，此处需要改成simple模式，否则可能服务启用异常
#如果是GreatSQL 8.0版本则可以使用notify模式
#Type=simple
Type=notify
TimeoutSec=0
PermissionsStartOnly=true
ExecStartPre=/usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld_pre_systemd
ExecStart=/usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld $MYSQLD_OPTS
EnvironmentFile=-/etc/sysconfig/mysql
LimitNOFILE = 10000
Restart=on-failure
RestartPreventExitStatus=1
Environment=MYSQLD_PARENT_PID=1
PrivateTmp=false

务必确认文件中目录及文件名是否正确。

执行命令重载systemd，加入 greatsql 服务，如果没问题就不会报错：

$ systemctl daemon-reload

这就安装成功并将GreatSQL添加到系统服务中，后面可以用 systemctl 来管理GreatSQL服务。

GreatSQL二进制包中没有自带 mysqld_pre_systemd 脚本文件，需要自行下载。

点击本链接 (opens new window) 复制脚本内容，并保存成文件 /usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld_pre_systemd，确认第25行附近 MYSQL_BASEDIR 所指的路径是否正确：

MYSQL_BASEDIR = /usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal

之后修改文件属性，加上可执行权限：

$ chmod ug+x /usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld_pre_systemd

编辑GreatSQL全局配置文件 /etc/my.cnf，加入下面内容：

[mysqld]
user=mysql
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock

log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

保存退出。

创建mysql系统用户：

$ /sbin/groupadd mysql
$ /sbin/useradd -g mysql mysql -d /dev/null -s /sbin/nologin

启动GreatSQL

执行下面的命令启动GreatSQL服务

$ systemctl start greatsql

检查服务是否已启动，以及进程状态：

$ systemctl status greatsql
● greatsql.service - GreatSQL Server
   Loaded: loaded (/usr/lib/systemd/system/greatsql.service; disabled; vendor preset: disabled)
   Active: active (running) since Wed 2022-07-06 13:42:35 CST; 2min 42s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 47924 ExecStartPre=/usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 47994 (mysqld)
   Status: "Server is operational"
    Tasks: 38 (limit: 149064)
   Memory: 444.5M
   CGroup: /system.slice/greatsql.service
           └─47994 /usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld

Jul 06 13:42:30 db170 systemd[1]: Starting GreatSQL Server...
Jul 06 13:42:35 db170 systemd[1]: Started GreatSQL Server.

$ ps -ef | grep mysqld
mysql      47994       1  2 13:42 ?        00:00:03 /usr/local/GreatSQL-8.0.25-16-Linux-glibc2.28-x86_64-minimal/bin/mysqld

$ ss -lntp | grep mysqld
LISTEN 0      70                 *:33060            *:*    users:(("mysqld",pid=47994,fd=23))
LISTEN 0      128                *:3306             *:*    users:(("mysqld",pid=47994,fd=26))

# 查看数据库文件
$ ls /var/lib/mysql
 auto.cnf        ca-key.pem        client-key.pem       ib_buffer_pool   ib_logfile1     mysql        mysql.sock.lock      public_key.pem    sys
 binlog.000001   ca.pem           '#ib_16384_0.dblwr'   ibdata1          ibtmp1          mysql.ibd    performance_schema   server-cert.pem   undo_001
 binlog.index    client-cert.pem  '#ib_16384_1.dblwr'   ib_logfile0     '#innodb_temp'   mysql.sock   private_key.pem      server-key.pem    undo_002

可以看到，GreatSQL服务已经正常启动了。

连接登入GreatSQL

采用minimal二进制包安装GreatSQL后，MySQL管理员root的初始化密码是空的，可以直接登入。

$ mysql -uroot
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.25-16

Copyright (c) 2021-2021 GreatDB Software Co., Ltd
Copyright (c) 2009-2021 Percona LLC and/or its affiliates
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
...
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> \s
--------------
mysql  Ver 8.0.25-16 for Linux on x86_64 (GreatSQL (GPL), Release 16, Revision 8bb0e5af297)

Connection id:        8
Current database:
Current user:        root@localhost
SSL:            Not in use
Current pager:        stdout
Using outfile:        ''
Using delimiter:    ;
Server version:        8.0.25-16
Protocol version:    10
Connection:        Localhost via UNIX socket
Server characterset:    utf8mb4
Db     characterset:    utf8mb4
Client characterset:    utf8mb4
Conn.  characterset:    utf8mb4
UNIX socket:        /var/lib/mysql/mysql.sock
Binary data as:        Hexadecimal
Uptime:            17 min 23 sec

Threads: 2  Questions: 12  Slow queries: 0  Opens: 120  Flush tables: 3  Open tables: 36  Queries per second avg: 0.011
--------------

mysql> show databases;  #<--查看数据库列表
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.01 sec)

mysql>

关闭/重启GreatSQL

执行下面的命令关闭GreatSQL数据库。

$ systemctl stop greatsql

执行下面的命令重启GreatSQL数据库。

$ systemctl restart greatsql

至此，二进制包方式安装GreatSQL数据库完成。

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