Linxu服务器文件双向同步 rsync+sersync
[toc]
基础信息
系统:Centos7.8
- 服务器信息
服务器 | IP |
---|---|
test21 | 10.8.10.21 |
test22 | 10.8.10.22 |
- 软件版本信息
软件包 | 版本 |
---|---|
rsync | |
sersync |
Rsync安装包下载地址:https://github.com/WayneD/rsync/releases
安装
rsync
安装
查看是否已经安装
rpm -qa | grep rsync
安装
yum -y install rsync
配置
- 修改
test21
服务器文件/etc/rsyncd.conf
# /etc/rsyncd: configuration file for rsync daemon mode
# See rsyncd.conf man page for more options.
# configuration example:
uid = root # 指定运行rsync daemon的用户
gid = root # 指定运行rsync daemon的组
use chroot = no
address = 10.8.10.21 # 指定监听地址
port = 873 # 默认监听端口
max connections = 0 #最大连接数,0为无限制
pid file = /var/run/rsyncd.pid # 指定pid文件
log file = /var/log/rsyncd.log # 指定日志文件
exclude = lost+found/ # 指定不同步的目录
ignore errors
#transfer logging = yes
#timeout = 900
#ignore nonreadable = yes
#dont compress = *.gz *.tgz *.zip *.z *.Z *.rpm *.deb *.bz2
# [ftp]
# path = /home/ftp
# comment = ftp export area
[update] # update模块
path = /root/updatedir # update模块需要同步目录
comment = test rsync + sersync # update模块的简要说明
read only = no # 是否只读
list = no # 当用户查询该服务器上的可用模块时,是否列出该模块
auth users = rsync_daemon # 同步文件使用到的虚拟用户
secrets file = /etc/rsync_update.passwd # 指定该虚拟用户对应的密码文件,该文件权限为(400)
hosts allow = 10.8.10.22 # 指定可以连接该模块的主机(x.x.x.x x.x.x.x/x)
- 修改
test22
服务器文件/etc/rsyncd.conf
# /etc/rsyncd: configuration file for rsync daemon mode
# See rsyncd.conf man page for more options.
# configuration example:
uid = root # 指定运行rsync daemon的用户
gid = root # 指定运行rsync daemon的组
use chroot = no
address = 10.8.10.22 # 指定监听地址
port = 873 # 默认监听端口
max connections = 0 #最大连接数,0为无限制
pid file = /var/run/rsyncd.pid # 指定pid文件
log file = /var/log/rsyncd.log # 指定日志文件
exclude = lost+found/ # 指定不同步的目录
ignore errors
#transfer logging = yes
#timeout = 900
#ignore nonreadable = yes
#dont compress = *.gz *.tgz *.zip *.z *.Z *.rpm *.deb *.bz2
# [ftp]
# path = /home/ftp
# comment = ftp export area
[update] # update模块
path = /root/updatedir # update模块需要同步目录
comment = test rsync + sersync # update模块的简要说明
read only = no # 是否只读
list = no # 当用户查询该服务器上的可用模块时,是否列出该模块
auth users = rsync_daemon # 同步文件使用到的虚拟用户
secrets file = /etc/rsync_update.passwd # 指定该虚拟用户对应的密码文件,该文件权限为(400)
hosts allow = 10.8.10.21 # 指定可以连接该模块的主机(x.x.x.x x.x.x.x/x)
根据配置文件创建相应的目录、文件、防火墙规则
创建需要同步的目录
在两个服务器上分别创建需要同步的目录
[root@test21 ~]# mkdir /root/updatedir
[root@test22 ~]# mkdir /root/updatedir
创建同步用户
创建虚拟用户rsync_daemon
使用的密码文件/etc/rsync_update.passwd
该文件的权限必须为400
[root@test21 ~]# echo "rsync_daemon:123456789" > /etc/rsync_update.passwd
[root@test21 updatedir]# chmod 400 /etc/rsync_update.passwd
[root@test22 ~]# echo "rsync_daemon:123456789" > /etc/rsync_update.passwd
[root@test22 updatedir]# chmod 400 /etc/rsync_update.passwd
防火墙
这里我是关闭了防火墙,如果防火墙开启,防火墙规则要将873端口加入
启动rsyncd服务
[root@test21 ~]# systemctl start rsyncd
[root@test22 ~]# systemctl start rsyncd
- 查看端口
[root@test21 /]# ss -antuple | grep 873
tcp LISTEN 0 5 10.8.10.21:873 *:* users:(("rsync",pid=14221,fd=3)) ino:72483 sk:ffff8800b7d75d00 <->
[root@test22 ~]# ss -antuple | grep 873
tcp LISTEN 0 5 10.8.10.22:873 *:* users:(("rsync",pid=1735,fd=3)) ino:29740 sk:ffff880226eb87c0 <->
测试
test21
向test22
同步
[root@test21 updatedir]# ls
[root@test21 updatedir]# touch file{1..5}
[root@test21 updatedir]# rsync -av /root/updatedir/ rsync_daemon@10.8.10.22::update
Password:
sending incremental file list
./
file1
file2
file3
file4
file5
sent 314 bytes received 114 bytes 171.20 bytes/sec
total size is 0 speedup is 0.00
test22
服务器查看
[root@test22 updatedir]# ls
file1 file2 file3 file4 file5
test22
向test21
同步
# 创建file6 - file10 空文件
[root@test22 updatedir]# touch file{6..10}
