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GlusterFS+Keepalived实现存储高可用

时间：2022-11-22 14:25:32浏览次数：46  
标签：node 存储 Keepalived keepalived data GlusterFS ff test root

 

l 环境准备

1.服务器列表信息

Ip

Hostname

存储

系统

Vip

192.168.1.42

data-node-01

/dev/sdb1

Centos7

192.168.1.99

说明：用于对外提供存储服务

192.168.1.49

data-node-02

/dev/sdb1

Centos7

192.168.1.51

web-node-12

客户端

Centos7
2./etc/hosts配置

192.168.1.42 data-node-01

192.168.1.49  data-node-02

建立GlusterFS存储挂载点（data-node-01和data-node-02都要做此操作）

mkdir -p /glusterfs/storage1

echo "/dev/sdb1    /glusterfs/storage1    xfs    defaults    0 0" >> /etc/fstab

mount -a

l 安装GlusterFS服务端软件

3.安装gluster源，并安装glusterfs及相关软件包（data-node-01和data-node-02都要做此操作）

yum install centos-release-gluster -y

yum install glusterfs glusterfs-server glusterfs-cli glusterfs-geo-replication glusterfs-rdma -y

4.启动Glusterd服务（data-node-01和data-node-02都要做此操作）

systemctl start glusterd

5.在任意一个节点上添加信任节点（这里我们选择data-node-01）

gluster peer probe data-node-02

gluster peer probe data-node-01

 

gluster peer status

6.在任意一个节点上建立复制卷（这里我们选择data-node-01）

mkdir /glusterfs/storage1/rep_vol1      //分别在data-node-01和data-node-02上创建目录

gluster volume create rep_vol1 replica 2 data-node-01:/glusterfs/storage1/rep_vol1 data-node-02:/glusterfs/storage1/rep_vol1

7.启动复制卷

gluster volume start rep_vol1

8.查看复制卷状态

gluster volume status

gluster volume info

l 安装GlusterFS客户端软件（web-node-12上的操作）

9.客户端安装GlusterFS客户端软件

yum install glusterfs-fuse

10.客户端测试复制卷数据存储

for i in `seq -w 1 3`;do cp -rp /var/log/messages /data/test-$i;done

[root@localhost ~]# ls /data/

111  1.txt  2.txt  anaconda-ks.cfg  test-1  test-2  test-3

l 安装与配置Keepalived

11.安装Keepalived

yum -y install keepalived

12.启动keepalived服务

systemctl start keepalived

13.主节点keepalived配置

! Configuration File for keepalived

 

global_defs {

   notification_email {

       [email protected]

   }

   notification_email_from [email protected]

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id GFS_HA_MASTER

   vrrp_skip_check_adv_addr

}

 

vrrp_sync_group GFS_HA_GROUP {

    group {

        GFS_HA_1

    }

}

vrrp_script monitor_glusterfs_status {

    script "/etc/keepalived/scripts/monitor_glusterfs_status.sh"

    interval 5

    fall 3

    rise 1

    weight 20

}

vrrp_instance GFS_HA_1 {

    state BACKUP

    interface ens34

    virtual_router_id 107

    priority 100

    advert_int 2

    nopreempt

    authentication {

        auth_type PASS

        auth_pass 11112222

    }

 

    virtual_ipaddress {

        192.168.1.99/24  dev ens34

    }

 

    track_script {

        monitor_glusterfs_status

    }

 

    track_interface {

        ens34

    }

    notify_master "/etc/keepalived/scripts/keepalived_notify.sh master"

    notify_backup "/etc/keepalived/scripts/keepalived_notify.sh backup"

    notify_fault  "/etc/keepalived/scripts/keepalived_notify.sh fault"

    notify_stop   "/etc/keepalived/scripts/keepalived_notify.sh stop"

}

14.备节点keepalived配置

! Configuration File for keepalived

 

global_defs {

   notification_email {

       [email protected]

