CentOS repeatedly restart

[Mandar Khire]

This is my first question in Linux/Unix section. I am java programmer but now trying to use Linux for java project.
I am using centos.
centos release 5.4(final)
kernel 2.6.18- 308.1.1 el5PAE on an i686
I successfully install & config Mysql, jdk.
For my java project, i need to use DRBD
So i try to install it & try to configure it...
Now i got error as bellow:-
Error 1:-

Localhost login:- Traceback(most recent call last)
File "/usr/sbin/yum-updatedsd", line 42,in ?
from yum.config import baseconfigOption,IntOption,ListOption,BoolOption
File "/usr/lib/python2.4/site-packages/yum/__init__.py",line 50,in ?
import config
File "/usr/lib/python2.4/site-packages/yum/config.py",line 27,in?
from parser import ConfigPreProcessor
File "/usr/lib/python2.4/site-package/yum/parser.py",line 3,in?
import urlgrabber
File "/usr/lib/python2.4/site-packages/urlgrabber/__init__.py",line 53,in ?
from grabber import url grab,urlopen/urlread
File "/usr/lib/python2.4/site_packages/urlgrabber/grabber.py", line 412,in ?
import keepalive
File "/usr/lib/pytho2.4/sitepackages/urlgrabber/keepali8ve.py", line 339,in ?
Class HTTPSHandler(keepAliveHandler,urllib2.HTTPSHandler);
AttributeError: 'module' object has no attribute 'HTTPsHandler'

Error 2:-

Starting drbd:/etc/drbd.config:32:in resource repdata, 
on dtp233.galaxy.in{...}...on dtp244.galaxy.in{...}
There are multiple host sections for the peer.
May be Misspelled localhost name 'localhost.localdoamin'?
/etc/drbd.conf:32:in resource repdata,there is no host section for this host.
Missing 'on localhost.localdomain{...}'?
Starting DRBD resource4s:/etc/drbd.conf:32:in
resource repdata,on dtp233.galaxy.in{...}...
on dtp244.galaxy.in{...}:.

Error 3:-

The display server has been shut down about 6 times in the last 90 seconds. It is likely that something bad is going on.waiting for 2 minutes before trying again on display :0.

In error 3 screen i got ok button when i use it, all repeats as above.
Even i try to step by step booting but no use.
I want help.Please.

[Tim Holloway]

WHY does a JAVA project require DRBD? DRBD is a replicator. I use it to keep a hot mirror of my critical network share files, but no application ever depends on that fact. As far as they are concerned, the DRBD partitions are just ordinary filesystems.

One thing is for sure: "localhost.localdoamin" is definitely not spelled right, just like the error message says.