CentOS 7 搭建GlusterFS

 CentOS 7 搭建GlusterFS

实验需求：

    4台机器安装GlusterFS组成一个集群

    客户端把docker registry存储到文件系统里

    4个节点的硬盘空间不整合成一个硬盘空间，要求每个节点都存储一份，保证数据安全

    环境规划

    -----------------------------------------------------

    server

    -----------------------------------------------------

    node1:192.168.56.11  主机名:glusterfs1

    -----------------------------------------------------

    node2:192.168.56.12  主机名:glusterfs2

    -----------------------------------------------------

    node3:192.168.56.13  主机名:glusterfs3

    -----------------------------------------------------

    node4:192.168.56.14  主机名:glusterfs4

    -----------------------------------------------------

    client

    -----------------------------------------------------

    192.168.56.20         主机名:client

    -----------------------------------------------------

    OS: BCLinux release 7.2 (Mars)

实验前准备：

所有主机关闭防火墙，SElinux修改hosts文件，能够互相解析

192.168.56.11  glusterfs1

192.168.56.12  glusterfs2

192.168.56.13  glusterfs3

192.168.56.14  glusterfs4

192.168.56.20  client

    。SSH互信（最好选择主机名）

    -->ssh-keygen -t rsa

    -->ssh-copy-id -i /root/.ssh/id_rsa.pub root@glusterfs1

    -->ssh-copy-id -i /root/.ssh/id_rsa.pub root@glusterfs2

    -->ssh-copy-id -i /root/.ssh/id_rsa.pub root@glusterfs3

    -->ssh-copy-id -i /root/.ssh/id_rsa.pub root@glusterfs4

    -->ssh-copy-id -i /root/.ssh/id_rsa.pub root@client

一、安装

    服务端

    1.在glusterfs {1-4}节点上安装GlusrerFS软件包

    。Glusterfs下载地址：

    http://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-3.7.17-1.el7.x86_64.rpm                        

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-api-3.7.17-1.el7.x86_64.rpm                    

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-cli-3.7.17-1.el7.x86_64.rpm                    

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-client-xlators-3.7.17-1.el7.x86_64.rpm         

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-debuginfo-3.7.17-1.el7.x86_64.rpm              

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-fuse-3.7.17-1.el7.x86_64.rpm                   

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-geo-replication-3.7.17-1.el7.x86_64.rpm        

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-libs-3.7.17-1.el7.x86_64.rpm                   

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-rdma-3.7.17-1.el7.x86_64.rpm                   

wget https://download.gluster.org/pub/gluster/glusterfs/3.7/3.7.17/CentOS/epel-7.2/x86_64/glusterfs-server-3.7.17-1.el7.x86_64.rpm                 

    安装：

    -->yum install libibverbs librdmacm -y

    -->wget http://dl.fedoraproject.org/pub/epel/6/x86_64//userspace-rcu-0.7.7-1.el6.x86_64.rpm

    -->rpm -ivh userspace-rcu-0.7.7-1.el6.x86_64.rpm

    -->yum localinstall *.rpm -y

----------------------------------------------------------------------------------------------

报错：

    需要：liburcu-bp.so.1()(64bit)

错误：依赖检测失败：

libibverbs.so.1()(64bit) 被 glusterfs-rdma-3.7.17-1.el7.x86_64 需要

libibverbs.so.1(IBVERBS_1.0)(64bit) 被 glusterfs-rdma-3.7.17-1.el7.x86_64 需要

libibverbs.so.1(IBVERBS_1.1)(64bit) 被 glusterfs-rdma-3.7.17-1.el7.x86_64 需要

librdmacm.so.1()(64bit) 被 glusterfs-rdma-3.7.17-1.el7.x86_64 需要

librdmacm.so.1(RDMACM_1.0)(64bit) 被 glusterfs-rdma-3.7.17-1.el7.x86_64 需要

liburcu-bp.so.1()(64bit) 被 glusterfs-server-3.7.17-1.el7.x86_64 需要

liburcu-cds.so.1()(64bit) 被 glusterfs-server-3.7.17-1.el7.x86_64 需要

解决方法：

    -->yum install libibverbs librdmacm -y

    -->wget http://dl.fedoraproject.org/pub/epel/6/x86_64//userspace-rcu-0.7.7-1.el6.x86_64.rpm

    -->rpm -ivh userspace-rcu-0.7.7-1.el6.x86_64.rpm

----------------------------------------------------------------------------------------------

    3.userspace-rcu下载地址：

    -->wget http://dl.fedoraproject.org/pub/epel/7/x86_64/u/userspace-rcu-0.7.16-1.el7.x86_64.rpm

    -->rpm -ivh serspace-rcu-0.7.16-1.el7.x86_64.rpm

    安装：

    -->yum localinstall *.rpm

    。查看安装的版本

    -->glusterfs -V

glusterfs 3.7.17 built on Nov  3 2016 14:29:48

Repository revision: git://git.gluster.com/glusterfs.git

Copyright (c) 2006-2013 Red Hat, Inc.

GlusterFS comes with ABSOLUTELY NO WARRANTY.

It is licensed to you under your choice of the GNU Lesser

General Public License, version 3 or any later version (LGPLv3

or later), or the GNU General Public License, version 2 (GPLv2),

in all cases as published by the Free Software Foundation.

