GFS distributed file system cluster projects

Clustered environment

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Volume Type

Volume Name	Volume Type	size of space	Brick
dis-volume	Distributed volume	40G	node1(/b1)、node2(/b1)
stripe-volume	Striped Volume	40G	node1(/c1)、node2(/c1)
rep-volume	Volume Copy	20G	node3(/b1)、node4(/b1)
dis-stripe	Distributed striped volume	40G	node1(/d1)、node2(/d1)、node3(/d1)、node4(/d1)
dis-rep	Distributed Replicated Volume	20G	node1(/e1)、node2(/e1)、node3(/e1)、node4(/e1)

Experimental preparation

1, to four servers to add four disks per server

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2, modify the server's name

They were revised to node1, node2, node3, node4

[root@localhost ~]#hostnamectl set-hostname node1
[root@localhost ~]# su

3, the disk is formatted on four servers, and mount

Here we use the script executes the mount

#进入opt目录
[root@node1 ~]# cd /opt
#磁盘格式化、挂载脚本
[root@node1 opt]# vim a.sh
#! /bin/bash
echo "the disks exist list:"
fdisk -l |grep '磁盘 /dev/sd[a-z]'
echo "=================================================="
PS3="chose which disk you want to create:"
select VAR in `ls /dev/sd*|grep -o 'sd[b-z]'|uniq` quit
do
    case $VAR in
    sda)
        fdisk -l /dev/sda
        break ;;
    sd[b-z])
        #create partitions
        echo "n
                p

                w"  | fdisk /dev/$VAR

        #make filesystem
        mkfs.xfs -i size=512 /dev/${VAR}"1" &> /dev/null
    #mount the system
        mkdir -p /data/${VAR}"1" &> /dev/null
        echo -e "/dev/${VAR}"1" /data/${VAR}"1" xfs defaults 0 0\n" >> /etc/fstab
        mount -a &> /dev/null
        break ;;
    quit)
        break;;
    *)
        echo "wrong disk,please check again";;
    esac
done
#给于脚本执行权限
[root@node1 opt]# chmod +x a.sh

The script scp pushed to three other servers

scp a.sh [email protected]:/opt
scp a.sh [email protected]:/opt
scp a.sh [email protected]:/opt

Execute scripts on four servers, and complete

This is just a sample

[root@node1 opt]# ./a.sh
the disks exist list:
==================================================
1) sdb
2) sdc
3) sdd
4) sde
5) quit
chose which disk you want to create:1      //选择要格式化的盘
Welcome to fdisk (util-linux 2.23.2).

Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.

Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0x37029e96.

Command (m for help): Partition type:
   p   primary (0 primary, 0 extended, 4 free)
   e   extended
Select (default p): Partition number (1-4, default 1): First sector (2048-41943039, default 2048): Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-41943039, default 41943039): Using default value 41943039
Partition 1 of type Linux and of size 20 GiB is set

Command (m for help): The partition table has been altered!

Calling ioctl() to re-read partition table.
Syncing disks.

View case respectively mounted on four servers

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4, set the hosts file

On the first modification node1

#在文件末尾添加
vim /etc/hosts
192.168.45.133 node1
192.168.45.130 node2
192.168.45.134 node3
192.168.45.136 node4

Scp file by the hosts pushed to other servers and clients

#将/etc/hosts文件推送给其他主机
[root@node1 opt]# scp /etc/hosts [email protected]:/etc/hosts
[email protected]'s password: 
hosts                                      100%  242    23.6KB/s   00:00    
[root@node1 opt]# scp /etc/hosts [email protected]:/etc/hosts
[email protected]'s password: 
hosts                                      100%  242   146.0KB/s   00:00    
[root@node1 opt]# scp /etc/hosts [email protected]:/etc/hosts
[email protected]'s password: 
hosts

View pushing the case on other servers
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Shut down all servers and client firewall