# 文件同步
[root@test22 updatedir]# rsync -av /root/updatedir/ rsync_daemon@10.8.10.21::update
Password:
sending incremental file list
./
file10
file6
file7
file8
file9
sent 388 bytes received 114 bytes 111.56 bytes/sec
total size is 0 speedup is 0.00
test21
服务器查看
[root@test21 updatedir]# ls
file1 file10 file2 file3 file4 file5 file6 file7 file8 file9
rsync
数据同步成功,我们可以设置linxu定时任务crontab
每隔一段时间自动双向同步文件。
异常处理
- 提示权限不足
test22
发送到test21
可以正常发送,test21
发送到test22
无法发送
[root@test21 updatedir]# rsync -av /root/updatedir/ rsync_daemon@10.8.10.22::update
Password:
sending incremental file list
rsync: failed to set times on "." (in update): Permission denied (13)
./
file1
file2
file3
file4
file5
rsync: mkstemp ".file1.PRynLL" (in update) failed: Permission denied (13)
rsync: mkstemp ".file2.L3Zgd2" (in update) failed: Permission denied (13)
rsync: mkstemp ".file3.t4KaFi" (in update) failed: Permission denied (13)
rsync: mkstemp ".file4.PZF46y" (in update) failed: Permission denied (13)
rsync: mkstemp ".file5.NOJYyP" (in update) failed: Permission denied (13)
报错后查看网上各种资料描述,说是目录权限改为755
等,试了之后都不行
随后又增加了一台服务器做测试,发现新增的也不行
[root@test22 etc]# rsync -av /root/updatedir/ root@10.8.10.20::update
Password:
sending incremental file list
rsync: failed to set times on "." (in update): Permission denied (13)
rsync: recv_generator: failed to stat "123" (in update): Permission denied (13)
./
sent 59 bytes received 173 bytes 51.56 bytes/sec
total size is 0 speedup is 0.00
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1179) [sender=3.1.2]
后来在stackoverflow
发现有大佬提示说selinux
问题导致,我们查看服务器配置
参考文献:https://stackoverflow.com/questions/11039559/rsync-mkstemp-failed-permission-denied-13
[root@test21 etc]# getenforce
Permissive
[root@test20 updatedir]# getenforce
Enforcing
[root@test22 etc]# getenforce
Enforcing
发现的确21和22,20配置不同
修改22,20配置
[root@test20 updatedir]# setenforce 0
[root@test20 updatedir]# getenforce
Permissive
[root@test22 etc]# setenforce 0
[root@test22 etc]# getenforce
Permissive
setenforce 0
为临时修改,永久修改vim /etc/sysconfig/selinux
SELINUX=enforcing
修改为
SELINUX=disable 或者 SELINUX=permissive
再次执行发现可以同步成功
[root@test22 etc]# rsync -av /root/updatedir/ root@10.8.10.20::update
Password:
sending incremental file list
./
123
sent 102 bytes received 38 bytes 40.00 bytes/sec
total size is 0 speedup is 0.00
[root@test22 etc]# rsync -av /root/updatedir/ root@10.8.10.20::update
Password:
sending incremental file list
./
123
sent 102 bytes received 38 bytes 40.00 bytes/sec
total size is 0 speedup is 0.00
sersync
上面安装完成rsync
,我们只能通过定时任务触发文件同步,sersync
可以对文件的变更进行实时监听,并触发rsync对变更的文件进行实时同步。
安装
下载:[点击下载]
将文件放在两台服务器中,并解压
[root@test22 sersync]# ll
总用量 712
-rw-------. 1 root root 727290 11月 10 13:11 sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@test22 sersync]# pwd
/opt/sersync
[root@test22 sersync]# tar -zxvf sersync2.5.4_64bit_binary_stable_final.tar.gz
GNU-Linux-x86/
GNU-Linux-x86/sersync2
GNU-Linux-x86/confxml.xml
[root@test22 sersync]# ls GNU-Linux-x86/
confxml.xml sersync2
[root@test21 sersync]# ll
总用量 712
-rw-------. 1 root root 727290 11月 10 13:11 sersync2.5.4_64bit_binary_stable_final.tar.gz
[root@test21 sersync]# pwd
/opt/sersync
[root@test21 sersync]# tar -zxvf sersync2.5.4_64bit_binary_stable_final.tar.gz
GNU-Linux-x86/
GNU-Linux-x86/sersync2
GNU-Linux-x86/confxml.xml
[root@test21 sersync]# ls GNU-Linux-x86/
confxml.xml sersync2
sersync配置
test21配置
内容过多只显示了修改的位置,其他都是默认的
<remote ip="10.8.10.22" name="update"/>
<auth start="true" users="rsync_daemon" passwordfile="/etc/rsync.pas"/>
[root@test21 GNU-Linux-x86]# vim confxml.xml
...