   }

   notification_email_from [email protected]

   smtp_server 127.0.0.1

   smtp_connect_timeout 30

   router_id GFS_HA_MASTER

   vrrp_skip_check_adv_addr

}

 

vrrp_sync_group GFS_HA_GROUP {

    group {

        GFS_HA_1

    }

}

 

vrrp_script monitor_glusterfs_status {

    script "/etc/keepalived/scripts/monitor_glusterfs_status.sh"

    interval 5

    fall 3

    rise 1

    weight 20

}

 

vrrp_instance GFS_HA_1 {

    state BACKUP

    interface ens34

    virtual_router_id 107

    priority 90

    advert_int 2

    authentication {

        auth_type PASS

        auth_pass 11112222

    }

 

    virtual_ipaddress {

        192.168.1.99/24 dev ens34

    }

 

    track_script {

        monitor_glusterfs_status

    }

 

    track_interface {

        ens34

    }

    notify_master "/etc/keepalived/scripts/keepalived_notify.sh master"

    notify_backup "/etc/keepalived/scripts/keepalived_notify.sh backup"

    notify_fault  "/etc/keepalived/scripts/keepalived_notify.sh fault"

    notify_stop   "/etc/keepalived/scripts/keepalived_notify.sh stop"

}

15.keepalived vrrp监控脚本

cat /etc/keepalived/scripts/monitor_glusterfs_status.sh

#!/bin/bash

#check glusterfsd and glusterd process

 

systemctl status glusterd &>/dev/null

if [ $? -eq 0 ];then

    systemctl status glusterfsd &>/dev/null

    if [ $? -eq 0 ];then

        exit 0

    else

        exit 2

    fi

else

    systemctl start glusterd &>/dev/null

    systemctl stop keepalived &>/dev/null && exit 1

fi

16.keepalived通知脚本(管理Glusterd服务)

cat /etc/keepalived/scripts/keepalived_notify.sh

#!/bin/bash

#keepalived script for glusterd

 

master() {

    systemctl status glusterd

    if [ $? -ne 0 ];then

        systemctl start glusterd

    else

        systemctl restart glusterd

    fi

}

 

backup() {

    systemctl status glusterd

    if [ $? -ne 0 ];then

        systemctl start glusterd

    fi

}

 

case $1 in

    master)

        master

    ;;

    backup)

        backup

    ;;

    fault)

        backup

    ;;

    stop)

        backup

        systemctl restart keepalived

    ;;

    *)

        echo $"Usage: $0 {master|backup|fault|stop}"

esac

l 测试Keepalived自动接管GlusterFS服务及存储的可用性

17.重新启动keepalived服务

systemctl restart keepalived.service

18.查看VIP接管情况

## 节点1上

[root@data-node-01 ~]# ip a show dev ens34

3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

    link/ether 00:0c:29:b2:b5:2a brd ff:ff:ff:ff:ff:ff

    inet 192.168.1.42/24 brd 192.168.1.255 cope global ens34

       valid_lft forever preferred_lft forever

    inet 192.168.1.99/24 scope global secondary ens34

       valid_lft forever preferred_lft forever

    inet6 fe80::ce9a:ee2e:7b6c:a6bb/64 scope link

       valid_lft forever preferred_lft forever

 

## 节点2上

[root@data-node-02 ~]# ip a show dev ens34

3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

    link/ether 00:0c:29:ba:42:cf brd ff:ff:ff:ff:ff:ff

    inet192.168.1.49/24 brd 192.168.1.255 scope global ens34

       valid_lft forever preferred_lft forever

    inet6 fe80::e23:ce0:65c3:ffbf/64 scope link

       valid_lft forever preferred_lft forever

19.客户端上使用VIP挂载GlusterFS提供的复制卷，并测试是否可用

mount -t glusterfs 192.168.1.99:rep_vol1 /data/

 

[root@localhost ~]# ls /data/

111  1.txt  2.txt  anaconda-ks.cfg  test  test-1  test-2  test-3

 