[root@node1 ~]# systemctl stop firewalld.service 
[root@node1 ~]# setenforce 0

Yum warehouse built on the client and server

#进入yum文件路径
[root@node1 ~]# cd /etc/yum.repos.d/
#创建一个空文件夹
[root@node1 yum.repos.d]# mkdir abc
#将CentOS-文件全部移到到abc下
[root@node1 yum.repos.d]# mv CentOS-* abc
#创建私有yum源
[root@node1 yum.repos.d]# vim GLFS.repo
[demo]
name=demo
baseurl=http://123.56.134.27/demo
gpgcheck=0
enable=1

[gfsrepo]
name=gfsrepo
baseurl=http://123.56.134.27/gfsrepo
gpgcheck=0
enable=1

#重新加载yum源
[root@node1 yum.repos.d]# yum list

Install the necessary software packages

[root@node1 yum.repos.d]# yum -y install glusterfs glusterfs-server glusterfs-fuse glusterfs-rdma

The same operation in the other three on stage

Start glusterd on four servers, and set to boot from the start

[root@node1 yum.repos.d]# systemctl start glusterd.service 
[root@node1 yum.repos.d]# systemctl enable glusterd.service

Adding node information

[root@node1 yum.repos.d]# gluster peer probe node2
peer probe: success. 
[root@node1 yum.repos.d]# gluster peer probe node3
peer probe: success. 
[root@node1 yum.repos.d]# gluster peer probe node4
peer probe: success.

View node information on other servers

[root@node1 yum.repos.d]# gluster peer status

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Creating a distributed volume

#创建分布式卷
[root@node1 yum.repos.d]# gluster volume create dis-vol node1:/data/sdb1 node2:/data/sdb1 force
#检查信息
[root@node1 yum.repos.d]# gluster volume info dis-vol
#查看分布式现有卷
[root@node1 yum.repos.d]# gluster volume list
#启动卷
[root@node1 yum.repos.d]# gluster volume start dis-vol

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Mounted on the client

#递归创建挂载点
[root@manager yum.repos.d]# mkdir -p /text/dis
#将刚才创建的卷挂载到刚才创建的挂载点下
[root@manager yum.repos.d]# mount.glusterfs node1:dis-vol /text/dis

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Create a striped volume

#创建卷
[root@node1 yum.repos.d]# gluster volume create stripe-vol stripe 2 node1:/data/sdc1 node2:/data/sdc1 force
#查看现有卷
[root@node1 yum.repos.d]# gluster volume list
dis-vol
stripe-vol
#启动条带卷
[root@node1 yum.repos.d]# gluster volume start stripe-vol 
volume start: stripe-vol: success

Client mount

#创建挂载点
[root@manager yum.repos.d]# mkdir /text/strip
#挂载条带卷
[root@manager yum.repos.d]# mount.glusterfs node1:/stripe-vol /text/strip/

Mount View case
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Create a copy volumes

#创建复制卷
[root@node1 yum.repos.d]# gluster volume create rep-vol replica 2 node3:/data/sdb1 node4:/data/sdb1 force
volume create: rep-vol: success: please start the volume to access data
#开启复制卷
[root@node1 yum.repos.d]# gluster volume start rep-vol 
volume start: rep-vol: success

In the client Guaai replicated volumes

[root@manager yum.repos.d]# mkdir /text/rep
[root@manager yum.repos.d]# mount.glusterfs node3:rep-vol /text/rep

Mount View
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Create a distributed strips

#创建分布式条带卷
[root@node1 yum.repos.d]# gluster volume create dis-stripe stripe 2 node1:/data/sdd1 node2:/data/sdd1 node3:/data/sdd1 node4:/data/sdd1 force
volume create: dis-stripe: success: please start the volume to access data
#启动分布式条带卷
[root@node1 yum.repos.d]# gluster volume start dis-stripe 
volume start: dis-stripe: success

Mounted on the client

[root@manager yum.repos.d]# mkdir /text/dis-strip
[root@manager yum.repos.d]# mount.glusterfs node4:dis-stripe /text/dis-strip/

