标签：sed fail rpo 一个 dia inux amp 服务 style
luci: rhcs集群管理工具-主控端
ricci: rhcs集群管理工具-受控端
rgmanager: 高可用性服务管理
cman: 集群管理
gfs2: 集群文件系统
iscsi-target-utils: iscsi服务端
iscsi-initiator: iscsi发起端
|
主机名 |
IP |
software |
|
csnode01 |
192.168.2.10 |
Ricci,luci,rgmanager,cman |
|
csnode02 |
192.168.2.20 |
Ricci,rgmanager,cman |
|
csnode03 |
192.168.2.30 |
Ricci,rgmanager,cman |
|
csnode04 |
192.168.2.40 |
|
|
|
|
|
配置yum仓库，通过httpd实现：
在csnode04上：
挂载OS镜像
启动httpd服务：
#service httpd start
#chkconfig httpd on
#cd /var/www/html
[root@csnode04 html]# mkdir rhel/6/os/x86_64/ -pv
[root@csnode04 html]# mount /dev/sr0 rhel/6/os/x86_64/
mount: block device /dev/sr0 is write-protected, mounting read-only
在csnode01,cdnode02,cdnode03上配置以下：
#vim /etc/yum.repo.d/base.repo
[rhel-source]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://192.168.2.40/rhel/6/os/x86_64/
enabled=1
gpgcheck=0
[HighAvailability]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://192.168.2.40/rhel/6/os/x86_64/HighAvailability
enabled=1
gpgcheck=0
[LoadBalancer]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://192.168.2.40/rhel/6/os/x86_64/LoadBalancer
enabled=1
gpgcheck=0
[ResilientStorage]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://192.168.2.40/rhel/6/os/x86_64/ResilientStorage
enabled=1
gpgcheck=0
[ScalableFileSystem]
name=Red Hat Enterprise Linux $releasever - $basearch - Source
baseurl=http://192.168.2.40/rhel/6/os/x86_64/ScalableFileSystem
enabled=1
gpgcheck=0
4台服务器配置hosts名称解析：
#vim /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.2.10 csnode01.example.com csnode01
192.168.2.20 csnode02.example.com csnode02
192.168.2.30 csnode03.example.com csnode03
192.168.2.40 csnode04.example.com csnode04
禁用防火墙：
#service iptables stop
#chkconfig iptables off
关闭网络服务：
#service NetworkManager stop
#chkconfig NetworkManager off
关闭Selinux:
#sed -i ‘s/^SELINUX=.*/SELINUX=disabled/g‘ /etc/selinux/config
管理服务器安装luci:
[root@csnode01 yum.repos.d]# yum install luci -y
[root@csnode01 yum.repos.d]# service luci start
[root@csnode01 yum.repos.d]# chkconfig luci on
浏览器访问 http://10.0.0.80:8084 使用root帐号密码即可登陆管理界面
集群节点csnode01,csnode02,csnode03安装ricci rgmanager cman
[root@csnode01 yum.repos.d]#yum install ricci rgmanager cman -y
从红帽企业版 Linux 6.1 开始,您在任意节点中使用 ricci 推广更新的集群配置时要求输入密码。所以在前面两台主机安装完成ricci后需要修改ricci用户的密码，这个是后面节点设置的密码，并且要作时间同步；然后启动安装的服务
修改密码：
[root@csnode01 yum.repos.d]# echo 123456 | passwd --stdin ricci
永久启动服务：
[root@csnode01 yum.repos.d]# service ricci start;service rgmanager start ;service cman start
[root@csnode01 yum.repos.d]# chkconfig ricci on ; chkconfig rgmanager on ; chkconfig cman on
安装好RHCS，在启动cman的时候会提示如下错误：
Starting cman... xmlconfig cannot find/etc/cluster/cluster.conf [Faile]
是由于cluster.conf文件没有创建，可以安装luci图形界面配置。
配置Cluster:
Manag Clusters -> Create (其中password填写 123456 用户的密码，同时建议将”Reboot Nodes Before Joining Cluster“推荐勾选上)
添加故障转移域：FailOverDomains -> Add ，添加转移域
Prioritized:故障转移时选择优先级高
Restricted:服务只运行在指定的节点上
No Failback:故障节点恢复后，服务不用切换回去
给csnode04添加一块硬盘,将/dev/sdb(新添加的硬盘)共享给csnode01、csnode02和csnode03
安装服务端程序：
[root@csnode04 yum.repos.d]# yum install scsi-target-utils -y
创建分区：
[root@csnode04 yum.repos.d]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0xe747f71d.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won‘t be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It‘s strongly recommended to
switch off the mode (command ‘c‘) and change display units to
sectors (command ‘u‘).
