##rsync_webdata 用来同步返利网的php代码到每台服务器
基本架构
normal webserver but not serve user
soucecode soucecode soucecode
s1 s2 s3
\ | /
\ | /
\ | /
\ ssh |ssh /ssh
\ | /
lvs-cluster
/ | \
/ | \
/ | \
rsync |rsync \rsync over ssh
/ | \
/ | \
phpweb1 phpweb2 phpweb..
\ | /
\ | /
\ | /
\ | /
ssh or crontab
|
| / call rsync pull code
rsync_webdata
\ trigger call rsync