Creating a distributed replicated volumes

#创建分布式复制卷
[root@node2 yum.repos.d]# gluster volume create dis-rep replica 2 node1:/data/sde1 node2:/data/sde1 node3:/data/sde1 node4:/data/sde1 force
volume create: dis-rep: success: please start the volume to access data
#开启复制卷
[root@node2 yum.repos.d]# gluster volume start dis-rep 
volume start: dis-rep: success
# 查看现有卷
[root@node2 yum.repos.d]# gluster volume list
dis-rep
dis-stripe
dis-vol
rep-vol
stripe-vol

Client mount

[root@manager yum.repos.d]# mkdir /text/dis-rep
[root@manager yum.repos.d]# mount.glusterfs node3:dis-rep /text/dis-rep/

View Mount
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------------------------ we completed the top to create and mount volumes -------------

Now we have to test volume

5 40M first create a file on the client

[root@manager yum.repos.d]# dd if=/dev/zero of=/demo1.log bs=1M count=40
40+0 records in
40+0 records out
41943040 bytes (42 MB) copied, 0.0175819 s, 2.4 GB/s
[root@manager yum.repos.d]# dd if=/dev/zero of=/demo2.log bs=1M count=40
40+0 records in
40+0 records out
41943040 bytes (42 MB) copied, 0.269746 s, 155 MB/s
[root@manager yum.repos.d]# dd if=/dev/zero of=/demo3.log bs=1M count=40
40+0 records in
40+0 records out
41943040 bytes (42 MB) copied, 0.34134 s, 123 MB/s
[root@manager yum.repos.d]# dd if=/dev/zero of=/demo4.log bs=1M count=40
40+0 records in
40+0 records out
41943040 bytes (42 MB) copied, 1.55335 s, 27.0 MB/s
[root@manager yum.repos.d]# dd if=/dev/zero of=/demo5.log bs=1M count=40
40+0 records in
40+0 records out
41943040 bytes (42 MB) copied, 1.47974 s, 28.3 MB/s

5 then copy the file to a different volume

[root@manager yum.repos.d]# cp /demo* /text/dis
[root@manager yum.repos.d]# cp /demo* /text/strip
[root@manager yum.repos.d]# cp /demo* /text/rep
[root@manager yum.repos.d]# cp /demo* /text/dis-strip
[root@manager yum.repos.d]# cp /demo* /text/dis-rep

View the contents of the volume

Check distributed volume

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View striped volume

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View replicated volumes

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Check distributed striped volume

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Check distributed replicated volumes

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Failure Test

Close observation server node2

[root@manager yum.repos.d]#  ls /text/
dis  dis-rep  dis-strip  rep  strip
[root@manager yum.repos.d]# ls /text/dis
demo1.log  demo2.log  demo3.log  demo4.log
[root@manager yum.repos.d]# ls /text/dis-rep
demo1.log  demo2.log  demo3.log  demo4.log  demo5.log
[root@manager yum.repos.d]# ls /text/dis-strip/
demo5.log
[root@manager yum.repos.d]# ls /text/rep/
demo1.log  demo2.log  demo3.log  demo4.log  demo5.log
[root@manager yum.repos.d]# ls /text/strip/
[root@manager yum.repos.d]#

The results indicate:

Distribution volume file is missing demo5.log
A striped volume can not access
Copy volume normal access
Distributed striped volume missing files
Distributed Replicated Volume normal access

Delete Volume

To delete a volume need to stop the volume, delete the volume when the volume group must be turned on

#停止卷
[root@manager yum.repos.d]# gluster volume delete dis-vol
#删除卷
[root@manager yum.repos.d]# gluster volume delete dis-vol

Access control

#仅拒绝
[root@manager yum.repos.d]# gluster volume set dis-vol auth.reject 192.168.45.133
#仅允许
[root@manager yum.repos.d]# gluster volume set dis-vol auth.allow 192.168.45.133