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-20480, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-20480, default 20480):
Using default value 20480
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
让内核重读分区表：
[root@csnode04 yum.repos.d]# partx -a /dev/sdb
BLKPG: Device or resource busy
error adding partition 1
[root@csnode04 yum.repos.d]# partx -a /dev/sdb
BLKPG: Device or resource busy
error adding partition 1
配置服务端，添加配置文件：
[root@csnode04 yum.repos.d]# vim /etc/tgt/targets.conf
<target iqn.2019-11.com.example:server.target1>
backing-store /dev/sdb1
initiator-address 192.168.2.10
initiator-address 192.168.2.20
initiator-address 192.168.2.30
</target>
启动tgtd服务：
[root@csnode04 yum.repos.d]# service tgtd start
查看共享的设备信息：
[root@csnode04 yum.repos.d]# tgtadm -L iscsi -m target -o show
Target 1: iqn.2019-11.com.example:server.target1
System information:
Driver: iscsi
State: ready
I_T nexus information:
LUN information:
LUN: 0
Type: controller
SCSI ID: IET 00010000
SCSI SN: beaf10
Size: 0 MB, Block size: 1
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: null
Backing store path: None
Backing store flags:
LUN: 1
Type: disk
SCSI ID: IET 00010001
SCSI SN: beaf11
Size: 21475 MB, Block size: 512
Online: Yes
Removable media: No
Prevent removal: No
Readonly: No
Backing store type: rdwr
Backing store path: /dev/sdb1
Backing store flags:
Account information:
ACL information:
192.168.2.10
192.168.2.20
192.168.2.30
csnode01、csnode02和csnode03安装客户端程序：
[root@csnode01 yum.repos.d]# yum install iscsi-initiator-utils –y
启动服务：
[root@csnode01 yum.repos.d]# service iscsi start;service iscsid start
csnode01、csnode02和csnode03发现共享设备：
[root@csnode01 yum.repos.d]# iscsiadm -m discovery -t st -p 192.168.2.40
Starting iscsid: [ OK ]
192.168.2.40:3260,1 iqn.2019-11.com.example:server.target1
csnode01、csnode02和csnode03登入设备：
[root@csnode01 yum.repos.d]# iscsiadm -m node -T iqn.2019-11.com.example:server.target1 -p 192.168.2.40 -l
Logging in to [iface: default, target: iqn.2019-11.com.example:server.target1, portal: 192.168.2.40,3260] (multiple)
Login to [iface: default, target: iqn.2019-11.com.example:server.target1, portal: 192.168.2.40,3260] successful.
此时使用fdisk -l可以看到/dev/sdb设备
csnode01、csnode02和csnode03安装集群文件系统程序：
[root@csnode01 yum.repos.d]# yum install gfs2-utils –y
创建分区：
[root@csnode01 ~]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x20e43e5e.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won‘t be recoverable.
Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)
WARNING: DOS-compatible mode is deprecated. It‘s strongly recommended to
switch off the mode (command ‘c‘) and change display units to
sectors (command ‘u‘).
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-20479, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-20479, default 20479):
Using default value 20479
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
任意节点格式化集群文件系统：
[root@csnode01 ~]# mkfs.gfs2 -j 3 -p lock_dlm -t csCluster:sdb1 /dev/sdb1
This will destroy any data on /dev/sdb1.