    。启动glusterfs服务

    -->systemctl enable glusterd.service 

Created symlink from /etc/systemd/system/multi-user.target.wants/glusterd.service to /usr/lib/systemd/system/glusterd.service.

    -->systemctl start gluterd.service 

    -->systemctl status glusterd.service

● glusterd.service - GlusterFS, a clustered file-system server

   Loaded: loaded (/usr/lib/systemd/system/glusterd.service; enabled; vendor preset: disabled)

   Active: active (running) since Sun 2017-07-09 16:20:51 CST; 30s ago

  Process: 4684 ExecStart=/usr/sbin/glusterd -p /var/run/glusterd.pid --log-level $LOG_LEVEL $GLUSTERD_OPTIONS (code=exited, status=0/SUCCESS)

 Main PID: 4685 (glusterd)

   CGroup: /system.slice/glusterd.service

           └─4685 /usr/sbin/glusterd -p /var/run/glusterd.pid --log-level INFO

Jul 09 16:20:48 glusterfs1 systemd[1]: Starting GlusterFS, a clustered file-system server...

Jul 09 16:20:51 glusterfs1 systemd[1]: Started GlusterFS, a clustered file-system server.

    2.在glusterfs1节点上配置整个GlusterFS集群，把各个节点加入到集群

    -->gluster peer probe glusterfs1

peer probe: success. Probe on localhost not needed

    -->gluster peer probe glusterfs2

peer probe: success. 

    -->gluster peer probe glusterfs3

peer probe: success. 

    -->gluster peer probe glusterfs4

peer probe: success. 

    3.查看节点状态

    -->gluster peer status

Number of Peers: 3

Hostname: glusterfs2

Uuid: 9149c992-e86c-436d-8da9-b2a7245289cb

State: Peer in Cluster (Connected)

Hostname: glusterfs3

Uuid: dcbe562d-5bbd-4ee8-8855-c48428bba7ef

State: Peer in Cluster (Connected)

Hostname: glusterfs4

Uuid: 677514f3-7c3c-4b8e-b93d-db3941485166

State: Peer in Cluster (Connected)

    4.在glusterfs{1-4}上创建数据存储目录

    -->mkdir -p  /usr/local/share/models

    5.在glusterfs1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 glusterfs1:/usr/local/share/models glusterfs2:/usr/local/share/models glusterfs3:/usr/local/share/models glusterfs4:/usr/local/share/models force

volume create: models: success: please start the volume to access data

    6.启动

    -->gluster volume start models

volume start: models: success

----------------------------------------------------------------------------

客户端

    1.部署GlusterFS客户端并mount GlusterFS文件系统

    -->mkdir /usr/local/src/rpm

    方法同服务器端（下载rpm安装)

    -->yum install libibverbs librdmacm -y

    -->wget http://dl.fedoraproject.org/pub/epel/6/x86_64//userspace-rcu-0.7.7-1.el6.x86_64.rpm

    -->rpm -ivh userspace-rcu-0.7.7-1.el6.x86_64.rpm

    -->yum localinstall *.rpm -y

    最好按下面方法安装客户端包

    -->rpm -ivh glusterfs-client-xlators-3.7.17-1.el7.x86_64.rpm glusterfs-fuse-3.7.17-1.el7.x86_64.rpm 

    -->mkdir -p /mnt/models

    -->mount -t glusterfs -o ro glusterfs1:models /mnt/models/

 

    2.查看效果

    -->df -h

df -hT

Filesystem        Type            Size  Used Avail Use% Mounted on

/dev/sda2         ext4             50G  1.5G   46G   4% /

devtmpfs          devtmpfs        904M     0  904M   0% /dev

tmpfs             tmpfs           913M     0  913M   0% /dev/shm

tmpfs             tmpfs           913M  8.8M  904M   1% /run

tmpfs             tmpfs           913M     0  913M   0% /sys/fs/cgroup

/dev/sda6         ext4             35G  4.7G   29G  15% /var

/dev/sda3         ext4            9.8G   37M  9.2G   1% /home

/dev/sda1         ext4            477M   94M  354M  21% /boot

tmpfs             tmpfs           183M     0  183M   0% /run/user/0

glusterfs1:models fuse.glusterfs   50G  1.5G   46G   4% /mnt/models

    其他操作命令

    。删除GlusterFS磁盘

    -->gluster volume stop  models  先停止

    -->gluster volume delete models  再删除

    。卸载GlusterFS磁盘

    -->gluster peer detach glusterfs4

    。ACL访问控制

    -->gluster volume set models auth.allow 192.168.56.*,10.0.1.*

volume set: success

    。添加GlusterFS节点

    -->gluster peer probe sc2-log5

    -->gluster peer probe sc2-log6

    -->gluster volume add-brick models sc2-log5:/data/gluster sc2-log6:/data/gluster

    。迁移GlusterFS数据

    -->gluster volume remove-brick models sc2-log1:/usr/local/share/models sc2-log5:/usr/local/share/models start

    -->gluster volume remove-brick models sc2-log1:/usr/local/share/models sc2-log5:/usr/local/share/models status

    -->gluster volume remove-brick models sc2-log1:/usr/local/share/models sc2-log5:/usr/local/share/models commit

    。修复GlusterFS数据(在节点1宕机的情况下)

    -->gluster volume replace-brick models sc2-log1:/usr/local/share/models sc2-log5:/usr/local/share/models commit -force

    -->gluster volume heal models full