搭建文件同步服务：rsync+inotify

• 服务端安装与配置192.168.2.10

  1. 安装rsync

  [root@localhost ~]# yum -y install rsync
  

  2. 建立密码认证文件,并且赋权限

  [root@localhost ~]# cd /etc/
  [root@localhost etc]# vi rsyncd.password
  wbc@wodata
  [root@localhost etc]# chmod 600 rsyncd.password
  

  3 修改配置文件

  [root@localhost ~]# cd /etc/
  [root@localhost etc]# vi rsyncd.conf 
  uid = root
  gid = root
  use chroot = no
  max connections = 3
  timeout = 800
  pid file = /var/run/rsyncd.pid
  lockfile = /var/run/rsyncd.lock
  log file = /var/log/rsyncd.log
  
  [uploads]
  path = /home/wbc/webroot/ROOT/upload
  ignore errors = yes
  host allow = 192.168.0.0/255.255.0.0
  #hosts deny = *
  read only = no
  write only = no
  list = yes
  auth users = wbc
  secrets file = /etc/rsyncd.password
  

  4. 安装inotify-tools，安装在etc下

  需要有编译环境 yum install make gcc gcc-c++

  [root@localhost ~]# cd /etc/
  [root@localhost etc]# wget http://cloud.github.com/downloads/rvoicilas/inotify-tools/inotify-tools-3.14.tar.gz
  [root@localhost etc]# tar zxvf inotify-tools-3.14.tar.gz 
  [root@localhost etc]# rm -rf inotify-tools-3.14.tar.gz
  [root@localhost ~]# cd /etc/inotify-tools-3.14/
  [root@localhost inotify-tools-3.14]# ./configure --prefix=/etc/inotify
  [root@localhost inotify-tools-3.14]# make
  [root@localhost inotify-tools-3.14]# make install
  

  5. 创建rsync复制脚本

  将服务端的/home/wbc/webapps/ROOT/upload/同步到备份端的/home/wbc/webapps/ROOT/uploads/，进行冗余备份，不做删除同步

  [root@localhost etc]# vi rs-upload.sh
  #!/bin/bash
  
  src='/home/wbc/webapps/ROOT/upload/'
  passwordfile='/etc/rsyncd.password'
  user='wbc'
  host0='192.168.2.11'
  rsync_module='uploads'
  
  if [ ! -d "${src}" ]; then
      mkdir -p ${src}
  fi
  
  /etc/inotify/bin/inotifywait -mrq --timefmt '%Y%m%d %H%M%S' --format '%T %w %f' -e modify,delete,create,attrib ${src} | while read DATE TIME DIR file
  
  do
      /usr/bin/rsync -vzrtopg --progress ${src} ${user}@${host0}::${rsync_module} --password-file=${passwordfile}
  
      echo "${file} was rsynced at ${DATE}_${TIME} in ${DIR}" >> /var/log/rsync-upload.log 2>&1
  done
  

  6. 后台执行脚本

  [root@localhost etc]# sh rs-upload.sh &
  

  如果有报错
  inotifywait: error while loading shared libraries: libinotifytools.so.0: cannot open shared object file: No such file or directory
  
  解决方法：
  32位系统：ln -s /etc/inotify/lib/libinotifytools.so.0 /usr/lib/libinotifytools.so.0
  64位系统：ln -s /etc/inotify/lib/libinotifytools.so.0 /usr/lib64/libinotifytools.so.0
  

• 备份端安装与配置192.168.2.11

  1. 安装rsync

  [root@localhost ~]# yum -y install rsync
  

  2. 建立密码认证文件,并且赋权限

  [root@localhost ~]# cd /etc/
  [root@localhost etc]# vi rsyncd.password
  wbc@wodata
  [root@localhost etc]# chmod 600 rsyncd.password
  

  3 修改配置文件

  [root@localhost ~]# cd /etc/
  [root@localhost etc]# vi rsyncd.conf 
  uid = root
  gid = root
  use chroot = no
  max connections = 3
  timeout = 800
  pid file = /var/run/rsyncd.pid
  lockfile = /var/run/rsyncd.lock
  log file = /var/log/rsyncd.log
  
  [uploads]
  path = /home/wbc/webapps/uploads
  ignore errors = yes
  host allow = 192.168.0.0/255.255.0.0
  #hosts deny = *
  read only = no
  write only = no
  list = yes
  auth users = wbc
  secrets file = /etc/rsyncd.password
  

  4. 新增自定义服务文件

  [root@localhost etc]# vi /init.d/rsync
  #!/bin/sh
  #whoami
  #root
  #chkconfig: 345 51 49
  #description: starts the rsync deamons
  #
  
  case "$1" in
  start)
  echo "Starting Rsync ..."
  rsync --daemon --config=/etc/rsyncd.conf
  ;;
  stop)
  echo "Stop Rsync ..."
  pkill rsync > /dev/null 2>/dev/null
  ;;
  restart)
  echo "Restart Rsync ..."
  $0 stop
  $0 start
  ;;
  *)
  echo "Usage: $1 {start|stop|restart}"
  ;;
  esac
  exit 0
  

  5. 启动服务

  [root@localhost etc]# cd /init.d
  [root@localhost etc]# vi rsync
  #!/bin/sh
  #whoami
  #root
  #chkconfig: 345 51 49
  #description: starts the rsync deamons
  #
  
  case "$1" in
  start)
  echo "Starting Rsync ..."
  rsync --daemon --config=/etc/rsyncd.conf
  ;;
  stop)
  echo "Stop Rsync ..."
  pkill rsync > /dev/null 2>/dev/null
  ;;
  restart)
  echo "Restart Rsync ..."
  $0 stop
  $0 start
  ;;
  *)
  echo "Usage: $1 {start|stop|restart}"
  ;;
  esac
  exit 0
  

  6. 为自定义服务赋权限

  [root@localhost init.d]# chmod +x rsync 
  

  7. 启动服务

  [root@localhost init.d]# service rsync start
  

• 目前为止已经安装配置好了

  1. 在服务端测试

  [root@localhost upload]# mkdir test
  

  正常情况会输出以下信息
  [root@localhost upload]# sending incremental file list
  ./
  test/
  
  sent 107 bytes  received 19 bytes  252.00 bytes/sec
  total size is 0  speedup is 0.00
  

  2. 在备份端做检查

  查看该目录下是否有test文件夹
  [root@localhost ~]# ll /home/wbc/webapps/uploads
  

• 引文

  linux系统中rsync+inotify实现服务器之间文件实时同步