GlusterFS 安装与配置
GlusterFS是一个开源的分布式文件系统,于2011年被红帽收购.它具有高扩展性、高性能、高可用性、可横向扩展的弹性特点,无元数据服务器设计使glusterfs没有单点故障隐患，详细介绍请查看官网：www.gluster.org 。部署环境：
OS: CentOS> Server:
c1:192.168.242.132
c2:192.168.242.133
c3:192.168.242.134
c4:192.168.242.135
hosts：
192.168.242.132 c1
192.168.242.133 c2
192.168.242.134 c3
192.168.242.135 c4
具体操作：
c1/c2/c3/c4上执行
# wget -P /etc/yum.repos.d http://download.gluster.org/pub/gluster/glusterfs/LATEST/CentOS/glusterfs-epel.repo
# yum install -y glusterfs glusterfs-server glusterfs-fuse
# /etc/init.d/glusterd start
Starting glusterd: [ OK ]
# chkconfig glusterd on
c1上配置集群
# gluster peer probe c1
peer probe: success. Probe on localhost not needed
# gluster peer probe c2
peer probe: success.
# gluster peer probe c3
peer probe: success.
# gluster peer probe c4
peer probe: success.
如果c1在peer表中被识别为ip地址，可能后面集群过程中会出现通讯问题，
我们可以使用ip来进行修复:
# gluster peer status
Number of Peers: 3
Hostname: 192.168.242.132
Uuid: 6e8d6880-ec36-4331-a806-2e8fb4fda7be
State: Peer in Cluster (Connected)
Hostname: c2
Uuid: 9a722f50-911e-4181-823d-572296640486
State: Peer in Cluster (Connected)
Hostname: c4
Uuid: 1ee3588a-8a16-47ff-ba59-c0285a2a95bd
State: Peer in Cluster (Connected)
# gluster peer detach 192.168.242.132
peer detach: success
# gluster peer probe c1
peer probe: success.
# gluster peer status
Number of Peers: 3
Hostname: c2
Uuid: 9a722f50-911e-4181-823d-572296640486
State: Peer in Cluster (Connected)
Hostname: c4
Uuid: 1ee3588a-8a16-47ff-ba59-c0285a2a95bd
State: Peer in Cluster (Connected)
Hostname: c1
Uuid: 6e8d6880-ec36-4331-a806-2e8fb4fda7be
State: Peer in Cluster (Connected)
c1上创建集群磁盘
# gluster volume create datavolume1 replica 2 transport tcp c1:/usr/local/share/datavolume1 c2:/usr/local/share/datavolume1 c3:/usr/local/share/datavolume1 c4:/usr/local/share/datavolume1 force
volume create: datavolume1: success: please start the volume to access data
# gluster volume create datavolume2 replica 2 transport tcp c1:/usr/local/share/datavolume2 c2:/usr/local/share/datavolume2 c3:/usr/local/share/datavolume2 c4:/usr/local/share/datavolume2 force
volume create: datavolume2: success: please start the volume to access data
# gluster volume create datavolume3 replica 2 transport tcp c1:/usr/local/share/datavolume3 c2:/usr/local/share/datavolume3 c3:/usr/local/share/datavolume3 c4:/usr/local/share/datavolume3 force
volume create: datavolume3: success: please start the volume to access data
# gluster volume start datavolume1
volume start: datavolume1: success
# gluster volume start datavolume2
volume start: datavolume2: success
# gluster volume start datavolume3
volume start: datavolume3: success
# gluster volume info
Volume Name: datavolume1
Type: Distributed-Replicate
Volume> Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: c1:/usr/local/share/datavolume1
Brick2: c2:/usr/local/share/datavolume1
Brick3: c3:/usr/local/share/datavolume1
Brick4: c4:/usr/local/share/datavolume1
Volume Name: datavolume2
Type: Distributed-Replicate
