[root@localhost2 ~]# cat /etc/rsyncd.conf 
##created by cai at 2018-2-24
uid=rsync
gid=rsync
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
[data]
path = /data/
ignore errors
read only = false
list = false
hosts allow = 192.168.181.128:52000/24
hosts deny = 0.0.0.0/32
auth users = rsync_body
secrets file = /etc/rsync.password
[root@localhost2 ~]# ls -ld /data/
drwxrwxrwx. 3 rsync rsync 4096 Feb 24 16:58 /data/

[root@localhost2 ~]# cat /etc/rsync.password 
rsync_body:admin

[root@localhost2 ~]# ls -ld /etc/rsync.password 
-rw-------. 1 root root 17 Feb 24 16:26 /etc/rsync.password　　#600权限

[root@localhost2 ~]# netstat -lntup| grep "rsync"
tcp 0 0 0.0.0.0:873 0.0.0.0:* LISTEN 1497/rsync 
tcp 0 0 :::873 :::* LISTEN 1497/rsync

[root@localhost1 ~]# cat /etc/rsync.password 
admin
[root@localhost1 ~]# ls -ld /etc/rsync.password 
-rw------- 1 root root 6 Feb 24 03:54 /etc/rsync.password

[root@salt-client01 ~]# cd /usr/local/src/
[root@salt-client01 src]# tar -zxvf sersync2.5.4_64bit_binary_stable_final.tar.gz -C /usr/local/
GNU-Linux-x86/
GNU-Linux-x86/sersync2
GNU-Linux-x86/confxml.xml
[root@salt-client01 src]# cd /usr/local/
[root@salt-client01 local]# mv GNU-Linux-x86 sersync
[root@salt-client01 local]# cd sersync/
[root@salt-client01 sersync]# mkdir conf bin log
[root@salt-client01sersync]# mv confxml.xml conf
[root@salt-client01sersync]# mv sersync2 bin/sersync

***********************************30行开始******************************
  <commonParams params="-artuz"/> #-artuz为rsync同步时的参数
  <authstart="true" users="rsync的虚拟用户名(rsync_backup)" passwordfile="rsync的密码文件"/>
  <userDefinedPort start="true"port="873"/><!-- port=874 -->
  <timeout start="false" time="100"/><!--timeout=100 -->
  <sshstart="false"/>
    ************************************第36行***********************************
    <failLogpath="自己定义的log文件夹(/usr/local/sersync/log)rsync_fail_log.sh"
    timeToExecute="60"/><!--defaultevery 60mins execute once-->
    *******************************************************************************
    *注：若有多个目录备份可以穿件多个配置文件在启动时的-o参数中添加即可

[root@salt-client01 conf]# diff confxml.xml confxml.xml.bak
24,25c24,25
<   <localpath watch="/data/">  #data就是本地需要同步的文件夹到服务器端的目录
<     <remote ip="192.168.91.166" name="data"/> #data (server的模块名)是rsync 服务端的文件夹，也就是推送到服务器端的目标文件夹，可以配置多个，
---
>   <localpath watch="/opt/tongbu">
>     <remote ip="127.0.0.1" name="tongbu1"/>
31c31
<     <auth start="true" users="rsync_body" passwordfile="/etc/rsync.password"/>  #true 才能生效，rsync_body同步时候虚拟账号，后面是密码文件
---
>     <auth start="false" users="root" passwordfile="/etc/rsync.pas"/>
33c33
<     <timeout start="true" time="100"/><!-- timeout=100 -->          #true 才能生效
---
>     <timeout start="false" time="100"/><!-- timeout=100 -->
36c36
<   <failLog path="/usr/local/sersync/log/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once--> #检测rsync进程判断，没有自动启
---
>   <failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default evePry 60mins execute once-->

[root@salt-client01 src]# echo 'export PATH=$PATH:/usr/local/sersync/bin'/etc/profile #声明环境变量
[root@salt-client01 src]# source /etc/profile
[root@salt-client01 src]# sersync2 -r -d -o /usr/local/sersync/conf/confxml.xml #启动
set the system param
execute：echo 50000000 > /proc/sys/fs/inotify/max_user_watches
execute：echo 327679 > /proc/sys/fs/inotify/max_queued_events
parse the command param
option: -r   rsync all the local files to the remote servers before the sersync work
option: -d   run as a daemon
option: -o   config xml name： /usr/local/sersync/conf/confxml.xml
daemon thread num: 10
parse xml config file
host ip : localhost  host port: 8008
daemon start，sersync run behind the console
use rsync password-file :
user is  rsync_body
passwordfile is   /etc/rsync.password
config xml parse success
please set /etc/rsyncd.conf max connections=0 Manually
sersync working thread 12 = 1(primary thread) + 1(fail retry thread) + 10(daemon sub threads)
Max threads numbers is: 22 = 12(Thread pool nums) + 10(Sub threads)
please according your cpu ，use -n param to adjust the cpu rate
------------------------------------------
rsync the directory recursivly to the remote servers once
working please wait...
execute command: cd /data && rsync -artuz -R --delete ./ --timeout=100 rsync_body@192.168.91.166::data --password-file=/etc/rsync.password >/dev/null 2>&1
run the sersync:
watch path is: /data #此时可以看出sersync已经启动成功了

