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6.8. GlusterFS

http://www.gluster.org/

$ apt-cache search glusterfs
glusterfs-client - clustered file-system (client package)
glusterfs-dbg - GlusterFS debugging symbols
glusterfs-examples - example files for the glusterfs server and client
glusterfs-server - clustered file-system (server package)
libglusterfs-dev - GlusterFS development libraries and headers (development files)
libglusterfs0 - GlusterFS libraries and translator modules
    

6.8.1. glusterfs-server

$ sudo apt-get install glusterfs-server
$ sudo cp /etc/glusterfs/glusterfsd.vol /etc/glusterfs/glusterfsd.vol.orig
	    
$ cat /etc/glusterfs/glusterfsd.vol
### file: server-volume.vol.sample

#####################################
###  GlusterFS Server Volume File  ##
#####################################

#### CONFIG FILE RULES:
### "#" is comment character.
### - Config file is case sensitive
### - Options within a volume block can be in any order.
### - Spaces or tabs are used as delimitter within a line.
### - Multiple values to options will be : delimitted.
### - Each option should end within a line.
### - Missing or commented fields will assume default values.
### - Blank/commented lines are allowed.
### - Sub-volumes should already be defined above before referring.

### Export volume "brick" with the contents of "/home/export" directory.
volume brick
  type storage/posix                   # POSIX FS translator
  option directory /home/export        # Export this directory
end-volume

### Add network serving capability to above brick.
volume server
  type protocol/server
  option transport-type tcp
# option transport-type unix
# option transport-type ib-sdp
# option transport.socket.bind-address 192.168.1.10     # Default is to listen on all interfaces
# option transport.socket.listen-port 6996              # Default is 6996

# option transport-type ib-verbs
# option transport.ib-verbs.bind-address 192.168.1.10     # Default is to listen on all interfaces
# option transport.ib-verbs.listen-port 6996              # Default is 6996
# option transport.ib-verbs.work-request-send-size  131072
# option transport.ib-verbs.work-request-send-count 64
# option transport.ib-verbs.work-request-recv-size  131072
# option transport.ib-verbs.work-request-recv-count 64

# option client-volume-filename /etc/glusterfs/glusterfs-client.vol
  subvolumes brick
# NOTE: Access to any volume through protocol/server is denied by
# default. You need to explicitly grant access through # "auth"
# option.
  option auth.addr.brick.allow * # Allow access to "brick" volume
end-volume

	    
$ sudo mkdir /home/export
$ sudo /etc/init.d/glusterfs-server start
$ sudo /etc/init.d/glusterfs-server status
 * GlusterFS server is running.
	    

6.8.2. glusterfs-client

$ sudo apt-get install glusterfs-client
$ sudo cp /etc/glusterfs/glusterfs.vol /etc/glusterfs/glusterfs.vol.orig
        
# cat /etc/glusterfs/glusterfs.vol
### file: client-volume.vol.sample

#####################################
###  GlusterFS Client Volume File  ##
#####################################

#### CONFIG FILE RULES:
### "#" is comment character.
### - Config file is case sensitive
### - Options within a volume block can be in any order.
### - Spaces or tabs are used as delimitter within a line.
### - Each option should end within a line.
### - Missing or commented fields will assume default values.
### - Blank/commented lines are allowed.
### - Sub-volumes should already be defined above before referring.

### Add client feature and attach to remote subvolume
volume client
  type protocol/client
  option transport-type tcp
# option transport-type unix
# option transport-type ib-sdp
  option remote-host 192.168.80.1         # IP address of the remote brick
# option transport.socket.remote-port 6996              # default server port is 6996

# option transport-type ib-verbs
# option transport.ib-verbs.remote-port 6996              # default server port is 6996
# option transport.ib-verbs.work-request-send-size  1048576
# option transport.ib-verbs.work-request-send-count 16
# option transport.ib-verbs.work-request-recv-size  1048576
# option transport.ib-verbs.work-request-recv-count 16

# option transport-timeout 30          # seconds to wait for a reply
                                       # from server for each request
  option remote-subvolume brick        # name of the remote volume
end-volume

### Add readahead feature
#volume readahead
#  type performance/read-ahead
#  option page-size 1MB     # unit in bytes
#  option page-count 2       # cache per file  = (page-count x page-size)
#  subvolumes client
#end-volume

### Add IO-Cache feature
#volume iocache
#  type performance/io-cache
#  option page-size 256KB
#  option page-count 2
#  subvolumes readahead
#end-volume

