ClustrixDB安装配置

前提条件

在安装ClustrixDB之前，需要：

• ClustrixDB安装程序和许可证密钥。
• 运行CentOS或RHEL 7.4的服务器（本地或云中）。
• 具有root或sudo特权来安装ClustrixDB。在安装过程中，您可以配置用户以运行和管理数据库进程。

准备Linux操作系统

安装包

sudo yum install bzip2 xz wget screen ntp ntpdate vim htop mdadm

如果是RHEL，修改repo file:

sudo yum-config-manager --enable rhui-REGION-rhel-server-optional

ClustrixDB要求将数据库文件存储在基于本地SSD的文件系统上，该文件系统与包含操作系统的根卷不同。该卷应配置RAID-0以获得最佳性能，并包括所有用于ClustrixDB的SSD。为了实现冗余，默认情况下，ClustrixDB已经写入了两个数据副本，因此，如果发生节点故障或磁盘故障，数据仍然可用，并且不需要更高的RAID卷类型，因为这可能会影响性能。Clustrix建议使用/ data的默认安装点来简化安装。

确保ntpd服务开启，防火墙关闭

shell> sudo systemctl enable ntpd
shell> sudo systemctl start ntpd
shell> sudo systemctl disable firewalld
shell> sudo systemctl stop firewalld

核实SElinux关闭状态

shell> sestatus
SELinux status:  disabled

如果开启修改 /etc/sysconfig/selinux 中 SELINUX=disabled

然后执行：

shell> setenforce
SELinux status: disabled

配置用户

默认情况下，ClustrixDB安装程序将创建和配置这些用户。如果愿意，可以在安装之前创建这些用户，然后指示安装程序使用这些用户。

这些是与安装和操作ClustrixDB有关的Linux OS用户帐户：

Linux OS用户	描述	如何使用
root	root、	运行ClustrixDB软件的初始安装。可以通过授予另一个Linux用户的sudo特权间接运行安装。ClustrixDB的后续升级不需要root级权限。
clxd	ClustrixDB守护程序	ClustrixDB进程以clxd Linux用户身份运行。这是一个守护程序帐户，因此管理员不应使用该帐户登录Linux。一个例外是在执行ClustrixDB升级时，升级以clxd Linux用户身份执行。
clxm	ClustrixDB管理	管理员可以使用此Linux用户来使用ClustrixDB软件。通常将此用户配置为设置其环境，以方便使用ClustrixDB命令行工具。

安装ClustrixDB

在每个节点上安装ClustrixDB

以root用户或具有sudo特权的非root Linux用户身份登录到每个ClustrixDB节点。

下载ClustrixDB安装，然后解压缩并运行安装程序脚本：

shell> tar xvfj current_version .el7.tar.bz2
shell> cd current_version
shell> sudo ./clxnode_install.py

安装时候交互的填写内容：

0，内存计算为服务器内存的百分70%-75%

7， MySQL端口修改非3306

Option	Prompt	Description	Default Value
	Memory to use for ClustrixDB, in MiB	The default value is auto-detected based on the amount of memory available.	auto-detected
1	CPU cores to use for ClustrixDB	All is suggested and advised, however, this can be any number that is less than or equal to the number of cpu cores licensed for a node.	All
2	Database Storage Path	The path used for ClustrixDB data.	/data/clustrix
3	Storage space to pre-allocate to ClustrixDB	This is the amount of space that will initially be allocated for device1 storage.	auto-detected
4	Database Logs Path	This directory contains the ClustrixDB logs ( query.log , clustrix.log , debug.log , etc.).	/data/clustrix/log
5	MySQL Protocol Unix Socket	The location of the socket file that is necessary for communication to the database.	/var/lib/mysql/mysql.sock
6	Database Listen Address	The IP address on which ClustrixDB will accept client connections. This may be a specific IP or 0.0.0.0 to denote that any connection is allowable.	0.0.0.0
	Database MySQL TCP Port	The default TCP port used for accessing ClustrixDB.	3306
8	Private (Back-End) IP	The Private (Back-End) IP is the IP that will be used for internode communication. If your host has only one interface/IP, use that IP. For multihomed hosts in which one or more networks are meant for client connections while another is designated for an internal "back-end" network, the IP provided should be the latter. This is particularly important in cloud environments for which a front-end IP may have special routing, filtering, or metering rules associated.	IP of current node
9	Back End Network TCP/UDP Port	24378 is the port that ClustrixDB uses for back-end network communication using both TCP and UDP.	24378
10	Health Monitor TCP/UDP Port	Port used by the Clustrix Health Monitor	3581
11	OS User	The OS user used to run ClustrixDB. Clustrix recommends specifying a user other than root. See ClustrixDB Operating System Users  for more information.	clxd*
12	Management User	The OS user used to manage ClustrixDB. Clustrix recommends specifying a user other than root. See ClustrixDB Operating System Users  for more information.	clxm
13	Reduce TCP retry count	Default to reducing the retry count from 15 to 6	Yes
14	ClxDBI Install Path	The path where the ClxDBI will be installed.	/opt/clustrix/dbi
15	ClxDBI Listen Address	The address at which ClxDBI listens.	0.0.0.0
16	ClxDBI Listen TCP Port	The port at which which ClxDBI listens.	7888
17	ClxDBI Log Path	The path for logs generated by ClxDBI.	/data/clustrix/log/clxdbi
18	ClxDBI PID File Path	The location of the process identification number file for ClxDBI.	/var/run/clustrix
19	ClxGUI Install Path	The path where the ClxGUI will be installed.	/opt/clustrix/clxgui
20	ClxGUI Data Cache Path	The path for data cached by ClxGUI.	/var/cache/clustrix
21	ClxGUI Listen Address	The address at which ClxGUI listens.	0.0.0.0
22	ClxGUI Listen TCP Port	The TCP port used for HTTP communication by ClxGUI. If a user other than root is specified for the OS User, the default will be 8080.	8080
23	ClxGUI Log Path	The path for logs generated by ClxGUI.	/data/clustrix/log/clxgui
24	ClxGUI PID File Path	The location of the process identification number file for the ClxGUI.	/var/run/clustrix

防火墙开启相应需要的端口

Protocol	Port	Use	Reason
TCP	22	SSH	Administration and upgrade
TCP, UDP	2048	Control Port	ClustrixDB specialized administrative tool
TCP, UDP	2424	Nanny Port	nanny - ClustrixDB process manager
TCP	3306	SQL	Database communication
TCP	7888	clxdbi	Database interface for ClustrixGUI
TCP, UDP	24378 - 24410	Multiport	ClustrixDB internode communication