#检测脚本
[root@salt-client01 log]# pwd
/usr/local/sersync/log
[root@salt-client01 log]# vim rsync_fail_log.sh
[root@salt-client01 log]# chmod +x rsync_fail_log.sh
[root@salt-client01 ~]# cat /usr/local/sersync/log/rsync_fail_log.sh
#!/bin/bash
#Purpose: Check sersync whether it is alive
#Author: cai meng zhi
SERSYNC="/usr/local/sersync/bin/sersync2"
CONF_FILE="/usr/local/sersync/conf/confxml.xml"
STATUS=$(ps aux |grep 'sersync2'|grep -v 'grep'|wc -l)
if [ $STATUS -eq 0 ];
then
    $SERSYNC -d -r -o $CONF_FILE &
else
    exit 0;
fi
脚本写好以后，添加到计划任务中去
*/1 * * * * /bin/bash /usr/local/sersync/log/rsync_fail_log.sh > /dev/null 2>&1

测试同步：
客户端新增文件
[root@salt-client01 data]# cp /etc/passwd 192.168.91.156.passwd
[root@salt-client01 data]# ll
total 4
-rw-r--r-- 1 root root 1928 Nov 10 18:15 192.168.91.156.passwd
-rw-r--r-- 1 root root  0 Nov 10 17:27 3
服务端检测
[root@salt-master data]# cd /data/
[root@salt-master data]# ll
total 8
-rw-r--r-- 1 root root 1928 Nov 10 18:15 192.168.91.156.passwd #说明已经同步过来了
-rw-r--r-- 1 root root  0 Nov 10 17:27 3
drwxr-xr-x 2 root root 4096 Nov 10 17:27 data

客户端测试删除
[root@salt-client01 data]# rm rf 192.168.91.156.passwd 
rm: cannot remove `rf': No such file or directory
rm: remove regular file `192.168.91.156.passwd'"htmlcode">

错误一：
@ERROR: auth failed on module xxxxx
rsync: connection unexpectedly closed(90 bytes read so far)
rsync error: error in rsync protocoldata stream (code 12) at io.c(150)
说明：这是因为密码设置错了，无法登入成功，检查一下rsync.pwd，看客服是否匹配。还有服务器端没启动rsync 服务也会出现这种情况。
 
错误二：
password file must not beother-accessible
continuing without password file
Password:
说明：这是因为rsyncd.pwdrsyncd.sec的权限不对，应该设置为600。如：chmod600 rsyncd.pwd
 
错误三：
@ERROR: chroot failed
rsync: connection unexpectedly closed(75 bytes read so far)
rsync error: error in rsync protocoldata stream (code 12) at io.c(150)
说明：这是因为你在 rsync.conf中设置的 path 路径不存在，要新建目录才能开启同步
 
错误四：
rsync: failed to connect to218.107.243.2: No route to host (113)
rsync error: error in socket IO (code10) at clientserver.c(104) [receiver=2.6.9]
说明：防火墙问题导致，这个最好先彻底关闭防火墙，排错的基本法就是这样，无论是S还是C，还有ignore errors选项问题也会导致
 
错误五：
@ERROR: access denied to www fromunknown (192.168.1.123)
rsync: connection unexpectedly closed(0 bytes received so far) [receiver]
rsync error: error in rsync protocoldata stream (code 12) at io.c(359)
说明：此问题很明显，是配置选项hostallow的问题，初学者喜欢一个允许段做成一个配置，然后模块又是同一个，致使导致
 
错误六：
rsync error: received SIGINT,SIGTERM, or SIGHUP (code 20) at rsync.c(244) [generator=2.6.9]
rsync error: received SIGUSR1 (code19) at main.c(1182) [receiver=2.6.9]
说明：导致此问题多半是服务端服务没有被正常启动，到服务器上去查查服务是否有启动，然后查看下 /var/run/rsync.pid 文件是否存在，最干脆的方法是杀死已经启动了服务，然后再次启动服务或者让脚本加入系统启动服务级别然后shutdown -r now服务器

错误七：
rsync: read error: Connection resetby peer (104)
rsync error: error in rsync protocoldata stream (code 12) at io.c(604) [sender=2.6.9]
说明：原数据目录里没有数据存在



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