inotify+rsync数据的实时同步

# grep -i inotify /boot/config-3.10.0-1062.9.1.el7.x86_64 
CONFIG_INOTIFY_USER=y

# ll /proc/sys/fs/inotify/
total 0
-rw-r--r-- 1 root root 0 Jun 11 09:26 max_queued_events
-rw-r--r-- 1 root root 0 Jun 11 09:26 max_user_instances
-rw-r--r-- 1 root root 0 May 12 10:53 max_user_watches

#yum install inotify-tools        #基于epel源

-m, --monitor 始终保持事件监听

 -d, --daemon 以守护进程方式执行，和-m相似，配合-o使用

-r, --recursive 递归监控目录数据信息变化

-q, --quiet 输出少量事件信息

--exclude <pattern> 指定排除文件或目录，使用扩展的正则表达式匹配的模

式实现

--excludei <pattern> 和exclude相似，不区分大小写

 -o, --outfile <file>打印事件到文件中，相当于标准正确输出

 -s, --syslogOutput 发送错误到syslog相当于标准错误输出

 --timefmt <fmt> 指定时间输出格式

        --timefmt <fmt>时间格式，参考 man 3 strftime

        %Y 年份信息，包含世纪信息

        %y 年份信息，不包括世纪信息

        %m 显示月份，范围 01-12

        %d 每月的第几天，范围是 01-31

        %H 小时信息，使用 24小时制，范围 00-23

        %M 分钟，范围 00-59

        示例：

        --timefmt "%Y-%m-%d %H:%M"

 --format <fmt> 指定的输出格式；即实际监控输出内容

-e 指定监听指定的事件，如果省略，表示所有事件都进行监听

         示例： -e create,delete,moved_to,close_write, attrib
Events: 事件
  access        file or directory contents were read 文件或目录被(访问)读取r
  modify        file or directory contents were written 文件或目录被写入w
  attrib        file or directory attributes changed 文件或目录属性变更【理由：chmod更改属性】
  close_write   file or directory closed, after being opened in writeable mode 文件或目录被写关闭【理由：文件内容被更改】
  close_nowrite file or directory closed, after being opened in read-only mode 文件或目录以只读方式打开后关闭 
  close         file or directory closed, regardless of read/write mode 文件或目录被用编辑器(不管是读或写)关闭
  open          file or directory opened 文件或目录被用编辑器打开
  moved_to      file or directory moved to watched directory 文件或目录被移动进来【理由：mv目录内重命名】
  moved_from    file or directory moved from watched directory 文件或目录被移动出去
  move          file or directory moved to or from watched directory 文件或目录不管是移出或移进
  create        file or directory created within watched directory 文件或目录被创建【理由：mkdir创建目录】
  delete        file or directory deleted within watched directory 文件或目录被删除【理由：rm删除】
  delete_self   file or directory was deleted 文件或目录自删除
  unmount       file system containing file or directory unmounted 文件系统取消挂载

inotifywait -mrq /data -o /root/inotify.log --timefmt "%F %H:%M" --format "%T %w%f event: %;e" -e create,delete,moved_to,close_write,attrib

uid = root
gid = root
use chroot = no
max connections = 0
ignore errors
exclude = lost+found/
log file = /var/log/rsyncd.log
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsyncd.lock
reverse lookup = no
hosts allow = 192.168.12.0/24
[backup]
path = /backup/
comment = backup
read only = no
auth users = rsyncuser
secrets file = /etc/rsync.pass

#echo "rsyncuser:123456" > /etc/rsync.pass
#chmod 600 /etc/rsync.pass

#mkdir /backup
#chmod 600 /backup/

#rsync --daemon     可加入/etc/rc.d/rc.local实现开机启动
#systemctl start rsyncd

#yum install inotify-tools
#mkdir /data/www
#ls /data/www/

shell#echo "123456" > /etc/rsync.pass
#chmod 600 /etc/rsync.pass

#rsync -avz --password-file=/etc/rsync.pass /data/www/ rsyncuser@192.168.12.57::backup
57::backup
sending lncremental file list
./
f1.txt
f2.txt

sent 165 bytes received 57 bytes 444.00 bytes/sec
total size is 0 speedup is 0.00

#!/bin/bash
SRC='/data/www/'
DEST='rsyncuser@192.168.12.57::backup'
inotifywait -mrq --timefmt '%Y-%m-%d %H:%M' --format '%T %w %f' -e create,delete,moved_to,close_write,attrib ${SRC} |while read DATE TIME DIR FILE;do
FILEPATH=${DIR}${FILE}
rsync -az --delete --password-file=/etc/rsync.pass $SRC $DEST && echo "At ${TIME} on ${DATE}, file $FILEPATH was backuped up via rsync" >> /var/log/changelist.log
done