CentOS 7 部署inotify实时监控（NFS服务器上部署，rsync服务器测试）

Posted 2020-10-27

1.简介

1.1inotify

  一个 Linux 内核特性，它监控文件系统，并且及时向专门的应用程序发出相关的事件警告，比如删除、读、写和卸载操作等。

2.环境准备

[[email protected] ~]# cat /etc/redhat-release 

CentOS Linux release 7.2.1511 (Core) 

[[email protected] ~]# uname -r

3.10.0-327.el7.x86_64

[[email protected] ~]# getenforce 

Disabled

[[email protected] ~]# systemctl status firewalld.service 

● firewalld.service - firewalld - dynamic firewall daemon

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

   Active: inactive (dead)

[[email protected] ~]# ifconfig

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        inet 10.0.0.31  netmask 255.255.255.0  broadcast 10.0.0.255

        inet6 fe80::20c:29ff:fe7a:66a4  prefixlen 64  scopeid 0x20<link>

        ether 00:0c:29:7a:66:a4  txqueuelen 1000  (Ethernet)

        RX packets 1195  bytes 283633 (276.9 KiB)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 198  bytes 24332 (23.7 KiB)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500

        inet 172.16.1.31  netmask 255.255.255.0  broadcast 172.16.1.255

        inet6 fe80::20c:29ff:fe7a:66ae  prefixlen 64  scopeid 0x20<link>

        ether 00:0c:29:7a:66:ae  txqueuelen 1000  (Ethernet)

        RX packets 0  bytes 0 (0.0 B)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 10  bytes 744 (744.0 B)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536

        inet 127.0.0.1  netmask 255.0.0.0

        inet6 ::1  prefixlen 128  scopeid 0x10<host>

        loop  txqueuelen 0  (Local Loopback)

        RX packets 0  bytes 0 (0.0 B)

        RX errors 0  dropped 0  overruns 0  frame 0

        TX packets 0  bytes 0 (0.0 B)

        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

3.NFS服务器部署inotify服务

3.1安装inotify

[[email protected] ~]# yum install -y inotify-tools

3.2编写实时同步脚本

[[email protected] ~]# cat /server/scripts/inotify.sh

#!bin/bash

inotifywait -mrq --format "%w%f" -e create,close_write,delete,moved_to /data/|\

while read zy

do

rsync -az /data/ --delete [email protected]::backup --password-file=/etc/rsync.password

done

4.测试

4.1运行脚本

[[email protected] ~]# sh /server/scripts/inotify.sh

4.2在NFS服务器的/data目录创建测试文档

[[email protected] data]# touch test.txt

[[email protected] data]# ls

test.txt

4.3rsync服务器的/backup目录查看

[[email protected] ~]# ls /backup/

test.txt