主要内容：
1.Sersync是什么
2.准备环境
3.Sersync的使用
4.Sersync的配置
一、Sersync是什么
实时同步:sersync/inotify
sersync:整合inotify和rsync命令
监控文件/目录是否有变化（增删改）
二、准备环境
web01
nfs01
backup
三、sersync的使用
服务端：
1.准备rsync服务
（1）sersync 利用到了rsync的守护进程模式
（2）backup上面的共享目录为 /nfsbackup
2.准备好sersync
（1）上传 解压 加权限
上传：
QQ图片20190526230726.png
解压
[root@nfs01 tools]# tree
.
└── sersync_installdir_64bit.zip
0 directories, 1 file
[root@nfs01 tools]# unzip sersync_installdir_64bit.zip
Archive: sersync_installdir_64bit.zip
creating: sersync_installdir_64bit/
creating: sersync_installdir_64bit/sersync/
creating: sersync_installdir_64bit/sersync/bin/
inflating: sersync_installdir_64bit/sersync/bin/sersync
creating: sersync_installdir_64bit/sersync/conf/
inflating: sersync_installdir_64bit/sersync/conf/confxml.xml
creating: sersync_installdir_64bit/sersync/logs/
[root@nfs01 tools]# tree
.
├── sersync_installdir_64bit
│?? └── sersync
│?? ├── bin
│?? │?? └── sersync
│?? ├── conf
│?? │?? └── confxml.xml
│?? └── logs
└── sersync_installdir_64bit.zip
5 directories, 3 files
加权限
[root@nfs01 bin]# chmod +x /app/sersync/bin/sersync
[root@nfs01 bin]# sersync
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
daemon thread num: 10
parse xml config file
XML Parsing error inside file 'confxml.xml'.
Error: File not found
At line 0, column 0.
[root@nfs01 bin]#
（2）创建软连接
[root@nfs01 app]# ln -s /app/sersync/bin/sersync /sbin/sersync
[root@nfs01 app]# sersync
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
daemon thread num: 10
parse xml config file
XML Parsing error inside file 'confxml.xml'.
Error: File not found
At line 0, column 0.
（3）配置
[root@nfs01 ~]# diff /app/sersync/conf/confxml.xml ./confxml.xml
5c5
< <fileSystem xfs="true"/>
---
> <fileSystem xfs="false"/>
24c24
< <localpath watch="/upload">
---
> <localpath watch="/opt/tongbu">
30,31c30,31
< <commonParams params="-az"/>
< <auth start="true" users="rsync_backup" passwordfile="/etc/rsync.password"/>
---
> <commonParams params="-artuz"/>
> <auth start="false" users="root" passwordfile="/etc/rsync.pas"/>
36c36
< <failLog path="/var/log/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
---
> <failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
客户端
[root@backup ~]# vim /etc/rsyncd.conf
##created by oldboy 15:01 2009-6-5
##rsyncd.conf start##
fake super = yes
uid = rsync
gid = rsync
use chroot = no
max connections = 2000
timeout = 600
pid file = /var/run/rsyncd.pid
lock file = /var/run/rsync.lock
log file = /var/log/rsyncd.log
ignore errors
read only = false
list = false
#hosts allow = 10.0.0.0/24
#hosts deny = 0.0.0.0/32
auth users = rsync_backup
secrets file = /etc/rsync.password
#####################################
[backup]
comment = www by old0boy 14:18 2012-1-13
path = /backup
#####################################
[nfsbackup]
comment = www by old0boy 14:18 2012-1-13
path = /nfsbackup
#####################################
[upload]
comment = www by old0boy 14:18 2012-1-13
path = /upload
[root@backup ~]# mkdir /upload
[root@backup ~]# chown rsync.rsync /upload/
[root@backup ~]# ll -d /upload/
drwxr-xr-x 2 rsync rsync 6 May 26 23:37 /upload/
[root@backup ~]# systemctl restart rsyncd
（4）启动serrsync服务：
sersync -rd -o /app/sersync/conf/confxml.xml
[root@nfs01 ~]# diff ./confxml.xml /app/sersync/conf/confxml.xml
5c5
< <fileSystem xfs="false"/>
---
> <fileSystem xfs="true"/>
24,25c24,25
< <localpath watch="/opt/tongbu">
< <remote ip="127.0.0.1" name="tongbu1"/>
---
> <localpath watch="/upload">
> <remote ip="172.16.1.41" name="nfsbackup"/>
30,31c30,31
< <commonParams params="-artuz"/>
< <auth start="false" users="root" passwordfile="/etc/rsync.pas"/>
---
> <commonParams params="-az"/>
> <auth start="true" users="rsync_backup" passwordfile="/etc/rsync.password"/>
36c36
< <failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
---
> <failLog path="/var/log/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
[root@nfs01 ~]#
[root@nfs01 ~]#
[root@nfs01 ~]# sersync -rd -o /app/sersync/conf/confxml.xml
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： /app/sersync/conf/confxml.xml
daemon thread num: 10
parse xml config file
host ip : localhost host port: 8008
WARNING XFS FILE SYSTEM WORK
daemon start，sersync run behind the console
use rsync password-file :
user is rsync_backup
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 /upload && rsync -az -R --delete ./ rsync_backup@172.16.1.41::nfsbackup --password-file=/etc/rsync.password >/dev/null 2>&1
run the sersync:
watch path is: /upload
QQ图片20190526234836.png