### Add writeback feature
#volume writeback
#  type performance/write-behind
#  option aggregate-size 1MB
#  option window-size 2MB
#  option flush-behind off
#  subvolumes iocache
#end-volume

        
mkdir /mnt/glusterfs

glusterfs -f /etc/glusterfs/glusterfs.vol /mnt/glusterfs
or
mount -t glusterfs /etc/glusterfs/glusterfs.vol /mnt/glusterfs
        

fstab

/etc/glusterfs/glusterfs.vol  /mnt/glusterfs  glusterfs  defaults  0  0
        

6.8.3. Testing

client

touch /mnt/glusterfs/test1
touch /mnt/glusterfs/test2
	    

server

# ll /mnt/glusterfs
total 0
-rw-r--r-- 1 root root 0 Jun 16 11:57 test1
-rw-r--r-- 1 root root 0 Jun 16 11:57 test2
	    

6.8.4. RAID

http://www.gluster.com/community/documentation/index.php/GlusterFS_User_Guide

http://www.gluster.com/community/documentation/index.php/Storage_Server_Installation_and_Configuration

ref:http://www.howtoforge.com/high-availability-storage-cluster-with-glusterfs-on-ubuntu-p2

6.8.4.1. Mirror

例 6.2. Mirror

glusterfs-volgen --name store1 --raid 1 gluster1:/home/export gluster2:/home/export
            	

6.8.4.2. Strip

例 6.3. Strip

glusterfs-volgen --name store1 --raid 0 gluster1:/home/export gluster2:/home/export
		        

6.8.5. Filesystem Administration

		
# /etc/init.d/glusterd start

gluster peer probe gluster1
gluster peer probe gluster2

# gluster peer status
Number of Peers: 3

Hostname: gluster1
Uuid: 195c5908-750f-4051-accc-697ab72fa3f2
State: Probe Sent to Peer (Connected)

Hostname: gluster2
Uuid: 5f9887a9-da15-443f-aab1-5d9952247507
State: Probe Sent to Peer (Connected)

# gluster peer detach gluster3
Detach successful
        
		

To create a new volume

gluster volume create test-volume gluster1:/exp3 gluster2:/exp4
	    

6.8.6. CentOS 6.3

一,準備兩台伺服器
serverA(Client+Server)  202.231.13.6(內網172.16.0.5)cpu:4核Intel(R) Xeon(R) CPU E31220 @ 3.10GHz 內存:4G 硬碟:500G
serverB(Server)  211.14.14.14(內網172.16.0.3)cpu:4核Intel(R) Xeon(R) CPU E31220 @ 3.10GHz 內存:4G 硬碟:500G

二,安裝步驟
1,yum search gluster
2,yum install glusterfs-server
3,yum install fuse fuse-libs
4,cp /etc/glusterfs/glusterfsd.vol /etc/glusterfs/glusterfsd.vol.orig
5,mkdir /www/export

三,啟動
modprobe fuse
/etc/init.d/glusterd start

四,創建盤

伺服器有兩台,要先綁定在一起(假設使用ServerA做主伺服器)
ServerA# gluster peer probe 172.16.0.3
創建Volume,名為gluster-volume
分散式:ServerA# gluster volume create gluster-volume 172.16.0.5:/www/export 172.16.0.3:/www/export
鏡像式:ServerA# gluster volume create gluster-volume replica 2 172.16.0.5:/www/export 172.16.0.3:/www/export
條帶式:ServerA# gluster volume create gluster-volume stripe 2 172.16.0.5:/www/export 172.16.0.3:/www/export
啟動volume
ServerA# gluster volume start gluster-volume
查看當前所有volume狀態
ServerA# gluster volume info
若要使用Cache,則使用
ServerA# gluster volume set gluster-volume performance.cache-size 1GB

Gluster自動生成配置檔案,在/etc/glusterd/vols/gluster-volume/檔案夾中

在客戶端掛載gluster鏡像,客戶端直接使用Server端的配置檔案,不必創建自己的配置檔案了
Client# modprobe fuse
Client# /etc/init/glusterd start
Client# mkdir /mnt/local-volume
Client# mount.glusterfs 172.16.0.5:/gluster-volume /mnt/local-volume
Client# umount.glusterfs /mnt/local-volume


命令擴展:
gluster volume stop gluster-volume
gluster volume delete gluster-volume