<sersync>
<localpath watch="/opt/updatedir">
<remote ip="10.8.10.22" name="update"/>
<!--<remote ip="192.168.8.39" name="tongbu"/>-->
<!--<remote ip="192.168.8.40" name="tongbu"/>-->
</localpath>
<rsync>
<commonParams params="-artuz"/>
<auth start="true" users="rsync_daemon" passwordfile="/etc/rsync.pas"/>
<userDefinedPort start="false" port="874"/><!-- port=874 -->
<timeout start="false" time="100"/><!-- timeout=100 -->
<ssh start="false"/>
</rsync>
<failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
<crontab start="false" schedule="600"><!--600mins-->
<crontabfilter start="false">
<exclude expression="*.php"></exclude>
<exclude expression="info/*"></exclude>
</crontabfilter>
</crontab>
<plugin start="false" name="command"/>
</sersync>
...
- watch 指定了监控的文件目录
- remote ip 指定远程rsync服务监听的ip,
- name 指定了远程rsync服务开启的模块
- start=“true” 说明远程rsync服务开启了用户密码验证
- users 指定了远程rsync服务用户密码验证指定的虚拟用户
- passwordfile 指定了连接远程rsync服务虚拟用户的密码文件,权限需为400,用户自己手动创建
创建密码文件
[root@test21 GNU-Linux-x86]# echo 123456789 > /etc/rsync.pas
[root@test21 GNU-Linux-x86]# chmod 400 /etc/rsync.pas
test22配置
[root@test22 GNU-Linux-x86]# vim confxml.xml
...
<sersync>
<localpath watch="/opt/updatedir">
<remote ip="10.8.10.21" name="update"/>
<!--<remote ip="192.168.8.39" name="tongbu"/>-->
<!--<remote ip="192.168.8.40" name="tongbu"/>-->
</localpath>
<rsync>
<commonParams params="-artuz"/>
<auth start="true" users="rsync_daemon" passwordfile="/etc/rsync.pas"/>
<userDefinedPort start="false" port="874"/><!-- port=874 -->
<timeout start="false" time="100"/><!-- timeout=100 -->
<ssh start="false"/>
</rsync>
<failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once-->
<crontab start="false" schedule="600"><!--600mins-->
<crontabfilter start="false">
<exclude expression="*.php"></exclude>
<exclude expression="info/*"></exclude>
</crontabfilter>
</crontab>
<plugin start="false" name="command"/>
</sersync>
...
创建密码文件
[root@test22 GNU-Linux-x86]# echo 123456789 > /etc/rsync.pas
[root@test22 GNU-Linux-x86]# chmod 400 /etc/rsync.pas
sersync启动
test21启动
[root@test21 updatedir]# /opt/sersync/GNU-Linux-x86/sersync2 -d -r -o /opt/sersync/GNU-Linux-x86/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: -d run as a daemon
option: -r rsync all the local files to the remote servers before the sersync work
option: -o config xml name: /opt/sersync/GNU-Linux-x86/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_daemon
passwordfile is /etc/rsync.pas
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 /root/updatedir && rsync -artuz -R --delete ./ rsync_daemon@10.8.10.22::update --password-file=/etc/rsync.pas >/dev/null 2>&1
run the sersync:
watch path is: /root/updatedir
- -d 以后台daemon的方式运行
- -r 第一次启动时,使用rsync将本地文件全部同步至远程服务器。
- -o 加载配置文件
test22启动
[root@test22 updatedir]# /opt/sersync/GNU-Linux-x86/sersync2 -d -r -o /opt/sersync/GNU-Linux-x86/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: -d run as a daemon
option: -r rsync all the local files to the remote servers before the sersync work
option: -o config xml name: /opt/sersync/GNU-Linux-x86/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_daemon
passwordfile is /etc/rsync.pas
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 /root/updatedir && rsync -artuz -R --delete ./ rsync_daemon@10.8.10.21::tongbu1 --password-file=/etc/rsync.pas >/dev/null 2>&1
run the sersync:
watch path is: /root/updatedir
测试
新增文件
在test21
上传一个文件,在test22
查看也同时存在
[root@test21 updatedir]# ll
总用量 4
-rw-------. 1 root root 253 11月 10 11:12 1.sh
[root@test22 updatedir]# ll
总用量 4
-rw-------. 1 root root 253 11月 10 11:12 1.sh
修改内容
修改test22
[root@test22 updatedir]# ll
总用量 4
-rw-------. 1 root root 253 11月 10 11:12 1.sh
[root@test22 updatedir]# echo 1 > 1.sh
[root@test22 updatedir]# ll
总用量 4
-rw-------. 1 root root 2 11月 10 13:59 1.sh
[root@test22 updatedir]# cat 1.sh
1
查看test21
发现修改的内容同步成功
[root@test21 updatedir]# cat 1.sh
1
删除文件
删除test21
文件
[root@test21 updatedir]# rm 1.sh
rm:是否删除普通文件 "1.sh"?y
[root@test21 updatedir]# ll
总用量 0
在test22
查看发现文件也同步删除
[root@test22 updatedir]# ll
总用量 0