《Gluster集群搭建-centos7.2环境》
（1）解压安装包：glusterfs-3.8-release.zip
（2）进入安装目录：
执行安装脚本
./install.sh
安装完成！
（3）关闭防火墙（所有节点上执行）：
[root@client ~]# service iptables status // 查看防火墙状态
[root@client ~]# service iptables stop // 简单关闭
（4）关闭SELinux（所有节点上执行）：
[root@client ~]# getenforce // 查看SELiunx的状态
Enforcing
[root@client ~]# setenforce 0 // 设置当前为关闭
[root@client ~]# getenforce // 查看一下状态
Permissive
[root@client ~]# vi /etc/selinux/config // 设置开机不启动
[root@client ~]# cat /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
# targeted - Targeted processes are protected,
# mls - Multi Level Security protection.
SELINUXTYPE=targeted
[root@client ~]#
（5）设置ip主机名映射文件：
[root@localhost ~]# vi /etc/hosts // 编辑hosts文件夹
将以下内容填写到配置文件中：
192.168.220.135 client
192.168.220.136 server01
192.168.220.137 server02
192.168.220.138 server03
192.168.220.139 server04
当然，这个是根据你自己的虚拟机IP地址确定的配置信息。
将hosts文件拷贝到其他机器中，记得输入yes和密码
[root@localhost ~]# scp /etc/hosts root@server01:/etc/hosts
The authenticity of host 'server01 (192.168.220.136)' can't be established.
RSA key fingerprint is 1b:f9:32:57:5a:df:9c:f5:58:e1:cd:1f:2c:9f:07:75.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'server01,192.168.220.136' (RSA) to the list of known hosts.
root@server01's password:
hosts 100% 282 0.3KB/s 00:00
[root@localhost ~]#
同理将/etc/hosts拷贝至其它节点：
scp /etc/hosts root@server02:/etc/hosts
scp /etc/hosts root@server03:/etc/hosts
scp /etc/hosts root@server04:/etc/hosts
（6）设置开机自启（每个节点上）：
启动Gluster服务
[root@localhost glusterfs-3.4.2]# /etc/init.d/glusterd status // 查看服务是否启动
glusterd is stopped
[root@localhost glusterfs-3.4.2]# /etc/init.d/glusterd start // 启动服务
Starting glusterd: [ OK ]
[root@localhost glusterfs-3.4.2]#
[root@localhost glusterfs-3.4.2]# chkconfig glusterd on // 设置服务开机自动启动
[root@localhost glusterfs-3.4.2]#
（7）加入集群节点（在server1上执行）
[root@server01 ~]# gluster peer probe server02
peer probe: success
[root@server01 ~]# gluster peer probe server03
peer probe: success
[root@server01 ~]# gluster peer probe server04
peer probe: success
（7.1）查看集群中加入的节点：
[root@server01 ~]# gluster peer status
Number of Peers: 3
Hostname: server02
Port: 24007
Uuid: e3b697dd-428d-4c15-85b5-0bbd3dba1ef6
State: Peer in Cluster (Connected)
Hostname: server03
Port: 24007
Uuid: 0d61b1c9-9e98-4fec-b9ef-4add193009f6
State: Peer in Cluster (Connected)
Hostname: server04
Port: 24007
Uuid: 57144cf3-2d3a-437d-9391-293390a85d9a
State: Peer in Cluster (Connected)
[root@server01 ~]#
显示全部连接成功！
（8） 创建一个分布式卷
首先在四台机器上创建一个能够存放文件系统的文件夹
[root@server01 ~]# mkdir /Data
[root@server02 ~]# mkdir /Data
[root@server03 ~]# mkdir /Data
[root@server04 ~]# mkdir /Data
[root@server01 ~]# gluster volume create dht server01:/Data/dht1 server02:/Data/dht2 server03:/Data/dht3 server04:/Data/dht4 force // 创建一个分布式卷dht
volume create: dht: success: please start the volume to access data
[root@server01 ~]# gluster volume start dht // 启动这个分布式卷
volume start: dht: success
[root@server01 ~]# gluster volume status dht // 查看这个卷的情况
Status of volume: dht
Gluster process Port Online Pid
------------------------------------------------------------------------------
Brick server01:/Data/dht1 49152 Y 1610
Brick server02:/Data/dht2 49152 Y 1554
Brick server03:/Data/dht3 49152 Y 1532
Brick server04:/Data/dht4 49152 Y 1549
NFS Server on localhost 2049 Y 1620
NFS Server on server02 2049 Y 1564
NFS Server on server03 2049 Y 1542
NFS Server on server04 2049 Y 1559
There are no active volume tasks
[root@server01 ~]#
（9） 挂载分布式卷（在任意节点上执行）
[root@server01 ~]# mount -t glusterfs server01:/dht /mnt/ // 挂在server01卷到server01的mnt路径下
[root@server01 ~]#
[root@server01 ~]# df –h // 查看磁盘大小
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
18G 1003M 16G 7% /
tmpfs 491M 0 491M 0% /dev/shm
/dev/sda1 477M 52M 400M 12% /boot
server01:/dht 69G 4.0G 62G 7% /mnt
[root@server01 ~]#
（10） 测试卷
[root@server01 mnt]# touch file{001..010} // 创建十个文件
[root@server01 mnt]# ls
file001 file002 file003 file004 file005 file006 file007 file008 file009 file010
[root@server01 mnt]#
在集群机器上查看文件分布情况：
[root@server01 Data]# cd dht1/
[root@server01 dht1]# ls
file002 file004 file005 file008 file009
[root@server01 dht1]#
[root@server02 Data]# cd dht2/
[root@server02 dht2]# ls
file010
[root@server02 dht2]#
[root@server03 Data]# cd dht3/
[root@server03 dht3]# ls
file003 file006
[root@server03 dht3]#
[root@server04 Data]# cd dht4/
[root@server04 dht4]# ls
file001 file007
[root@server04 dht4]#
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