opo 发表于 2019-2-1 12:06:17

CentOS7下分布式系统GlusterFS安装配置

  一、主机规划
  操作系统版本为CentOS 7.2.1511
  node1:172.17.0.1 gfs1
  node2:172.17.0.2 gfs2
  node3:172.17.0.3 gfs3
  node4:172.17.0.4 gfs
  client:172.17.0.5
  

  二、安装:
  1.在node1-4上安装glusterfs-server
  yum install -y centos-release-gluster38
  yum install -y glusterfs glusterfs-server glusterfs-fuse
  

  设置开机自启动并启动
  systemctl enable glusterd.service
  systemctl start glusterd.service
  

  2.在gfs1-gfs4节点上配置整个GlusterFS集群,把各个节点加入到集群
  vim /etc/hosts
  127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
  ::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
  172.17.0.1gfs1
  172.17.0.2gfs2
  172.17.0.3gfs3
  172.17.0.4gfs4
  

  # gluster peer probe gfs1
  # gluster peer probe gfs2
  # gluster peer probe gfs3
  # gluster peer probe gfs4
  

  3.查看节点状态
  #gluster peer status
  

  4.在gfs{1-4}上创建数据存储目录
  # mkdir -p/usr/local/share/models
  

  5.在gfs1上创建GlusterFS磁盘
  注意:
  加上replica 4就是4个节点中,每个节点都要把数据存储一次,就是一个数据存储4份,每个节点一份
  如果不加replica 4,就是4个节点的磁盘空间整合成一个硬盘,
  #gluster volume create models replica 4 gfs1:/usr/local/share/models gfs2:/usr/local/share/models gfs3:/usr/local/share/models gfs4:/usr/local/share/models force
  

  6.启动
  # gluster volume start models
  

  客户端
  1.部署GlusterFS客户端并mount GlusterFS文件系统
  # yum install -y centos-release-gluster38
  # yum install -y glusterfs glusterfs-fuse
  # mkdir -p /mnt/models
  # mount -t glusterfs -o ro gfs1:models /mnt/models/
  

  2.查看效果
  # df -h
  

  3.观察分布式文件系统的效果
  umount /mnt/models
  mount -t glusterfs -o rw gfs1:models /mnt/models/
  # cd /mnt/models/
  # for i in `seq -w 10`; do mkdir $i ; done
  # for i in `seq -w 10`; do mkdir $i ; done
  # ll
  total 40
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 01
  drwxr-xr-x 2 root root 4096 Feb 14 21:59 02
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 03
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 04
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 05
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 06
  drwxr-xr-x 2 root root 4096 Feb 14 21:59 07
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 08
  drwxr-xr-x 2 root root 4096 Feb 14 21:56 09
  drwxr-xr-x 2 root root 4096 Feb 14 21:59 10
  

  分别在4台Server上查看新建的文件夹同步情况
  # ls /usr/local/share/models/ -l
  total 0
  drwxr-xr-x 2 root root 6 Feb 14 21:56 01
  drwxr-xr-x 2 root root 6 Feb 14 21:59 02
  drwxr-xr-x 2 root root 6 Feb 14 21:56 03
  drwxr-xr-x 2 root root 6 Feb 14 21:56 04
  drwxr-xr-x 2 root root 6 Feb 14 21:56 05
  drwxr-xr-x 2 root root 6 Feb 14 21:56 06
  drwxr-xr-x 2 root root 6 Feb 14 21:59 07
  drwxr-xr-x 2 root root 6 Feb 14 21:56 08
  drwxr-xr-x 2 root root 6 Feb 14 21:56 09
  drwxr-xr-x 2 root root 6 Feb 14 21:59 10
  

  可以看到4台服务器都同步过来了。
  

  当单台Server出现故障,比如服务器断开连接的情况,创建一个文件需要比较长的时间。
  但是当Server重新连上之后,文件可以及时的同步过来。
  




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