Volume> Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: c1:/usr/local/share/datavolume2
Brick2: c2:/usr/local/share/datavolume2
Brick3: c3:/usr/local/share/datavolume2
Brick4: c4:/usr/local/share/datavolume2
Volume Name: datavolume3
Type: Distributed-Replicate
Volume> Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: c1:/usr/local/share/datavolume3
Brick2: c2:/usr/local/share/datavolume3
Brick3: c3:/usr/local/share/datavolume3
Brick4: c4:/usr/local/share/datavolume3
客户端环境部署
Centos OS 6.5 x64 并加入hosts
#wget -P /etc/yum.repos.d http://download.gluster.org/pub/gluster/glusterfs/LATEST/CentOS/glusterfs-epel.repo
#yum install -y glusterfs glusterfs-fuse
# mkdir -p /mnt/{datavolume1,datavolume2,datavolume3}
# mount -t glusterfs -o ro c1:datavolume1 /mnt/datavolume1/
# mount -t glusterfs -o ro c1:datavolume2 /mnt/datavolume2/
# mount -t glusterfs -o ro c1:datavolume3 /mnt/datavolume3/
me3
# df -h
Filesystem> /dev/mapper/VolGroup-lv_root
38G 840M 36G 3% /
tmpfs 242M 0 242M 0% /dev/shm
/dev/sda1 485M 32M 429M 7% /boot
c1:datavolume1 57G 2.4G 52G 5% /mnt/datavolume1
c1:datavolume2 57G 2.4G 52G 5% /mnt/datavolume2
c1:datavolume3 57G 2.4G 52G 5% /mnt/datavolume3
客户端测试
# umount /mnt/datavolume1/
# mount -t glusterfs c1:datavolume1 /mnt/datavolume1/
# touch /mnt/datavolume1/test.txt
# ls /mnt/datavolume1/test.txt
/mnt/datavolume1/test.txt
# ls -al /usr/local/share/datavolume1/
total 16
drwxr-xr-x. 3 root root 4096 May 15 03:50 .
drwxr-xr-x. 8 root root 4096 May 15 02:28 ..
drw——-. 6 root root 4096 May 15 03:50 .glusterfs
-rw-r–r–. 2 root root 0 May 20 2014 test.txt
# ls -al /usr/local/share/datavolume1/
total 16
drwxr-xr-x. 3 root root 4096 May 15 03:50 .
drwxr-xr-x. 8 root root 4096 May 15 02:28 ..
drw——-. 6 root root 4096 May 15 03:50 .glusterfs
-rw-r–r–. 2 root root 0 May 20 2014 test.txt
删除GlusterFS磁盘：
gluster volume stop datavolume1
gluster volume delete datavolume1
卸载GlusterFS磁盘：
gluster peer detach> 访问控制：
gluster volume set datavolume1 auth.allow 192.168.242.*,192.168.241.*
添加GlusterFS节点：
gluster peer probe c6
gluster peer probe c7
gluster volume add-brick datavolume1 c6:/usr/local/share/datavolume1 c7:/usr/local/share/datavolume1
迁移GlusterFS磁盘数据：
gluster volume remove-brick datavolume1 c1:/usr/local/share/datavolume1 c6:/usr/local/share/datavolume1 start
gluster volume remove-brick datavolume1 c1:/usr/local/share/datavolume1 c6:/usr/local/share/datavolume1 status
gluster volume remove-brick datavolume1 c1:/usr/local/share/datavolume1 c6:/usr/local/share/datavolume1 commit
数据重新分配：
gluster volume rebalance datavolume1 start
gluster volume rebalance datavolume1 status
gluster volume rebalance datavolume1 stop
修复GlusterFS磁盘数据（例如在c1宕机的情况下）：
gluster volume replace-brick datavolume1 c1:/usr/local/share/datavolume1 c6:/usr/local/share/datavolume1 commit -force
gluster volume heal datavolume1 full
转自：http://www.btschina.com/home/index.php/glusterfs-an-zhuang-yu-pei-zhi.html
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