## Rsync搭建

### 1.1 环境准备

```

Rsync-Server  192.168.1.174

Client-Rsync  192.168.1.173

服务启动用户都是root,客户端的用户也是root

[root@Rsync-Server file]# systemctl stop firewalld

[root@Rsync-Server file]# getenforce

Permissive

```

### 1.1 检查是否安装rsync

```

[root@Rsync-Server ~]# rpm -qa|grep rsync

#如果没有安装Rsync

[root@Rsync-Server ~]# yum install -y rsync

```

### 1.2 服务端配置Rsync

```

[root@Rsync-Server ~]# cat /etc/rsyncd.conf

uid = root

gid = root

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

[file]

path = /data/file/

ignore errors

read only = false

list = false

hosts allow = 192.168.1.0/24

hosts deny = 0.0.0.0/32

auth users = rsync_file

secrets file = /etc/rsync.password

[root@Rsync-Server ~]# cat /etc/rsync.password

rsync_file:123456

[root@Rsync-Server ~]# ll /etc/rsync.password

-rw-------. 1 root root 18 Oct 19 11:37 /etc/rsync.password

```

### 1.3 Rsync启动脚本

```

[root@Rsync-Server file]# cat /etc/init.d/rsyncd

#!/bin/bash

. /etc/init.d/functions

start() {

  rsync --daemon &>/dev/null

  if [ $? = 0 ];then

     action "startting rsync" /bin/true

  else

     action "startting rsync" /bin/false

  fi

}

stop() {

  if [ -e /var/run/rsyncd.pid ];then

     kill -9 `cat /var/run/rsyncd.pid` &>/dev/null

     rm -fr /var/run/rsyncd.pid /var/run/rsync.lock

     action "stopping rsync" /bin/true

  else

     echo "the rsyncd is not running"

  fi

}

status() {

  if [ -e "/var/run/rsyncd.pid" ];then

      echo -e "\033[32m rsyncd is running... \033[0m"

  else

      echo -e "\033[31m rsyncd is stopped \033[0m"

   fi

}  

restart() {

    stop

    start

}

case $1 in

      start)

           start

      ;;

      stop)

           stop

      ;;

      status)

           status

      ;;

      restart)

           restart

      ;;

      *)

      echo "USAG: $0 {start|stop|status|restart}"

esac

"Centos7用systemctl管理Rsync"

[root@Rsync-Server ~]# cat /usr/lib/systemd/system/rsyncd.service

[Unit]

Description=fast remote file copy program daemon

ConditionPathExists=/etc/rsyncd.conf

[Service]

EnvironmentFile=/etc/sysconfig/rsyncd

Type=forking

PIDFile=/var/run/rsyncd.pid

ExecStart=/etc/init.d/rsyncd start

ExecReload=/etc/init.d/rsyncd restart

ExecStop=/etc/init.d/rsyncd stop

PrivateTmp=true

[Install]

WantedBy=multi-user.target

```

### 1.4 Rsync客户端

```

[root@Client-Rsync ~]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

[root@Client-Rsync ~]# yum install -y inotify-tools rsync

[root@Client-Rsync ~]# cat /etc/rsync.password

123456

#测试一下rsync推送是否有问题

[root@Client-Rsync ~]# touch /data/file/ceshi_Test

[root@Client-Rsync ~]# rsync -avz /data/file/ rsync_file@192.168.1.174::file --password-file=/etc/rsync.password

sending incremental file list

./

ceshi_Test

sent 172 bytes  received 46 bytes  436.00 bytes/sec

total size is 0  speedup is 0.00

没有报错证明rsync推送成功,参数说明:

-v    详细模式输出，给出传输进度等信息

-z    压缩传输  --compress-level=NUM 指定压缩级别 1-9，9是最大压缩级别

-a    以归档方式传输，保留文件属性

        -r    递归传输

        -t    保持文件时间信息

        -o    保持文件属主信息

        -p    保持文件权限

        -g    保持文件属组信息

        -P    显示同步过程及进度等信息

        -D    保持设备文件信息

        -l    保持软链接

        这些参数加起来等于 –a

--exclude=PATTERN    指定排除不需要传输的文件

--exclude-from=FILE  排除FILE中记录的文件

--delete   保证两边数据完全一样,如果源里没有该文件,就在目标目录删除

```

### 1.5 配合inotify-tools

```

[root@Client-Rsync ~]# cat inotify.sh

#!/bin/bash

inotifywait  -mrq --timefmt '%d/%m/%y %H:%M' --format '%T %w%f' -e create,close_write,modify,move,attrib /data/file/ \

|while read file

do

    rsync -avz /data/file/ rsync_file@192.168.1.174::file --password-file=/etc/rsync.password

done

inotifywait参数详解：

-m      是保持一直监听

-r      是递归查看目录

-q      是打印出事件

-e      modify,delete,create,attrib 是指"监听 创建 移动 删除 写入权限"

#启动测试

[root@Client-Rsync ~]# nohup sh inotify.sh  &

```

### 优化

```

如果实际并发较大,可以适当的把inotify简单优化下:

ls -l /proc/sys/fs/inotify/

echo "50000000" > /proc/sys/fs/inotify/max_user_watches	加大单进程最大的文件监视数量

echo "50000000" > /proc/sys/fs/inotify/max_queued_events	加大队列可容纳的事件数量

```