It appears to contain: data
Are you sure you want to proceed? [y/n] y
Device: /dev/sdb1
Blocksize: 4096
Device Size 20.00 GB (5242620 blocks)
Filesystem Size: 20.00 GB (5242617 blocks)
Journals: 3
Resource Groups: 80
Locking Protocol: "lock_dlm"
Lock Table: "csCluster:sdb1"
UUID: 4b12a97a-c23c-998a-9ac3-8a579deb5391
csnode01、csnode02和csnode03安装mysql服务：
[root@csnode01 ~]# yum install mysql-server –y
挂载刚才的gfs2文件系统给mysql：
[root@csnode01 ~]# mount -t gfs2 /dev/sdb1 /var/lib/mysql/
测试：
Csnode01创建一个目录haha:
[root@csnode01 ~]# cd /var/lib/mysql/
[root@csnode01 mysql]# mkdir haha
[root@csnode01 mysql]# ls
Haha
Csnode02挂载:
[root@csnode02 ~]# mount -t gfs2 /dev/sdb1 /var/lib/mysql/
invalid device path "/dev/sdb1"
发现有问题：应让内核重读分区表：
[root@csnode02 ~]# partx -a /dev/sdb
[root@csnode02 ~]# mount -t gfs2 /dev/sdb1 /var/lib/mysql/
[root@csnode02 ~]# cd /var/lib/mysql/
[root@csnode02 mysql]# ls
Haha
在csnode02上也看到了刚才看到的haha目录
在csnode01上删除haha，在csnode02上看不到haha目录，实现同步操作。
此时gfs2配置完成,卸载csnode02上的/var/lib/mysql，在luci界面上配置gfs2资源，使其自动开启服务，并实现数据共享：
[root@csnode02 ~]# umount /var/lib/mysql/
其实就是将资源添加之后，新建资源组，谁拿到资源组谁就可以挂载共享磁盘，打开服务，获得数据库中数据。
新建资源组，按照IP，文件管理器，服务的顺序加入资源组中：
加入资源组，确认之后，重新刷新luci页面，查看效果。配置完成如下：
自动挂载到了csnode01,mysql服务自动开启：
[root@csnode01 ~]# cd /var/lib/mysql/
[root@csnode01 mysql]# ls
ibdata1 ib_logfile0 ib_logfile1 mysql mysql.sock test
[root@csnode01 mysql]# clustat
Cluster Status for csCluster @ Sun Dec 1 14:47:05 2019
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
csnode01.example.com 1 Online, Local, rgmanager
csnode02.example.com 2 Online, rgmanager
csnode03.example.com 3 Online, rgmanager
Service Name Owner (Last) State
------- ---- ----- ------ -----
service:mysqlha csnode01.example.com
切换到csnode02上：
查看csnode02上的相关服务：
[root@csnode01 ~]# clustat
Cluster Status for csCluster @ Sun Dec 1 14:49:49 2019
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
csnode01.example.com 1 Online, Local, rgmanager
csnode02.example.com 2 Online, rgmanager
csnode03.example.com 3 Online, rgmanager
Service Name Owner (Last) State
------- ---- ----- ------ -----
service:mysqlha csnode02.example.com starting
[root@csnode02 ~]# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/system-lv_root
36950724 2882816 32190916 9% /
tmpfs 1962828 31884 1930944 2% /dev/shm
/dev/sda1 198337 32970 155127 18% /boot
/dev/sdb1 20967856 418908 20548948 2% /var/lib/mysql
[root@csnode02 ~]# mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.1.66 Source distribution
Copyright (c) 2000, 2012, 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 |
| test |
+--------------------+
3 rows in set (0.00 sec)
mysql> create databases test1;
mysql> create database test1;
Query OK, 1 row affected (0.01 sec)
重启csnode02，发现服务重新启动在csnode01上：
止此，rhcs+gfs2+mysql搭建完成。
标签：sed fail rpo 一个 dia inux amp 服务 style
原文地址：https://www.cnblogs.com/mark-dq/p/11969523.html