[root@localhost ~]# mkdir /data/test

[root@localhost ~]# echo 1111 >/data/test/1.txt

[root@localhost ~]# ls /data/test

1.txt

[root@localhost ~]# cat /data/test/1.txt

1111

20.查看GluserFS节点复制卷的使用情况

[root@data-node-02 ~]# ls /glusterfs/storage1/rep_vol1/

111  1.txt  2.txt  anaconda-ks.cfg  test  test-1  test-2  test-3

21.测试GlusterFS服务故障转移, 将主节点(节点1)关机或重启，查看GlusterFS服务与VIP是否转移至节点2

root@data-node-01 ~]# reboot

 

[root@data-node-02 ~]# ip a show dev ens34

3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

    link/ether 00:0c:29:ba:42:cf brd ff:ff:ff:ff:ff:ff

    inet 192.168.1.49/24 brd 192.168.1.255 scope global ens34

       valid_lft forever preferred_lft forever

    inet 192.168.1.99/24 cope global secondary ens34

       valid_lft forever preferred_lft forever

    inet6 fe80::e23:ce0:65c3:ffbf/64 scope link

       valid_lft forever preferred_lft forever

22.在客户端上测试存储是否仍然可用

[root@localhost ~]# df -Th

Filesystem             Type            Size  Used Avail Use% Mounted on

/dev/mapper/cl-root    xfs              40G  1.2G   39G   3% /

devtmpfs               devtmpfs        1.9G     0  1.9G   0% /dev

tmpfs                  tmpfs           1.9G     0  1.9G   0% /dev/shm

tmpfs                  tmpfs           1.9G  8.6M  1.9G   1% /run

tmpfs                  tmpfs           1.9G     0  1.9G   0% /sys/fs/cgroup

/dev/sda1              xfs            1014M  139M  876M  14% /boot

tmpfs                  tmpfs           378M     0  378M   0% /run/user/0

192.168.1.99:rep_vol1 fuse.glusterfs   10G  136M  9.9G   2% /data

 

[root@localhost ~]# ls /data/

111  1.txt  2.txt  anaconda-ks.cfg  test  test-1  test-2  test-3

 

[root@localhost ~]# touch /data/test.log

[root@localhost ~]# ls -l /data/

total 964

drwxr-xr-x 3 root root   4096 Aug 27 21:58 111

-rw-r--r-- 1 root root     10 Aug 27 21:23 1.txt

-rw-r--r-- 1 root root      6 Aug 27 21:36 2.txt

-rw------- 1 root root   2135 Aug 27 21:44 anaconda-ks.cfg

drwxr-xr-x 2 root root   4096 Aug 27 22:59 test

-rw------- 1 root root 324951 Aug 27 21:23 test-1

-rw------- 1 root root 324951 Aug 27 21:23 test-2

-rw------- 1 root root 324951 Aug 27 21:23 test-3

-rw-r--r-- 1 root root      0 Aug 27 23:05 test.log

23.查看节点1状态

[root@data-node-01 ~]# ip a show dev ens34

3: ens34: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000

    link/ether 00:0c:29:b2:b5:2a brd ff:ff:ff:ff:ff:ff

    inet 192.168.1.42/24 brd 192.168.1.255 scope global ens34

       valid_lft forever preferred_lft forever

    inet6 fe80::ce9a:ee2e:7b6c:a6bb/64 scope link

       valid_lft forever preferred_lft forever

24.重新启动keepalived服务

[root@data-node-01 ~]# systemctl start keepalived.service

 

说明总结：

由此可见当节点1故障恢复后，节点1的keepalived会进入到备用状态，同时继续监管GlusterFS服务，当节点2故障时会将服务、存储和VIP切换到节点1，继续对外提供存储服务，从而实现存储的高可用

标签：node,存储,Keepalived,keepalived,data,GlusterFS,ff,test,root
From： https://www.cnblogs.com/wutao-007/p/16914965.html

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