实时同步lsyncd

1 lsyncd

1.1 lsyncd 简介

Lsyncd使用文件系统事件接口（inotify或fsevents）来监视对本地文件和目录的更改。Lsyncd将这些事件整理几秒钟，然后生成一个或多个进程以将更改同步到远程文件系统。默认同步方法是rsync Lsyncd是一种轻量级的实时镜像解决方案。Lsyncd相对容易安装，不需要新的文件系统或块设备。Lysncd不会妨碍本地文件系统性能，可以通过配置文件实现细粒度的自定义。自定义操作配置甚至可以从头开始编写，从shell脚本到用Lua语言编写的代码。

1.2 环境准备

rsync服务端：默认就有rsync无需安装lsyncd客户端：安装lsyncd软件

在这里，备份服务器为服务端，存储服务器为客户端

[root@nfs ~]#yum install -y lsyncd

1.3 rsync配置文件

backup配置文件

[root@backup ~]#cat /etc/rsyncd.conf uid = rsync gid = rsync port = 873 fake super = yes use chroot = no max connections = 200 timeout = 300 pid file = /var/run/rsyncd.pid lock file = /var/run/rsync.lock log file = /var/log/rsyncd.log ignore errors read only = false list = false hosts allow = 172.16.1.0/24 auth users = rsync_backup secrets file = /etc/rsync.password [backup] comment = "backup dir by oldboy" path = /backup

1.4 创建虚拟用户rsync

id rsync #查看以下是否有rsync这个用户 useradd rsync -M -s /sbin/nologin #创建rsync虚拟用户

1.5 创建密码文件并修改访问权限为600

echo "rsync_backup:123456" >/etc/rsync.password chmod 600 /etc/rsync.password #只能root用户才能查看密码

1.6 创建备份目录/修改目录属主和属组信息

mkdir /backup chown rsync.rsync /backup

1.7 启动服务程序/重启服务程序

systemctl start rsyncd systemctl restart rsyncd systemctl enable rsyncd

1.8 lsyncd配置文件

lsyncd配置文件

root@nfs ~]#cat /etc/lsyncd.conf settings { logfile = "/var/log/lsyncd/lsyncd.log", statusFile = "/var/log/lsyncd/lsyncd.status", inotifyMode = "CloseWrite", maxProcesses = 8, } sync { default.rsync, source = "/data", target = "rsync_backup@172.16.1.41::backup", delete= true, exclude = { ".*" }, delay = 1, rsync = { binary = "/usr/bin/rsync", archive = true, compress = true, verbose = true, password_file = "/etc/rsync.password", _extra = {"--bwlimit=200"} } }

1.9 存储服务器创建备份的目录

mkdir /data

1.10 创建密码文件，并修改权限

echo "123456" >/etc/rsync.password #创建密码文件 chmod 600 /etc/rsync.password

1.11免交互式传输密码文件

rsync -avz /etc/passwd rsync_backup@172.16.1.41::backup --password-file=/etc/rsync.password

执行上述命令出现下图，则证明部署服务成功

1.12 存储服务器进行测试

[root@nfs data]#touch test.txt [root@nfs data]#ls test.txt ++++++++++++++++++++++++++++++ [root@backup backup]#ls test.txt

转载于:https://www.cnblogs.com/basa/p/11297415.html