使用inotify和rsync配置实时目录同步

一、环境介绍

有IP地址末尾分别为*.*.*.3,*.*.*.4,*.*.*.5,*.*.*.6的4台主机，要求在*.*.*.6上部署一个新版本，*.*.*.3，*.*.*.4，*.*.*.5实时同步*.*.*.6上的新版本，

二、实施

1 在*.*.*.6上安装inotify

wget

tar zxvf inotify-tools-3.14.tar.gz

cd inotify-tools-3.14

./configure

make

make install

2 后天运行实时监控脚本./.in_rsyncd.sh &

vim .in_rsyncd.sh

#!/bin/bash

#---------------------------------------------------------------

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin

export PATH

auth_user=nazca

remote_ip_3=*.*.*.3
remote_ip_4=*.*.*.4
remote_ip_5=*.*.*.5


remote_module=themis

local_dir=/themis/glassfish3/glassfish/domains/domain1/themis-dist/


auth_file=/etc/rsyncd.pwd

rsync_path=/usr/bin/rsync

inotify=/usr/local/bin/inotifywait

$inotify -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w %f' -e modify,move,delete,create,attrib $local_dir | while read date time dir file;do
FILECHANGE=${dir}${file}
$rsync_path -avrop --delete $local_dir $auth_user@$remote_ip_3::$remote_module --password-file=$auth_file
$rsync_path -avrop --delete $local_dir $auth_user@$remote_ip_4::$remote_module --password-file=$auth_file
$rsync_path -avrop --delete $local_dir $auth_user@$remote_ip_5::$remote_module --password-file=$auth_file
echo "At ${time} on ${date},file $FILECHANGE was backed up via rsync"
done

3 配置rsync，分别在.3,.4,.5上配置rsync，启动rsyncd服务，

vim /etc/xinetd.d/rsync

# default: off
# description: The rsync server is a good addition to an ftp server, as it \
#       allows crc checksumming etc.
service rsync
{
        disable = no
        socket_type     = stream
        wait            = no
        user            = root
        server          = /usr/bin/rsync
        server_args     = --daemon
        log_on_failure  += USERID
}

vim /etc/rsyncd.conf

# Global Settings
uid = root
gid = root
use chroot = no
max connections = 80
secrets file=/etc/rsyncd.pwd
log file=/var/log/rsyncd.log
pid file=/var/run/rsyncd.pid
lock file=/var/run/rsyncd.lock

[themis]
path = /themis/glassfish3/glassfish/domains/domain1/themis-dist
read only = no
ignore errors
list = no

注：ignore errors可以忽略，因为在同步的时候会产生如下报错：params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors

配置完成重启/etc/init.d/xinetd restart