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分布式文件系统Glusterfs
Gluster File System 是自由软件,主要由 Z RESEARCH 公司负责开发,十几名开发者,最近非常活跃。主要应用在集群系统中,具有很好的可扩展性。软件的结构设计良好,易于扩展和配置,通过各个模块的灵活搭配以得到针对性的解决方案。可解决以下问题:网络存储,联合存储(融合多个节点上的存储空间),冗余备份,大文件的负载均衡(分块)。
准备三台机器:
[root@node1 data]# cat /etc/redhat-release
CentOS release 6.8 (Final)
Node1: | 192.168.70.71 | server |
Node2: | 192.168.70.72 | server |
Node3: | 192.168.70.73 | client |
vi /etc/sysconfig/iptables:
-A INPUT -m state--state NEW -m tcp -p tcp --dport 24007:24008 -j ACCEPT
-A INPUT -m state --stateNEW -m tcp -p tcp --dport 49152:49162 -j ACCEPT
service iptables restart
Server1和server2下都执行以下操作:
安装方法1:
·
wget -l 1 -nd -nc -r -A.rpmhttp://download.gluster.org/pub/gluster/glusterfs/3.7/LATEST/CentOS/epel-6Server/x86_64/
wget -l 1 -nd -nc -r -A.rpmhttp://download.gluster.org/pub/gluster/glusterfs/3.7/LATEST/CentOS/epel-6Server/noarch/
wget -nc
http://download.gluster.org/pub/gluster/nfs-ganesha/2.3.0/EPEL.repo/epel-6Server/x86_64/nfs-ganesha-gluster-2.3.0-1.el6.x86_64.rpm
yum install * -y
方法二:(不同版本)
mkdir tools
cd /tools
wget -l 1 -nd -nc -r -A.rpm http://download.gluster.org/pub/gluster/glusterfs/3.5/3.5.5/RHEL/epel-6/x86_64/
yum install *.rpm
开启gluster服务
/etc/init.d/glusterd start
设置glusterFS服务开机启动
chkconfig glusterd on
[root@node1 /]# gluster peer probe 192.168.70.72
peer probe: success.
[root@node1 /]# gluster peer status
Number of Peers: 1
Hostname: 192.168.70.72
Uuid: fdc6c52d-8393-458a-bf02-c1ff60a0ac1b
State: Accepted peer request (Connected)
[root@node1 /]# gluster peer detach 192.168.70.72
peer detach: success
[root@node1 /]# gluster peer status
Number of Peers: 0
在node1和node2分别建立mkdir /data/gfs/
mkdir /data/gfs/
创建逻辑卷、
gluster volume create vg0 replica 2192.168.70.71:/data/gfs 192.168.70.72:/data/gfs force
volume create: vg0: success: please startthe volume to access data
查看逻辑卷信息
[root@node1 /]# gluster volume info
Volume Name: vg0
Type: Replicate
Volume ID: 6aff1f4f-8efe-4ed0-879e-95df483a86a2
Status: Created
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: 192.168.70.71:/data/gfs
Brick2: 192.168.70.72:/data/gfs
[root@node1 /]# gluster volume status
Volume vg0 is not started
开启逻辑卷
[root@node1 /]# gluster volume start vg0
volume start: vg0: success
yum -y install glusterfs glusterfs-fuse
mount -t glusterfs 192.168.70.71:/gv0/mnt/gfs
# 卷扩容(由于副本数设置为2,至少要添加2(4、6、8..)台机器)
gluster peer probe 192.168.70.74 # 加节点
gluster peer probe 192.168.70.75 # 加节点
gluster volume add-brick gv0 192.168.70.74:/data/glusterfs192.168.70.75:/data/glusterfs # 合并卷
收缩卷(收缩卷前gluster需要先移动数据到其他位置)
gluster volume remove-brick gv0 192.168.70.74:/data/glusterfs 192.168.70.75:/data/glusterfsstart # 开始迁移
gluster volume remove-brick gv0 192.168.70.74:/data/glusterfs192.168.70.74:/data/glusterfsstatus # 查看迁移状态
gluster volume remove-brick gv0 192.168.70.74:/data/glusterfs192.168.70.74:/data/glusterfs commit # 迁移完成后提交
# 迁移卷
gluster peer probe 192.168.70.75# 将192.168.70.76数据迁移到192.168.70.75先将192.168.70.75加入集群
gluster volume replace-brick gv0 192.168.70.76:/data/glusterfs192.168.70.75:/data/glusterfsstart # 开始迁移
gluster volume replace-brick gv0 192.168.70.76:/data/glusterfs192.168.70.75:/data/glusterfsstatus # 查看迁移状态
gluster volume replace-brick gv0 192.168.70.76:/data/glusterfs192.168.70.75:/data/glusterfscommit # 数据迁移完毕后提交
gluster volume replace-brick gv0 192.168.70.76:/data/glusterfs192.168.70.75:/data/glusterfs commit -force # 如果机器192.168.70.76出现故障已经不能运行,执行强制提交
gluster volume heal gv0full # 同步整个卷
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