系统环境: rhel6 x86_64 iptables and selinux disabled
主机:192.168.122.160 server60.example.com
192.168.122.154 server54.example.com
相关网址: rpm.pbone.net
ftp://ftp.gnutls.org/pub/gnutls/libtasn1/libtasn1-2.1.tar.gz
http://www.sqlite.org/sqlite-2.8.17.tar.gz
http://internode.dl.sourceforge.net/sourceforge/librsync/librsync-0.9.7.tar.gz
ftp://ftp.gnu.org/pub/gnu/gnutls/gnutls-2.6.6.tar.bz2
http://oss.linbit.com/csync2/csync2-1.34.tar.gz
http://jaist.dl.sourceforge.net/sourceforge/inotify-tools/inotify-tools-3.13.tar.gz
所需的包:librsync-0.9.7-15.el6.x86_64.rpm
librsync-devel-0.9.7-15.el6.x86_64.rpm sqlite-2.8.17.tar.gz
gnutls-2.6.6.tar.bz2 csync2-1.34.tar.gz
以下步骤在server60和server54上实施:
[root@server60
kernel]# yum install libtasn1-devel make xinetd -y
[root@server60
kernel]# rpm -ivh librsync-0.9.7-15.el6.x86_64.rpm
[root@server60
kernel]# rpm -ivh librsync-devel-0.9.7-15.el6.x86_64.rpm
[root@server60
kernel]# tar zxf sqlite-2.8.17.tar.gz
[root@server60
kernel]# cd sqlite-2.8.17
[root@server60
sqlite-2.8.17]# ./configure
此时会出现如下错误:
(1)configure:
error: no acceptable C compiler found in $PATH
(2)configure:
error: C++ preprocessor "/lib/cpp" fails sanity check
解决方法如下:
(1)[root@server60
sqlite-2.8.17]# yum install gcc -y
(2)[root@server60
sqlite-2.8.17]# yum install gcc-c++ -y
[root@server60
sqlite-2.8.17]# make && make install
[root@server60
sqlite-2.8.17]# ldconfig
[root@server60
kernel]# tar jxf gnutls-2.6.6.tar.bz2
[root@server60
kernel]# cd gnutls-2.6.6
[root@server60
gnutls-2.6.6]# ./configure
此时会出现如下错误:
(1)***
libgcrypt was not found. You may want to get it from
解决方法如下:
[root@server60
gnutls-2.6.6]# yum install libgcrypt-devel -y
[root@server60
gnutls-2.6.6]# make && make install
[root@server60
kernel]# tar zxf csync2-1.34.tar.gz
[root@server60
kernel]# cd csync2-1.34
[root@server60
csync2-1.34]# yum install byacc flex -y
[root@server60
csync2-1.34]# ./configure
此时会出现如下错误:
(1)configure:
error: gnutls not found; install gnutls, gnutls-openssl and libtasn1
packages for your system or run configure with --disable-gnutls
解决方法如下:
(2)[root@server60
csync2-1.34]# echo /usr/local/lib >> /etc/ld.so.conf
[root@server60 csync2-1.34]# ldconfig
[root@server60
csync2-1.34]# make && make install
以下步骤在server60上实施:
[root@server60
csync2-1.34]# make cert
[root@server60
csync2-1.34]# csync2 -k /etc/csync2.key
(server54不用重新创建key,并且生成key时需要不断地移动鼠标或敲击键盘)
[root@server60
csync2-1.34]# vim /etc/csync2.cfg
group mygroup
{
host
server60.example.com server54.example.com; (每台主机完整主机名)
#
host host4@host4-eth2;
#
key /etc/csync2.key;
#
include /opt/csync2; (同步目录)
#
include %homedir%/bob;
#
exclude %homedir%/bob/temp;
#
exclude *~ .*;
#
#
action
#
{
#
pattern /etc/apache/httpd.conf;
#
pattern /etc/apache/sites-available/*;
#
exec "/usr/sbin/apache2ctl graceful";
#
logfile "/var/log/csync2_action.log";
#
do-local;
#
}
#
#
backup-directory /var/backups/csync2;
(防错备份目录，根据自己的需求设置，每台主机上都要有)
#
backup-generations 3;
#
auto
younger; (同步以最新的文件为标准更新)
}
[root@server60
~]# scp /etc/csync2* root@192.168.122.154:/etc/
[root@server60
~]# cd /etc/xinetd.d/
[root@server60
xinetd.d]# cp rsync csync2
[root@server60
xinetd.d]# vim csync2
service
csync2
{
disable
= no
protocol
= tcp
flags
= REUSE
socket_type =
stream
wait = no
user =
root
server
= /usr/local/sbin/csync2
server_args
= -i
}
[root@server60
xinetd.d]# vim /etc/services
csync2
30865/tcp
[root@server60
xinetd.d]# scp /etc/xinetd.d/csync2
root@192.168.122.154:/etc/xinetd.d/
[root@server60
xinetd.d]# scp /etc/services root@192.168.122.154:/etc/
以下步骤在server60和server54上实施:
[root@server60
~]# mkdir /opt/csync2
[root@server60
xinetd.d]# /etc/init.d/xinetd start
[root@server60
xinetd.d]# netstat -antple
tcp
0 0 :::30865 :::*
LISTEN 0 28973 24162/xinetd
端口说明启动成功.
测试同步是否正常:
注：所有机子上要有所有主机的解析
在两台机器中的任一台创建或者删除一个文件,然后查看其它机器是否创建或删除。
如果遇到问题就用csync2
-xv命令手动调试并,根据错误信息作调整。
注:csync2相关命令介绍
csync2
-vvv -T 测试csync配置是否正确,可以看到相关SQL执行过程.
csync2
-xv 执行同步命令
csync2
-xvvv 执行同步命令,并显示出详细的信息.
应该注意的问题.
缓存相关的目录尽量不要用csync2去处理,这个程序目录尽量交给NFS处理.